RC1005F37R4CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F37R4CS is a 37.4 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format with 1/16W (0.063W) power rating. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or application-specific certifications such as automotive AEC-Q200 qualification.

Key Parameters

Parameter	Value	Unit
Resistance	37.4	Ohms
Tolerance	±1%	-
Power Rating	0.063	W (1/16W)
Package / Case	0402 (1005 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Size / Dimension	1.00 x 0.50	mm (L x W)
Height - Seated (Max)	0.40	mm
Number of Terminations	2	-
RoHS Status	ROHS3 Compliant	-
MSL Rating	1 (Unlimited)	-
Packaging	Tape & Reel (TR)	-

Substitute Part Grouping Explanation

Substitute parts for the RC1005F37R4CS are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Matching Parameters:

Resistance value: 37.4 Ohms
Tolerance: ±1%
Package: 0402 (1005 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C to 155°C
RoHS3 Compliance
MSL 1 Rating

Substitution Categories:

Direct Equivalents maintain identical electrical specifications and power rating (0.063W, 1/16W):

CR0402-FX-37R4GLF (Bourns Inc.)
RC0402FR-0737R4L (YAGEO)

Upgrade Substitute provides higher power rating (0.1W, 1/10W) while maintaining all other electrical parameters:

ERJ-2RKF37R4X (Panasonic Electronic Components)

Similar Substitutes match core electrical parameters with additional automotive AEC-Q200 certification:

AC0402FR-0737R4L (YAGEO)
CRCW040237R4FKED (Vishay Dale)
RMCF0402FT37R4 (Stackpole Electronics Inc)

All substitute parts maintain identical mechanical dimensions, termination count, and compliance certifications as the main part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance (Ohms)	Tolerance	Power Rating (W)	Package	Composition	Temp Coeff (ppm/°C)	Operating Temp (°C)	Size (mm)	Height Max (mm)	RoHS Status	MSL	AEC-Q200	Inventory (Pcs)
RC1005F37R4CS	Samsung Electro-Mechanics	37.4	±1%	0.063	0402	Thick Film	±100	-55 to 155	1.00 x 0.50	0.40	ROHS3	1	No	814
CR0402-FX-37R4GLF	Bourns Inc.	37.4	±1%	0.063	0402	Thick Film	±100	-55 to 155	1.00 x 0.50	0.40	ROHS3	1	No	30330
RC0402FR-0737R4L	YAGEO	37.4	±1%	0.063	0402	Thick Film	±100	-55 to 155	1.00 x 0.50	0.40	ROHS3	1	No	408791
ERJ-2RKF37R4X	Panasonic Electronic Components	37.4	±1%	0.1	0402	Thick Film	±100	-55 to 155	1.00 x 0.50	0.40	ROHS3	1	Yes	33641
AC0402FR-0737R4L	YAGEO	37.4	±1%	0.063	0402	Thick Film	±100	-55 to 155	1.00 x 0.50	0.37	ROHS3	1	Yes	5892
CRCW040237R4FKED	Vishay Dale	37.4	±1%	0.063	0402	Thick Film	±100	-55 to 155	1.00 x 0.50	0.40	ROHS3	1	Yes	29348
RMCF0402FT37R4	Stackpole Electronics Inc	37.4	±1%	0.063	0402	Thick Film	±100	-55 to 155	1.00 x 0.50	0.40	ROHS3	1	Yes	4611

Engineering Selection Recommendations

Direct Equivalent Selection: CR0402-FX-37R4GLF and RC0402FR-0737R4L are direct functional equivalents to RC1005F37R4CS. Both maintain identical electrical specifications, power rating, and mechanical dimensions. RC0402FR-0737R4L offers significantly higher inventory availability (408,791 pcs) compared to the main part (814 pcs), making it suitable for high-volume production requirements.

Upgrade Path: ERJ-2RKF37R4X provides higher power dissipation capability (0.1W versus 0.063W) while maintaining all other electrical parameters. This part includes AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade reliability. The higher power rating provides design margin for thermal stress conditions.

Automotive-Qualified Alternatives: AC0402FR-0737R4L, CRCW040237R4FKED, and RMCF0402FT37R4 all carry AEC-Q200 certification. These parts are appropriate for automotive and industrial applications requiring documented quality and reliability standards. All three maintain identical electrical specifications and mechanical compatibility with the main part.

Compliance Status: All substitute parts are RoHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the main part's environmental compliance profile.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-37R4GLF be used as a direct replacement for RC1005F37R4CS?

A: Yes. CR0402-FX-37R4GLF is a direct equivalent. Both parts share identical resistance (37.4 Ohms), tolerance (±1%), power rating (0.063W), package (0402), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (RoHS3, MSL 1).

Q: What is the difference between the main part and ERJ-2RKF37R4X?

A: The primary difference is power rating. ERJ-2RKF37R4X is rated for 0.1W (1/10W) compared to RC1005F37R4CS at 0.063W (1/16W). All other electrical parameters are identical. ERJ-2RKF37R4X includes AEC-Q200 automotive qualification. The higher power rating allows greater thermal dissipation capability.

Q: Are the automotive AEC-Q200 qualified parts (AC0402FR-0737R4L, CRCW040237R4FKED, RMCF0402FT37R4) suitable for non-automotive applications?

A: Yes. AEC-Q200 certification represents a higher reliability standard and is applicable to any application. These parts meet or exceed the electrical and mechanical specifications of the main part and are suitable for general industrial and consumer applications.

Q: Do all substitute parts have identical physical dimensions?

A: Dimensions are functionally equivalent. All parts use 0402 (1005 Metric) package with 1.00mm length and 0.50mm width. Maximum seated height is 0.40mm for most parts, with AC0402FR-0737R4L at 0.37mm maximum. This minor height variation (0.03mm) is within standard PCB assembly tolerances and does not affect mechanical compatibility.

Q: Which substitute part has the highest inventory availability?

A: RC0402FR-0737R4L (YAGEO) has the highest inventory at 408,791 pcs, followed by ERJ-2RKF37R4X (Panasonic) at 33,641 pcs and CRCW040237R4FKED (Vishay Dale) at 29,348 pcs.

Q: Can I use these substitute parts interchangeably in the same circuit design?

A: Yes, within the specified electrical parameters. All substitute parts maintain the same resistance value, tolerance, temperature coefficient, and operating temperature range. The direct equivalents (CR0402-FX-37R4GLF and RC0402FR-0737R4L) are fully interchangeable. The upgrade substitute (ERJ-2RKF37R4X) with higher power rating is also interchangeable and provides additional thermal margin. AEC-Q200 qualified parts are interchangeable for applications not requiring automotive certification.

Q: What is MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. This applies to all listed parts and the main component.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message