RC6432F6340CS Equivalent & Substitute Parts

Part Overview

The RC6432F6340CS is a 634 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 1097 units currently in stock.

Substitute parts become necessary when primary inventory is unavailable, when supply chain constraints affect lead times, or when design requirements permit alternative qualified manufacturers. The ERJ-1TNF6340U from Panasonic Electronic Components provides functional equivalence with identical electrical specifications, though it carries a "Not For New Designs" status and includes automotive AEC-Q200 qualification.

Substiute Parts

RC6432F6340CS

Samsung Electro-MechanicsIn Stock: 1126RC6432F6340CS Datasheet

Current PartRFQ

ERJ-1TNF6340U

Panasonic Electronic ComponentsIn Stock: 18822ERJ-1TNF6340U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F6340CS is determined by strict alignment with the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 634 Ohms (exact match required)
• Tolerance: ±1% (no deviation permitted)
• Power rating: 1W (thermal equivalence)
• Package designation: 2512 (6432 Metric) (PCB footprint compatibility)

Important Matching Parameters:

• Composition: Thick Film (electrical characteristics and frequency response)
• Temperature coefficient: ±100ppm/°C (temperature stability)
• Operating temperature range: -55°C ~ 155°C (environmental suitability)
• Moisture sensitivity level: 1 (Unlimited) (handling requirements)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

The ERJ-1TNF6340U meets all critical and important matching parameters. Physical dimensions show minor variations (0.252" L x 0.126" W versus 0.248" L x 0.126" W; height 0.028" versus 0.026"), which remain within standard PCB design tolerances for 2512 package footprints. The substitute carries automotive AEC-Q200 qualification, providing additional reliability assurance for demanding applications.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs: The RC6432F6340CS maintains Active product status and is the preferred selection for new circuit designs. With 1097 units in current inventory, this Samsung Electro-Mechanics component provides immediate availability and long-term supply continuity.

For Existing Designs Requiring Substitution: The ERJ-1TNF6340U from Panasonic Electronic Components qualifies as a direct functional substitute. All critical electrical parameters (resistance, tolerance, power rating, temperature coefficient) and mechanical parameters (2512 package, dimensions within tolerance) align with the primary part. The substitute carries "Not For New Designs" status, indicating it is suitable for legacy system support and field replacements but should not be selected for new product development.

The ERJ-1TNF6340U includes AEC-Q200 automotive qualification, which provides enhanced reliability assurance. This certification is beneficial for applications in automotive, industrial, or high-reliability environments, even when not explicitly required.

Packaging Consideration: The ERJ-1TNF6340U is supplied in Tape & Reel (TR) format, which differs from the primary part's unspecified packaging. Verify that your assembly process accommodates reel-fed components or confirm availability in alternative packaging formats.

Compliance Verification: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying current regulatory requirements for electronics manufacturing in regulated markets.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-1TNF6340U be used as a direct replacement for the RC6432F6340CS in existing circuit boards?

A: Yes. The ERJ-1TNF6340U meets all critical electrical specifications (634 Ohms ±1%, 1W power rating, ±100ppm/°C temperature coefficient) and is packaged in the identical 2512 (6432 Metric) footprint. Physical dimensions vary slightly (length 0.252" versus 0.248", height 0.028" versus 0.026") but remain within standard PCB design tolerances for this package class. Substitution is electrically and mechanically compatible.

Q: Why does the ERJ-1TNF6340U carry "Not For New Designs" status?

A: "Not For New Designs" indicates that Panasonic has designated this part for legacy support and field replacement applications only. New product development should prioritize the RC6432F6340CS or other actively supported alternatives. This status does not affect the part's technical performance or reliability in existing applications.

Q: What is the significance of AEC-Q200 qualification on the ERJ-1TNF6340U?

A: AEC-Q200 is an automotive industry standard qualification that certifies component reliability under demanding environmental and operational conditions. While the primary RC6432F6340CS does not list this certification, the ERJ-1TNF6340U's AEC-Q200 status provides additional assurance of quality and reliability. This qualification is valuable for applications in automotive, industrial control, and high-reliability environments.

Q: Are there packaging format differences between these parts?

A: Yes. The ERJ-1TNF6340U is supplied in Tape & Reel (TR) format, optimized for automated assembly processes. The RC6432F6340CS packaging format is not specified in the provided data. Confirm that your assembly equipment and processes support reel-fed components, or verify alternative packaging availability for the substitute part.

Q: Do both parts meet current regulatory compliance requirements?

A: Yes. Both the RC6432F6340CS and ERJ-1TNF6340U are ROHS3 Compliant and REACH Unaffected, satisfying current regulatory requirements for electronics manufacturing in regulated markets including the European Union and similar jurisdictions.

Q: What is Moisture Sensitivity Level 1, and why does it matter?

A: Moisture Sensitivity Level (MSL) 1 indicates "Unlimited" moisture sensitivity, meaning the component requires no special moisture control during storage, handling, or assembly. Both parts carry this designation, eliminating the need for dry-pack storage or baking procedures prior to soldering. This simplifies supply chain logistics and assembly processes.

Q: Can I use the ERJ-1TNF6340U in applications requiring long-term supply assurance?

A: The ERJ-1TNF6340U is designated for legacy support only and should not be selected for applications requiring long-term supply continuity. For new designs or applications requiring extended availability, the RC6432F6340CS (Active status) is the appropriate choice. For existing systems currently using the ERJ-1TNF6340U, plan transition strategies to the primary part or identify alternative long-term qualified substitutes.