RC6432F4022CS Equivalent & Substitute Parts

Part Overview

The RC6432F4022CS is a 40.2 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film resistor is designed for general-purpose applications requiring moisture resistance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 806 units currently in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate specific manufacturer certifications or packaging formats.

Key Parameters

Parameter	Value
Resistance	40.2 kOhms
Tolerance	±1%
Power Rating	1W
Package / Case	2512 (6432 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F4022CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 40.2 kOhms
Tolerance: ±1%
Power rating: 1W
Package type: 2512 (6432 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Termination count: 2

Acceptable Variations:

Packaging format (bulk vs. Tape & Reel)
Manufacturer-specific certifications (AEC-Q200)
Dimensional tolerances within supplier specifications
Moisture Sensitivity Level (MSL 1 is equivalent across all candidates)

The identified substitute parts CRCW251240K2FKEG (Vishay Dale) and RMCF2512FT40K2 (Stackpole Electronics Inc) meet all mandatory parameters and are therefore direct functional equivalents.

Parameter Comparison

Parameter	RC6432F4022CS (Samsung)	CRCW251240K2FKEG (Vishay Dale)	RMCF2512FT40K2 (Stackpole)
Resistance	40.2 kOhms	40.2 kOhms	40.2 kOhms
Tolerance	±1%	±1%	±1%
Power (Watts)	1W	1W	1W
Composition	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Package / Case	2512 (6432 Metric)	2512 (6432 Metric)	2512 (6432 Metric)
Size / Dimension (L x W)	0.248" x 0.126" (6.30mm x 3.20mm)	0.248" x 0.124" (6.30mm x 3.15mm)	0.248" x 0.126" (6.30mm x 3.20mm)
Height - Seated (Max)	0.026" (0.66mm)	0.028" (0.70mm)	0.028" (0.70mm)
Number of Terminations	2	2	2
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Certifications	Moisture Resistant	Automotive AEC-Q200	Automotive AEC-Q200

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance, confirming their suitability for current design implementations. The RC6432F4022CS (Samsung Electro-Mechanics) is the primary specification with 806 units in stock. The RMCF2512FT40K2 (Stackpole Electronics Inc) provides an equivalent substitute with 9,192 units available and includes AEC-Q200 automotive certification. The CRCW251240K2FKEG (Vishay Dale) offers the highest inventory availability at 11,539 units and also carries AEC-Q200 certification.

Dimensional variations exist in height and width tolerances. The RC6432F4022CS specifies a maximum seated height of 0.026" (0.66mm), while both substitute parts specify 0.028" (0.70mm). The width dimension for CRCW251240K2FKEG is 0.124" (3.15mm) compared to 0.126" (3.20mm) for the primary and Stackpole parts. These dimensional differences remain within standard PCB assembly tolerances for 2512 package components.

Selection between substitutes should be based on inventory availability, lead time requirements, and whether automotive-grade certification (AEC-Q200) is mandated by application specifications.

Frequently Asked Questions (FAQ)

Q: Can CRCW251240K2FKEG replace RC6432F4022CS in existing designs?

A: Yes. Both parts share identical electrical specifications: 40.2 kOhms ±1% resistance, 1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both are 2512 package thick film resistors with MSL 1 rating and ROHS3 compliance. The width dimension differs by 0.002" (0.05mm), which is within standard PCB assembly tolerances.

Q: What is the difference between the Samsung RC6432F4022CS and Stackpole RMCF2512FT40K2?

A: The electrical and thermal specifications are identical. The primary difference is manufacturer certification: RMCF2512FT40K2 includes AEC-Q200 automotive qualification, while RC6432F4022CS is specified as moisture resistant. Both are 2512 package components with equivalent performance characteristics.

Q: Are the dimensional differences between these parts significant?

A: The dimensional variations are minor. RC6432F4022CS and RMCF2512FT40K2 share identical length (0.248") and width (0.126") dimensions. CRCW251240K2FKEG has a width of 0.124", a 0.002" difference. Height specifications range from 0.026" to 0.028" maximum seated height. These tolerances are standard for 2512 package resistors and do not affect PCB layout or assembly compatibility.

Q: Which substitute part should be selected for automotive applications?

A: Both CRCW251240K2FKEG and RMCF2512FT40K2 carry AEC-Q200 certification, qualifying them for automotive use. If the original design specifies non-automotive grade components, either substitute remains electrically equivalent and functionally compatible.

Q: What is the inventory status for each part?

A: RC6432F4022CS (Samsung) has 806 units in stock. RMCF2512FT40K2 (Stackpole) has 9,192 units available. CRCW251240K2FKEG (Vishay Dale) has the highest availability at 11,539 units.

Q: Are all three parts ROHS3 compliant?

A: Yes. RC6432F4022CS, CRCW251240K2FKEG, and RMCF2512FT40K2 are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message