RC6432F1373CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F1373CS is a 137 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 789 units available in stock.

Substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain constraints require alternative sourcing, or when design requirements permit equivalent components from qualified manufacturers. Substitutes must maintain electrical performance, mechanical compatibility, and regulatory compliance.

Substiute Parts

RC6432F1373CS

Samsung Electro-MechanicsIn Stock: 899RC6432F1373CS Datasheet

Current PartRFQ

ERJ-1TNF1373U

Panasonic Electronic ComponentsIn Stock: 1533ERJ-1TNF1373U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F1373CS is determined by strict alignment with the following parameters:

Electrical Parameters (Non-Negotiable):

• Resistance value must be 137 kOhms
• Tolerance must be ±1% or tighter
• Power rating must be 1W or greater
• Temperature coefficient must be ±100ppm/°C or better
• Operating temperature range must encompass -55°C to 155°C

Mechanical Parameters (Non-Negotiable):

• Package must be 2512 (6432 Metric)
• Composition must be thick film
• Number of terminations must be 2

Regulatory & Compliance Parameters (Required):

• RoHS3 compliance mandatory
• MSL rating must be 1 (Unlimited) or equivalent
• REACH unaffected status required

The substitute part ERJ-1TNF1373U meets all critical electrical, mechanical, and regulatory requirements. Dimensional variations within manufacturing tolerances do not preclude substitution when all functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (RC6432F1373CS): The RC6432F1373CS is the recommended choice for new designs and ongoing production. This part maintains active product status with Samsung Electro-Mechanics, ensuring long-term availability and supply chain stability. ROHS3 compliance and MSL 1 rating support standard manufacturing and storage protocols.

Substitute Part Selection (ERJ-1TNF1373U): The ERJ-1TNF1373U from Panasonic Electronic Components is electrically and mechanically equivalent to the primary part. All critical parameters—resistance, tolerance, power rating, package, temperature range, and composition—are identical. Both parts are ROHS3 compliant with MSL 1 ratings.

The ERJ-1TNF1373U carries "Not For New Designs" status, indicating Panasonic has transitioned this part to mature lifecycle management. This designation does not affect electrical performance or regulatory compliance. The part remains suitable for replacement, repair, and legacy system support where the RC6432F1373CS is unavailable.

Dimensional Considerations: Minor dimensional variations exist within standard manufacturing tolerances. The ERJ-1TNF1373U length is 0.252" (6.40mm) versus 0.248" (6.30mm) for the RC6432F1373CS, and height is 0.028" (0.70mm) versus 0.026" (0.66mm). These differences remain within PCB design clearance standards for 2512 package footprints and do not compromise mechanical fit or electrical function.

Compliance & Certification: Both parts satisfy ROHS3 requirements and REACH unaffected status. Automotive applications requiring AEC-Q200 qualification should note that the ERJ-1TNF1373U carries this certification while the RC6432F1373CS does not. For non-automotive applications, this distinction is not relevant.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF1373U replace RC6432F1373CS in existing designs?

A: Yes. The ERJ-1TNF1373U is electrically and mechanically equivalent. All critical parameters—137 kOhms ±1%, 1W power rating, 2512 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range—are identical. Dimensional variations are within standard manufacturing tolerances for this package class.

Q: What does "Not For New Designs" mean for the ERJ-1TNF1373U?

A: This status indicates Panasonic has classified the part as mature and is not actively promoting it for new product development. However, the part remains fully functional, compliant, and available for production. It is suitable for replacement, repair, and legacy system applications.

Q: Are there differences in reliability or failure rates between these parts?

A: Both parts are thick film chip resistors with identical electrical specifications and operating ranges. Failure rate data is not provided in the component specifications. Reliability performance depends on application conditions, thermal management, and manufacturing quality control, which are equivalent for both manufacturers' products.

Q: Does the dimensional difference affect PCB layout?

A: No. The dimensional variations (0.248" vs. 0.252" length; 0.026" vs. 0.028" height) are within standard 2512 package tolerances. PCB footprints designed for 2512 components accommodate both parts without modification.

Q: Which part should be selected for automotive applications?

A: For automotive applications requiring AEC-Q200 qualification, the ERJ-1TNF1373U is the appropriate choice. The RC6432F1373CS does not carry AEC-Q200 certification. For non-automotive applications, both parts are equivalent.

Q: Are both parts ROHS3 compliant?

A: Yes. Both RC6432F1373CS and ERJ-1TNF1373U are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the MSL rating and why does it matter?

A: Both parts have MSL 1 (Unlimited) rating, indicating they are not moisture-sensitive and require no special handling, storage, or baking procedures. Standard warehouse storage conditions are acceptable.

Q: Can these parts be used interchangeably in production?

A: Yes, provided supply chain and design documentation are updated to reflect the substitution. Both parts meet identical electrical and mechanical specifications. Inventory management should account for the different part numbers and manufacturers.