RMCF2010FT499K Equivalent & Substitute Parts

Part Overview

The RMCF2010FT499K is a 499 kOhms ±1% 0.75W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with 3256 units available in inventory. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and automotive compliance requirements.

Key Parameters

Parameter	Value
Resistance	499 kOhms
Tolerance	±1%
Power Rating	0.75W (3/4W)
Package / Case	2010 (5025 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RMCF2010FT499K are qualified based on the following criteria:

Resistance value: 499 kOhms
Tolerance: ±1%
Power rating: 0.75W
Package: 2010 (5025 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

All identified substitutes maintain these core electrical and mechanical parameters, ensuring functional equivalence in circuit applications. Variations in automotive qualification features and moisture resistance characteristics are noted in the parameter comparison table.

Parameter Comparison

Parameter	RMCF2010FT499K (Stackpole)	CRCW2010499KFKEF (Vishay Dale)	AC2010FK-07499KL (YAGEO)	RC2010FK-07499KL (YAGEO)
Resistance	499 kOhms	499 kOhms	499 kOhms	499 kOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.75W	0.75W	0.75W	0.75W
Package	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Size / Dimension	0.197" L x 0.098" W (5.00mm x 2.50mm)	0.197" L x 0.098" W (5.00mm x 2.50mm)	0.197" L x 0.098" W (5.00mm x 2.50mm)	0.197" L x 0.098" W (5.00mm x 2.50mm)
Height - Seated (Max)	0.028" (0.70mm)	0.028" (0.70mm)	0.026" (0.65mm)	0.026" (0.65mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Automotive Rating	AEC-Q200	AEC-Q200	AEC-Q200	Not specified
Moisture Resistance	Standard	Standard	Moisture Resistant	Moisture Resistant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All four parts maintain active production status and ROHS3 compliance. The RMCF2010FT499K, CRCW2010499KFKEF, and AC2010FK-07499KL carry explicit AEC-Q200 automotive qualification. The RC2010FK-07499KL does not specify AEC-Q200 rating but meets all electrical and mechanical parameters.

For automotive applications requiring AEC-Q200 certification, the CRCW2010499KFKEF (Vishay Dale) and AC2010FK-07499KL (YAGEO) are direct equivalents to the RMCF2010FT499K. The AC2010FK-07499KL and RC2010FK-07499KL offer moisture-resistant thick film construction, which may provide enhanced reliability in high-humidity environments.

Height variation exists between manufacturers: Stackpole and Vishay parts have a maximum seated height of 0.028" (0.70mm), while YAGEO parts are 0.026" (0.65mm). This difference is within typical PCB design tolerances but should be verified for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can CRCW2010499KFKEF replace RMCF2010FT499K in automotive circuits?

A: Yes. Both parts share identical electrical specifications (499 kOhms ±1%, 0.75W), mechanical dimensions (2010 package), and AEC-Q200 automotive qualification. They are functionally equivalent for direct substitution.

Q: What is the difference between AC2010FK-07499KL and RC2010FK-07499KL?

A: Both are YAGEO 499 kOhms ±1% 0.75W 2010 resistors with moisture-resistant thick film construction. AC2010FK-07499KL carries AEC-Q200 automotive rating; RC2010FK-07499KL does not specify this certification. Electrical performance and mechanical dimensions are identical.

Q: Does the 0.002" (0.05mm) height difference affect PCB assembly?

A: The height variation between Stackpole/Vishay (0.028") and YAGEO (0.026") parts is minimal and typically accommodated within standard PCB design tolerances. Verify clearance requirements for your specific application if space constraints exist.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four parts—RMCF2010FT499K, CRCW2010499KFKEF, AC2010FK-07499KL, and RC2010FK-07499KL—are ROHS3 compliant with MSL rating 1 (Unlimited).

Q: Which substitute offers the best availability?

A: RC2010FK-07499KL has the highest inventory at 8980 units, followed by AC2010FK-07499KL at 5710 units and CRCW2010499KFKEF at 4400 units. RMCF2010FT499K has 3256 units in stock.

Q: Can RC2010FK-07499KL be used in AEC-Q200 automotive applications?

A: RC2010FK-07499KL meets all electrical and mechanical requirements but does not carry explicit AEC-Q200 certification. For applications requiring AEC-Q200 compliance, use RMCF2010FT499K, CRCW2010499KFKEF, or AC2010FK-07499KL.

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