RC6432F2940CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F2940CS is a 294 Ohms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. 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 1074 units available in inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

RC6432F2940CS

Samsung Electro-MechanicsIn Stock: 1149RC6432F2940CS Datasheet

Current PartRFQ

CRCW2512294RFKEGHP

Vishay DaleIn Stock: 1986CRCW2512294RFKEGHP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F2940CS is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• Resistance value: 294 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 2512 (6432 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Allowable Variation Parameters:

• Power rating: Equal to or greater than 1W
• Temperature coefficient: ±100ppm/°C or better
• Operating temperature range: Must encompass -55°C ~ 155°C minimum
• Moisture sensitivity: MSL 1 or equivalent
• RoHS compliance: ROHS3 or equivalent

The CRCW2512294RFKEGHP from Vishay Dale qualifies as a substitute because it maintains all critical parameters while offering enhanced power rating (1.5W vs. 1W) and automotive-grade qualification (AEC-Q200).

Parameter Comparison

Engineering Selection Recommendations

Primary Part: RC6432F2940CS

• Active production status with established supply chain
• Samsung Electro-Mechanics manufacturing
• ROHS3 compliant, MSL 1 rated
• Suitable for general industrial and consumer applications

Substitute Part: CRCW2512294RFKEGHP

• Active production status with higher inventory availability (1943 units)
• Vishay Dale manufacturing with automotive-grade AEC-Q200 qualification
• Enhanced power rating (1.5W) provides thermal margin above 1W requirement
• ROHS3 compliant, MSL 1 rated
• Pulse withstanding capability adds robustness for transient conditions
• Mechanical dimensions within functional equivalence for PCB layout

Selection between these parts depends on supply availability, lead time requirements, and application-specific needs for automotive qualification or enhanced pulse withstanding performance.

Frequently Asked Questions (FAQ)

Q: Can CRCW2512294RFKEGHP directly replace RC6432F2940CS in existing designs?

A: Yes. Both parts maintain identical resistance value (294 Ohms), tolerance (±1%), package format (2512), composition (thick film), and operating temperature range (-55°C ~ 155°C). Mechanical dimensions are functionally equivalent within standard PCB layout tolerances.

Q: What is the significance of the 1.5W vs. 1W power rating difference?

A: The CRCW2512294RFKEGHP's 1.5W rating exceeds the RC6432F2940CS requirement of 1W. This provides additional thermal headroom and is not a limiting factor for substitution. The substitute part can safely operate in any application designed for 1W or lower power dissipation.

Q: Are there packaging differences between these parts?

A: The RC6432F2940CS is supplied in standard packaging, while CRCW2512294RFKEGHP is supplied in Tape & Reel (TR) format. Both use the identical 2512 (6432 Metric) package case. Tape & Reel packaging is standard for automated assembly processes and does not affect component performance or compatibility.

Q: Does AEC-Q200 automotive qualification affect non-automotive applications?

A: No. AEC-Q200 qualification indicates enhanced reliability testing and quality standards. This certification does not restrict use in non-automotive applications; it only confirms the part meets automotive industry requirements. Non-automotive designs benefit from the additional quality assurance.

Q: Are the moisture sensitivity levels equivalent?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture bake-out requirements. Handling and storage procedures are identical.

Q: What is the impact of the ±100ppm/°C temperature coefficient?

A: Both parts maintain identical temperature coefficient performance. At the operating temperature extremes (-55°C to 155°C), resistance drift remains within ±1% tolerance specification, ensuring stable circuit performance across the full temperature range.