RC6432J430CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432J430CS is a 43 Ohms ±5% 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 maintains ROHS3 compliance with MSL 1 rating. The part is currently active in production with 1090 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, design optimization, and supply chain continuity.

Substiute Parts

RC6432J430CS

Samsung Electro-MechanicsIn Stock: 1103RC6432J430CS Datasheet

Current PartRFQ

RC2512JK-0743RL

YAGEOIn Stock: 5462RC2512JK-0743RL Datasheet

DirectRFQ

AC2512FK-0743RL

YAGEOIn Stock: 5790AC2512FK-0743RL Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432J430CS is determined by the following critical parameters:

Core Electrical Parameters:

• Resistance value: 43 Ohms (exact match required)
• Power rating: 1W (exact match required)
• Operating temperature range: -55°C ~ 155°C (minimum requirement)
• Temperature coefficient: ±100ppm/°C (maximum allowable drift)

Mechanical & Environmental Parameters:

• Package: 2512 (6432 Metric) footprint (exact match required for PCB compatibility)
• Composition: Thick film (material consistency)
• Moisture resistance: Required feature
• RoHS3 compliance: Required regulatory standard
• MSL 1 rating: Unlimited moisture sensitivity level

Tolerance Consideration:

• Original part: ±5% tolerance
• Direct equivalent: ±5% tolerance (RC2512JK-0743RL)
• Upgrade option: ±1% tolerance (AC2512FK-0743RL) provides improved accuracy with tighter tolerance specification

Two substitute parts meet these criteria: RC2512JK-0743RL (direct equivalent from YAGEO) and AC2512FK-0743RL (upgraded specification with ±1% tolerance and AEC-Q200 automotive qualification).

Parameter Comparison

Engineering Selection Recommendations

RC2512JK-0743RL (Direct Equivalent): This YAGEO part provides direct functional equivalence to the RC6432J430CS. Electrical specifications, package dimensions, and environmental ratings are identical. Both parts maintain ±5% tolerance, ±100ppm/°C temperature coefficient, and full ROHS3 compliance. Selection of this substitute is appropriate for applications requiring equivalent performance without tolerance upgrades. Higher inventory availability (5388 units) supports supply chain continuity.

AC2512FK-0743RL (Upgraded Specification): This YAGEO part offers improved tolerance specification (±1% versus ±5%) while maintaining all other electrical and environmental parameters. The addition of AEC-Q200 automotive qualification extends application scope to automotive-grade circuits. This upgrade is suitable for designs requiring tighter resistance accuracy or automotive compliance. Inventory availability (5732 units) is highest among all three options.

Selection Criteria:

• Use RC2512JK-0743RL for direct replacement with equivalent specifications
• Use AC2512FK-0743RL when improved tolerance accuracy or automotive qualification is required
• All three parts are ROHS3 compliant with MSL 1 rating and identical thermal operating range

Frequently Asked Questions (FAQ)

Q: Can RC2512JK-0743RL replace RC6432J430CS in existing designs? A: Yes. RC2512JK-0743RL is a direct equivalent with identical electrical specifications (43 Ohms ±5%, 1W), package footprint (2512), composition (thick film), and environmental ratings. No design modification is required.

Q: What is the difference between RC2512JK-0743RL and AC2512FK-0743RL? A: The primary difference is tolerance specification: RC2512JK-0743RL maintains ±5% tolerance matching the original part, while AC2512FK-0743RL provides ±1% tolerance for improved accuracy. AC2512FK-0743RL additionally carries AEC-Q200 automotive qualification. All other parameters are identical.

Q: Are the physical dimensions compatible across all three parts? A: Yes. All three parts use the 2512 (6432 Metric) package with compatible footprints. Dimensional variations are within acceptable PCB assembly tolerances: length 6.30-6.35mm, width 3.10-3.20mm, height 0.65-0.66mm.

Q: Which part should be selected for automotive applications? A: AC2512FK-0743RL is qualified to AEC-Q200 automotive standards. If automotive qualification is not required, RC2512JK-0743RL provides equivalent performance for non-automotive applications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. RC6432J430CS, RC2512JK-0743RL, and AC2512FK-0743RL are all ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating.

Q: What is the temperature coefficient specification for these parts? A: All three parts maintain ±100ppm/°C temperature coefficient across the -55°C to 155°C operating range, ensuring consistent thermal performance.

Q: Can AC2512FK-0743RL be used in applications originally designed for RC6432J430CS? A: Yes. AC2512FK-0743RL exceeds the original specification with tighter tolerance (±1% versus ±5%) and maintains all other electrical and environmental parameters. It is a direct upgrade suitable for any application using the original part.