RC6432F42R2CS Equivalent & Substitute Parts

Part Overview

The RC6432F42R2CS is a 42.2 Ohms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant. The part is currently active in production with 997 pieces available in stock. Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific application requirements such as automotive qualification or enhanced pulse withstanding capabilities.

Substiute Parts

RC6432F42R2CS

Samsung Electro-MechanicsIn Stock: 1042RC6432F42R2CS Datasheet

Current PartRFQ

AC2512FK-0742R2L

YAGEOIn Stock: 1755AC2512FK-0742R2L Datasheet

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CRCW251242R2FKEG

Vishay DaleIn Stock: 3196CRCW251242R2FKEG Datasheet

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CRCW251242R2FKEGHP

Vishay DaleIn Stock: 2675CRCW251242R2FKEGHP Datasheet

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ERJ-1TNF42R2U

Panasonic Electronic ComponentsIn Stock: 15372ERJ-1TNF42R2U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC6432F42R2CS is determined by strict equivalence across the following critical parameters: resistance value (42.2 Ohms), tolerance (±1%), power rating (1W minimum), package type (2512 / 6432 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and termination count (2). All identified substitute parts maintain these core electrical and mechanical specifications. Variations in secondary features such as automotive AEC-Q200 qualification, pulse withstanding capability, packaging format (tape & reel versus cut tape), and manufacturer series do not affect functional interchangeability within the specified parameter envelope. Dimensional tolerances across substitute parts remain within acceptable PCB assembly and thermal management limits for this package class.

Parameter Comparison

Engineering Selection Recommendations

AC2512FK-0742R2L (YAGEO) is a direct functional equivalent with active product status and AEC-Q200 automotive qualification. This part is suitable for applications requiring automotive-grade reliability and is available in higher inventory (1700 pieces). Packaging is tape & reel format.

CRCW251242R2FKEG (Vishay Dale) maintains full electrical and mechanical equivalence with AEC-Q200 qualification and active product status. This part offers the highest inventory availability (3100 pieces) and is available in cut tape and digi-reel packaging options, providing flexibility for both prototype and production environments.

CRCW251242R2FKEGHP (Vishay Dale) is functionally equivalent with the distinction of a 1.5W power rating (versus 1W nominal). This enhanced power capability provides additional thermal margin and pulse withstanding performance. The part carries AEC-Q200 qualification and active product status. Selection of this variant is appropriate when circuit design permits the higher power rating or when pulse withstanding performance is a design requirement.

ERJ-1TNF42R2U (Panasonic Electronic Components) meets all core electrical and mechanical specifications with AEC-Q200 qualification. However, this part carries a "Not For New Designs" product status designation. While functionally equivalent and available in substantial inventory (15342 pieces), this part is appropriate only for legacy design support, maintenance, or repair applications where design continuity with existing production is required.

Frequently Asked Questions (FAQ)

Q: Can the AC2512FK-0742R2L replace the RC6432F42R2CS directly on the PCB?

A: Yes. Both parts share identical resistance (42.2 Ohms), tolerance (±1%), power rating (1W), package (2512), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Dimensional variations are within acceptable PCB assembly tolerances for this package class.

Q: What is the difference between CRCW251242R2FKEG and CRCW251242R2FKEGHP?

A: The primary difference is power rating. CRCW251242R2FKEG is rated at 1W, while CRCW251242R2FKEGHP is rated at 1.5W. The FKEGHP variant also includes pulse withstanding capability. Both are electrically and mechanically equivalent to the RC6432F42R2CS. Selection depends on whether the application requires enhanced power dissipation or pulse handling performance.

Q: Why is ERJ-1TNF42R2U marked "Not For New Designs"?

A: This designation indicates that Panasonic has discontinued active development and promotion of this part number. While the part remains functionally equivalent and available in inventory, it is reserved for legacy applications and existing design support. New designs should prioritize parts with active product status such as AC2512FK-0742R2L, CRCW251242R2FKEG, or CRCW251242R2FKEGHP.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification, matching the RC6432F42R2CS specification.

Q: What packaging formats are available among the substitute parts?

A: AC2512FK-0742R2L is supplied in tape & reel format. CRCW251242R2FKEG is available in both cut tape and digi-reel packaging. CRCW251242R2FKEGHP and ERJ-1TNF42R2U are supplied in tape & reel format. Packaging selection should align with production assembly requirements and volume considerations.

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

A: Yes. All substitute parts, including the RC6432F42R2CS, carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

Q: Can I use a substitute part with higher inventory availability if the original part becomes unavailable?

A: Yes. CRCW251242R2FKEG (3100 pieces) and ERJ-1TNF42R2U (15342 pieces) offer significantly higher inventory levels than the RC6432F42R2CS (997 pieces). Both maintain full electrical and mechanical equivalence. For new designs, CRCW251242R2FKEG with active product status is the preferred choice.