RMCF1206FT357R Equivalent & Substitute Parts

Part Overview

The RMCF1206FT357R is a 357 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This automotive-grade component meets AEC-Q200 specifications and is designed for high-reliability applications requiring stable resistance performance across extended temperature ranges. Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from multiple qualified manufacturers meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	357 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package	1206 (3216 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

Substitution eligibility for the RMCF1206FT357R is determined by strict equivalence across the following parameters: resistance value (357 Ohms), tolerance (±1%), power rating (0.25W), package type (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (RoHS3, MSL 1). All identified substitute parts meet these core electrical and mechanical requirements. Physical dimensions and height variations within the 1206 package specification do not affect functional interchangeability in standard PCB assembly processes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	RoHS3	MSL
RMCF1206FT357R	Stackpole Electronics Inc	357 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Compliant	1
CRCW1206357RFKEA	Vishay Dale	357 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Compliant	1
ERJ-8ENF3570V	Panasonic Electronic Components	357 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	Compliant	1
CR1206-FX-3570ELF	Bourns Inc.	357 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	Compliant	1
RC1206FR-07357RL	YAGEO	357 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	Compliant	1

Engineering Selection Recommendations

CRCW1206357RFKEA (Vishay Dale) is the primary substitute for RMCF1206FT357R, offering identical electrical specifications, AEC-Q200 automotive qualification, active product status, and highest inventory availability (26,910 pcs). This part provides direct functional equivalence with no design modifications required.

CR1206-FX-3570ELF (Bourns Inc.) and RC1206FR-07357RL (YAGEO) are qualified alternatives for applications where automotive AEC-Q200 certification is not mandatory. Both parts maintain identical electrical parameters, RoHS3 compliance, and active product status. CR1206-FX-3570ELF features moisture-resistant construction; RC1206FR-07357RL offers the highest inventory level (47,184 pcs) among all substitutes.

ERJ-8ENF3570V (Panasonic Electronic Components) meets all electrical and compliance requirements but carries "Not For New Designs" status, limiting its use to legacy system support or maintenance applications only.

Frequently Asked Questions (FAQ)

Q: Can CRCW1206357RFKEA replace RMCF1206FT357R in automotive applications? A: Yes. Both parts are AEC-Q200 qualified with identical resistance (357 Ω), tolerance (±1%), power rating (0.25W), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). Direct substitution is valid without circuit redesign.

Q: What is the difference between parts with and without AEC-Q200 certification? A: AEC-Q200 certification indicates automotive-grade reliability testing and qualification. CR1206-FX-3570ELF and RC1206FR-07357RL lack this certification but maintain identical electrical specifications. Selection depends on application requirements and automotive qualification mandates.

Q: Why is ERJ-8ENF3570V marked "Not For New Designs"? A: This designation indicates the manufacturer has discontinued active development for new applications. The part remains available for existing designs and maintenance but should not be selected for new product development.

Q: Are there physical dimension differences between substitute parts? A: Minor variations exist within 1206 package specification. RMCF1206FT357R and ERJ-8ENF3570V have maximum seated height of 0.028" (0.70mm); CRCW1206357RFKEA is 0.024" (0.60mm); CR1206-FX-3570ELF is 0.030" (0.75mm); RC1206FR-07357RL is 0.026" (0.65mm). All dimensions fall within standard 1206 PCB assembly tolerances and do not affect interchangeability.

Q: Which substitute offers the best inventory availability? A: RC1206FR-07357RL (YAGEO) provides the highest stock level at 47,184 pcs. CRCW1206357RFKEA (Vishay Dale) offers 26,910 pcs with AEC-Q200 qualification. Selection should balance availability with application-specific certification requirements.

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