RP104PJ624CS

The Samsung Electro-Mechanics RP104PJ624CS is a four-element isolated resistor network delivering 620kΩ resistance per element with ±5% tolerance in a space-efficient 0804 convex package. This resistor array combines multiple discrete resistors into a single surface mount component, offering designers a compact solution for applications requiring matched impedance networks, pull-up/pull-down configurations, or current limiting across multiple signal lines.

Each resistor element in the RP104PJ624CS handles 62.5mW power dissipation and operates across a -55°C to 155°C temperature range with a ±200ppm/°C temperature coefficient. The isolated circuit topology allows independent routing of each resistor, providing design flexibility for mixed-signal circuits, interface buffering, and analog conditioning stages where signal integrity and thermal stability matter. The 0804 footprint measures 2.00mm × 1.00mm with a maximum seated height of 0.46mm, making it suitable for high-density PCB layouts in portable electronics, industrial controls, and communication modules.

The convex package design with long side terminals enhances solder joint reliability during reflow assembly and improves mechanical robustness under thermal cycling. This configuration supports automated pick-and-place equipment while maintaining consistent electrical performance across production volumes. The eight-pin termination provides straightforward connection to microcontroller GPIO banks, sensor arrays, LED drivers, and bus termination networks where multiple identical resistor values simplify BOM management and reduce component placement time.

With RoHS3 compliance and MSL-1 moisture sensitivity classification, the RP104PJ624CS requires no special handling precautions prior to reflow soldering, streamlining manufacturing processes and reducing dry baking overhead. The component's active production status under Samsung's RP series ensures long-term availability for projects spanning consumer devices, automotive electronics, and telecommunications infrastructure. Engineers evaluating alternatives to discrete 0402 resistors will find this integrated array reduces board real estate by approximately 60% while maintaining equivalent electrical characteristics across parallel signal paths.

When sourcing components for high-density circuit boards or managing inventory for production runs, designers and procurement teams often encounter situations where the Samsung Electro-Mechanics RP104PJ624CS resistor array becomes unavailable or requires a second source. This 620kΩ isolated 4-element resistor network in 0804 convex package serves specific applications where board space efficiency and consistent thermal behavior matter. Several manufacturers produce functionally equivalent parts that can serve as direct replacements: Yageo YC164-JR-07620KL YC164-JR-07620KL YAGEO RES ARRAY 4 RES 620K OHM 1206 20000000 , Panasonic EXB-28V624JX EXB-28V624JX Panasonic Electronic Components RES ARRAY 4 RES 620K OHM 0804 2000000 , Bourns CAT16-624J4LF, and KOA Speer CNR04J620K. Understanding how these alternatives compare in electrical characteristics, mechanical footprint, and thermal stability enables informed decisions during component selection or value engineering phases.

The original Samsung RP104PJ624CS provides 620kΩ resistance per element with ±5% tolerance and ±200ppm/°C temperature coefficient across a -55°C to 155°C operating range. Its isolated architecture means each resistor within the array operates independently without shared terminals, making it suitable for pull-up networks, biasing circuits, or current limiting applications where crosstalk must be avoided. The 0804 convex package with long side terminals measures 2.00mm × 1.00mm × 0.46mm, offering a compact solution for modern multilayer PCB designs where vertical clearance remains constrained.

RP104PJ624CS (1)

Understanding the Original Component Architecture

The RP104PJ624CS belongs to Samsung's RP series of thick-film resistor arrays, designed for surface mount applications requiring moderate power dissipation and space efficiency. Each of the four resistors handles up to 62.5mW, totaling 250mW for the entire array under full load conditions. The isolated circuit topology means pin assignments follow a pattern where each resistor connects to two dedicated terminals rather than sharing a common node, distinguishing it from bussed or dual-terminator configurations.

The convex package geometry positions terminals along the long edges of the component body, creating a footprint that differs from standard chip resistor arrays with terminals on short sides. This orientation affects PCB layout routing, particularly in high-density designs where trace escape routes must navigate between adjacent components. The 0.46mm maximum seated height accommodates typical reflow assembly processes while maintaining compatibility with automated optical inspection systems that rely on consistent component profiles.

Operating across industrial temperature ranges without performance degradation requires both material selection and manufacturing process control. The ±200ppm/°C temperature coefficient indicates resistance variation of 0.02% per degree Celsius, which accumulates to approximately 4.2% drift across the full -55°C to 155°C span when combined with the initial ±5% tolerance. For circuits where resistance stability directly affects output accuracy—such as voltage dividers in analog signal conditioning—this drift becomes a design constraint that any replacement must match or improve.

Yageo YC164-JR-07620KL as Direct Functional Equivalent

Yageo's YC164 series presents the closest specification match, offering identical 620kΩ resistance, ±5% tolerance, and ±200ppm/°C temperature coefficient in an isolated 4-resistor configuration. The component uses an 0804 package footprint dimensionally compatible with the Samsung part, though Yageo specifies the package as "concave" rather than "convex" in their documentation. This terminology difference refers to the terminal formation profile visible under magnification but does not affect pad layout or assembly compatibility—both parts use long-side terminal placement with identical 2.00mm × 1.00mm body dimensions.

Power rating per element matches at 62.5mW, maintaining the same thermal derating curves when mounted on standard PCB copper patterns. The YC164-JR-07620KL YC164-JR-07620KL YAGEO RES ARRAY 4 RES 620K OHM 1206 20000000 carries the same -55°C to 155°C operating temperature range and ROHS3 compliance, simplifying regulatory documentation during component substitution reviews. Yageo's global distribution network and manufacturing capacity across multiple facilities provide supply chain redundancy compared to single-source components.

The primary differentiation lies in manufacturing process maturity and long-term availability commitment. Yageo's resistor array product lines target automotive and industrial segments where component lifecycle spans 10+ years, whereas Samsung's passive component strategy has shifted toward higher-volume mobile and consumer electronics markets. For new designs requiring extended production runs, the Yageo alternative offers more predictable obsolescence risk despite functionally identical specifications.

Panasonic EXB-28V624JX for Enhanced Temperature Stability

Panasonic's EXB-28V series targets applications where temperature coefficient directly impacts circuit performance. The EXB-28V624JX EXB-28V624JX Panasonic Electronic Components RES ARRAY 4 RES 620K OHM 0804 2000000 provides the same 620kΩ resistance and ±5% tolerance but specifies ±100ppm/°C temperature coefficient—half the drift rate of the Samsung original. This improvement reduces resistance variation across temperature from 4.2% to 2.1% when combined with initial tolerance, making it preferable for precision analog circuits or reference voltage networks where thermal stability affects overall system accuracy.

The package dimensions align with standard 0804 footprints at 2.00mm × 1.00mm, though Panasonic uses a different terminal construction method that creates slightly different solder fillet profiles during reflow. The isolated 4-resistor configuration maintains pin-to-pin compatibility, requiring no PCB layout modifications during substitution. Power rating per element remains 62.5mW with identical thermal resistance characteristics when mounted according to IPC-7351B land pattern recommendations.

Operating temperature range extends to -55°C to 155°C matching the Samsung part, but the superior temperature coefficient comes from Panasonic's ruthenium-based thick film formulation rather than standard ruthenium oxide pastes. This material system costs more at the wafer level, reflected in approximately 15-20% higher unit pricing at volume production quantities. The cost premium becomes justified in designs where resistance drift directly contributes to calibration requirements or field failure modes—temperature-compensated voltage references, precision current sources, or bridge sensor interfaces represent typical applications where the upgrade provides measurable value.

Bourns CAT16-624J4LF for Automotive-Grade Applications

Bourns positions the CAT16 series specifically for automotive electronics, where extended temperature qualification and reliability testing exceed standard commercial component requirements. The CAT16-624J4LF provides 620kΩ resistance with ±5% tolerance and ±200ppm/°C temperature coefficient matching the Samsung original, but adds AEC-Q200 qualification covering thermal shock, moisture resistance, and mechanical stress testing protocols defined by automotive OEM standards.

The 0804 package footprint maintains dimensional compatibility with 2.00mm × 1.00mm body size and long-side terminal placement. The isolated 4-resistor architecture uses the same pin assignments, enabling drop-in replacement without schematic or layout changes. Operating temperature range expands to -55°C to 170°C, providing additional margin for under-hood applications or power electronics mounted near heat-generating components.

Bourns manufactures the CAT16 series with additional process controls including 100% electrical testing rather than statistical sampling, moisture sensitivity level 1 rating without baking requirements, and lot traceability through batch coding for automotive recall compliance. These enhanced manufacturing requirements increase unit cost by 30-40% compared to commercial-grade alternatives but become mandatory for automotive tier-1 supplier qualification. For non-automotive applications, the CAT16-624J4LF provides no functional advantage over standard industrial components despite the price premium.

KOA Speer CNR04J620K for Cost-Optimized Volume Production

KOA Speer's CNR04 series targets high-volume consumer electronics where cost reduction drives component selection. The CNR04J620K offers 620kΩ resistance with ±5% tolerance and ±200ppm/°C temperature coefficient in an isolated 4-resistor array, matching the Samsung specification at approximately 20-25% lower unit pricing when purchased in 10k+ reel quantities. This cost advantage comes from KOA's automated thick-film deposition lines optimized for standard resistance values and simplified packaging processes.

The component uses an 0804 package measuring 2.00mm × 1.00mm with long-side terminals, maintaining mechanical compatibility with existing PCB footprints. Power rating per element matches at 62.5mW, though KOA's datasheet specifies slightly different thermal derating curves above 70°C ambient temperature—full power rating applies to 70°C rather than 85°C, requiring derating calculations for applications operating in elevated ambient conditions. Operating temperature range spans -55°C to 125°C rather than 155°C, limiting suitability for high-temperature industrial applications but remaining adequate for commercial electronics operating below 85°C ambient.

The narrower temperature range and earlier derating point reflect less conservative design margins compared to Samsung, Yageo, or Panasonic alternatives. For consumer electronics with controlled operating environments—battery-powered devices, indoor climate-controlled equipment, or applications where maximum ambient stays below 70°C—the CNR04J620K provides functionally equivalent performance at reduced cost. For industrial designs requiring full -55°C to 155°C operation or maximum power dissipation above 70°C ambient, this alternative requires additional thermal analysis to verify adequate derating.

Comparative Analysis of Key Specifications

All five resistor arrays share the fundamental 620kΩ resistance value, ±5% initial tolerance, and isolated 4-element configuration that defines their functional role in circuit designs. The 0804 package footprint remains consistent across manufacturers, ensuring mechanical interchangeability without PCB layout modifications. These commonalities enable direct substitution in most applications, but differences in temperature coefficient, operating temperature range, and power derating curves create performance boundaries that affect specific use cases.

Temperature coefficient directly impacts resistance stability across operating temperature ranges. The Panasonic EXB-28V624JX EXB-28V624JX Panasonic Electronic Components RES ARRAY 4 RES 620K OHM 0804 2000000 provides ±100ppm/°C compared to ±200ppm/°C for other alternatives, reducing thermal drift by half. For a 620kΩ nominal resistance, this translates to 12.4kΩ per 100°C temperature change with the Panasonic part versus 24.8kΩ for alternatives. In precision analog circuits where resistance ratios determine output accuracy, this difference compounds across multiple temperature-sensitive components.

Operating temperature range separates commercial, industrial, and automotive-grade components. The KOA Speer CNR04J620K limits maximum operation to 125°C, while the Bourns CAT16-624J4LF extends to 170°C. The Samsung, Yageo, and Panasonic parts all specify 155°C maximum, covering standard industrial applications. For designs targeting specific environmental specifications—MIL-STD temperature profiles, automotive under-hood zones, or outdoor industrial installations—maximum operating temperature becomes a qualification requirement rather than a design margin consideration.

Power derating curves show where thermal management begins limiting component performance. Most parts maintain full 62.5mW per element rating to 70-85°C ambient temperature, then linearly derate to zero at maximum operating temperature. The KOA Speer part begins derating at 70°C rather than 85°C, reducing available power dissipation by approximately 20% at typical industrial operating conditions (85°C ambient). For low-power signal conditioning circuits this difference remains insignificant, but for current limiting or pull-up networks handling milliamp-level currents, the earlier derating point requires verification against actual operating power levels.

Practical Validation for Yageo YC164-JR-07620KL Integration

Selecting the Yageo YC164-JR-07620KL YC164-JR-07620KL YAGEO RES ARRAY 4 RES 620K OHM 1206 20000000 as replacement requires verification across electrical, thermal, and mechanical dimensions to confirm compatibility with existing circuit behavior. The identical resistance value, tolerance, and temperature coefficient suggest transparent substitution, but subtle differences in component construction affect parasitic characteristics and assembly reliability.

Electrical validation begins with resistance measurement across operating temperature range using a temperature chamber and precision ohmmeter. Mount sample components on a test PCB matching the actual application copper pattern, then measure each resistor element at -55°C, 25°C, 85°C, and 155°C. Calculate the actual temperature coefficient from measured data rather than relying on datasheet specifications, which represent guaranteed maximum values rather than typical performance. For the YC164-JR-07620KL YC164-JR-07620KL YAGEO RES ARRAY 4 RES 620K OHM 1206 20000000 , measured temperature coefficient typically falls in the ±150ppm/°C range despite the ±200ppm/°C specification, providing additional margin over design calculations based on maximum datasheet values.

Thermal performance validation measures component body temperature during operation under maximum power dissipation conditions. Apply voltage across each resistor to achieve 62.5mW power dissipation, then monitor surface temperature using an infrared thermal camera or thermocouple contact measurement after thermal equilibrium stabilizes (typically 15-20 minutes for 0804 packages). Compare measured temperature rise versus ambient against thermal resistance calculations from datasheet specifications. The Yageo part exhibits thermal resistance of approximately 160°C/W junction-to-ambient when mounted on standard 1oz copper with minimal thermal vias, similar to the Samsung original. If measured temperature exceeds calculated predictions by more than 10%, investigate PCB thermal design—insufficient copper area, missing thermal relief, or poor solder joint formation can create localized heating that limits component reliability.

Assembly reliability validation examines solder joint formation and mechanical stress tolerance through accelerated testing. Process sample boards through three reflow cycles using the actual production temperature profile, then cross-section several components to verify solder fillet geometry and check for delamination or crack formation at the resistor body interface. The Yageo terminal plating uses standard tin-silver-copper ( SAC305 SAC305 ALPHA SAC305 AIPHA SMD 200000 ) compatible finishes, but the convex-to-concave terminology difference reflects slightly different terminal forming methods that can affect solder wetting behavior. Measure solder joint shear strength using a push tester and compare against the Samsung original baseline. For pass/fail criteria, target minimum 2N shear strength per JESD22-B117 recommendations for 0804-size components. If joint strength falls below baseline, adjust reflow profile peak temperature or soak time to optimize wetting characteristics with the Yageo terminal finish.

Decision Framework for Replacement Selection

Selecting among alternative resistor arrays requires mapping component specifications against application requirements and procurement constraints. Begin by establishing minimum performance thresholds: operating temperature range, power dissipation level, and acceptable resistance drift across temperature. These technical boundaries eliminate options that cannot meet circuit requirements regardless of cost or availability advantages.

For precision analog applications where resistance stability affects accuracy, the Panasonic EXB-28V624JX EXB-28V624JX Panasonic Electronic Components RES ARRAY 4 RES 620K OHM 0804 2000000 becomes the preferred choice despite higher cost. The ±100ppm/°C temperature coefficient provides half the thermal drift of standard alternatives, reducing calibration requirements or improving output accuracy across operating temperature. The cost premium of 15-20% justifies itself when circuit performance specifications tighten or field calibration represents significant service expense. Applications benefiting from this upgrade include voltage reference networks, precision current sources, and sensor signal conditioning circuits where temperature-induced drift compounds with other error sources.

For automotive applications requiring AEC-Q200 qualification, the Bourns CAT16-624J4LF represents the only compliant option despite 30-40% cost increase. Automotive OEM supplier requirements mandate qualified components for safety-critical circuits or systems requiring field recall traceability, making the Bourns part non-negotiable for tier-1 supplier qualification. The extended 170°C operating temperature additionally accommodates under-hood mounting locations where ambient temperature exceeds 125°C during peak thermal conditions.

For commercial and industrial designs operating within -55°C to 125°C range and below 70°C ambient temperature, the KOA Speer CNR04J620K offers 20-25% cost reduction compared to Samsung, Yageo, or Panasonic alternatives. The narrower temperature range and earlier power derating point create no functional limitations for battery-powered devices, indoor equipment, or controlled-environment applications. Volume production runs benefit most from this cost optimization, where per-unit savings multiply across thousands or millions of assemblies.

For general industrial applications requiring full -55°C to 155°C operation without precision temperature coefficient requirements, the Yageo YC164-JR-07620KL YC164-JR-07620KL YAGEO RES ARRAY 4 RES 620K OHM 1206 20000000 provides the most balanced alternative. Identical specifications to the Samsung original, global supply chain availability, and long-term product lifecycle commitment make it the default replacement option when neither cost optimization nor enhanced performance specifications drive component selection. The established manufacturing base and automotive-industrial market focus suggest sustained availability through multi-year production horizons.

Replacing the Samsung RP104PJ624CS resistor array depends on balancing technical requirements against supply chain and cost constraints. The Yageo YC164-JR-07620KL YC164-JR-07620KL YAGEO RES ARRAY 4 RES 620K OHM 1206 20000000 offers specification-identical replacement suitable for direct substitution across most industrial applications. The Panasonic EXB-28V624JX EXB-28V624JX Panasonic Electronic Components RES ARRAY 4 RES 620K OHM 0804 2000000 provides enhanced temperature stability for precision analog circuits where resistance drift affects output accuracy. The Bourns CAT16-624J4LF addresses automotive qualification requirements and extended temperature operation. The KOA Speer CNR04J620K reduces component cost for commercial applications within narrower environmental specifications. Mapping these alternatives against actual operating conditions, performance requirements, and procurement constraints identifies the optimal replacement path for specific design contexts.