RC6432F48R7CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F48R7CS is a 48.7 Ohm ±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 -55°C to 155°C temperature range. The part is currently in active production status with 750 pieces available in stock.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Key Parameters

Parameter	Value	Specification Type
Resistance	48.7 Ohms	Electrical
Tolerance	±1%	Electrical
Power Rating	1W	Electrical
Temperature Coefficient	±100ppm/°C	Electrical
Operating Temperature Range	-55°C to 155°C	Thermal
Package / Case	2512 (6432 Metric)	Mechanical
Composition	Thick Film	Material
Moisture Sensitivity Level	1 (Unlimited)	Environmental
RoHS Status	ROHS3 Compliant	Compliance

Substitute Part Grouping Explanation

Substitute parts for the RC6432F48R7CS are qualified based on the following criteria:

Electrical Parameters (Must Match Exactly):

Resistance value: 48.7 Ohms
Tolerance: ±1%
Power rating: 1W
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match):

Package designation: 2512 (6432 Metric)
Number of terminations: 2
Physical dimensions within tolerance

Material & Composition (Must Match):

Thick film construction

Compliance & Environmental (Must Match):

RoHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)
REACH Unaffected status

Two substitute parts meet these criteria: CRCW251248R7FKEG (Vishay Dale) and ERJ-1TNF48R7U (Panasonic Electronic Components).

Parameter Comparison

Parameter	RC6432F48R7CS (Samsung)	CRCW251248R7FKEG (Vishay Dale)	ERJ-1TNF48R7U (Panasonic)
Resistance	48.7 Ohms	48.7 Ohms	48.7 Ohms
Tolerance	±1%	±1%	±1%
Power Rating	1W	1W	1W
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Package / Case	2512 (6432 Metric)	2512 (6432 Metric)	2512 (6432 Metric)
Composition	Thick Film	Thick Film	Thick Film
Length	0.248" (6.30mm)	0.248" (6.30mm)	0.252" (6.40mm)
Width	0.126" (3.20mm)	0.124" (3.15mm)	0.126" (3.20mm)
Height - Seated (Max)	0.026" (0.66mm)	0.028" (0.70mm)	0.028" (0.70mm)
Number of Terminations	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Not For New Designs

Engineering Selection Recommendations

CRCW251248R7FKEG (Vishay Dale) is the primary substitute for the RC6432F48R7CS. This part maintains active production status and carries AEC-Q200 automotive qualification. All electrical and mechanical parameters align with the original component. The CRCW series is widely used in automotive and industrial applications where reliability standards are stringent.

ERJ-1TNF48R7U (Panasonic Electronic Components) is a secondary substitute option. While all electrical specifications match the original part, this component carries a "Not For New Designs" product status designation. The ERJ-1TN series also includes AEC-Q200 automotive qualification. This part is suitable for legacy system maintenance and repair applications where existing inventory must be maintained, but should not be selected for new circuit designs.

Both substitutes are ROHS3 compliant and carry identical environmental ratings (MSL 1, REACH Unaffected). Selection between the primary and secondary substitute should be based on design phase (new vs. legacy) and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can CRCW251248R7FKEG be used as a direct replacement for RC6432F48R7CS?

A: Yes. The CRCW251248R7FKEG meets all electrical specifications (48.7 Ohms ±1%, 1W, ±100ppm/°C, -55°C to 155°C operating range) and is packaged in the 2512 (6432 Metric) form factor. Physical dimensions are within acceptable tolerance for PCB footprint compatibility. Both parts are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the two substitute parts?

A: The primary difference is product status. CRCW251248R7FKEG (Vishay Dale) is in active production, while ERJ-1TNF48R7U (Panasonic) is designated "Not For New Designs." Both parts share identical electrical specifications and 2512 package designation. Minor dimensional variations exist: ERJ-1TNF48R7U has a maximum length of 0.252" (6.40mm) compared to 0.248" (6.30mm) for the other parts.

Q: Are there packaging differences between these parts?

A: The RC6432F48R7CS is supplied in standard packaging, while both CRCW251248R7FKEG and ERJ-1TNF48R7U are supplied in Tape & Reel (TR) format. This difference affects handling and assembly processes but does not impact electrical or mechanical compatibility.

Q: Why should ERJ-1TNF48R7U not be used in new designs?

A: The "Not For New Designs" status indicates that Panasonic has designated this part for legacy support only. New circuit designs should utilize CRCW251248R7FKEG or the original RC6432F48R7CS to ensure long-term supply chain stability and manufacturer support.

Q: Do all three parts meet automotive qualification standards?

A: The RC6432F48R7CS carries moisture resistance features suitable for industrial applications. Both CRCW251248R7FKEG and ERJ-1TNF48R7U include explicit AEC-Q200 automotive qualification ratings, making them suitable for automotive-grade applications where the original part may not be specified.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity limitations. These parts do not require special moisture-controlled storage or handling procedures and can be stored under standard warehouse conditions indefinitely without degradation.

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