RC6432F4531CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F4531CS is a 4.53 kOhms ±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 in active production status with 796 units in stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the 2512 package form factor. Alternative sources provide identical resistance values, tolerance, power rating, and thermal characteristics while meeting the same environmental and compliance standards.

Substiute Parts

RC6432F4531CS

Samsung Electro-MechanicsIn Stock: 892RC6432F4531CS Datasheet

Current PartRFQ

AC2512FK-074K53L

YAGEOIn Stock: 5212AC2512FK-074K53L Datasheet

UpgradeRFQ

ERJ-1TNF4531U

Panasonic Electronic ComponentsIn Stock: 8479ERJ-1TNF4531U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across four critical parameter categories:

Electrical Parameters: Resistance value (4.53 kOhms), tolerance (±1%), and power rating (1W) must be identical. Temperature coefficient (±100ppm/°C) and operating range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Parameters: Package designation (2512 / 6432 Metric) and number of terminations (2) must match. Physical dimensions and height specifications confirm PCB footprint compatibility.

Material Composition: Thick film construction is required for all substitutes.

Environmental & Compliance: Moisture Sensitivity Level 1, ROHS3 compliance, and REACH unaffected status are mandatory for direct substitution.

Substitute parts are classified as either Upgrade (enhanced features while maintaining core specifications) or Similar (equivalent specifications with different product lifecycle status).

Parameter Comparison

Engineering Selection Recommendations

AC2512FK-074K53L (YAGEO) - Upgrade Substitute

This part maintains all core electrical and mechanical specifications while adding AEC-Q200 automotive qualification. It is actively produced and available in higher inventory quantities (5146 units). The upgrade classification reflects enhanced automotive-grade reliability certification. Dimensions (6.35mm L × 3.10mm W × 0.65mm H max) are within acceptable PCB footprint tolerances for 2512 packages. Tape & Reel packaging supports automated assembly processes.

ERJ-1TNF4531U (Panasonic) - Similar Substitute

This part provides electrical and mechanical equivalence with AEC-Q200 automotive qualification. However, product status is listed as "Not For New Designs," indicating end-of-life trajectory. Use this substitute only when existing inventory must be maintained or when design legacy requirements mandate Panasonic sourcing. Dimensions (6.40mm L × 3.20mm W × 0.70mm H max) remain compatible with 2512 footprints. High inventory availability (8469 units) supports near-term procurement needs.

Selection Priority:

For new designs and active production: AC2512FK-074K53L (YAGEO)

For legacy system maintenance: ERJ-1TNF4531U (Panasonic) with documented lifecycle status

For original specification continuity: RC6432F4531CS (Samsung)

Frequently Asked Questions (FAQ)

Q: Can AC2512FK-074K53L replace RC6432F4531CS in existing designs?

A: Yes. Both parts share identical electrical specifications (4.53 kOhms ±1%, 1W), thermal characteristics (±100ppm/°C, -55°C to 155°C), and 2512 package form factor. AC2512FK-074K53L adds AEC-Q200 automotive qualification without changing core performance. Physical dimensions are within standard 2512 package tolerances.

Q: Why is ERJ-1TNF4531U marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life phase. Panasonic continues production for existing customer support but does not recommend it for new product development. Existing designs using this part may continue; new designs should transition to AC2512FK-074K53L.

Q: Are there packaging differences between these substitutes?

A: RC6432F4531CS is supplied in bulk packaging. AC2512FK-074K53L and ERJ-1TNF4531U are supplied in Tape & Reel (TR) format, which is standard for automated PCB assembly. Tape & Reel packaging does not affect electrical or mechanical compatibility.

Q: Do all three parts meet moisture and compliance requirements?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and rated MSL 1 (Unlimited moisture sensitivity). RC6432F4531CS and AC2512FK-074K53L explicitly specify moisture-resistant construction. ERJ-1TNF4531U does not list moisture resistance in its feature set but maintains equivalent MSL rating.

Q: What are the physical dimension tolerances for PCB footprint compatibility?

A: All three parts conform to 2512 (6432 Metric) package specifications. Length ranges 6.30–6.40mm, width ranges 3.10–3.20mm, and maximum seated height ranges 0.65–0.70mm. These variations are within standard PCB design tolerances for 2512 footprints and do not require layout modifications.

Q: Can these parts be used interchangeably in automotive applications?

A: AC2512FK-074K53L and ERJ-1TNF4531U carry AEC-Q200 automotive qualification. RC6432F4531CS does not list AEC-Q200 certification. For automotive designs requiring AEC-Q200 compliance, use AC2512FK-074K53L or ERJ-1TNF4531U.