RMCS1206FT7K50 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT7K50 is a 7.5 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is currently active in production. Substitute parts are necessary when the primary part experiences supply constraints, when design requirements mandate specific certifications such as AEC-Q200 automotive qualification, or when enhanced features such as pulse withstanding capability are required for application reliability.

Key Parameters

Parameter	Value
Resistance	7.5 kOhms
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 to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT7K50 is determined by strict equivalence across the following parameters: resistance value (7.5 kOhms), 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 termination count (2). All listed substitute parts meet these core electrical and mechanical requirements. Secondary differentiators include feature enhancements (automotive AEC-Q200 certification, moisture resistance, pulse withstanding capability), RoHS compliance status, and product lifecycle status. Parts are grouped by manufacturer and feature set to facilitate selection based on application-specific requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Composition	Temp Coeff	Operating Temp	Features	RoHS Status	Product Status
RMCS1206FT7K50	Stackpole Electronics Inc	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Anti-Sulfur	ROHS3 Compliant	Active
RMCF1206FT7K50	Stackpole Electronics Inc	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	ROHS3 Compliant	Active
AC1206FR-077K5L	YAGEO	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, Moisture Resistant	ROHS3 Compliant	Active
CR1206-FX-7501ELF	Bourns Inc.	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	ROHS3 Compliant	Active
CRCW12067K50FKEA	Vishay Dale	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	ROHS3 Compliant	Active
CRCW12067K50FKEAHP	Vishay Dale	7.5 kOhms	±1%	0.75W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, Pulse Withstanding	ROHS3 Compliant	Active
CRCW12067K50FKTA	Vishay Dale	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	RoHS non-compliant	Active
ERJ-8ENF7501V	Panasonic Electronic Components	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	ROHS3 Compliant	Not For New Designs
RC1206FR-077K5L	YAGEO	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	ROHS3 Compliant	Active
RC3216F752CS	Samsung Electro-Mechanics	7.5 kOhms	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	ROHS3 Compliant	Active

Engineering Selection Recommendations

For applications requiring ROHS3 compliance and active product status, RMCF1206FT7K50, AC1206FR-077K5L, CR1206-FX-7501ELF, CRCW12067K50FKEA, RC1206FR-077K5L, and RC3216F752CS are suitable direct replacements. RMCF1206FT7K50 from Stackpole Electronics Inc provides automotive AEC-Q200 certification while maintaining the same manufacturer lineage as the primary part. CRCW12067K50FKEA and CRCW12067K50FKTA from Vishay Dale offer automotive AEC-Q200 qualification; however, CRCW12067K50FKTA is RoHS non-compliant and should be avoided in applications requiring RoHS certification. CRCW12067K50FKEAHP provides enhanced pulse withstanding capability at 0.75W power rating for applications requiring higher transient stress tolerance. ERJ-8ENF7501V from Panasonic carries "Not For New Designs" status and should be used only for legacy system maintenance or repair. AC1206FR-077K5L and RC1206FR-077K5L from YAGEO, along with CR1206-FX-7501ELF from Bourns and RC3216F752CS from Samsung, provide moisture-resistant thick film construction suitable for humid or corrosive environments.

Frequently Asked Questions (FAQ)

Q: Can CRCW12067K50FKEAHP be used as a direct replacement for RMCS1206FT7K50?

A: CRCW12067K50FKEAHP is electrically compatible in terms of resistance, tolerance, and temperature coefficient. However, it features a 0.75W power rating compared to the 0.25W rating of RMCS1206FT7K50. This higher power rating does not prevent substitution but indicates enhanced pulse withstanding capability. Physical dimensions differ slightly (0.122" L x 0.063" W versus 0.126" L x 0.063" W), which may affect PCB layout. Substitution is valid when the application can accommodate the dimensional variance and does not require the specific anti-sulfur feature of the original part.

Q: What is the difference between RMCS1206FT7K50 and RMCF1206FT7K50?

A: Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications: 7.5 kOhms ±1%, 0.25W, 1206 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. RMCS1206FT7K50 features anti-sulfur construction, while RMCF1206FT7K50 carries automotive AEC-Q200 certification. RMCF1206FT7K50 is preferred for automotive applications requiring formal qualification compliance.

Q: Why should ERJ-8ENF7501V be avoided for new designs?

A: ERJ-8ENF7501V carries product status "Not For New Designs," indicating that the manufacturer (Panasonic Electronic Components) has discontinued active development and support for this part. While electrically equivalent and currently in stock, it should be reserved for legacy system maintenance only. New designs should select from parts with "Active" product status.

Q: Are all substitute parts ROHS3 compliant?

A: No. CRCW12067K50FKTA is marked as RoHS non-compliant and should not be used in applications requiring RoHS certification. All other listed substitutes are ROHS3 compliant.

Q: What is the significance of moisture-resistant features in AC1206FR-077K5L, CR1206-FX-7501ELF, RC1206FR-077K5L, and RC3216F752CS?

A: Moisture-resistant thick film construction provides enhanced performance in high-humidity, salt-spray, or corrosive environments. These parts are suitable for applications exposed to condensation, marine environments, or industrial settings with elevated moisture levels. The original RMCS1206FT7K50 with anti-sulfur feature addresses sulfur contamination specifically, while moisture-resistant variants address broader environmental degradation mechanisms.

Q: Can CRCW12067K50FKTA be used despite RoHS non-compliance?

A: CRCW12067K50FKTA is electrically and mechanically equivalent to RMCS1206FT7K50 and carries automotive AEC-Q200 certification. However, RoHS non-compliance restricts its use to applications and markets where RoHS certification is not mandated. Designs targeting EU markets, automotive OEM supply chains, or regulated industries must avoid this part.

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