RMCS1206FT150R Equivalent & Substitute Parts

Part Overview

The RMCS1206FT150R is a 150 Ohm ±1% 0.25W (1/4W) chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur thick film resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). The part is currently active in production with 947 pieces in stock. Equivalent and substitute parts are necessary to ensure design flexibility, manage supply chain continuity, and accommodate specific application requirements such as automotive qualification or enhanced pulse withstanding capabilities.

Key Parameters

Parameter	Value
Resistance	150 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT150R is determined by the following critical parameters:

Electrical Specifications: Resistance value (150 Ohms), tolerance (±1%), and power rating (0.25W minimum)
Package Compatibility: 1206 (3216 Metric) form factor with identical termination count (2)
Environmental Performance: Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C)
Regulatory Compliance: ROHS3 compliance and MSL 1 rating

All substitute parts listed maintain these core parameters. Variations in features (automotive AEC-Q200 qualification, pulse withstanding capability, moisture resistance) and dimensions (within standard 1206 tolerances) do not affect functional substitutability for the base electrical specification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	RoHS Status	MSL	Features	Product Status
RMCS1206FT150R	Stackpole Electronics Inc	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Anti-Sulfur	Active
RMCF1206FT150R	Stackpole Electronics Inc	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Automotive AEC-Q200	Active
AC1206FR-07150RL	YAGEO	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Automotive AEC-Q200, Moisture Resistant	Active
CR1206-FX-1500ELF	Bourns Inc.	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Moisture Resistant	Active
CRCW1206150RFKEA	Vishay Dale	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Automotive AEC-Q200	Active
CRCW1206150RFKEAHP	Vishay Dale	150 Ohms	±1%	0.75W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Automotive AEC-Q200, Pulse Withstanding	Active
CRCW1206150RFKTA	Vishay Dale	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	RoHS Non-Compliant	1	Automotive AEC-Q200	Active
ERJ-8ENF1500V	Panasonic Electronic Components	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Automotive AEC-Q200	Not For New Designs
RC1206FR-07150RL	YAGEO	150 Ohms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	ROHS3	1	Moisture Resistant	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, ROHS3 Compliant)

RMCF1206FT150R, AC1206FR-07150RL, CR1206-FX-1500ELF, CRCW1206150RFKEA, and RC1206FR-07150RL are direct functional equivalents with active product status and full ROHS3 compliance. These parts are suitable for new designs and production applications requiring standard 0.25W performance.

Enhanced Performance Option

CRCW1206150RFKEAHP provides 0.75W power rating with pulse withstanding capability while maintaining the 1206 package and automotive AEC-Q200 qualification. This part is appropriate for applications requiring higher transient energy absorption.

Automotive-Qualified Alternatives

RMCF1206FT150R, AC1206FR-07150RL, CRCW1206150RFKEA, CRCW1206150RFKTA, and ERJ-8ENF1500V carry AEC-Q200 automotive qualification. CRCW1206150RFKTA is RoHS non-compliant and REACH affected; ERJ-8ENF1500V is marked "Not For New Designs."

Moisture-Resistant Variants

AC1206FR-07150RL, CR1206-FX-1500ELF, and RC1206FR-07150RL include moisture resistance features for applications in high-humidity environments.

Frequently Asked Questions (FAQ)

Q: Can CRCW1206150RFKEAHP (0.75W) replace RMCS1206FT150R (0.25W)?

A: Yes. The 0.75W part is electrically and mechanically compatible. Higher power rating provides additional design margin and does not affect circuit operation at 0.25W specification levels.

Q: Are all substitute parts in the same 1206 package?

A: Yes. All listed substitutes use the 1206 (3216 Metric) package with identical two-termination configuration. Dimensional variations within standard 1206 tolerances do not affect PCB footprint compatibility.

Q: Which substitute should be used for new automotive designs?

A: RMCF1206FT150R, AC1206FR-07150RL, CRCW1206150RFKEA, or CRCW1206150RFKEAHP are recommended. All carry AEC-Q200 qualification, active product status, and ROHS3 compliance.

Q: Why is ERJ-8ENF1500V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development for this part number. Existing inventory may be available, but new designs should select from active product status alternatives.

Q: Is CRCW1206150RFKTA suitable for new designs?

A: CRCW1206150RFKTA is RoHS non-compliant and REACH affected. It is not recommended for new designs requiring regulatory compliance. Select ROHS3-compliant alternatives instead.

Q: Do all substitutes maintain ±1% tolerance and ±100ppm/°C temperature coefficient?

A: Yes. All listed substitutes maintain identical electrical specifications: 150 Ohms ±1%, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range.

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