RC6432F2553CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F2553CS is a 255 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 maintains ROHS3 compliance. The part is currently in active production status with 886 pieces available in inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with application requirements, enabling procurement flexibility and supply chain continuity.

Substiute Parts

RC6432F2553CS

Samsung Electro-MechanicsIn Stock: 910RC6432F2553CS Datasheet

Current PartRFQ

CRCW2512255KFKEG

Vishay DaleIn Stock: 2948CRCW2512255KFKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F2553CS are identified based on strict equivalence across the following critical parameters:

Electrical Equivalence: Resistance value of 255 kOhms, tolerance of ±1%, power rating of 1W, and temperature coefficient of ±100ppm/°C must match exactly.

Mechanical Compatibility: Package designation of 2512 (6432 Metric) ensures physical interchangeability on PCB layouts. Dimensional variations within supplier tolerances (length, width, height) do not disqualify substitution.

Environmental & Compliance: Operating temperature range of -55°C to 155°C, Moisture Sensitivity Level 1, ROHS3 compliance, and REACH unaffected status must be maintained.

Composition: Thick film construction is required for functional equivalence.

The CRCW2512255KFKEG from Vishay Dale meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the RC6432F2553CS and CRCW2512255KFKEG are active production components with full ROHS3 and REACH compliance. Selection between these parts should be based on:

Availability: The CRCW2512255KFKEG currently has higher inventory (2915 pieces) compared to the RC6432F2553CS (886 pieces), providing supply chain advantage.

Packaging Format: The RC6432F2553CS is supplied in standard packaging, while the CRCW2512255KFKEG is supplied in Tape & Reel (TR) format, which may influence procurement and assembly processes.

Automotive Qualification: The CRCW2512255KFKEG carries AEC-Q200 automotive qualification, making it suitable for automotive applications where this certification is required. The RC6432F2553CS does not specify this rating.

Dimensional Tolerance: Both parts meet 2512 package specifications. The RC6432F2553CS has a maximum seated height of 0.026" (0.66mm), while the CRCW2512255KFKEG has 0.028" (0.70mm). This minor difference remains within standard PCB assembly clearances.

For non-automotive applications with standard packaging requirements, either part is electrically and mechanically interchangeable. For automotive applications, the CRCW2512255KFKEG is the appropriate selection due to AEC-Q200 compliance.

Frequently Asked Questions (FAQ)

Q: Can the CRCW2512255KFKEG replace the RC6432F2553CS in all applications?

A: Yes, for applications where AEC-Q200 automotive qualification is not required. Both parts are electrically identical with matching resistance, tolerance, power rating, temperature coefficient, and operating range. Mechanical compatibility is confirmed for the 2512 package. Packaging format differs (Tape & Reel vs. standard), which may affect procurement and assembly workflows.

Q: What is the significance of the ±1% tolerance specification?

A: The ±1% tolerance indicates that the actual resistance value will fall within 252.45 kOhms to 257.55 kOhms. This tight tolerance is critical for precision circuits where resistance accuracy directly impacts circuit performance. Both substitute parts maintain this specification.

Q: Does the 2512 package designation guarantee mechanical interchangeability?

A: The 2512 (6432 Metric) package designation confirms that both parts share the same footprint and mounting pattern. Minor dimensional variations (length 0.248", width 0.126" to 0.124", height 0.026" to 0.028") fall within standard PCB design tolerances and do not prevent interchangeability on standard circuit boards.

Q: What does Moisture Sensitivity Level 1 mean?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and requires no special moisture control during storage or handling. Both the RC6432F2553CS and CRCW2512255KFKEG carry this rating, eliminating moisture-related procurement constraints.

Q: Why does the CRCW2512255KFKEG specify AEC-Q200 while the RC6432F2553CS does not?

A: AEC-Q200 is an automotive industry qualification standard. The CRCW2512255KFKEG is specifically qualified for automotive applications, while the RC6432F2553CS does not carry this designation. For non-automotive applications, this difference is not relevant. For automotive use, AEC-Q200 qualification may be contractually required.

Q: Are there any thermal performance differences between these parts?

A: Both parts share identical temperature coefficient (±100ppm/°C) and operating range (-55°C to 155°C). Thermal performance is equivalent. The maximum seated height difference (0.66mm vs. 0.70mm) has negligible impact on thermal dissipation in standard PCB assemblies.

Q: What is the ECCN and HTSUS classification relevance?

A: Both parts carry ECCN EAR99 and HTSUS 8533.21.0030 classifications, indicating they are subject to the same export control and tariff regulations. This ensures consistent compliance handling for either part.