ERJ-S1TF1373U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF1373U is a 137 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 935 pieces available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design revisions require compatible alternatives that maintain identical electrical and mechanical specifications.

Substiute Parts

ERJ-S1TF1373U

Panasonic Electronic ComponentsIn Stock: 1030ERJ-S1TF1373U Datasheet

Current PartRFQ

ERJ-1TNF1373U

Panasonic Electronic ComponentsIn Stock: 1533ERJ-1TNF1373U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF1373U is determined by strict equivalence across the following parameters:

• Resistance value: 137 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package type: 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

The ERJ-1TNF1373U qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status: ERJ-1TNF1373U is designated "Not For New Designs," indicating it is in mature or declining production phase.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production programs, the ERJ-S1TF1373U is the preferred selection due to its active product status and ongoing manufacturer support. This part maintains full compliance with ROHS3 and AEC-Q200 automotive qualification standards.

The ERJ-1TNF1373U is electrically and mechanically equivalent and remains suitable for existing designs already qualified to this part number. However, its "Not For New Designs" status indicates reduced manufacturer commitment to long-term availability. Selection of this substitute should be limited to legacy product support, design revisions where inventory constraints exist, or applications where design re-qualification to the active part is not feasible.

Both parts are manufactured by Panasonic Electronic Components and share identical electrical performance, thermal characteristics, and reliability ratings. The choice between them is driven by product lifecycle status and supply chain strategy rather than technical performance.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF1373U be used as a direct replacement for ERJ-S1TF1373U in new designs?

A: No. While electrically and mechanically equivalent, ERJ-1TNF1373U carries "Not For New Designs" status. New designs should specify ERJ-S1TF1373U to ensure long-term manufacturer support and supply continuity.

Q: Are there differences in anti-sulfur coating between these parts?

A: The ERJ-S1TF1373U explicitly includes anti-sulfur coating in its feature set. The ERJ-1TNF1373U specification does not list this feature. This distinction may be relevant for applications in high-sulfur environments.

Q: Do both parts meet the same automotive qualification standards?

A: Yes. Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance. They are suitable for automotive and industrial applications requiring these certifications.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 2512 (6432 Metric) package with identical dimensions: 0.252" L x 0.126" W (6.40mm x 3.20mm) and maximum seated height of 0.028" (0.70mm).

Q: What is the moisture sensitivity difference?

A: Both parts have MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Identical package, footprint, and electrical specifications allow direct substitution at the component level. No PCB layout modifications are required.