Equivalent & Substitute Parts for ERJ-S1TF3481U

Part Overview

The ERJ-S1TF3481U is a 3.48 kOhms ±1% 1W chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently in active production status with 917 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design revisions require alternative qualified sources, or when supply chain optimization requires multi-source qualification.

Substiute Parts

ERJ-S1TF3481U

Panasonic Electronic ComponentsIn Stock: 972ERJ-S1TF3481U Datasheet

Current PartRFQ

ERJ-1TNF3481U

Panasonic Electronic ComponentsIn Stock: 8983ERJ-1TNF3481U Datasheet

SimilarRFQ

CRCW25123K48FKEG

Vishay DaleIn Stock: 3395CRCW25123K48FKEG Datasheet

SimilarRFQ

RMCF2512FT3K48

Stackpole Electronics IncIn Stock: 1516RMCF2512FT3K48 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF3481U is determined by strict equivalence across the following parameters:

• Resistance value: 3.48 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

All substitute parts listed meet these electrical and mechanical specifications. Dimensional variations within supplier tolerances do not affect functional interchangeability in standard PCB assembly processes.

Parameter Comparison

Engineering Selection Recommendations

For new designs, select from parts with Active product status: ERJ-S1TF3481U (Panasonic), CRCW25123K48FKEG (Vishay Dale), or RMCF2512FT3K48 (Stackpole Electronics Inc). All three maintain full AEC-Q200 automotive qualification and ROHS3 compliance.

The ERJ-1TNF3481U carries a "Not For New Designs" status and should be used only for legacy design maintenance or existing production continuity where the original part specification is locked.

All substitute parts are functionally equivalent within the specified electrical and mechanical parameters. Selection among active-status alternatives may be based on supply availability, lead time, or established supplier relationships.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF3481U be used in new automotive designs? A: No. ERJ-1TNF3481U carries "Not For New Designs" status. Use ERJ-S1TF3481U, CRCW25123K48FKEG, or RMCF2512FT3K48 for new designs.

Q: Are all substitute parts pin-compatible with the original ERJ-S1TF3481U? A: Yes. All substitute parts use the 2512 (6432 Metric) package with identical two-termination configuration and footprint compatibility for standard PCB assembly.

Q: Do dimensional tolerances affect interchangeability? A: No. Dimensional variations between manufacturers (e.g., 0.252" vs 0.248" length) fall within standard PCB assembly tolerances and do not affect functional interchangeability or board-level performance.

Q: Which substitute part has the best current availability? A: ERJ-1TNF3481U has the highest inventory at 8940 units. Among active-status parts, CRCW25123K48FKEG has 3323 units in stock.

Q: Are all parts suitable for automotive applications? A: Yes. All listed parts carry AEC-Q200 automotive qualification and are suitable for automotive-grade applications within the specified operating temperature range of -55°C to 155°C.

Q: What is the significance of the anti-sulfur feature on ERJ-S1TF3481U? A: The anti-sulfur coating on ERJ-S1TF3481U provides enhanced reliability in high-sulfur environments. ERJ-1TNF3481U does not specify this feature. For applications requiring anti-sulfur protection, ERJ-S1TF3481U is the preferred choice among Panasonic options.