Equivalent & Substitute Parts for RC1005F125CS

Part Overview

The RC1005F125CS is a 1.2 MOhms ±1% thick film chip resistor in 0402 (1005 Metric) package manufactured by Samsung Electro-Mechanics. This component is rated for 0.063W (1/16W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements such as automotive qualification.

Substiute Parts

RC1005F125CS

Samsung Electro-MechanicsIn Stock: 842RC1005F125CS Datasheet

Current PartRFQ

RC0402FR-071M2L

YAGEOIn Stock: 93775RC0402FR-071M2L Datasheet

DirectRFQ

RMCF0402FT1M20

Stackpole Electronics IncIn Stock: 38578RMCF0402FT1M20 Datasheet

UpgradeRFQ

AC0402FR-071M2L

YAGEOIn Stock: 4063725AC0402FR-071M2L Datasheet

SimilarRFQ

CRCW04021M20FKED

Vishay DaleIn Stock: 74931CRCW04021M20FKED Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across electrical and mechanical parameters. All substitute parts share identical resistance value (1.2 MOhms), tolerance (±1%), power rating (0.063W), package type (0402), composition (thick film), operating temperature range (-55°C to 155°C), moisture sensitivity level (MSL 1), and RoHS3 compliance status.

Substitute parts are grouped into three categories based on additional certifications and features:

Direct Equivalent: RC0402FR-071M2L (YAGEO) matches all core parameters including standard temperature coefficient (±100ppm/°C) and moisture-resistant features without automotive qualification.

Upgrade Option: RMCF0402FT1M20 (Stackpole Electronics Inc) provides automotive AEC-Q200 qualification with slightly elevated temperature coefficient (±200ppm/°C), suitable for automotive applications requiring enhanced reliability standards.

Similar Options: AC0402FR-071M2L (YAGEO) and CRCW04021M20FKED (Vishay Dale) both incorporate automotive AEC-Q200 qualification. AC0402FR-071M2L maintains standard temperature coefficient (±100ppm/°C) with moisture-resistant features. CRCW04021M20FKED provides automotive qualification with standard temperature coefficient (±100ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: RC0402FR-071M2L (YAGEO) provides direct equivalence to RC1005F125CS with identical electrical specifications, moisture-resistant construction, and standard temperature coefficient. This option maintains full compatibility with existing designs without modification.

For Automotive Applications: RMCF0402FT1M20 (Stackpole Electronics Inc), AC0402FR-071M2L (YAGEO), or CRCW04021M20FKED (Vishay Dale) are suitable selections. All three incorporate automotive AEC-Q200 qualification. AC0402FR-071M2L combines AEC-Q200 certification with moisture-resistant features and standard temperature coefficient (±100ppm/°C), matching the thermal stability profile of the original part. RMCF0402FT1M20 and CRCW04021M20FKED provide AEC-Q200 qualification with standard temperature coefficient but without explicit moisture-resistant designation.

For Moisture-Critical Environments: RC0402FR-071M2L (YAGEO) or AC0402FR-071M2L (YAGEO) are recommended due to explicit moisture-resistant features. Both maintain MSL 1 rating and ROHS3 compliance.

For Temperature-Sensitive Circuits: RC0402FR-071M2L (YAGEO), AC0402FR-071M2L (YAGEO), or CRCW04021M20FKED (Vishay Dale) maintain the standard ±100ppm/°C temperature coefficient matching the original RC1005F125CS specification. RMCF0402FT1M20 operates at ±200ppm/°C and is suitable only where this higher coefficient is acceptable.

Frequently Asked Questions (FAQ)

Q: Can RC0402FR-071M2L (YAGEO) be used as a direct replacement for RC1005F125CS (Samsung)?

A: Yes. RC0402FR-071M2L matches all core electrical and mechanical parameters: 1.2 MOhms ±1% resistance, 0.063W power rating, 0402 package, thick film composition, -55°C to 155°C operating range, ±100ppm/°C temperature coefficient, moisture-resistant construction, MSL 1, and ROHS3 compliance. No circuit modification is required.

Q: What is the difference between RMCF0402FT1M20 and the other substitute options?

A: RMCF0402FT1M20 (Stackpole) is the only substitute with automotive AEC-Q200 qualification but without explicit moisture-resistant designation. Its temperature coefficient is ±200ppm/°C compared to ±100ppm/°C for other options. This higher coefficient may affect circuit performance in temperature-sensitive applications. Selection depends on whether automotive qualification is required and whether the elevated temperature coefficient is acceptable.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: Yes. All substitute parts listed—RC0402FR-071M2L, RMCF0402FT1M20, AC0402FR-071M2L, and CRCW04021M20FKED—are supplied in Tape & Reel (TR) packaging, matching the original RC1005F125CS packaging format.

Q: Which substitute part has the highest inventory availability?

A: AC0402FR-071M2L (YAGEO) has the highest inventory with 4,063,692 pieces in stock. RC0402FR-071M2L (YAGEO) has 93,749 pieces. CRCW04021M20FKED (Vishay Dale) has 74,891 pieces. RMCF0402FT1M20 (Stackpole) has 38,495 pieces.

Q: Can RMCF0402FT1M20 or CRCW04021M20FKED be used in moisture-sensitive applications?

A: RMCF0402FT1M20 and CRCW04021M20FKED do not carry explicit moisture-resistant designation in their specifications. For applications requiring moisture resistance, RC0402FR-071M2L or AC0402FR-071M2L are recommended as both specify moisture-resistant construction.

Q: What is the physical dimension difference between substitute parts?

A: All substitute parts share identical length and width (0.039" L x 0.020" W / 1.00mm x 0.50mm). Height-seated maximum varies slightly: RC1005F125CS, RMCF0402FT1M20, and CRCW04021M20FKED are 0.016" (0.40mm); AC0402FR-071M2L is 0.015" (0.37mm). This 0.01mm difference is within standard PCB assembly tolerances and does not affect interchangeability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts—RC0402FR-071M2L, RMCF0402FT1M20, AC0402FR-071M2L, and CRCW04021M20FKED—are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original RC1005F125CS compliance status.