RC6432F124CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F124CS is a 120 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant. The part is currently in active production status with 743 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and environmental ratings to ensure direct circuit board compatibility.

Substiute Parts

RC6432F124CS

Samsung Electro-MechanicsIn Stock: 770RC6432F124CS Datasheet

Current PartRFQ

RC2512FK-07120KL

YAGEOIn Stock: 6485RC2512FK-07120KL Datasheet

DirectRFQ

ERJ-1TNF1203U

Panasonic Electronic ComponentsIn Stock: 5206ERJ-1TNF1203U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F124CS are classified based on strict electrical and mechanical parameter matching:

Direct Substitutes share all critical parameters: 120 kOhms resistance, ±1% tolerance, 1W power rating, 2512 package, thick film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, moisture resistance, ROHS3 compliance, and MSL 1 rating.

Similar Substitutes match all critical electrical and thermal parameters but may differ in specific mechanical dimensions, packaging format, or product lifecycle status. These parts maintain functional equivalence within the specified operating envelope.

The following parameters determine substitution eligibility:

• Resistance value: 120 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Package: 2512 (6432 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature: -55°C ~ 155°C (exact match required)
• Composition: Thick Film (exact match required)
• RoHS compliance: ROHS3 (exact match required)

Parameter Comparison

Engineering Selection Recommendations

RC2512FK-07120KL (YAGEO) is the primary direct substitute for RC6432F124CS. Both parts are in active production status, share identical electrical specifications, and maintain full ROHS3 compliance. Dimensional variations are within standard manufacturing tolerances for the 2512 package class. This part is available in Tape & Reel packaging format, suitable for automated assembly processes.

ERJ-1TNF1203U (Panasonic) is classified as a similar substitute with full electrical and thermal parameter equivalence. However, this part carries a "Not For New Designs" product status, indicating it is in end-of-life phase. The Panasonic part features automotive AEC-Q200 qualification rather than general moisture resistance designation. Height-seated maximum is 0.028" (0.70mm), which is 0.002" greater than the Samsung reference part. This part should be selected only when automotive-grade qualification is a specific design requirement and new design status is not a constraint.

Selection between RC2512FK-07120KL and ERJ-1TNF1203U depends on:

• Production lifecycle requirements (active vs. end-of-life status)
• Automotive qualification necessity
• Packaging format compatibility with assembly equipment
• Inventory availability and lead time considerations

Frequently Asked Questions (FAQ)

Q: Can RC2512FK-07120KL be used as a direct replacement for RC6432F124CS in existing designs?

A: Yes. Both parts share identical resistance (120 kOhms), tolerance (±1%), power rating (1W), package (2512), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and RoHS3 compliance. Dimensional differences are within standard 2512 package tolerances and do not affect circuit board layout or thermal performance.

Q: Why is ERJ-1TNF1203U marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life phase and Panasonic is not recommending it for new circuit designs. Existing designs using this part may continue to source it during the transition period, but new designs should select from active-status alternatives such as RC2512FK-07120KL.

Q: What is the difference between "Moisture Resistant" and "Automotive AEC-Q200" features?

A: Moisture Resistant is a general environmental protection feature. Automotive AEC-Q200 is a specific qualification standard for automotive-grade components, requiring additional testing and reliability validation for automotive applications. ERJ-1TNF1203U carries AEC-Q200 qualification; RC6432F124CS and RC2512FK-07120KL carry moisture resistance designation. Selection depends on application requirements.

Q: Are there packaging format differences between these parts?

A: RC6432F124CS is supplied in bulk packaging. RC2512FK-07120KL and ERJ-1TNF1203U are supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated pick-and-place assembly. Bulk packaging requires manual handling or custom reel preparation. Verify packaging compatibility with your assembly process before selection.

Q: Do dimensional variations between these parts affect PCB layout?

A: Dimensional variations are minimal and within standard 2512 package tolerances. Length ranges from 6.30mm to 6.40mm; width ranges from 3.10mm to 3.20mm; height ranges from 0.65mm to 0.70mm. These variations do not require PCB layout modifications for standard 2512 footprints. Verify with your PCB design tool if tight spacing constraints exist.

Q: Are all three parts ROHS3 compliant?

A: Yes. RC6432F124CS, RC2512FK-07120KL, and ERJ-1TNF1203U are all ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.