RCS2012F1274CS Equivalent & Substitute Parts

Part Overview

The RCS2012F1274CS is a 1.27 MOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status and features anti-sulfur and moisture-resistant construction. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Substiute Parts

RCS2012F1274CS

Samsung Electro-MechanicsIn Stock: 821RCS2012F1274CS Datasheet

Current PartRFQ

CRCW08051M27FKEA

Vishay DaleIn Stock: 3852CRCW08051M27FKEA Datasheet

SimilarRFQ

ERJ-6ENF1274V

Panasonic Electronic ComponentsIn Stock: 13834ERJ-6ENF1274V Datasheet

SimilarRFQ

RC0805FR-071M27L

YAGEOIn Stock: 155377RC0805FR-071M27L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F1274CS are qualified based on the following criteria:

Electrical Parameters: Resistance value of 1.27 MOhms, tolerance of ±1%, and power rating of 0.125W (1/8W) must be identical.

Mechanical Parameters: Package designation must be 0805 (2012 Metric) with two terminations. Physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) must be equivalent.

Environmental & Compliance: Temperature coefficient of ±100ppm/°C, operating temperature range of -55°C ~ 155°C, ROHS3 compliance, and MSL rating of 1 (Unlimited) must be maintained.

Composition: Thick film construction is required for all substitutes.

All identified substitute parts meet these criteria and are classified as Active product status.

Parameter Comparison

Engineering Selection Recommendations

All four components listed—RCS2012F1274CS, CRCW08051M27FKEA, ERJ-6ENF1274V, and RC0805FR-071M27L—satisfy the core electrical and mechanical requirements for direct substitution. Each part is Active product status and ROHS3 compliant.

CRCW08051M27FKEA (Vishay Dale) carries AEC-Q200 automotive qualification and features the lowest seated height at 0.020" (0.50mm), suitable for space-constrained applications.

ERJ-6ENF1274V (Panasonic) also carries AEC-Q200 automotive qualification with the highest seated height at 0.028" (0.70mm).

RC0805FR-071M27L (YAGEO) provides the highest inventory availability (155,326 pcs) and intermediate seated height of 0.024" (0.60mm).

RCS2012F1274CS (Samsung) features anti-sulfur construction in addition to moisture resistance, with seated height of 0.026" (0.66mm).

Selection should be based on application-specific requirements including space constraints, supply chain availability, and any automotive qualification mandates.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051M27FKEA replace RCS2012F1274CS in all applications?

A: Yes, provided that the application does not require the specific anti-sulfur feature of the Samsung component. Both parts meet identical electrical specifications, temperature range, tolerance, and compliance requirements. The Vishay part offers lower seated height.

Q: What is the significance of AEC-Q200 qualification on CRCW08051M27FKEA and ERJ-6ENF1274V?

A: AEC-Q200 is an automotive qualification standard. These parts are suitable for automotive applications. The Samsung RCS2012F1274CS and YAGEO RC0805FR-071M27L do not carry this designation but remain suitable for non-automotive or general industrial applications.

Q: Are there dimensional compatibility concerns when substituting these parts?

A: All parts use the 0805 (2012 Metric) package with identical length and width (0.079" x 0.049" / 2.00mm x 1.25mm). Seated heights vary between 0.020" and 0.028", which may affect PCB layout in space-constrained designs. Verify PCB clearance requirements before substitution.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All four parts carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which substitute offers the best supply availability?

A: RC0805FR-071M27L (YAGEO) has the highest documented inventory at 155,326 pcs, followed by ERJ-6ENF1274V (Panasonic) at 13,796 pcs.