RC6432F66R5CS Equivalent & Substitute Parts

Part Overview

The RC6432F66R5CS is a 66.5 Ohm ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component operates across the temperature range of -55°C to 155°C and is ROHS3 compliant. The part is currently in active production status with 1006 units available in inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the critical parameters: resistance value, tolerance, power rating, package type, and operating temperature range. The substitute listed below meets these criteria while offering alternative sourcing options.

Substiute Parts

RC6432F66R5CS

Samsung Electro-MechanicsIn Stock: 1047RC6432F66R5CS Datasheet

Current PartRFQ

ERJ-1TNF66R5U

Panasonic Electronic ComponentsIn Stock: 5851ERJ-1TNF66R5U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F66R5CS is determined by strict equivalence across the following parameters:

Electrical Parameters:

• Resistance value: 66.5 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters:

• Package type: 2512 (6432 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance Parameters:

• RoHS3 compliance
• Moisture Sensitivity Level 1

The substitute part ERJ-1TNF66R5U meets all electrical and mechanical equivalence criteria. Dimensional variations within standard manufacturing tolerances do not preclude substitution. The substitute maintains identical electrical performance and package compatibility while offering alternative sourcing from Panasonic Electronic Components.

Parameter Comparison

Engineering Selection Recommendations

RC6432F66R5CS (Samsung Electro-Mechanics):

• Primary selection for new designs
• Active production status ensures long-term availability
• Moisture-resistant construction
• 1006 units in current inventory

ERJ-1TNF66R5U (Panasonic Electronic Components):

• Suitable for existing designs requiring component replacement
• Marked as "Not For New Designs," indicating end-of-life trajectory
• Includes automotive AEC-Q200 qualification, providing additional reliability assurance for automotive applications
• 5743 units in current inventory
• Dimensional variations (length 0.252" vs. 0.248"; height 0.028" vs. 0.026") fall within standard PCB layout tolerances for 2512 package footprints

Both parts maintain electrical equivalence and package compatibility. Selection between them depends on design phase and application requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF66R5U replace RC6432F66R5CS in existing assemblies?

A: Yes. Both parts share identical electrical specifications (66.5 Ohms ±1%, 1W, ±100ppm/°C, -55°C to 155°C operating range) and are packaged in the 2512 (6432 Metric) form factor. Dimensional variations are within standard manufacturing tolerances for this package type.

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

A: This status indicates the ERJ-1TNF66R5U is in end-of-life phase. It remains available for replacement and repair of existing products but should not be selected for new product development. The Samsung RC6432F66R5CS is the recommended choice for new designs.

Q: Are there dimensional compatibility concerns between these parts?

A: Length differs by 0.004" (0.10mm) and height by 0.002" (0.04mm). These variations are within standard PCB design tolerances for 2512 package footprints and do not affect electrical performance or mechanical fit in standard applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control. Both carry Moisture Sensitivity Level 1 (unlimited shelf life).

Q: What is the significance of AEC-Q200 qualification on the Panasonic part?

A: AEC-Q200 is an automotive industry standard for passive components. The Panasonic ERJ-1TNF66R5U meets this qualification, making it suitable for automotive applications requiring this certification. The Samsung part does not list this qualification.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. Both parts operate across the identical temperature range of -55°C to 155°C with the same temperature coefficient of ±100ppm/°C, ensuring equivalent performance in thermal cycling and high-temperature environments.