RCS2012J273CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012J273CS is a 27 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) package format. This component is classified as Active product status with anti-sulfur and moisture-resistant construction. The part is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating, temperature coefficient, operating temperature range) and mechanical compatibility (package format, physical dimensions, termination count). Substitute parts may vary in tolerance grade, power rating, or feature set while maintaining functional interchangeability within specified parameters.

Key Parameters

Parameter	Value
Resistance	27 kOhms
Tolerance	±5%
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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012J273CS are grouped based on the following substitution criteria:

Primary Matching Parameters:

Resistance value: 27 kOhms (exact match required)
Package format: 0805 (2012 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C ~ 155°C (exact match required)
Number of terminations: 2 (exact match required)
RoHS compliance: ROHS3 Compliant (exact match required)
MSL rating: 1 (Unlimited) (exact match required)

Variable Parameters (Substitution Allowed):

Tolerance: ±5% (main part) to ±1% (substitute parts) — tighter tolerance is acceptable
Power rating: 0.125W (main part) to 0.5W (substitute parts) — higher power rating is acceptable
Features: Anti-sulfur, moisture-resistant (main part) to automotive AEC-Q200 certification (substitute parts)
Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®

All substitute parts listed maintain full electrical and mechanical compatibility with the RCS2012J273CS within the 0805 package footprint and specified environmental operating conditions.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Temp Coeff	Operating Temp	Package	Height Max	Features	RoHS	MSL
RCS2012J273CS	Samsung Electro-Mechanics	27 kOhms	±5%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.66mm	Anti-Sulfur, Moisture Resistant	ROHS3	1
AC0805FR-0727KL	YAGEO	27 kOhms	±1%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.60mm	Automotive AEC-Q200, Moisture Resistant	ROHS3	1
AC0805JR-0727KL	YAGEO	27 kOhms	±5%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.60mm	Automotive AEC-Q200, Moisture Resistant	ROHS3	1
CRCW080527K0FKEA	Vishay Dale	27 kOhms	±1%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.50mm	Automotive AEC-Q200	ROHS3	1
CRCW080527K0FKEAHP	Vishay Dale	27 kOhms	±1%	0.5W	±100ppm/°C	-55°C ~ 155°C	0805	0.50mm	Automotive AEC-Q200, Pulse Withstanding	ROHS3	1
ERJ-6ENF2702V	Panasonic Electronic Components	27 kOhms	±1%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.70mm	Automotive AEC-Q200	ROHS3	1
ERJ-UP6F2702V	Panasonic Electronic Components	27 kOhms	±1%	0.5W	±100ppm/°C	-55°C ~ 155°C	0805	0.70mm	Anti-Sulfur, Automotive AEC-Q200, Pulse Withstanding	ROHS3	1
RC0805FR-0727KL	YAGEO	27 kOhms	±1%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.60mm	Moisture Resistant	ROHS3	1
RC0805JR-0727KL	YAGEO	27 kOhms	±5%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.60mm	Moisture Resistant	ROHS3	1
RMCF0805FT27K0	Stackpole Electronics Inc	27 kOhms	±1%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805	0.65mm	Automotive AEC-Q200	ROHS3	1

Engineering Selection Recommendations

Direct Tolerance Match (±5%):

AC0805JR-0727KL (YAGEO) — Identical tolerance specification with automotive AEC-Q200 certification and moisture resistance
RC0805JR-0727KL (YAGEO) — Identical tolerance specification with moisture resistance in Cut Tape packaging

Tighter Tolerance Substitutes (±1%):

AC0805FR-0727KL (YAGEO) — ±1% tolerance with automotive AEC-Q200 certification
CRCW080527K0FKEA (Vishay Dale) — ±1% tolerance with automotive AEC-Q200 certification
ERJ-6ENF2702V (Panasonic) — ±1% tolerance with automotive AEC-Q200 certification
RC0805FR-0727KL (YAGEO) — ±1% tolerance with moisture resistance
RMCF0805FT27K0 (Stackpole Electronics) — ±1% tolerance with automotive AEC-Q200 certification

Higher Power Rating Substitutes (0.5W):

CRCW080527K0FKEAHP (Vishay Dale) — 0.5W rating with ±1% tolerance, automotive AEC-Q200, and pulse withstanding capability
ERJ-UP6F2702V (Panasonic) — 0.5W rating with ±1% tolerance, anti-sulfur, automotive AEC-Q200, and pulse withstanding capability

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and -55°C ~ 155°C operating temperature range. Selection should be based on application requirements for tolerance grade, power dissipation margin, and automotive qualification needs.

Frequently Asked Questions (FAQ)

Q: Can AC0805JR-0727KL replace RCS2012J273CS directly?

A: Yes. AC0805JR-0727KL matches all critical electrical parameters (27 kOhms, ±5% tolerance, 0.125W, ±100ppm/°C, -55°C ~ 155°C) and mechanical specifications (0805 package, 2 terminations). Both are ROHS3 compliant with MSL Level 1 rating. The substitute adds automotive AEC-Q200 certification.

Q: What is the difference between ±5% and ±1% tolerance substitutes?

A: The RCS2012J273CS has ±5% tolerance, meaning the actual resistance value can vary within ±5% of the nominal 27 kOhms specification. Substitute parts with ±1% tolerance provide tighter resistance accuracy. In applications where circuit performance is sensitive to resistance variation, ±1% tolerance substitutes offer improved precision without affecting mechanical or thermal compatibility.

Q: Can I use CRCW080527K0FKEAHP (0.5W) instead of RCS2012J273CS (0.125W)?

A: Yes, from an electrical and mechanical standpoint. The 0.5W part has higher power dissipation capability, which is acceptable for applications designed for 0.125W. However, the higher power rating does not change the electrical behavior at normal operating conditions. Use this substitute only if additional power margin is required for the application.

Q: Are all substitute parts available in the same packaging format?

A: No. The RCS2012J273CS is supplied in Tape & Reel (TR) format. Substitute parts are available in both Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. Verify packaging requirements with your procurement process before selection.

Q: What does automotive AEC-Q200 certification mean?

A: AEC-Q200 is an automotive qualification standard for passive components. Several substitute parts carry this certification (YAGEO AC series, Vishay Dale CRCW series, Panasonic ERJ series, Stackpole RMCF series), indicating they meet automotive industry reliability and performance requirements. The RCS2012J273CS does not carry this certification but is functionally compatible with AEC-Q200 qualified substitutes.

Q: Do all parts have the same physical height?

A: No. Physical height varies slightly: RCS2012J273CS (0.66mm), AC0805FR-0727KL (0.60mm), CRCW080527K0FKEA (0.50mm), ERJ-6ENF2702V (0.70mm), RMCF0805FT27K0 (0.65mm). All heights are within acceptable tolerance for 0805 package footprint. Verify PCB assembly clearance if height is a constraint.

Q: Which substitute offers the best inventory availability?

A: Based on provided inventory data, AC0805FR-0727KL (YAGEO) has 162,017 pieces in stock, followed by CRCW080527K0FKEAHP (Vishay Dale) with 66,619 pieces. Inventory levels should be confirmed with your supplier for current availability.

Q: Is moisture sensitivity the same across all parts?

A: Yes. All parts, including the main part RCS2012J273CS and all substitutes, carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

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