RC6432F21R5CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F21R5CS is a 21.5 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 maintains ROHS3 compliance with MSL 1 rating. The part is currently in active production status with 672 pieces available in inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the 2512 package footprint, allowing for design flexibility and supply chain optimization.

Substiute Parts

RC6432F21R5CS

Samsung Electro-MechanicsIn Stock: 732RC6432F21R5CS Datasheet

Current PartRFQ

RC2512FK-0721R5L

YAGEOIn Stock: 8822RC2512FK-0721R5L Datasheet

DirectRFQ

CRCW251221R5FKEG

Vishay DaleIn Stock: 7539CRCW251221R5FKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F21R5CS are qualified based on strict electrical and mechanical parameter alignment. The substitution criteria are:

Primary Substitution Parameters:

• Resistance value: 21.5 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Package: 2512 (6432 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)
• RoHS compliance: ROHS3 (exact match required)

Direct Equivalent: RC2512FK-0721R5L (YAGEO) meets all primary substitution parameters with identical electrical specifications and 2512 package dimensions within tolerance.

Similar Equivalent with Enhanced Rating: CRCW251221R5FKEG (Vishay Dale) meets all primary substitution parameters and includes automotive AEC-Q200 qualification, providing additional reliability certification for applications requiring automotive-grade components.

Parameter Comparison

Engineering Selection Recommendations

RC2512FK-0721R5L (YAGEO) is a direct functional equivalent suitable for applications requiring a 21.5 Ohms ±1% 1W thick film resistor in 2512 package format. This part maintains identical electrical performance and environmental compliance as the primary part, with ROHS3 certification and MSL 1 rating. Dimensional variations are within standard PCB layout tolerances for 2512 package footprints.

CRCW251221R5FKEG (Vishay Dale) provides equivalent electrical and mechanical performance with the addition of automotive AEC-Q200 qualification. This part is appropriate for applications requiring automotive-grade reliability certification or operating in automotive environments. The slight height variation (0.028" maximum vs. 0.026" maximum) remains within standard 2512 package specifications and does not affect PCB assembly compatibility.

Both substitute parts carry active product status and maintain full ROHS3 and REACH compliance equivalent to the primary part.

Frequently Asked Questions (FAQ)

Q: Can RC2512FK-0721R5L replace RC6432F21R5CS in existing designs?

A: Yes. RC2512FK-0721R5L meets all electrical specifications (21.5 Ohms ±1%, 1W, ±100ppm/°C, -55°C to 155°C) and mechanical requirements (2512 package, 2 terminations). Dimensional tolerances are within standard PCB footprint specifications for 2512 components.

Q: What is the difference between RC2512FK-0721R5L and CRCW251221R5FKEG?

A: Both parts are electrically and mechanically equivalent. CRCW251221R5FKEG includes automotive AEC-Q200 qualification, making it suitable for automotive applications. Height-seated maximum is 0.028" (CRCW) versus 0.026" (RC2512FK), a difference within standard 2512 package tolerance.

Q: Are all three parts ROHS3 compliant?

A: Yes. RC6432F21R5CS, RC2512FK-0721R5L, and CRCW251221R5FKEG are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can CRCW251221R5FKEG be used in non-automotive applications?

A: Yes. CRCW251221R5FKEG meets all electrical and mechanical specifications for general industrial applications. The automotive AEC-Q200 qualification represents an additional certification level and does not restrict use in non-automotive designs.

Q: What packaging formats are available for these substitute parts?

A: RC2512FK-0721R5L and CRCW251221R5FKEG are supplied in Tape & Reel (TR) format. Verify packaging requirements for your procurement process.

Q: Are dimensional differences between the three parts significant for PCB layout?

A: No. All three parts use the 2512 (6432 Metric) package with dimensions within standard tolerance ranges. Length variations (0.248" to 0.250") and width variations (0.122" to 0.126") are within typical PCB footprint design margins. Height differences (0.026" to 0.028") do not affect assembly compatibility.