RC6432F2551CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F2551CS is a 2.55 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film resistor features moisture resistance and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with 843 pieces available in inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package format and performance parameters. The following parts meet the substitution criteria for this component.

Substiute Parts

RC6432F2551CS

Samsung Electro-MechanicsIn Stock: 910RC6432F2551CS Datasheet

Current PartRFQ

ERJ-1TNF2551U

Panasonic Electronic ComponentsIn Stock: 12540ERJ-1TNF2551U Datasheet

SimilarRFQ

RMCF2512FT2K55

Stackpole Electronics IncIn Stock: 4656RMCF2512FT2K55 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Electrical Parameters (Must Match Exactly):

• Resistance value: 2.55 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match Exactly):

• Package format: 2512 (6432 Metric)
• Number of terminations: 2

Compliance Parameters (Must Match or Exceed):

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts maintain these exact specifications. Variations in packaging format (Tape & Reel vs. bulk), product status, or manufacturer certifications (such as AEC-Q200 automotive qualification) do not disqualify substitution when core electrical and mechanical parameters are identical.

Parameter Comparison

Engineering Selection Recommendations

RC6432F2551CS (Samsung Electro-Mechanics) - Primary Part

Active production status with established supply chain. Recommended for new designs requiring moisture-resistant thick film construction. ROHS3 compliant with unlimited moisture sensitivity rating.

RMCF2512FT2K55 (Stackpole Electronics Inc) - Preferred Substitute

Active production status with automotive AEC-Q200 qualification. Identical electrical specifications and mechanical footprint to the primary part. Suitable for applications requiring automotive-grade reliability. Larger inventory availability (4639 pieces) supports production requirements.

ERJ-1TNF2551U (Panasonic Electronic Components) - Alternative Substitute

Marked as "Not For New Designs" status. Automotive AEC-Q200 qualified. Electrical specifications are equivalent; minor dimensional variation exists in length (0.252" vs. 0.248") and seated height (0.028" vs. 0.026"). Highest inventory availability (12499 pieces) for legacy design support or existing production lines. Not recommended for new product development.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF2551U be used as a direct replacement for RC6432F2551CS in new designs?

A: No. ERJ-1TNF2551U carries a "Not For New Designs" status from the manufacturer. While electrical parameters are identical, this designation indicates the part is in end-of-life phase. RMCF2512FT2K55 is the recommended substitute for new designs.

Q: What is the significance of the dimensional differences between the three parts?

A: All three parts use the 2512 (6432 Metric) package format. Length variations (0.248" to 0.252") and height differences (0.026" to 0.028") fall within standard package tolerances for this form factor. These minor variations do not affect PCB footprint compatibility or electrical performance.

Q: Does AEC-Q200 automotive qualification affect substitution eligibility?

A: AEC-Q200 qualification is an additional feature provided by Panasonic and Stackpole parts but is not required for substitution. The primary part (RC6432F2551CS) does not carry this certification. If automotive-grade reliability is required, RMCF2512FT2K55 or ERJ-1TNF2551U provide this additional assurance.

Q: Are there packaging format differences between these parts?

A: RC6432F2551CS is supplied in standard packaging. ERJ-1TNF2551U and RMCF2512FT2K55 are supplied in Tape & Reel (TR) format. This affects handling and assembly processes but does not impact electrical or mechanical compatibility.

Q: What is Moisture Sensitivity Level 1 (Unlimited)?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. The part can be stored indefinitely without special humidity controls and does not require baking before soldering. All three parts share this specification.

Q: Can these parts be used interchangeably in existing production?

A: Yes, provided the application does not have specific manufacturer requirements. All three parts meet identical electrical specifications, operate across the same temperature range, and use compatible 2512 package footprints. Verify PCB design tolerances accommodate the minor dimensional variations noted in the parameter comparison table.