RC6432F3741CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F3741CS is a 3.74 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component operates across the temperature range of -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

The part is currently in active production status. Substitute components may be required due to supply chain constraints, inventory availability, or specific application requirements such as automotive qualification or packaging format preferences.

Substiute Parts

RC6432F3741CS

Samsung Electro-MechanicsIn Stock: 1095RC6432F3741CS Datasheet

Current PartRFQ

ERJ-1TNF3741U

Panasonic Electronic ComponentsIn Stock: 7807ERJ-1TNF3741U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F3741CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 3.74 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package format: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Number of terminations: 2

The identified substitute part ERJ-1TNF3741U from Panasonic Electronic Components meets all mandatory electrical and mechanical parameters. This part maintains identical resistance, tolerance, power rating, package designation, and thermal characteristics. The primary distinction is the addition of automotive AEC-Q200 qualification and a different packaging format (Tape & Reel versus bulk packaging).

Parameter Comparison

Engineering Selection Recommendations

RC6432F3741CS (Samsung Electro-Mechanics): Select this part for applications requiring active production status and standard industrial-grade thick film resistor performance. The component is currently in active production with 1047 units in stock inventory.

ERJ-1TNF3741U (Panasonic Electronic Components): This substitute is electrically and mechanically equivalent but carries "Not For New Designs" status, indicating end-of-life trajectory. However, it includes AEC-Q200 automotive qualification, making it suitable for automotive applications where this certification is required. The part is available in Tape & Reel packaging format with 7779 units in stock. Dimensional variations (length 6.40mm vs. 6.30mm, height 0.70mm vs. 0.66mm) are within typical PCB layout tolerances for 2512 package footprints.

For new design implementations, the RC6432F3741CS is the preferred selection due to active production status. The ERJ-1TNF3741U is suitable for replacement or automotive-qualified applications where the end-of-life status does not conflict with project requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF3741U directly replace RC6432F3741CS on existing PCBs?

A: Yes. Both components use the 2512 (6432 Metric) package with identical electrical specifications (3.74 kOhms ±1%, 1W, ±100ppm/°C). Minor dimensional differences (0.2mm length, 0.04mm height) fall within standard PCB design tolerances for this package class and do not require layout modifications.

Q: What is the significance of the "Not For New Designs" status on the Panasonic part?

A: This designation indicates the manufacturer is discontinuing the ERJ-1TNF3741U product line. While the part remains functionally equivalent and is currently in stock, it should not be selected for new product designs with long-term production requirements. Use the Samsung RC6432F3741CS for new designs.

Q: Does the AEC-Q200 qualification on the Panasonic part affect compatibility?

A: No. AEC-Q200 is an additional automotive qualification that does not alter electrical or mechanical performance. If your application requires automotive-grade components, the ERJ-1TNF3741U meets this requirement. If automotive qualification is not required, both parts are functionally interchangeable.

Q: Are there packaging format differences between these parts?

A: Yes. The RC6432F3741CS is supplied in bulk packaging, while the ERJ-1TNF3741U is supplied in Tape & Reel (TR) format. This affects handling and assembly processes but does not impact component performance. Verify your assembly equipment compatibility with the packaging format before selection.

Q: What is the moisture sensitivity level (MSL) and why is it important?

A: Both parts have MSL 1 (Unlimited), meaning they have unlimited shelf life and require no special moisture control during storage or handling. This simplifies inventory management and reduces component preparation requirements prior to assembly.

Q: Can I use these parts interchangeably in high-temperature applications?

A: Yes. Both components operate across -55°C to 155°C with identical ±100ppm/°C temperature coefficient. They are suitable for applications across this full temperature range without performance degradation.