RCS2012F39R2CS Equivalent & Substitute Parts

Part Overview

The RCS2012F39R2CS is a 39.2 Ohm ±1% 1/8W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is designed for general-purpose applications requiring anti-sulfur and moisture-resistant characteristics. The part is currently in active production status with 979 units available in stock. Equivalent and substitute parts are identified when applications require alternative sourcing, higher inventory availability, or specific certifications such as automotive AEC-Q200 qualification.

Key Parameters

Parameter	Value
Resistance	39.2 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F39R2CS is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 39.2 Ohms
Tolerance: ±1%
Package / Case: 0805 (2012 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

Power Rating: Substitute parts may have equal or higher power ratings (0.125W or greater)
Physical Height: Seated height may vary within component tolerance limits
Certifications: Substitute parts may include additional certifications (AEC-Q200) beyond the base specification

All identified substitute parts meet or exceed the mandatory parameters of the RCS2012F39R2CS.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Package	Temp Coeff	Operating Temp	AEC-Q200	RoHS3	Inventory
RCS2012F39R2CS	Samsung Electro-Mechanics	39.2 Ω	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	No	Yes	979
CRCW080539R2FKEA	Vishay Dale	39.2 Ω	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	25365
CRCW080539R2FKEAHP	Vishay Dale	39.2 Ω	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	5697
ERJ-6ENF39R2V	Panasonic Electronic Components	39.2 Ω	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	58477
RC0805FR-0739R2L	YAGEO	39.2 Ω	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	No	Yes	42151
RMCF0805FT39R2	Stackpole Electronics Inc	39.2 Ω	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	5345

Engineering Selection Recommendations

All identified substitute parts are active production components with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), matching the base specification of the RCS2012F39R2CS.

For General-Purpose Applications: The CRCW080539R2FKEA (Vishay Dale) and RC0805FR-0739R2L (YAGEO) provide direct electrical and mechanical equivalence with the highest inventory availability (25365 and 42151 units respectively). Both maintain identical power ratings and temperature characteristics.

For Automotive Applications: The ERJ-6ENF39R2V (Panasonic), CRCW080539R2FKEA (Vishay Dale), and RMCF0805FT39R2 (Stackpole) include AEC-Q200 automotive qualification. The ERJ-6ENF39R2V offers the largest inventory (58477 units) among automotive-qualified options.

For Higher Power Dissipation Requirements: The CRCW080539R2FKEAHP (Vishay Dale) provides a 0.5W power rating while maintaining all other electrical parameters, enabling use in applications requiring greater thermal headroom within the 0805 package envelope.

Frequently Asked Questions (FAQ)

Q: Can CRCW080539R2FKEAHP (0.5W) be used as a direct replacement for RCS2012F39R2CS (0.125W)?

A: Yes. The CRCW080539R2FKEAHP is electrically and mechanically compatible. The higher power rating (0.5W versus 0.125W) does not prevent substitution; it provides additional thermal capability. Physical dimensions remain within 0805 package specification. This substitution is valid for any application where the original 0.125W rating was sufficient.

Q: What is the difference between AEC-Q200 qualified and non-qualified versions?

A: AEC-Q200 is an automotive industry qualification standard. Parts bearing this certification (ERJ-6ENF39R2V, CRCW080539R2FKEA, CRCW080539R2FKEAHP, RMCF0805FT39R2) have undergone additional reliability testing. Non-qualified parts (RCS2012F39R2CS, RC0805FR-0739R2L) meet the same electrical specifications but lack this automotive validation. Selection depends on application requirements.

Q: Are all substitute parts identical in physical dimensions?

A: All parts conform to the 0805 (2012 Metric) package standard with length 2.00mm and width 1.25mm. Seated height varies slightly between manufacturers (0.50mm to 0.70mm maximum), but these variations remain within standard PCB assembly tolerances and do not affect interchangeability.

Q: Which substitute offers the best inventory availability?

A: The ERJ-6ENF39R2V (Panasonic) provides the highest inventory at 58477 units, followed by RC0805FR-0739R2L (YAGEO) at 42151 units and CRCW080539R2FKEA (Vishay Dale) at 25365 units.

Q: Can non-AEC-Q200 parts be used in automotive applications?

A: This determination depends on specific application requirements and customer specifications. AEC-Q200 certification indicates automotive-grade reliability testing. Use of non-qualified parts in automotive applications requires engineering evaluation against application-specific requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message