RC6432F4320CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F4320CS is a 432 Ohm ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component is designed for general-purpose applications requiring precision resistive elements with moderate power dissipation. The part maintains Active product status with 764 units currently in stock.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

RC6432F4320CS

Samsung Electro-MechanicsIn Stock: 845RC6432F4320CS Datasheet

Current PartRFQ

ERJ-1TNF4320U

Panasonic Electronic ComponentsIn Stock: 1015ERJ-1TNF4320U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F4320CS is determined by strict alignment of the following parameters:

Mandatory Matching Criteria:

• Resistance value: 432 Ohms (exact match required)
• Tolerance: ±1% (substitute must achieve this precision)
• Power rating: 1W (minimum; higher ratings acceptable)
• Package: 2512 (6432 Metric) form factor
• Composition: Thick film technology
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C (minimum coverage)
• RoHS3 compliance status
• MSL rating: 1 (Unlimited)

Acceptable Variations:

• Physical dimensions may vary within ±0.004" (0.10mm) for length and width, provided PCB footprint compatibility is maintained
• Height variation acceptable within ±0.002" (0.05mm)
• Packaging format (bulk vs. tape & reel) does not affect electrical substitution
• Product status differences (Active vs. Not For New Designs) noted but do not prevent functional substitution
• Additional certifications (e.g., AEC-Q200) represent enhanced qualification, not substitution barriers

Parameter Comparison

Engineering Selection Recommendations

RC6432F4320CS (Samsung Electro-Mechanics) - Primary Selection

The RC6432F4320CS maintains Active product status, indicating ongoing manufacturer support and availability. This component is suitable for new designs and applications requiring long-term supply continuity. The moisture-resistant feature provides environmental protection for general industrial and consumer applications. Current inventory of 764 units supports immediate procurement requirements.

ERJ-1TNF4320U (Panasonic Electronic Components) - Functional Equivalent

The ERJ-1TNF4320U provides electrical and mechanical equivalence to the RC6432F4320CS with all critical parameters matching exactly. However, this part carries "Not For New Designs" status, indicating Panasonic has discontinued active development and may limit future availability. The component includes AEC-Q200 automotive qualification, which exceeds the moisture-resistant specification of the Samsung part, making it suitable for automotive and high-reliability applications where such certification is required or beneficial.

Selection Criteria:

• For new product designs with standard reliability requirements: Use RC6432F4320CS (Active status, assured supply)
• For automotive or AEC-Q200 qualified applications: ERJ-1TNF4320U provides enhanced qualification, though product status should be verified with supplier for long-term availability
• For legacy design maintenance or replacement: Either part functions identically; selection depends on current inventory and supply chain constraints

Both parts comply with ROHS3 and REACH requirements, carry MSL 1 rating, and operate across the full -55°C to 155°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF4320U replace RC6432F4320CS in existing designs?

A: Yes. All electrical parameters (resistance, tolerance, power rating, temperature coefficient) and mechanical dimensions (2512 package) are equivalent. The 0.004" length difference and 0.002" height difference fall within standard PCB design tolerances and do not affect functionality or footprint compatibility.

Q: What does "Not For New Designs" mean for the Panasonic part?

A: This status indicates Panasonic has transitioned the ERJ-1TNF4320U to end-of-life phase and is not recommending it for new product development. However, the part remains functionally equivalent and can be used for replacement or maintenance of existing designs. Verify current availability with your supplier before committing to this part for production quantities.

Q: Are there differences in reliability between these two parts?

A: Both parts meet ROHS3 compliance and carry MSL 1 (Unlimited) moisture sensitivity ratings. The Panasonic ERJ-1TNF4320U includes AEC-Q200 automotive qualification, which represents additional testing and validation beyond the Samsung part's moisture-resistant specification. For standard industrial applications, both parts are equivalent. For automotive or high-reliability applications, the AEC-Q200 qualification of the Panasonic part may be advantageous.

Q: Can I mix these parts in the same production batch?

A: Yes. Both parts are electrically and mechanically equivalent. However, best practice recommends maintaining consistent sourcing within a single production run to simplify traceability and quality documentation. If mixing is necessary, ensure your quality control procedures account for different manufacturers and verify no design-specific requirements mandate a single source.

Q: What is the significance of the ±100ppm/°C temperature coefficient?

A: This specification defines how the resistance value changes with temperature. At 100°C above the reference temperature (typically 25°C), the resistance will drift by approximately ±1% (100ppm × 100°C = 10,000ppm = 1%). Both parts share this specification, ensuring predictable performance across the -55°C to 155°C operating range.

Q: Does packaging format (bulk vs. tape & reel) affect substitution?

A: No. Packaging format affects logistics and handling but not electrical or mechanical function. The RC6432F4320CS is supplied in standard packaging, while the ERJ-1TNF4320U is available in Tape & Reel format. Both formats contain identical components; selection depends on your assembly process requirements and inventory management preferences.