RMCF2010FT2K49 Equivalent & Substitute Parts

Part Overview

The RMCF2010FT2K49 is a 2.49 kOhms ±1% 0.75W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor meets automotive AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently active in production with 2957 units in stock. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or design flexibility while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	2.49 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)
Terminations	2
Size / Dimension	0.197" L x 0.098" W (5.00mm x 2.50mm)
Height - Seated (Max)	0.028" (0.70mm)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

Resistance value: 2.49 kOhms
Tolerance: ±1%
Power rating: 0.75W
Package designation: 2010 (5025 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

All substitute parts listed meet these criteria. Variations in product status, manufacturer features (such as moisture resistance), and seated height within tolerance do not affect functional substitutability in applications designed for the RMCF2010FT2K49.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	RoHS3	MSL	Product Status	Inventory (Pcs)
RMCF2010FT2K49	Stackpole Electronics Inc	2.49 kΩ	±1%	0.75	2010	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active	2957
CRCW20102K49FKEF	Vishay Dale	2.49 kΩ	±1%	0.75	2010	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active	8300
ERJ-12SF2491U	Panasonic Electronic Components	2.49 kΩ	±1%	0.75	2010	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Not For New Designs	9313
AC2010FK-072K49L	YAGEO	2.49 kΩ	±1%	0.75	2010	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	1	Active	2700
RC2010FK-072K49L	YAGEO	2.49 kΩ	±1%	0.75	2010	±100ppm/°C	-55°C ~ 155°C	No	Yes	1	Active	5300

Engineering Selection Recommendations

For new designs and production applications, CRCW20102K49FKEF (Vishay Dale) and AC2010FK-072K49L (YAGEO) are preferred substitutes. Both parts maintain Active product status, full AEC-Q200 automotive qualification, and ROHS3 compliance. CRCW20102K49FKEF offers the highest inventory availability at 8300 units.

RC2010FK-072K49L (YAGEO) is functionally equivalent but lacks explicit AEC-Q200 rating in the provided specifications. This part is suitable for non-automotive applications or where automotive qualification is not required.

ERJ-12SF2491U (Panasonic Electronic Components) meets all electrical and mechanical specifications but carries a "Not For New Designs" status. This part is acceptable for legacy system maintenance or replacement applications only.

Frequently Asked Questions (FAQ)

Q: Can CRCW20102K49FKEF replace RMCF2010FT2K49 in automotive applications?

A: Yes. Both parts are rated AEC-Q200, share identical resistance (2.49 kΩ ±1%), power rating (0.75W), package (2010), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between AC2010FK-072K49L and RC2010FK-072K49L?

A: AC2010FK-072K49L includes AEC-Q200 automotive qualification and moisture-resistant features. RC2010FK-072K49L is moisture resistant but does not list AEC-Q200 rating. Both are electrically and mechanically identical for the specified parameters. Selection depends on automotive qualification requirements.

Q: Why is ERJ-12SF2491U marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development for this part number. While the part meets all electrical and mechanical specifications and remains in stock, it is recommended for replacement or legacy applications only, not for new product development.

Q: Are there package or footprint differences between these substitutes?

A: All listed parts use the 2010 (5025 Metric) package with identical footprint dimensions (0.197" L x 0.098" W / 5.00mm x 2.50mm). Seated height varies slightly (0.028" to 0.026" maximum), which is within standard PCB assembly tolerance and does not affect compatibility.

Q: Which substitute offers the best inventory availability?

A: CRCW20102K49FKEF (Vishay Dale) has the highest stock level at 8300 units, followed by ERJ-12SF2491U (Panasonic) at 9313 units. For active production status, CRCW20102K49FKEF is the optimal choice.

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