RC6432F5901CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F5901CS is a 5.9 kOhms ±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 855 units available in inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter set. Alternative sources provide equivalent resistance value, tolerance, power rating, and package dimensions while meeting the same environmental and compliance standards.

Substiute Parts

RC6432F5901CS

Samsung Electro-MechanicsIn Stock: 872RC6432F5901CS Datasheet

Current PartRFQ

ERJ-1TNF5901U

Panasonic Electronic ComponentsIn Stock: 5196ERJ-1TNF5901U Datasheet

SimilarRFQ

RMCF2512FT5K90

Stackpole Electronics IncIn Stock: 6524RMCF2512FT5K90 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F5901CS are qualified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Electrical Parameters (Must Match Exactly):

• Resistance value: 5.9 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match Exactly):

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

Compliance Parameters (Must Match or Exceed):

• RoHS3 compliance
• Moisture Sensitivity Level 1
• REACH unaffected status

Two substitute parts meet all specified criteria: ERJ-1TNF5901U (Panasonic Electronic Components) and RMCF2512FT5K90 (Stackpole Electronics Inc). Both maintain identical electrical specifications and package compatibility while providing alternative sourcing options.

Parameter Comparison

Engineering Selection Recommendations

RC6432F5901CS (Samsung Electro-Mechanics) - Primary Selection

The RC6432F5901CS remains the primary choice for active designs. This part carries active product status, ensuring continued manufacturing support and supply chain availability. It is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The moisture-resistant thick film construction with MSL 1 rating provides unlimited shelf life without special handling. Current inventory of 855 units supports immediate procurement.

RMCF2512FT5K90 (Stackpole Electronics Inc) - Preferred Substitute

The RMCF2512FT5K90 is the recommended substitute for new designs requiring alternative sourcing. This part maintains active product status with 6512 units in inventory, ensuring long-term availability. It meets all electrical and mechanical specifications identically to the primary part. The AEC-Q200 automotive qualification provides additional reliability assurance for applications requiring automotive-grade components. Dimensional variations (0.028" maximum seated height versus 0.026" for the Samsung part) remain within standard PCB assembly tolerances.

ERJ-1TNF5901U (Panasonic Electronic Components) - Legacy Alternative

The ERJ-1TNF5901U is electrically and mechanically equivalent but carries "Not For New Designs" status. This designation indicates Panasonic has discontinued active development for this part number. While 5138 units are currently available, this part should be used only for legacy system maintenance or repair applications where the original part number is required for compatibility. New designs should not incorporate this part number.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF5901U be used in new product designs?

A: No. The ERJ-1TNF5901U carries "Not For New Designs" status from Panasonic. New designs must use either RC6432F5901CS or RMCF2512FT5K90. The ERJ-1TNF5901U is suitable only for replacement or repair of existing systems.

Q: What is the difference between the three parts?

A: All three parts are electrically identical: 5.9 kOhms ±1%, 1W, thick film, 2512 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range. Differences are: (1) Manufacturer source, (2) Product status (active vs. not for new designs), (3) Automotive qualification (Panasonic and Stackpole include AEC-Q200; Samsung does not specify), (4) Minor dimensional variations within tolerance (height 0.026" to 0.028", length 6.30mm to 6.40mm).

Q: Are the dimensional differences between parts significant?

A: No. The dimensional variations fall within standard PCB assembly tolerances. The RC6432F5901CS and RMCF2512FT5K90 have identical length (6.30mm), while ERJ-1TNF5901U is 6.40mm. Height differences (0.66mm to 0.70mm) are negligible for standard surface-mount assembly. All three parts are mechanically interchangeable on standard 2512 footprints.

Q: Which part should I specify for automotive applications?

A: For automotive applications requiring AEC-Q200 qualification, specify either RMCF2512FT5K90 (Stackpole, active status) or ERJ-1TNF5901U (Panasonic, legacy status). The RC6432F5901CS does not carry automotive qualification. RMCF2512FT5K90 is the preferred choice for new automotive designs due to active product status.

Q: What does "Not For New Designs" mean?

A: "Not For New Designs" indicates the manufacturer has discontinued active development and support for that part number. While existing inventory may be available, the manufacturer provides no guarantee of future availability or support. This status is typically applied to parts being phased out in favor of newer alternatives.

Q: Are all three parts RoHS3 compliant?

A: Yes. All three parts—RC6432F5901CS, ERJ-1TNF5901U, and RMCF2512FT5K90—are ROHS3 compliant and REACH unaffected. All carry Moisture Sensitivity Level 1 (unlimited shelf life).

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

A: Yes. All three parts meet identical electrical specifications and are mechanically compatible on the same PCB footprint. However, for traceability and supply chain management, it is recommended to maintain consistent part sourcing within a single production run unless design documentation explicitly allows substitution.