RC6432F45R3CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F45R3CS is a 45.3 Ohm ±1% 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 is ROHS3 compliant. The part is currently in active production status with 1100 pieces available in inventory.

Equivalent and substitute parts are identified when applications require alternative sourcing due to inventory constraints, supply chain considerations, or specific certification requirements such as automotive AEC-Q200 qualification.

Substiute Parts

RC6432F45R3CS

Samsung Electro-MechanicsIn Stock: 1195RC6432F45R3CS Datasheet

Current PartRFQ

AC2512FK-0745R3L

YAGEOIn Stock: 8048AC2512FK-0745R3L Datasheet

UpgradeRFQ

ERJ-1TNF45R3U

Panasonic Electronic ComponentsIn Stock: 8261ERJ-1TNF45R3U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F45R3CS is determined by strict alignment with the following electrical and mechanical parameters:

Mandatory Matching Parameters:

• Resistance: 45.3 Ohms (exact match required)
• Tolerance: ±1% (substitute must equal or exceed precision)
• Power Rating: 1W (substitute must equal or exceed)
• Package: 2512 (6432 Metric) (exact match required for PCB footprint compatibility)
• Composition: Thick Film (determines performance characteristics)
• Temperature Coefficient: ±100ppm/°C (substitute must equal or be lower)
• Operating Temperature Range: -55°C ~ 155°C (substitute must meet or exceed)
• Moisture Sensitivity: MSL 1 (Unlimited) (substitute must equal or be lower)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

Acceptable Variations:

• Manufacturer identity (different suppliers permitted)
• Packaging format (Tape & Reel acceptable as alternative to standard packaging)
• Automotive certification (AEC-Q200 is an enhancement, not a requirement for substitution)
• Physical dimensions within tolerance (minor variations in length, width, and height within standard manufacturing tolerances)
• Product status (Active preferred; Not For New Designs acceptable for replacement applications only)

Parameter Comparison

Engineering Selection Recommendations

AC2512FK-0745R3L (YAGEO) - Upgrade Substitute

This part is the primary equivalent for the RC6432F45R3CS. All electrical parameters match exactly. The AC2512FK-0745R3L carries AEC-Q200 automotive qualification, which exceeds the base requirement and provides enhanced reliability documentation. The part is in active production with 7968 pieces in inventory. Physical dimensions fall within standard manufacturing tolerances for the 2512 package. This substitute is suitable for direct replacement in all applications where the original part is specified.

ERJ-1TNF45R3U (Panasonic) - Alternative Substitute

This part meets all mandatory electrical and mechanical parameters. The ERJ-1TNF45R3U carries AEC-Q200 automotive qualification. However, the product status is listed as "Not For New Designs," which restricts its use to replacement and legacy applications only. The height specification (0.028" / 0.70mm) is at the upper tolerance limit for the 2512 package. This substitute is acceptable for existing designs requiring component replacement but is not recommended for new product development.

Selection Criteria:

• For new designs: AC2512FK-0745R3L (YAGEO)
• For replacement applications: AC2512FK-0745R3L (YAGEO) or ERJ-1TNF45R3U (Panasonic)
• For automotive applications: AC2512FK-0745R3L (YAGEO) or ERJ-1TNF45R3U (Panasonic) due to AEC-Q200 certification

Frequently Asked Questions (FAQ)

Q: Can AC2512FK-0745R3L be used as a direct replacement for RC6432F45R3CS?

A: Yes. All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range) are identical. The 2512 package footprint is identical. Physical dimensions are within standard manufacturing tolerances. The part is in active production status.

Q: What is the difference between the three parts?

A: All three parts share identical electrical specifications: 45.3 Ohms ±1%, 1W, thick film, ±100ppm/°C, -55°C to 155°C operating range, and ROHS3 compliance. Differences exist in manufacturer identity, automotive certification status, and product lifecycle status. AC2512FK-0745R3L and ERJ-1TNF45R3U include AEC-Q200 automotive qualification. ERJ-1TNF45R3U is marked "Not For New Designs."

Q: Are there physical dimension differences that affect PCB assembly?

A: Physical dimensions vary slightly within standard 2512 package tolerances. RC6432F45R3CS measures 6.30mm x 3.20mm with 0.66mm height. AC2512FK-0745R3L measures 6.35mm x 3.10mm with 0.65mm height. ERJ-1TNF45R3U measures 6.40mm x 3.20mm with 0.70mm height. These variations are within standard manufacturing tolerances and do not affect PCB footprint compatibility or assembly processes.

Q: Why would I choose one substitute over another?

A: AC2512FK-0745R3L is the preferred choice for all applications due to active production status and AEC-Q200 certification. ERJ-1TNF45R3U is acceptable only for replacement applications in existing designs due to its "Not For New Designs" status. If automotive qualification is required, both AC2512FK-0745R3L and ERJ-1TNF45R3U meet this requirement.

Q: What does "Not For New Designs" mean for ERJ-1TNF45R3U?

A: This designation indicates that Panasonic has discontinued or is phasing out this part for new product development. The part remains available for existing applications and component replacement but should not be specified in new designs. AC2512FK-0745R3L should be selected for new product development.

Q: Are all three parts ROHS3 compliant?

A: Yes. RC6432F45R3CS, AC2512FK-0745R3L, and ERJ-1TNF45R3U are all ROHS3 compliant and REACH unaffected.

Q: What is the significance of AEC-Q200 certification?

A: AEC-Q200 is an automotive industry standard qualification that certifies component reliability under automotive operating conditions. AC2512FK-0745R3L and ERJ-1TNF45R3U carry this certification, which is beneficial for automotive applications but not required for general industrial use. The RC6432F45R3CS does not specify this certification.