ERJ-S1TJ3R3U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TJ3R3U is a 3.3 Ohm ±5% 1W thick film chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This part 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 990 pieces available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design flexibility allows for functionally equivalent alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

ERJ-S1TJ3R3U

Panasonic Electronic ComponentsIn Stock: 1005ERJ-S1TJ3R3U Datasheet

Current PartRFQ

ERJ-1TYJ3R3U

Panasonic Electronic ComponentsIn Stock: 16730ERJ-1TYJ3R3U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TJ3R3U is determined by strict equivalence across the following critical parameters:

• Resistance value: 3.3 Ohms
• Tolerance: ±5%
• Power rating: 1W
• Package type: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: -100 / +600 ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

The ERJ-1TYJ3R3U meets all these criteria and qualifies as a direct substitute. This part maintains identical electrical performance and mechanical compatibility while differing only in manufacturing series designation and current product status classification.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S1TJ3R3U is the preferred selection for new designs due to its active production status and anti-sulfur feature set. This part provides the most current manufacturing process and longest supply availability.

The ERJ-1TYJ3R3U qualifies as a functional equivalent for existing designs or legacy applications where supply of the primary part is constrained. This substitute maintains full electrical and mechanical compatibility with identical AEC-Q200 automotive qualification and ROHS3 compliance. However, the ERJ-1TYJ3R3U carries a "Not For New Designs" status, indicating it is suitable only for replacement or continuation of existing production runs.

Selection between these parts should be based on design phase (new versus legacy) and supply chain requirements rather than electrical performance, as both parts deliver identical functional characteristics within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TYJ3R3U be used as a direct replacement for ERJ-S1TJ3R3U in new designs?

A: No. While ERJ-1TYJ3R3U is electrically and mechanically equivalent, it carries "Not For New Designs" status. New designs should specify ERJ-S1TJ3R3U to ensure long-term supply continuity and access to current manufacturing processes.

Q: Are there any differences in electrical performance between these parts?

A: No. Both parts share identical resistance (3.3 Ohms), tolerance (±5%), power rating (1W), temperature coefficient (-100 / +600 ppm/°C), and operating temperature range (-55°C ~ 155°C).

Q: Do both parts fit the same PCB footprint?

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 (0.028" / 0.70mm). They are mechanically interchangeable.

Q: Are both parts automotive qualified?

A: Yes. Both parts carry AEC-Q200 automotive qualification and are ROHS3 compliant, meeting automotive and industrial reliability standards.

Q: What is the difference between ERJ-S1TJ3R3U and ERJ-1TYJ3R3U?

A: The primary difference is product status and manufacturing series. ERJ-S1TJ3R3U (ERJ-S1T series) is in active production with anti-sulfur coating. ERJ-1TYJ3R3U (ERJ-1T series) is classified as "Not For New Designs" and lacks the anti-sulfur feature, though it maintains full electrical equivalence.

Q: Can I use ERJ-1TYJ3R3U in existing production if ERJ-S1TJ3R3U becomes unavailable?

A: Yes. For existing designs already in production, ERJ-1TYJ3R3U provides full functional equivalence and can be used as a substitute when supply of the primary part is constrained.