RCS2012F3161CS Equivalent & Substitute Parts

Part Overview

The RCS2012F3161CS is a 3.16 kOhms ±1% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This thick film resistor features anti-sulfur and moisture-resistant properties with an operating temperature range of -55°C to 155°C. The part is Active in product status and ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support design flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	3.16 kOhms
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)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F3161CS are qualified based on the following criteria:

Primary Substitution Criteria (Mandatory Match):

Resistance value: 3.16 kOhms
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)
Number of Terminations: 2

Secondary Consideration (Application-Dependent):

Power Rating: Substitutes with equal or higher power rating (0.125W or greater) are acceptable
Height - Seated: Variations within mechanical tolerance are acceptable for PCB assembly compatibility

All identified substitute parts meet the primary criteria. Substitutes with higher power ratings (0.5W / 1/2W) are suitable for applications where additional thermal margin is required.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Height - Seated (Max)	RoHS Status	MSL	Product Status
RCS2012F3161CS	Samsung Electro-Mechanics	3.16 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.026" (0.66mm)	ROHS3	1	Active
CRCW08053K16FKEA	Vishay Dale	3.16 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	ROHS3	1	Active
CRCW08053K16FKEAHP	Vishay Dale	3.16 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	ROHS3	1	Active
ERJ-6ENF3161V	Panasonic Electronic Components	3.16 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.028" (0.70mm)	ROHS3	1	Active
RC0805FR-073K16L	YAGEO	3.16 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.024" (0.60mm)	ROHS3	1	Active
RCS08053K16FKEA	Vishay Dale	3.16 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	ROHS3	1	Active
RMCF0805FT3K16	Stackpole Electronics Inc	3.16 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.026" (0.65mm)	ROHS3	1	Active

Engineering Selection Recommendations

All substitute parts listed are Active in product status and ROHS3 compliant, meeting regulatory requirements for current applications. Selection among equivalent parts should be based on the following factors:

For Direct Replacement (0.125W Rating): CRCW08053K16FKEA, ERJ-6ENF3161V, RC0805FR-073K16L, and RMCF0805FT3K16 are direct electrical equivalents to the RCS2012F3161CS. These parts maintain identical power ratings and thermal characteristics. CRCW08053K16FKEA and RMCF0805FT3K16 offer the lowest seated heights, which may be advantageous for high-density PCB layouts.

For Enhanced Thermal Performance (0.5W Rating): CRCW08053K16FKEAHP and RCS08053K16FKEA provide 0.5W power ratings while maintaining the same 0805 package footprint. These parts are suitable for applications requiring additional thermal margin or pulse withstanding capability.

Automotive Applications: CRCW08053K16FKEA, CRCW08053K16FKEAHP, ERJ-6ENF3161V, RCS08053K16FKEA, and RMCF0805FT3K16 carry AEC-Q200 automotive qualification ratings, appropriate for automotive and harsh environment applications.

Supply Chain Considerations: Inventory availability varies across manufacturers. RMCF0805FT3K16 (Stackpole) and ERJ-6ENF3161V (Panasonic) show higher stock levels, supporting extended production runs.

Frequently Asked Questions (FAQ)

Q: Can I use a 0.5W rated resistor in place of the 0.125W RCS2012F3161CS?

A: Yes. A higher power rating resistor with identical resistance, tolerance, package, and temperature specifications is a valid substitute. The 0.5W parts (CRCW08053K16FKEAHP and RCS08053K16FKEA) provide additional thermal capacity and are mechanically compatible with 0805 PCB footprints designed for the original part.

Q: Are there differences in height that affect PCB assembly?

A: Seated heights range from 0.020" (0.50mm) to 0.028" (0.70mm). These variations are within standard PCB assembly tolerances for 0805 components. Verify with your assembly partner if height-critical applications exist (such as under-component routing or confined spaces).

Q: Which substitute offers the best availability?

A: RMCF0805FT3K16 (Stackpole Electronics) shows the highest inventory level at 52,345 pieces. ERJ-6ENF3161V (Panasonic) is also well-stocked at 36,409 pieces. Both are suitable for high-volume production requirements.

Q: Do all substitutes meet RoHS and environmental compliance?

A: Yes. All listed substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level is 1 (Unlimited) across all parts, indicating no special moisture handling requirements.

Q: What is the difference between standard and AEC-Q200 rated parts?

A: AEC-Q200 certification indicates automotive-grade qualification with enhanced reliability testing. CRCW08053K16FKEA, CRCW08053K16FKEAHP, ERJ-6ENF3161V, RCS08053K16FKEA, and RMCF0805FT3K16 carry this rating. Use AEC-Q200 parts for automotive, industrial, or mission-critical applications requiring higher reliability assurance.

Q: Can I mix different manufacturers in the same design?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. Mixed sourcing is acceptable for production continuity. Ensure PCB layout accommodates the maximum seated height (0.028" for ERJ-6ENF3161V) if multiple manufacturers are used.

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