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Home > Products > Resistors > Chip Resistor - Surface Mount > RMCF1210FT84K5
Stackpole Electronics Inc
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RMCF1210FT84K5

In Stock 1672228 pcs Reference Price(In US Dollars)
1+
$0.0194
200+
$0.0075
500+
$0.0073
1000+
$0.0072
Manufacturer Part Number:
RMCF1210FT84K5
Manufacturer / Brand
Stackpole Electronics Inc
Part of Description:
RES 84.5K OHM 1% 1/2W 1210
Datasheets:
RMCF1210FT84K5(1).pdfRMCF1210FT84K5(2).pdfRMCF1210FT84K5(3).pdfRMCF1210FT84K5(4).pdfRMCF1210FT84K5(5).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 1672228 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number RMCF1210FT84K5
Manufacturer / Brand Stackpole Electronics Inc
Stock Quantity 1672228 pcs Stock
Category Resistors > Chip Resistor - Surface Mount
Description RES 84.5K OHM 1% 1/2W 1210
Lead Free Status / RoHS Status: ROHS3 Compliant
Tolerance ±1%
Temperature Coefficient ±100ppm/°C
Supplier Device Package 1210
Size / Dimension 0.126" L x 0.098" W (3.20mm x 2.50mm)
Series RMCF
Resistance 84.5 kOhms
Ratings AEC-Q200
Power (Watts) 0.5W, 1/2W
Package / Case 1210 (3225 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 155°C
Number of Terminations 2
Height - Seated (Max) 0.028" (0.70mm)
Features Automotive AEC-Q200
Failure Rate -
Composition Thick Film

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can RMCF1210FT84K5 be used in a high-voltage divider or bias network, and how should I check self-heating?
RMCF1210FT84K5 is commonly used in divider and bias networks, but the design check should be based on both voltage and dissipation. For RMCF1210FT84K5, verify that the resistor sees less than its continuous power limit under worst-case operating temperature and that the applied voltage does not create localized heating from leakage, contamination, or nearby hot components. In a divider, current is often chosen so that the resistor’s dissipation stays well below 0.5 W at maximum ambient, which helps keep resistance shift from self-heating small. For high-impedance bias paths, also confirm that board leakage and input bias currents do not disturb the 84.5 kΩ node enough to affect circuit accuracy.
Is RMCF1210FT84K5 suitable for automotive electronics, and what should I verify before using it in an ECU or sensor module?
RMCF1210FT84K5 carries AEC-Q200: qualification, so it fits many automotive passive-component use cases, including ECUs, body electronics, and sensor modules. With RMCF1210FT84K5, the practical check is not only qualification status but also the specific stress profile of the final assembly: vibration, thermal cycling, humidity exposure, solder joint reliability, and any load dump or transient events around the resistor. If the resistor is used in a safety-related signal path, confirm that tolerance, temperature coefficient, and long-term drift still support the error budget over the full vehicle temperature range.
Can RMCF1210FT84K5 handle pulse loads or surge events, such as inrush limiting or transient suppression paths?
RMCF1210FT84K5 is a thick-film chip resistor, so it is usually fine for steady-state biasing and general-purpose current limiting, but pulse and surge behavior should be checked separately from continuous power. For RMCF1210FT84K5, confirm the peak pulse energy, pulse width, and repetition rate rather than relying only on the 0.5 W rating. In inrush or transient paths, thick-film resistors can see localized heating and resistance shift if the energy is repetitive or high amplitude, so a derating margin or a dedicated pulse-rated resistor may be a better fit when the waveform is severe.
Is RMCF1210FT84K5 accurate enough for precision analog circuits, such as ADC scaling or reference trimming?
RMCF1210FT84K5 can work in many analog support circuits, but it is not usually chosen as a precision reference element where very tight ratio stability is required. For RMCF1210FT84K5, the 1% tolerance and ±100 ppm/°C temperature coefficient mean the resistance can move enough across production spread and temperature to affect gain or offset budgets in high-resolution ADC front ends. If the circuit depends on accurate resistor ratios, consider whether the system error can tolerate that variation or whether a tighter-tolerance thin-film part would reduce calibration effort.
What should I check when replacing a different resistor value or package with RMCF1210FT84K5 on an existing PCB?
When replacing another part with RMCF1210FT84K5, check more than resistance value and footprint. RMCF1210FT84K5 uses a 1210 package, so pad geometry, solder fillet, and assembly clearances should match the larger body size and heat capacity. Also verify the original circuit’s dissipation, because a smaller resistor may have relied on a different thermal environment, and confirm that the 84.5 kΩ value is still correct after any tolerance stack-up or calibration change. If the previous design used a lower-power package, the layout may need updated pad spacing to preserve solder reliability and creepage.
Is ERJ-14NF8452U a practical substitute for RMCF1210FT84K5, and what trade-offs should I expect?
ERJ-14NF8452U is listed as a substitute for RMCF1210FT84K5, but it should still be reviewed for package dimensions, power rating, tolerance, temperature coefficient, and qualification level before release to production. With RMCF1210FT84K5, the key design questions are whether the substitute fits the same footprint and whether its thermal performance supports the same dissipation in the final enclosure. Even when the resistance value matches, differences in body size, voltage rating, and process technology can affect long-term stability, so the substitute should be validated in the exact operating circuit and not only by parametric comparison.
How does RMCF1210FT84K5 behave in high-temperature industrial equipment, and what drift should I expect over time?
RMCF1210FT84K5 is specified for -55°C to 155°C, which makes it usable in many industrial and under-hood style environments, provided the resistor is not operated near its dissipation limit continuously. For RMCF1210FT84K5, long-term resistance change is mainly influenced by self-heating, humidity exposure, solder joint quality, and thermal cycling rather than the nominal rating alone. In equipment that runs hot for years, designers typically verify the circuit at elevated temperature, then check whether any resistance drift still stays inside the system’s calibration or threshold margins.
What PCB layout and soldering considerations apply to RMCF1210FT84K5 in mass production?
RMCF1210FT84K5 is a standard 1210 surface-mount resistor, so it generally works well with normal reflow assembly if the footprint matches the recommended land pattern for the package. For RMCF1210FT84K5, keep pad symmetry reasonable to avoid tombstoning, and avoid excessive copper imbalance that can create uneven heating during reflow. If the resistor will dissipate meaningful power, use copper area and spacing around the pads to help spread heat, while still keeping the solder joint robust and the component centered after reflow.

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RMCF1210FT84K5

RMCF1210FT84K5

Stackpole Electronics Inc

RES 84.5K OHM 1% 1/2W 1210

In Stock: 1672228

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