RC2012F37R4CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F37R4CS is a 37.4 Ohms ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. Equivalent and substitute parts are identified when applications require alternative sourcing due to inventory constraints, supply chain considerations, or specific application requirements such as automotive qualification.

Key Parameters

Parameter	Value
Resistance	37.4 Ohms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution validity for the RC2012F37R4CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (37.4 Ohms), tolerance (±1%), power rating (0.125W), and temperature coefficient (±100ppm/°C) must be identical.

Mechanical Parameters: Package format (0805 / 2012 Metric), physical dimensions (0.079" L x 0.049" W), and number of terminations (2) must match.

Environmental & Compliance Parameters: Operating temperature range (-55°C ~ 155°C), RoHS3 compliance, and MSL rating (1) must be maintained.

Composition: Thick film construction is required for all substitutes.

Substitute parts are categorized as Direct Manufacturer equivalents when all parameters align identically. Similar parts are identified when additional certifications (such as AEC-Q200 automotive qualification) are present but do not conflict with base specifications. Parts with discontinued status are noted but remain electrically and mechanically valid for applications where inventory is available.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff	Op. Temp Range	Height Max	Features	RoHS3	MSL	Product Status
RC2012F37R4CS	Samsung Electro-Mechanics	37.4 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.65mm	Moisture Resistant	Yes	1	Active
ERJ-6ENF37R4V	Panasonic Electronic Components	37.4 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.70mm	Automotive AEC-Q200	Yes	1	Active
RC0805FR-0737R4L	YAGEO	37.4 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.60mm	Moisture Resistant	Yes	1	Active
RMCF0805FT37R4	Stackpole Electronics Inc	37.4 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.65mm	Automotive AEC-Q200	Yes	1	Active
CRCW080537R4FKEA	Vishay Dale	37.4 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.50mm	Automotive AEC-Q200	Yes	1	Active
MCR10ERTF37R4	Rohm Semiconductor	37.4 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.65mm	Standard	Yes	1	Discontinued at DiGi Electronics

Engineering Selection Recommendations

Direct Manufacturer Equivalents (Preferred for Drop-In Replacement):

ERJ-6ENF37R4V (Panasonic), RC0805FR-0737R4L (YAGEO), and RMCF0805FT37R4 (Stackpole Electronics Inc) are direct electrical and mechanical equivalents to RC2012F37R4CS. All maintain identical resistance, tolerance, power rating, package format, and operating temperature specifications. These parts carry Active product status and ROHS3 compliance. Selection among these three is based on inventory availability and supply chain logistics.

Similar Parts with Enhanced Certification:

CRCW080537R4FKEA (Vishay Dale) and RMCF0805FT37R4 (Stackpole Electronics Inc) include AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability without compromising base electrical specifications. CRCW080537R4FKEA features the lowest seated height (0.50mm) among all options.

Discontinued Status Consideration:

MCR10ERTF37R4 (Rohm Semiconductor) is listed as Discontinued at DiGi Electronics but remains electrically and mechanically equivalent. This part is suitable only when existing inventory is confirmed available through alternative distribution channels.

Height Variation Impact:

Seated height varies across substitutes (0.50mm to 0.70mm). For applications with strict PCB clearance constraints, CRCW080537R4FKEA (0.50mm) or RC0805FR-0737R4L (0.60mm) are preferred. Standard height tolerance applications accept all options.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0737R4L replace RC2012F37R4CS in any application?

A: Yes. RC0805FR-0737R4L is electrically and mechanically equivalent. Both are 37.4 Ohms ±1% 0.125W thick film resistors in 0805 package with identical operating temperature range (-55°C ~ 155°C) and ROHS3 compliance. The 0.60mm seated height of RC0805FR-0737R4L is within standard PCB design tolerances.

Q: What is the difference between moisture-resistant and automotive AEC-Q200 variants?

A: Moisture-resistant variants (RC2012F37R4CS, RC0805FR-0737R4L) are specified for general industrial applications with MSL 1 rating. Automotive AEC-Q200 variants (ERJ-6ENF37R4V, RMCF0805FT37R4, CRCW080537R4FKEA) meet automotive reliability standards. Both feature identical electrical parameters and operating temperature range. Selection depends on application requirements, not electrical performance.

Q: Is MCR10ERTF37R4 suitable for new designs?

A: MCR10ERTF37R4 is electrically and mechanically equivalent but carries Discontinued status at DiGi Electronics. Use only when existing inventory is confirmed available. For new designs, select from Active status parts: ERJ-6ENF37R4V, RC0805FR-0737R4L, RMCF0805FT37R4, or CRCW080537R4FKEA.

Q: Does seated height variation affect PCB assembly?

A: Seated height ranges from 0.50mm (CRCW080537R4FKEA) to 0.70mm (ERJ-6ENF37R4L). Standard PCB design accommodates this variation. Applications with height-critical constraints should specify CRCW080537R4FKEA or RC0805FR-0737R4L. Verify PCB clearance requirements before selection.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed parts—RC2012F37R4CS, ERJ-6ENF37R4V, RC0805FR-0737R4L, RMCF0805FT37R4, CRCW080537R4FKEA, and MCR10ERTF37R4—carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I use CRCW080537R4FKEA in non-automotive applications?

A: Yes. CRCW080537R4FKEA meets AEC-Q200 automotive standards but is electrically and mechanically suitable for any application requiring 37.4 Ohms ±1% 0.125W in 0805 package. Automotive qualification does not restrict use in general industrial or consumer applications.

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