RMCF2010FT91R0 Equivalent & Substitute Parts

Part Overview

The RMCF2010FT91R0 is a 91 Ohm ±1% 0.75W thick film chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This automotive-grade component meets AEC-Q200 qualification and is designed for high-reliability applications requiring stable resistance performance across extended temperature ranges. The part is currently active in production with 849 units in stock. Substitute parts are identified to provide design flexibility, supply chain alternatives, and equivalent electrical performance for applications where the primary part may be unavailable or where alternative manufacturers' components meet identical specifications.

Key Parameters

Parameter	Value
Resistance	91 Ohms
Tolerance	±1%
Power Rating	0.75W (3/4W)
Package	2010 (5025 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RMCF2010FT91R0 are qualified based on strict equivalence of the following electrical and mechanical parameters:

Resistance value: 91 Ohms
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
Termination count: 2
RoHS compliance: ROHS3
Moisture sensitivity: MSL 1

The identified substitutes AC2010FK-0791RL and RC2010FK-0791RL from YAGEO meet all critical electrical specifications and package requirements. Both parts maintain identical resistance, tolerance, power rating, and thermal characteristics. Physical dimensions remain within acceptable tolerances for PCB layout compatibility.

Parameter Comparison

Parameter	RMCF2010FT91R0 (Stackpole)	AC2010FK-0791RL (YAGEO)	RC2010FK-0791RL (YAGEO)
Resistance	91 Ohms	91 Ohms	91 Ohms
Tolerance	±1%	±1%	±1%
Power Rating	0.75W	0.75W	0.75W
Package	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)
Composition	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Length x Width	0.197" x 0.098" (5.00mm x 2.50mm)	0.197" x 0.098" (5.00mm x 2.50mm)	0.197" x 0.098" (5.00mm x 2.50mm)
Height - Seated (Max)	0.028" (0.70mm)	0.026" (0.65mm)	0.026" (0.65mm)
Terminations	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity	MSL 1 (Unlimited)	MSL 1 (Unlimited)	MSL 1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts maintain active production status and full RoHS3 compliance, ensuring long-term availability and regulatory conformance. The RMCF2010FT91R0 from Stackpole Electronics and both YAGEO alternatives (AC2010FK-0791RL and RC2010FK-0791RL) are functionally equivalent for applications requiring 91 Ohm ±1% resistors in automotive-grade or general industrial environments.

AC2010FK-0791RL includes explicit AEC-Q200 automotive qualification and moisture-resistant features, making it the preferred substitute for automotive applications. RC2010FK-0791RL provides moisture-resistant characteristics without explicit automotive rating notation but maintains identical electrical specifications and operating parameters.

Height variation between the primary part (0.70mm maximum) and YAGEO substitutes (0.65mm maximum) is within standard PCB assembly tolerances and does not affect electrical performance or mechanical fit in standard 2010 package footprints.

Frequently Asked Questions (FAQ)

Q: Can AC2010FK-0791RL and RC2010FK-0791RL be used interchangeably with RMCF2010FT91R0?

A: Yes. Both YAGEO parts meet identical electrical specifications (91 Ohms ±1%, 0.75W, ±100ppm/°C, -55°C to 155°C) and are packaged in the same 2010 (5025 Metric) footprint. Physical dimensions are compatible with standard PCB layouts.

Q: What is the difference between AC2010FK-0791RL and RC2010FK-0791RL?

A: AC2010FK-0791RL carries explicit AEC-Q200 automotive qualification and is designated as moisture-resistant. RC2010FK-0791RL is designated as moisture-resistant but does not include explicit automotive rating notation. Both parts maintain identical electrical and thermal characteristics.

Q: Are there any height differences that affect PCB assembly?

A: The RMCF2010FT91R0 has a maximum seated height of 0.70mm, while both YAGEO substitutes have a maximum seated height of 0.65mm. This 0.05mm difference is within standard PCB assembly tolerances and does not affect component placement or solder joint integrity.

Q: Do all three parts comply with RoHS regulations?

A: Yes. RMCF2010FT91R0, AC2010FK-0791RL, and RC2010FK-0791RL are all ROHS3 compliant and REACH unaffected.

Q: Which part should be selected for automotive applications?

A: AC2010FK-0791RL is recommended for automotive applications due to explicit AEC-Q200 qualification. RMCF2010FT91R0 also carries AEC-Q200 rating. RC2010FK-0791RL is suitable for general industrial applications.

Q: Are moisture-resistant features critical for my application?

A: Moisture resistance is beneficial in high-humidity or harsh environments. AC2010FK-0791RL and RC2010FK-0791RL both include moisture-resistant characteristics. All three parts maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating minimal moisture absorption risk during storage and handling.

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