RC6432F123CS Equivalent & Substitute Parts

Part Overview

The RC6432F123CS is a 12 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component operates across a temperature range of -55°C to 155°C and is ROHS3 compliant. The part is currently in active production status with 904 units available in inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package category, allowing for direct functional replacement in circuit designs.

Key Parameters

Parameter	Value
Resistance	12 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 RC6432F123CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Resistance value: 12 kOhms
Tolerance: ±1%
Power rating: 1W
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C

Mechanical Specifications:

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

Compliance Requirements:

RoHS3 compliance
Moisture Sensitivity Level 1

Substitute parts RC2512FK-0712KL (YAGEO) and ERJ-1TNF1202U (Panasonic Electronic Components) meet all electrical and mechanical equivalence criteria. Dimensional variations within the 2512 package specification do not preclude substitution. The ERJ-1TNF1202U carries additional AEC-Q200 automotive qualification and is designated as Not For New Designs.

Parameter Comparison

Parameter	RC6432F123CS (Samsung)	RC2512FK-0712KL (YAGEO)	ERJ-1TNF1202U (Panasonic)
Resistance	12 kOhms	12 kOhms	12 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)	0.250" x 0.122" (6.35mm x 3.10mm)	0.252" x 0.126" (6.40mm x 3.20mm)
Height - Seated (Max)	0.026" (0.66mm)	0.026" (0.65mm)	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)
Product Status	Active	Active	Not For New Designs

Engineering Selection Recommendations

RC2512FK-0712KL (YAGEO) is the primary direct substitute for RC6432F123CS. Both parts maintain active production status and are functionally equivalent across all electrical and mechanical parameters. The YAGEO part is supplied in Tape & Reel packaging with 8329 units in inventory, providing supply continuity.

ERJ-1TNF1202U (Panasonic Electronic Components) is a functional equivalent with additional AEC-Q200 automotive qualification. This part is designated as Not For New Designs, indicating it is maintained for legacy applications only. Selection of this part is appropriate only for existing designs requiring automotive-grade components or when legacy part continuity is mandated.

For new circuit designs, RC2512FK-0712KL is the recommended substitute. For automotive or legacy applications, ERJ-1TNF1202U remains functionally compatible.

Frequently Asked Questions (FAQ)

Q: Can RC2512FK-0712KL directly replace RC6432F123CS in existing designs?

A: Yes. RC2512FK-0712KL meets all electrical specifications (12 kOhms ±1%, 1W, ±100ppm/°C) and mechanical requirements (2512 package, 2 terminations). Dimensional variations (length 6.35mm vs. 6.30mm, width 3.10mm vs. 3.20mm, height 0.65mm vs. 0.66mm) remain within 2512 package tolerances and do not affect circuit performance or PCB layout compatibility.

Q: What is the difference between RC2512FK-0712KL and ERJ-1TNF1202U?

A: Both parts are electrically and mechanically equivalent. ERJ-1TNF1202U carries AEC-Q200 automotive qualification and is designated Not For New Designs. RC2512FK-0712KL is in active production. Selection depends on application requirements: use RC2512FK-0712KL for standard applications and new designs; use ERJ-1TNF1202U only for automotive legacy applications.

Q: Are there packaging differences between these substitutes?

A: RC6432F123CS is supplied in standard packaging. RC2512FK-0712KL is supplied in Tape & Reel (TR) format. ERJ-1TNF1202U is supplied in Tape & Reel (TR) format. Tape & Reel packaging is compatible with automated assembly processes and does not affect component performance.

Q: Do dimensional variations affect PCB layout?

A: No. All three parts conform to the 2512 (6432 Metric) package specification. Dimensional variations (length 6.30-6.40mm, width 3.10-3.20mm, height 0.65-0.70mm) fall within standard package tolerances and are accommodated by PCB pad designs for this package category.

Q: Are all three parts RoHS3 compliant?

A: Yes. RC6432F123CS, RC2512FK-0712KL, and ERJ-1TNF1202U are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

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