RC6432F5231CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F5231CS is a 5.23 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 the temperature range of -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently in active production status with 945 units available in inventory.

Substitute parts become necessary when the primary manufacturer experiences supply constraints, when design requirements mandate specific certifications such as automotive qualification, or when alternative packaging formats better suit manufacturing processes. The ERJ-1TNF5231U represents the primary equivalent option, though it carries a "Not For New Designs" status from Panasonic.

Substiute Parts

RC6432F5231CS

Samsung Electro-MechanicsIn Stock: 1035RC6432F5231CS Datasheet

Current PartRFQ

ERJ-1TNF5231U

Panasonic Electronic ComponentsIn Stock: 4413ERJ-1TNF5231U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F5231CS is determined by strict alignment with the following parameters:

Critical Parameters (Must Match Exactly):

• Resistance value: 5.23 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package format: 2512 (6432 Metric)

Important Parameters (Must Be Equal or Better):

• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C or better
• Operating temperature range: Must encompass -55°C to 155°C minimum
• Moisture sensitivity: MSL 1 or equivalent
• RoHS compliance: ROHS3 or equivalent

The ERJ-1TNF5231U from Panasonic meets all critical and important parameters. Dimensional variations (length 6.40mm vs 6.30mm, height 0.70mm vs 0.66mm) remain within standard PCB design tolerances for 2512 package footprints. The addition of AEC-Q200 automotive qualification in the Panasonic part represents enhanced reliability certification without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs: The RC6432F5231CS from Samsung Electro-Mechanics is the primary selection. The part maintains active product status, ensuring long-term availability and consistent manufacturing processes. With 945 units in current inventory, supply continuity is established.

For Automotive or High-Reliability Applications: The ERJ-1TNF5231U from Panasonic provides AEC-Q200 automotive qualification, meeting enhanced reliability standards for automotive-grade circuits. This certification adds qualification value for applications requiring automotive-level component validation. However, the "Not For New Designs" status indicates Panasonic is transitioning this part. Use this substitute only when automotive qualification is a mandatory requirement and Samsung alternatives lack this certification.

For Supply Contingency: The ERJ-1TNF5231U serves as a qualified backup when RC6432F5231CS availability is constrained. The 4361 units in Panasonic inventory provide substantial supply depth. Dimensional variations (6.40mm length vs 6.30mm, 0.70mm height vs 0.66mm) are within standard 2512 package design margins and do not require PCB layout modifications.

Compliance Verification: Both parts satisfy ROHS3 compliance and REACH unaffected status. MSL 1 rating on both parts eliminates moisture sensitivity concerns for standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF5231U directly replace RC6432F5231CS on existing PCBs?

A: Yes. Both parts use the 2512 (6432 Metric) package with identical footprint specifications. Dimensional variations (length 6.40mm vs 6.30mm, height 0.70mm vs 0.66mm) fall within standard PCB design tolerances for this package class and require no layout modifications.

Q: What is the significance of the "Not For New Designs" status on the Panasonic part?

A: This designation indicates Panasonic is discontinuing the ERJ-1TNF5231U for new product development. The part remains available for existing designs and supply contingency but should not be selected as the primary component for new designs. The Samsung RC6432F5231CS, with active status, is the preferred choice for new applications.

Q: Are the electrical characteristics identical between these parts?

A: Yes. Both parts specify 5.23 kOhms ±1% resistance, 1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Electrical performance in circuit applications is equivalent.

Q: Does the AEC-Q200 certification on the Panasonic part affect compatibility?

A: No. AEC-Q200 is an additional qualification that enhances reliability documentation. It does not alter electrical or mechanical compatibility. The Panasonic part remains a direct functional equivalent with added automotive-grade validation.

Q: What packaging format is supplied for each part?

A: The Samsung RC6432F5231CS is supplied in standard packaging format. The Panasonic ERJ-1TNF5231U is supplied in Tape & Reel (TR) format, which is standard for high-volume manufacturing processes and does not affect component performance.

Q: Are there any thermal performance differences between these parts?

A: No. Both parts are rated for 1W power dissipation with identical temperature coefficients (±100ppm/°C) and operating ranges (-55°C to 155°C). Thermal performance is equivalent.

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

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Components can be stored indefinitely without desiccant packaging or time-limited shelf life concerns. This simplifies inventory management and supply chain handling.