RMCF0201FT243R Equivalent & Substitute Parts

Part Overview

The RMCF0201FT243R is a 243 Ohms ±1% thick film chip resistor manufactured by Stackpole Electronics Inc in the 0201 (0603 Metric) package format. This component is rated for 0.05W (1/20W) power dissipation with an operating temperature range of -55°C to 155°C. The part is currently in active product status with AEC-Q200 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are necessary to address supply chain flexibility, inventory optimization, and design requirements across different manufacturing sources while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	243 Ohms
Tolerance	±1%
Power Rating	0.05W (1/20W)
Package / Case	0201 (0603 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RMCF0201FT243R is determined by strict equivalence across the following critical parameters: resistance value (243 Ohms), tolerance (±1%), power rating (0.05W), package format (0201), composition (thick film), temperature coefficient (±200ppm/°C), and physical dimensions (0.024" L x 0.012" W). All substitute parts listed maintain these core electrical and mechanical specifications. Operating temperature range variations and product status differences are noted but do not disqualify substitution where the minimum operating range meets or exceeds application requirements. RoHS3 compliance and MSL 1 rating are consistent across all listed alternatives.

Parameter Comparison

Parameter	RMCF0201FT243R (Stackpole)	ERJ-1GEF2430C (Panasonic)	AC0201FR-07243RL (YAGEO)	CRCW0201243RFNED (Vishay Dale)	ERJ-1GNF2430C (Panasonic)	RC0201FR-07243RL (YAGEO)
Resistance	243 Ohms	243 Ohms	243 Ohms	243 Ohms	243 Ohms	243 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.05W	0.05W	0.05W	0.05W	0.05W	0.05W
Package / Case	0201	0201	0201	0201	0201	0201
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±200ppm/°C	±200ppm/°C	±200ppm/°C	±200ppm/°C	±200ppm/°C	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C	-55°C ~ 125°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 125°C	-55°C ~ 125°C
Size / Dimension	0.024" L x 0.012" W (0.60mm x 0.30mm)	0.024" L x 0.012" W (0.60mm x 0.30mm)	0.024" L x 0.012" W (0.60mm x 0.30mm)	0.024" L x 0.012" W (0.60mm x 0.30mm)	0.024" L x 0.012" W (0.60mm x 0.30mm)	0.024" L x 0.012" W (0.60mm x 0.30mm)
Height - Seated (Max)	0.011" (0.28mm)	0.010" (0.26mm)	0.010" (0.26mm)	0.010" (0.26mm)	0.010" (0.26mm)	0.010" (0.26mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Obsolete	Active	Active	Active	Active
AEC-Q200 Rating	Yes	Not specified	Yes	Not specified	Not specified	Not specified

Engineering Selection Recommendations

All listed substitute parts maintain electrical equivalence to the RMCF0201FT243R across resistance, tolerance, power rating, and thermal characteristics. Selection among active alternatives should prioritize parts with matching operating temperature ranges for applications requiring the full -55°C to 155°C specification. The AC0201FR-07243RL and CRCW0201243RFNED both maintain the extended upper temperature limit of 155°C and are recommended for automotive and high-temperature applications. The ERJ-1GNF2430C and RC0201FR-07243RL are suitable for applications with maximum operating temperatures not exceeding 125°C. The ERJ-1GEF2430C carries obsolete product status and should be avoided for new designs unless legacy compatibility is required. All parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1GEF2430C be used as a direct replacement for RMCF0201FT243R? A: ERJ-1GEF2430C is electrically equivalent but carries obsolete product status. While functionally compatible, it is not recommended for new designs due to supply chain discontinuation risk.

Q: What is the difference between AC0201FR-07243RL and RC0201FR-07243RL? A: Both are YAGEO 243 Ohm 0201 resistors with identical electrical specifications. AC0201FR-07243RL includes automotive AEC-Q200 qualification and moisture-resistant features. RC0201FR-07243RL is rated for moisture resistance only. Selection depends on automotive qualification requirements.

Q: Are there operating temperature limitations when substituting with ERJ-1GNF2430C? A: ERJ-1GNF2430C operates from -55°C to 125°C, compared to the RMCF0201FT243R range of -55°C to 155°C. This part is suitable only for applications where the maximum operating temperature does not exceed 125°C.

Q: Do all substitute parts have identical physical dimensions? A: All parts share the same 0201 package footprint (0.024" L x 0.012" W). Maximum seated height varies slightly: RMCF0201FT243R is 0.011" (0.28mm), while all substitutes are 0.010" (0.26mm). This minor difference does not affect PCB assembly compatibility.

Q: Which substitute offers the best long-term availability? A: CRCW0201243RFNED (Vishay Dale) and ERJ-1GNF2430C (Panasonic) both carry active product status with high inventory levels (30,461 and 39,366 units respectively) and are suitable for long-term supply chain planning.

Q: Is AEC-Q200 qualification required for all applications? A: AEC-Q200 qualification is specific to automotive applications. AC0201FR-07243RL includes this rating. For non-automotive applications, all other active alternatives are suitable regardless of AEC-Q200 status.

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