RC6432J304CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432J304CS is a 300 kOhms ±5% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional replacement in circuit applications.

Substiute Parts

RC6432J304CS

Samsung Electro-MechanicsIn Stock: 867RC6432J304CS Datasheet

Current PartRFQ

RC2512JK-07300KL

YAGEOIn Stock: 8850RC2512JK-07300KL Datasheet

DirectRFQ

AC2512FK-07300KL

YAGEOIn Stock: 1940AC2512FK-07300KL Datasheet

UpgradeRFQ

ERJ-1TNF3003U

Panasonic Electronic ComponentsIn Stock: 14964ERJ-1TNF3003U Datasheet

SimilarRFQ

RMCF2512FT300K

Stackpole Electronics IncIn Stock: 4954RMCF2512FT300K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution relationships for the RC6432J304CS are established based on the following critical parameters:

Electrical Compatibility Criteria:

• Resistance value: 300 kOhms (exact match required)
• Power rating: 1W (minimum requirement)
• Temperature coefficient: ±100ppm/°C (standard for thick film resistors in this category)
• Operating temperature range: -55°C ~ 155°C (full range coverage)

Mechanical Compatibility Criteria:

• Package type: 2512 (6432 Metric) footprint (exact match required for PCB assembly)
• Number of terminations: 2 (standard for chip resistors)
• Height seated maximum: 0.026" to 0.028" (within acceptable assembly tolerance)

Environmental & Compliance Criteria:

• Moisture Sensitivity Level: 1 (Unlimited) for all substitutes
• RoHS Status: ROHS3 Compliant for all substitutes
• REACH Status: REACH Unaffected for all substitutes

Substitute parts are categorized as follows:

Direct Equivalent: RC2512JK-07300KL (YAGEO) maintains identical tolerance (±5%) and moisture-resistant features.

Upgrade Options: AC2512FK-07300KL (YAGEO) and RMCF2512FT300K (Stackpole Electronics Inc) provide improved tolerance (±1%) and automotive AEC-Q200 qualification.

Alternative Option: ERJ-1TNF3003U (Panasonic Electronic Components) offers ±1% tolerance and AEC-Q200 rating with Not For New Designs status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): RC2512JK-07300KL (YAGEO) is the direct equivalent substitute. This part maintains the ±5% tolerance and moisture-resistant thick film construction of the original RC6432J304CS. Both components share identical electrical performance characteristics and environmental ratings. Selection of this substitute is appropriate when tolerance and moisture resistance are primary design requirements and automotive qualification is not necessary.

For Upgraded Performance (Improved Tolerance): AC2512FK-07300KL (YAGEO) and RMCF2512FT300K (Stackpole Electronics Inc) provide ±1% tolerance improvement over the original ±5% specification. Both parts carry automotive AEC-Q200 qualification and maintain full compliance with ROHS3 and REACH requirements. These upgrades are suitable for applications requiring tighter resistance tolerance and automotive-grade reliability. Both parts are Active status products with current manufacturing support.

For Alternative Selection (Legacy Consideration): ERJ-1TNF3003U (Panasonic Electronic Components) offers ±1% tolerance and AEC-Q200 automotive qualification. However, this part carries Not For New Designs product status, indicating discontinued or limited future availability. This substitute is applicable only for maintenance, repair, or replacement of existing assemblies where design continuity is required.

Compliance Verification: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Dimensional variations within the 2512 package footprint (length 0.248" to 0.252", height 0.026" to 0.028") are within standard PCB assembly tolerances and do not require design modification.

Frequently Asked Questions (FAQ)

Q: Can RC2512JK-07300KL replace RC6432J304CS in all applications?

A: RC2512JK-07300KL is a direct equivalent substitute. Both parts share identical resistance (300 kOhms), tolerance (±5%), power rating (1W), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and moisture-resistant thick film composition. The 2512 package footprint is identical. Substitution is valid for all applications where the original part was specified.

Q: What is the difference between the ±5% tolerance original and the ±1% tolerance substitutes?

A: The original RC6432J304CS specifies ±5% tolerance, meaning the actual resistance value can vary within 285 kOhms to 315 kOhms. The substitute parts AC2512FK-07300KL, ERJ-1TNF3003U, and RMCF2512FT300K specify ±1% tolerance, resulting in actual values between 297 kOhms to 303 kOhms. The ±1% tolerance substitutes provide improved precision and are suitable for applications requiring tighter resistance control. Selection depends on circuit design requirements.

Q: Are the dimensional differences between substitute parts significant?

A: Dimensional variations exist within acceptable limits. The original RC6432J304CS measures 0.248" L x 0.126" W with 0.026" maximum height. Substitute parts range from 0.248" to 0.252" length, 0.122" to 0.126" width, and 0.026" to 0.028" height. These variations fall within standard 2512 package tolerances and PCB assembly specifications. No design modification is required for substitution.

Q: Should I use the automotive AEC-Q200 qualified substitutes for non-automotive applications?

A: Automotive AEC-Q200 qualification indicates enhanced reliability testing and quality assurance. AC2512FK-07300KL, ERJ-1TNF3003U, and RMCF2512FT300K all carry this rating. Using AEC-Q200 qualified parts in non-automotive applications provides additional quality assurance without design penalty. Selection is based on application requirements and cost considerations.

Q: Why is ERJ-1TNF3003U marked as Not For New Designs?

A: ERJ-1TNF3003U carries Not For New Designs product status, indicating that Panasonic has discontinued or limited this part for new design applications. This status does not affect functionality or performance. The part remains suitable for maintenance, repair, or replacement of existing assemblies. For new designs, AC2512FK-07300KL (YAGEO) or RMCF2512FT300K (Stackpole Electronics Inc) are recommended as they maintain Active product status with ongoing manufacturing support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (RC2512JK-07300KL, AC2512FK-07300KL, ERJ-1TNF3003U, and RMCF2512FT300K) are ROHS3 compliant and REACH Unaffected. All parts carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original RC6432J304CS environmental specifications.

Q: Can I mix different substitute parts in the same assembly?

A: Yes. All substitute parts are electrically and mechanically compatible with the original RC6432J304CS and with each other. They share identical resistance values, power ratings, temperature coefficients, operating temperature ranges, and 2512 package footprints. Mixing different manufacturers or tolerance grades in the same assembly is permissible from a functional standpoint. Design documentation should specify which part numbers are acceptable for production.