RC6432F4994CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F4994CS is a 4.99 MOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component operates across the temperature range of -55°C to 155°C and maintains ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

The part is currently in active production status with 938 pieces available in new original inventory. Equivalent and substitute parts may be required due to supply chain considerations, inventory availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RC6432F4994CS

Samsung Electro-MechanicsIn Stock: 972RC6432F4994CS Datasheet

Current PartRFQ

CRCW25124M99FKEG

Vishay DaleIn Stock: 5018CRCW25124M99FKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC6432F4994CS is permissible with components that maintain identical electrical specifications and mechanical compatibility. The critical parameters determining substitutability are:

• Resistance Value: 4.99 MOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 1W (exact match required)
• Package Format: 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)

The CRCW25124M99FKEG from Vishay Dale meets all these criteria and qualifies as a direct electrical and mechanical substitute. Both components share identical resistance, tolerance, power rating, package dimensions, and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the RC6432F4994CS and CRCW25124M99FKEG are active production components with full ROHS3 compliance and unlimited moisture sensitivity ratings. Selection between these parts should be based on:

RC6432F4994CS (Samsung Electro-Mechanics): Select when Samsung supply chain preference or existing qualification exists. Current inventory: 938 pieces.

CRCW25124M99FKEG (Vishay Dale): Select when Vishay supply chain preference exists or when automotive-grade AEC-Q200 qualification is required. Current inventory: 4931 pieces. This part includes automotive AEC-Q200 rating, providing additional qualification for automotive applications.

Both components are electrically and mechanically interchangeable within the specified parameters. Dimensional variations (width: 0.126" vs 0.124"; height: 0.026" vs 0.028") remain within standard PCB layout tolerances for 2512 package footprints.

Frequently Asked Questions (FAQ)

Q: Can CRCW25124M99FKEG replace RC6432F4994CS in existing designs?

A: Yes. Both components share identical electrical specifications (4.99 MOhms, ±1%, 1W) and operate within the same temperature range (-55°C ~ 155°C). Package dimensions are equivalent for standard 2512 footprints. Dimensional tolerances (width and height variations) fall within acceptable PCB layout margins.

Q: What is the significance of AEC-Q200 rating on the Vishay part?

A: AEC-Q200 is an automotive qualification standard. The CRCW25124M99FKEG carries this certification, making it suitable for automotive applications requiring this qualification. The Samsung RC6432F4994CS does not list this certification.

Q: Are there any thermal performance differences?

A: No. Both components specify identical temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C). Thermal performance is equivalent.

Q: What are the inventory considerations?

A: RC6432F4994CS has 938 pieces in stock. CRCW25124M99FKEG has 4931 pieces in stock. Supply availability may influence selection timing.

Q: Are both parts RoHS compliant?

A: Yes. Both RC6432F4994CS and CRCW25124M99FKEG are ROHS3 compliant with unlimited moisture sensitivity (MSL 1).

Q: Do package dimensions require PCB layout changes?

A: No. Dimensional variations between the two parts (width: 0.002" difference; height: 0.002" difference) are within standard 2512 package tolerances and do not require PCB footprint modifications.