RC6432F1181CS Equivalent & Substitute Parts

Part Overview

The RC6432F1181CS is a 1.18 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film resistor features moisture resistance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 617 units in current inventory stock. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when design requirements necessitate components from different manufacturers with equivalent electrical and mechanical specifications.

Substiute Parts

RC6432F1181CS

Samsung Electro-MechanicsIn Stock: 685RC6432F1181CS Datasheet

Current PartRFQ

CRCW25121K18FKEG

Vishay DaleIn Stock: 2793CRCW25121K18FKEG Datasheet

SimilarRFQ

RMCF2512FT1K18

Stackpole Electronics IncIn Stock: 4606RMCF2512FT1K18 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F1181CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 1.18 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters:

• Package type: 2512 (6432 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance Parameters:

• RoHS3 Compliant status
• Moisture Sensitivity Level 1

The two identified substitute parts—CRCW25121K18FKEG (Vishay Dale) and RMCF2512FT1K18 (Stackpole Electronics Inc)—meet all electrical and mechanical requirements. Both parts are manufactured to the same resistance, tolerance, power rating, and package specifications. Both maintain identical operating temperature ranges and temperature coefficients. Both achieve RoHS3 compliance and MSL 1 rating. The primary distinction between the main part and substitutes is the addition of AEC-Q200 automotive qualification in the substitute parts, which represents an enhanced reliability standard rather than a deviation from base specifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RC6432F1181CS, CRCW25121K18FKEG, and RMCF2512FT1K18—are Active status components with current inventory availability. Selection between these parts is based on sourcing availability and supply chain requirements rather than electrical or mechanical performance differences.

RC6432F1181CS (Samsung Electro-Mechanics): Primary specification part with moisture-resistant thick film construction. Suitable for general industrial applications requiring standard reliability.

CRCW25121K18FKEG (Vishay Dale): Includes AEC-Q200 automotive qualification. Appropriate for applications requiring automotive-grade reliability standards. Available in Cut Tape and Digi-Reel packaging options.

RMCF2512FT1K18 (Stackpole Electronics Inc): Includes AEC-Q200 automotive qualification. Appropriate for applications requiring automotive-grade reliability standards. Available in Tape & Reel packaging.

All three parts maintain identical electrical performance, temperature stability, and regulatory compliance (RoHS3, REACH Unaffected). Dimensional variations are minimal and within standard PCB assembly tolerances. Selection should be based on manufacturer availability, packaging format requirements, and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can CRCW25121K18FKEG or RMCF2512FT1K18 be used as direct replacements for RC6432F1181CS?

A: Yes. Both substitute parts meet all electrical and mechanical specifications. Resistance, tolerance, power rating, temperature coefficient, operating temperature range, package type, and compliance certifications are identical. The AEC-Q200 automotive qualification present in the substitute parts represents an additional quality standard that does not prevent their use in non-automotive applications.

Q: What is the significance of the AEC-Q200 rating on the substitute parts?

A: AEC-Q200 is an automotive industry reliability standard. Parts bearing this qualification have undergone additional testing and validation. In applications not requiring automotive qualification, AEC-Q200 parts function identically to non-qualified parts with the same base specifications.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The RC6432F1181CS and RMCF2512FT1K18 share identical length and width (6.30mm x 3.20mm). The CRCW25121K18FKEG width is 3.15mm versus 3.20mm for the others. Maximum seated heights range from 0.66mm to 0.70mm. These variations are within standard PCB assembly tolerances and do not affect board-level compatibility.

Q: What packaging options are available?

A: RC6432F1181CS is supplied in standard packaging. CRCW25121K18FKEG is available in Cut Tape (CT) and Digi-Reel formats. RMCF2512FT1K18 is supplied in Tape & Reel (TR) format. Packaging selection depends on assembly process requirements and volume needs.

Q: Are all three parts RoHS3 compliant?

A: Yes. RC6432F1181CS, CRCW25121K18FKEG, and RMCF2512FT1K18 are all ROHS3 Compliant with REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage or handling.