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Home > Products > Resistors > Through Hole Resistors > CMF604K7800FKR6
Vishay Dale
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CMF604K7800FKR6

In Stock 575054 pcs Reference Price(In US Dollars)
1+
$0.1146
200+
$0.0444
500+
$0.0429
1000+
$0.042
Manufacturer Part Number:
CMF604K7800FKR6
Manufacturer / Brand
Vishay Dale
Part of Description:
RES 4.78K OHM 1W 1% AXIAL
Datasheets:
Lead Free Status / RoHS Status:
RoHS non-compliant
Stock Condition:
New original, 575054 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number CMF604K7800FKR6
Manufacturer / Brand Vishay Dale
Stock Quantity 575054 pcs Stock
Category Resistors > Through Hole Resistors
Description RES 4.78K OHM 1W 1% AXIAL
Lead Free Status / RoHS Status: RoHS non-compliant
Tolerance ±1%
Temperature Coefficient ±100ppm/°C
Supplier Device Package Axial
Size / Dimension 0.145' Dia x 0.344' L (3.68mm x 8.74mm)
Series CMF
Resistance 4.78 kOhms
Power (Watts) 1W
Package / Case Axial
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 175°C
Number of Terminations 2
Height - Seated (Max) -
Features Flame Retardant Coating, Moisture Resistant, Safety
Failure Rate -
Composition Metal Film
Base Product Number CMF60

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.

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Company Name : IC COMPONENTS LTD
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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 CMF604K7800FKR6 be used as a drop-in replacement for a 4.7 kOhm through-hole resistor?
CMF604K7800FKR6 is a 4.78 kOhm, ±1%, 1W axial metal film resistor, so it can replace a 4.7 kOhm part only when the circuit can tolerate the 1.7% higher nominal resistance. In bias networks, feedback paths, and timing circuits, that small shift may change setpoints or frequency slightly. Verify the original design margin, lead spacing, and power dissipation before substituting CMF604K7800FKR6.
Is CMF604K7800FKR6 suitable for high-temperature industrial environments?
CMF604K7800FKR6 is rated for -55°C to 175°C, which makes it suitable for many elevated-temperature designs if the resistor is derated properly with ambient temperature. In practice, the allowable continuous power falls as board temperature rises, so the 1W rating should be reduced in hot enclosures or near heat sources. For long-life industrial use, keep the part away from localized hotspots and check solder joint reliability under thermal cycling.
Can CMF604K7800FKR6 handle surge, inrush, or pulse loading?
CMF604K7800FKR6 is a metal film axial resistor, which is typically chosen for stable resistance and moderate continuous dissipation rather than repeated high-energy pulses. If the application has capacitor charging, relay suppression, or startup inrush, check the pulse energy against the resistor’s transient capability instead of relying on the 1W steady-state rating alone. For repetitive surge duty, a resistor specifically rated for pulse loading may be a better fit than CMF604K7800FKR6.
Is CMF604K7800FKR6 a good choice for precision analog circuits?
CMF604K7800FKR6 can work well in precision analog circuits where a 1% tolerance and 100 ppm/°C temperature coefficient are acceptable. It is commonly used in divider networks, feedback paths, and reference trimming where moderate precision and low drift are needed. If the design requires tighter matching, lower tempco, or long-term ratio stability, CMF604K7800FKR6 may need to be paired with calibration or replaced with a tighter-grade resistor.
What should I check before using CMF604K7800FKR6 as a replacement in an existing axial resistor footprint?
Before using CMF604K7800FKR6, confirm the lead spacing, body length, and board clearance match the original part. Its axial body size is 3.68 mm x 8.74 mm, so mechanical fit can differ from other 1W resistors even when the resistance value is similar. Also verify the assembly process, since CMF604K7800FKR6 is supplied in tape and reel but is still a through-hole axial part.
Is CMF604K7800FKR6 appropriate for moisture-prone or outdoor equipment?
CMF604K7800FKR6 includes a moisture-resistant, flame-retardant coating, which helps in environments with humidity or condensation. That said, the resistor should still be used with appropriate PCB coating, enclosure protection, and creepage/clearance design if the end product is exposed to sustained moisture, contamination, or outdoor conditions. For severe environments, the surrounding assembly design matters as much as the resistor coating on CMF604K7800FKR6.
Can CMF604K7800FKR6 be used in safety-related circuits or as a fusible element?
CMF604K7800FKR6 is a safety metal film resistor, but it should only be used in a safety-related role if the full circuit requirement matches its electrical and failure behavior. It is not a universal substitute for a certified fusible resistor, current-sense element, or safety component with specific regulatory approvals. If the design depends on controlled open-circuit failure under fault conditions, validate CMF604K7800FKR6 against the system safety standard, not just the resistor type.
How does CMF604K7800FKR6 compare with carbon film or wirewound resistors in practical design use?
CMF604K7800FKR6, as a metal film resistor, usually offers better stability and lower noise than many carbon film parts, while avoiding the inductive behavior often seen in wirewound resistors. Compared with wirewound devices, it is generally a better fit for general-purpose analog, bias, and feedback applications where inductance could affect behavior. If the design needs very high pulse energy or very low ohmic values at high power, another resistor technology may be more suitable than CMF604K7800FKR6.
What derating strategy should be used for CMF604K7800FKR6 in a warm PCB layout?
For CMF604K7800FKR6, the practical limit is set by resistor body temperature, not just ambient temperature. If the resistor sits near power devices or regulators, use a conservative dissipation margin and validate the worst-case PCB temperature rise under full load. In many layouts, a 1W axial resistor like CMF604K7800FKR6 is run well below its nameplate power to preserve value stability and solder joint reliability.
What alternatives should I consider if I need a close substitute for CMF604K7800FKR6?
A close substitute for CMF604K7800FKR6 should match the 4.78 kOhm value, 1% tolerance, 1W power rating, axial lead form, and similar temperature coefficient and operating range. Depending on the circuit, a 4.75 kOhm or 4.7 kOhm part may be acceptable, but the electrical error should be checked against the original design tolerance stack-up. If you are replacing CMF604K7800FKR6 in a production design, also compare lead form, coating, power derating curve, and supplier qualification status before approving the change.

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