RC1005F5112CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F5112CS is a 51.1 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 1/16W (0.063W) 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 identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional interchangeability in circuit applications.

Substiute Parts

RC1005F5112CS

Samsung Electro-MechanicsIn Stock: 1005RC1005F5112CS Datasheet

Current PartRFQ

CR0402-FX-5112GLF

Bourns Inc.In Stock: 144688CR0402-FX-5112GLF Datasheet

DirectRFQ

RC0402FR-0751K1L

YAGEOIn Stock: 1312164RC0402FR-0751K1L Datasheet

DirectRFQ

ERJ-2RKF5112X

Panasonic Electronic ComponentsIn Stock: 139506ERJ-2RKF5112X Datasheet

UpgradeRFQ

AC0402FR-0751K1L

YAGEOIn Stock: 6006AC0402FR-0751K1L Datasheet

SimilarRFQ

CRCW040251K1FKED

Vishay DaleIn Stock: 240266CRCW040251K1FKED Datasheet

SimilarRFQ

RMCF0402FT51K1

Stackpole Electronics IncIn Stock: 82057RMCF0402FT51K1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005F5112CS are classified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Matching Parameters:

• Resistance value: 51.1 kOhms
• Tolerance: ±1%
• Package: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature: -55°C to 155°C
• Terminations: 2
• RoHS3 Compliance
• MSL: 1 (Unlimited)

Substitution Categories:

Direct Equivalents maintain identical electrical and mechanical specifications including power rating (1/16W, 0.063W):

• CR0402-FX-5112GLF (Bourns Inc.)
• RC0402FR-0751K1L (YAGEO)

Upgrade Substitute provides higher power rating (1/10W, 0.1W) with automotive qualification:

• ERJ-2RKF5112X (Panasonic Electronic Components)

Similar Substitutes match core specifications with automotive AEC-Q200 qualification:

• AC0402FR-0751K1L (YAGEO)
• CRCW040251K1FKED (Vishay Dale)
• RMCF0402FT51K1 (Stackpole Electronics Inc)

All substitute parts maintain identical resistance, tolerance, package dimensions, temperature coefficient, and operating temperature range. Variations exist in packaging format (Cut Tape vs. Tape & Reel), power rating, and automotive qualification features.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Equivalent Performance):

CR0402-FX-5112GLF and RC0402FR-0751K1L provide direct electrical and mechanical equivalence to RC1005F5112CS. Both parts maintain identical resistance, tolerance, power rating, and package specifications. RC0402FR-0751K1L includes moisture resistant construction matching the original part. Selection between these options depends on packaging availability (Tape & Reel format) and inventory requirements.

Upgrade Substitution (Enhanced Capability):

ERJ-2RKF5112X offers increased power rating (0.1W vs. 0.063W) with automotive AEC-Q200 qualification. This part is suitable for applications requiring higher thermal margin or automotive-grade reliability. The upgrade maintains all other electrical parameters and operating temperature range.

Automotive-Qualified Alternatives:

AC0402FR-0751K1L, CRCW040251K1FKED, and RMCF0402FT51K1 are automotive-grade substitutes with AEC-Q200 certification. These parts are appropriate for automotive and industrial applications requiring enhanced reliability standards. AC0402FR-0751K1L additionally includes moisture resistant construction. All three maintain the original 1/16W power rating and electrical specifications.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) rating, ensuring compatibility with standard manufacturing processes and storage requirements. Selection should account for specific application requirements regarding automotive qualification and moisture resistance features.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-5112GLF directly replace RC1005F5112CS in all applications?

A: CR0402-FX-5112GLF provides direct electrical and mechanical substitution. Both parts share identical resistance (51.1 kOhms), tolerance (±1%), power rating (0.063W), package (0402), and operating temperature range (-55°C to 155°C). The primary difference is packaging format (Tape & Reel vs. Cut Tape). Direct substitution is valid for standard applications. Applications requiring moisture resistant construction should specify RC0402FR-0751K1L instead.

Q: What is the difference between the main part and ERJ-2RKF5112X?

A: ERJ-2RKF5112X is classified as an upgrade substitute due to higher power rating (0.1W vs. 0.063W). All other electrical parameters remain identical: 51.1 kOhms resistance, ±1% tolerance, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. The increased power rating provides greater thermal margin in power-dissipating applications. ERJ-2RKF5112X includes automotive AEC-Q200 qualification.

Q: Are automotive-qualified parts (AEC-Q200) compatible with non-automotive applications?

A: Automotive-qualified parts meet or exceed standard commercial specifications. AC0402FR-0751K1L, CRCW040251K1FKED, and RMCF0402FT51K1 are fully compatible with non-automotive applications. These parts maintain identical electrical specifications and package dimensions. Selection of automotive-grade components is optional unless application requirements specifically mandate such qualification.

Q: What packaging formats are available for these substitutes?

A: RC1005F5112CS is supplied in Cut Tape (CT) format. Direct substitutes CR0402-FX-5112GLF, RC0402FR-0751K1L, ERJ-2RKF5112X, AC0402FR-0751K1L, and RMCF0402FT51K1 are available in Tape & Reel (TR) format. CRCW040251K1FKED is available in both Cut Tape (CT) and Digi-Reel® formats. Packaging selection depends on manufacturing process requirements and volume specifications.

Q: Do all substitute parts have the same physical dimensions?

A: All substitute parts share the same 0402 (1005 Metric) package specification with dimensions of 0.039" L x 0.020" W (1.00mm x 0.50mm). Maximum seated height is 0.016" (0.40mm) for most parts, with AC0402FR-0751K1L at 0.015" (0.37mm). These minor height variations are within standard PCB assembly tolerances and do not affect interchangeability.

Q: Which substitute offers the best inventory availability?

A: RC0402FR-0751K1L (YAGEO) has the highest reported inventory at 1,312,082 pieces. CR0402-FX-5112GLF (Bourns) has 144,639 pieces, and CRCW040251K1FKED (Vishay Dale) has 240,245 pieces. Inventory levels are subject to change and should be verified with current supplier data.

Q: Can RC0402FR-0751K1L replace RC1005F5112CS in moisture-sensitive applications?

A: RC0402FR-0751K1L includes moisture resistant construction matching RC1005F5112CS. Both parts maintain MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. This part is suitable for applications requiring moisture resistant thick film construction.