RC1005F2101CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F2101CS is a 2.1 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated for 0.063W (1/16W) power dissipation with moisture resistant construction and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary to address supply chain continuity, inventory optimization, and application-specific requirements such as automotive qualification or enhanced power ratings.

Substiute Parts

RC1005F2101CS

Samsung Electro-MechanicsIn Stock: 984RC1005F2101CS Datasheet

Current PartRFQ

CR0402-FX-2101GLF

Bourns Inc.In Stock: 13536CR0402-FX-2101GLF Datasheet

DirectRFQ

RC0402FR-072K1L

YAGEOIn Stock: 5433RC0402FR-072K1L Datasheet

DirectRFQ

ERJ-2RKF2101X

Panasonic Electronic ComponentsIn Stock: 83780ERJ-2RKF2101X Datasheet

UpgradeRFQ

AC0402FR-072K1L

YAGEOIn Stock: 10605AC0402FR-072K1L Datasheet

SimilarRFQ

CRCW04022K10FKED

Vishay DaleIn Stock: 43437CRCW04022K10FKED Datasheet

SimilarRFQ

RMCF0402FT2K10

Stackpole Electronics IncIn Stock: 52858RMCF0402FT2K10 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F2101CS is determined by strict alignment with the following core parameters: resistance value (2.1 kOhms), tolerance (±1%), package format (0402/1005 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, REACH Unaffected, EAR99).

Direct Equivalents maintain identical electrical and mechanical specifications including power rating (0.063W/1/16W), physical dimensions, and packaging format. These parts are interchangeable without circuit redesign.

Upgrade Substitutes provide enhanced power ratings (0.1W/1/10W) or additional certifications (AEC-Q200 automotive qualification) while maintaining all other core parameters. These parts offer superior performance margins and are suitable for applications requiring automotive-grade reliability.

Similar Substitutes include automotive AEC-Q200 qualification or alternative packaging options (Tape & Reel vs. Cut Tape) while preserving all electrical specifications. These parts are compatible with designs requiring automotive compliance or specific supply chain packaging.

All substitute parts listed maintain identical resistance, tolerance, package dimensions, temperature coefficient, and operating temperature range as the main part.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): CR0402-FX-2101GLF (Bourns Inc.) and RC0402FR-072K1L (YAGEO) are direct functional equivalents to RC1005F2101CS. Both maintain identical electrical parameters, power rating, and package format. Selection between these options depends on packaging preference (Tape & Reel vs. Cut Tape) and supply chain availability. RC0402FR-072K1L includes moisture resistant construction matching the original part specification.

For Automotive Applications: AC0402FR-072K1L (YAGEO), CRCW04022K10FKED (Vishay Dale), and RMCF0402FT2K10 (Stackpole Electronics Inc) are qualified to AEC-Q200 automotive standards while maintaining all core electrical specifications. These parts are suitable for automotive-grade circuit designs requiring enhanced reliability qualification.

For Enhanced Thermal Performance: ERJ-2RKF2101X (Panasonic Electronic Components) provides upgraded power rating of 0.1W (1/10W) compared to the standard 0.063W rating, with AEC-Q200 automotive qualification. This part is appropriate for applications requiring higher thermal dissipation margins or automotive compliance.

All listed substitutes maintain ROHS3 compliance, unlimited MSL rating, and identical operating temperature range (-55°C to 155°C). Selection should be based on specific application requirements, packaging logistics, and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-2101GLF replace RC1005F2101CS in existing designs? A: Yes. CR0402-FX-2101GLF is a direct equivalent with identical resistance (2.1 kΩ), tolerance (±1%), power rating (0.063W), package format (0402), and operating temperature range (-55°C to 155°C). The only difference is packaging format (Tape & Reel vs. Cut Tape), which does not affect circuit performance.

Q: What is the difference between RC0402FR-072K1L and RC1005F2101CS? A: Both parts are functionally identical with matching electrical specifications and moisture resistant construction. RC0402FR-072K1L is manufactured by YAGEO and available in Cut Tape or Digi-Reel packaging, while RC1005F2101CS is Samsung Electro-Mechanics in Cut Tape format. No circuit redesign is required for substitution.

Q: When should ERJ-2RKF2101X be selected instead of the standard 0.063W rating? A: ERJ-2RKF2101X provides 0.1W power rating compared to the standard 0.063W. This upgrade is appropriate when circuit analysis indicates higher thermal dissipation requirements or when design margins for thermal performance are critical. The part maintains all other specifications including resistance, tolerance, and operating temperature range.

Q: Are automotive-qualified parts (AEC-Q200) compatible with non-automotive applications? A: Yes. Automotive-qualified parts such as AC0402FR-072K1L, CRCW04022K10FKED, and RMCF0402FT2K10 meet or exceed standard commercial specifications. These parts are fully compatible with non-automotive designs and offer enhanced reliability qualification as an additional benefit.

Q: What is the significance of MSL 1 (Unlimited) rating? A: MSL 1 indicates unlimited moisture sensitivity level, meaning the component has no moisture-related storage or handling restrictions. All listed parts maintain MSL 1 rating, ensuring compatibility with standard manufacturing and storage practices.

Q: Does package format (Cut Tape vs. Tape & Reel) affect electrical performance? A: No. Package format affects only supply chain logistics and assembly automation compatibility. Electrical specifications, performance characteristics, and circuit functionality remain identical regardless of packaging format. Selection should be based on manufacturing equipment requirements and inventory management practices.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the environmental compliance requirement of RC1005F2101CS. All parts are also REACH Unaffected and classified as EAR99 for export purposes.