RC6432F4993CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F4993CS is a 499 kOhms ±1% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active product status with moisture resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional interchangeability in circuit applications.

Substiute Parts

RC6432F4993CS

Samsung Electro-MechanicsIn Stock: 932RC6432F4993CS Datasheet

Current PartRFQ

CRCW2512499KFKEG

Vishay DaleIn Stock: 4763CRCW2512499KFKEG Datasheet

SimilarRFQ

RMCF2512FT499K

Stackpole Electronics IncIn Stock: 53698RMCF2512FT499K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F4993CS are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 499 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package type: 2512 (6432 Metric)
• Number of terminations: 2
• Physical dimensions compatible with 2512 footprint

Composition & Construction:

• Thick film technology

Compliance & Environmental:

• RoHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the RC6432F4993CS in standard circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RC6432F4993CS (Samsung Electro-Mechanics), CRCW2512499KFKEG (Vishay Dale), and RMCF2512FT499K (Stackpole Electronics Inc)—are Active status components with full ROHS3 compliance and MSL 1 rating. They share identical electrical specifications and are mechanically compatible within the 2512 package footprint.

The CRCW2512499KFKEG and RMCF2512FT499K both carry AEC-Q200 automotive qualification, which provides additional reliability assurance for applications requiring automotive-grade components. The RC6432F4993CS features moisture resistant characteristics as a primary specification.

Selection between these parts should be based on supply chain availability, packaging format requirements (Cut Tape & Digi-Reel for Vishay; Tape & Reel for Stackpole), and application-specific compliance needs. All parts are suitable for direct substitution in standard industrial and commercial applications operating within the specified temperature range.

Frequently Asked Questions (FAQ)

Q: Can CRCW2512499KFKEG replace RC6432F4993CS directly?

A: Yes. Both parts share identical electrical parameters (499 kOhms, ±1%, 1W, ±100ppm/°C, -55°C ~ 155°C), composition (thick film), and package type (2512). Physical dimensions are compatible within standard PCB assembly tolerances. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the three substitute options?

A: The primary differences are manufacturer identity and packaging format. CRCW2512499KFKEG is supplied in Cut Tape & Digi-Reel format by Vishay Dale. RMCF2512FT499K is supplied in Tape & Reel format by Stackpole Electronics Inc. Both Vishay and Stackpole parts include AEC-Q200 automotive qualification. The RC6432F4993CS emphasizes moisture resistant characteristics. All three are electrically and mechanically equivalent.

Q: Are there dimensional compatibility concerns?

A: Dimensional variations are minimal. The RC6432F4993CS and RMCF2512FT499K share identical length and width (0.248" x 0.126" / 6.30mm x 3.20mm). The CRCW2512499KFKEG width is 0.124" (3.15mm), a 0.01mm difference. Height variations range from 0.026" to 0.028" (0.66mm to 0.70mm). These differences fall within standard PCB assembly and reflow process tolerances and do not affect functional interchangeability.

Q: Which part should be selected for automotive applications?

A: Both CRCW2512499KFKEG and RMCF2512FT499K carry AEC-Q200 qualification and are suitable for automotive applications. Selection between these two depends on packaging preference and supply availability.

Q: Are all parts RoHS compliant?

A: Yes. All three parts—RC6432F4993CS, CRCW2512499KFKEG, and RMCF2512FT499K—are ROHS3 compliant with REACH Unaffected status.

Q: What does MSL 1 (Unlimited) mean for these resistors?

A: MSL 1 (Unlimited) indicates the lowest moisture sensitivity level. These components do not require special moisture control during storage, handling, or assembly and have unlimited shelf life under normal conditions.