RC1005F2103CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F2103CS is a 210 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 0.063W (1/16W) power dissipation with moisture resistant characteristics and operates across the temperature range of -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 based on matching electrical specifications (resistance value, tolerance, power rating, temperature coefficient), mechanical compatibility (package size, dimensions, termination count), and environmental ratings. Alternative sources provide design flexibility, supply chain redundancy, and application-specific feature enhancements such as automotive qualification.

Substiute Parts

RC1005F2103CS

Samsung Electro-MechanicsIn Stock: 1060RC1005F2103CS Datasheet

Current PartRFQ

CR0402-FX-2103GLF

Bourns Inc.In Stock: 15154CR0402-FX-2103GLF Datasheet

DirectRFQ

RC0402FR-07210KL

YAGEOIn Stock: 210267RC0402FR-07210KL Datasheet

DirectRFQ

ERJ-2RKF2103X

Panasonic Electronic ComponentsIn Stock: 102231ERJ-2RKF2103X Datasheet

UpgradeRFQ

AC0402FR-07210KL

YAGEOIn Stock: 42912AC0402FR-07210KL Datasheet

SimilarRFQ

CRCW0402210KFKED

Vishay DaleIn Stock: 6405CRCW0402210KFKED Datasheet

SimilarRFQ

CRCW0402210KFKTD

Vishay DaleIn Stock: 10230CRCW0402210KFKTD Datasheet

SimilarRFQ

RMCF0402FT210K

Stackpole Electronics IncIn Stock: 57919RMCF0402FT210K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 210 kOhms
• Tolerance: ±1%
• Package / Case: 0402 (1005 Metric)
• Temperature Coefficient: ±100 ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Composition: Thick Film
• Terminations: 2
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Power Rating: 0.063W (1/16W) is the baseline; higher power ratings (0.1W / 1/10W) are acceptable upgrades
• Height (Seated Max): Minor variations within 0.40mm maximum are acceptable
• Manufacturer and series designation
• Compliance certifications (RoHS, REACH, AEC-Q200)

Substitute parts are grouped into three categories:

Direct Equivalents: Identical electrical and mechanical specifications with matching power rating (0.063W / 1/16W). These include CR0402-FX-2103GLF (Bourns Inc.), RC0402FR-07210KL (YAGEO), CRCW0402210KFKED (Vishay Dale), and CRCW0402210KFKTD (Vishay Dale).

Upgrade Substitute: ERJ-2RKF2103X (Panasonic Electronic Components) provides higher power rating (0.1W / 1/10W) with automotive AEC-Q200 qualification, suitable for applications requiring enhanced thermal performance.

Similar Substitutes: AC0402FR-07210KL (YAGEO) and RMCF0402FT210K (Stackpole Electronics Inc.) match all electrical and mechanical parameters with added automotive AEC-Q200 qualification for applications requiring automotive-grade reliability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

RC0402FR-07210KL (YAGEO) and CR0402-FX-2103GLF (Bourns Inc.) provide direct electrical and mechanical equivalence to RC1005F2103CS. Both maintain ROHS3 compliance, identical power rating (0.063W), and 0402 package geometry. RC0402FR-07210KL includes moisture resistant features matching the original part. Selection between these options depends on supplier availability and procurement lead times.

For Automotive Applications:

AC0402FR-07210KL (YAGEO), CRCW0402210KFKED (Vishay Dale), and RMCF0402FT210K (Stackpole Electronics Inc.) incorporate AEC-Q200 automotive qualification while maintaining electrical equivalence. These parts are suitable for automotive-grade circuit designs requiring enhanced reliability documentation. All three maintain ROHS3 compliance and 0.063W power rating.

For Enhanced Thermal Performance:

ERJ-2RKF2103X (Panasonic Electronic Components) provides upgraded power rating (0.1W / 1/10W) with AEC-Q200 qualification. This part is applicable in designs where thermal margin improvement is required without changing circuit topology. The higher power rating ensures lower operating temperature under identical load conditions.

Compliance Considerations:

CRCW0402210KFKTD (Vishay Dale) exhibits RoHS non-compliance and REACH-affected status. This part is not suitable for applications subject to RoHS3 or REACH regulatory requirements. Use only in legacy or non-regulated applications where compliance exemptions apply.

Frequently Asked Questions (FAQ)

Q: Can RC0402FR-07210KL directly replace RC1005F2103CS in existing designs?

A: Yes. RC0402FR-07210KL matches all critical electrical parameters (210 kOhms, ±1% tolerance, 0.063W power rating, ±100 ppm/°C temperature coefficient) and mechanical specifications (0402 package, 0.40mm maximum height). Both parts are ROHS3 compliant with MSL 1 rating. No circuit redesign is required.

Q: What is the difference between direct equivalents and upgrade substitutes?

A: Direct equivalents (CR0402-FX-2103GLF, RC0402FR-07210KL, CRCW0402210KFKED) maintain identical power rating (0.063W / 1/16W). The upgrade substitute ERJ-2RKF2103X provides higher power rating (0.1W / 1/10W) while preserving all other electrical specifications. Higher power rating reduces resistor operating temperature under load, extending component life in thermally constrained applications.

Q: Are automotive-qualified parts (AEC-Q200) interchangeable with non-automotive versions?

A: Yes, automotive-qualified parts are interchangeable with non-automotive equivalents from an electrical and mechanical standpoint. AEC-Q200 certification indicates enhanced reliability testing and qualification documentation suitable for automotive applications. Non-automotive parts may be used in automotive designs if regulatory requirements do not mandate AEC-Q200 qualification.

Q: What does MSL 1 (Unlimited) moisture sensitivity mean?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. The component does not absorb significant moisture during storage and does not require pre-reflow baking before soldering. This simplifies manufacturing logistics and reduces production handling requirements.

Q: Can CRCW0402210KFKTD be used in new designs?

A: CRCW0402210KFKTD is not recommended for new designs. This part exhibits RoHS non-compliance and REACH-affected status, indicating it does not meet current environmental regulations. Use only in legacy product maintenance or applications with explicit regulatory exemptions. For new designs, select ROHS3-compliant alternatives such as CRCW0402210KFKED, RC0402FR-07210KL, or RMCF0402FT210K.

Q: How do height variations (0.37mm vs 0.40mm) affect PCB assembly?

A: Height variations within the specified maximum (0.40mm) do not affect PCB assembly compatibility. AC0402FR-07210KL at 0.37mm maximum height is within tolerance and interchangeable with parts at 0.40mm maximum height. Both dimensions accommodate standard 0402 package footprints and reflow soldering profiles.

Q: Which substitute offers the best supply availability?

A: RC0402FR-07210KL (YAGEO) maintains the highest inventory level (210,200 pcs) among all listed substitutes, followed by RMCF0402FT210K (Stackpole Electronics Inc., 57,892 pcs). These parts provide optimal supply chain reliability for high-volume production requirements.