Equivalent & Substitute Parts for ERJ-S1TJ123U

Part Overview

The Panasonic ERJ-S1TJ123U is a 12 kOhms ±5% 1W thick film chip resistor in 2512 (6432 Metric) package with anti-sulfur coating and automotive AEC-Q200 qualification. This component is actively produced and suitable for new designs in automotive and industrial applications requiring high reliability and environmental resistance.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and quality certifications align with the main part's functional requirements. The parts listed below maintain identical resistance value, tolerance, power rating, package size, and automotive qualification standards.

Substiute Parts

ERJ-S1TJ123U

Panasonic Electronic ComponentsIn Stock: 778ERJ-S1TJ123U Datasheet

Current PartRFQ

ERJ-1TYJ123U

Panasonic Electronic ComponentsIn Stock: 5027ERJ-1TYJ123U Datasheet

SimilarRFQ

CRCW251212K0JNEG

Vishay DaleIn Stock: 4267CRCW251212K0JNEG Datasheet

SimilarRFQ

RMCF2512JT12K0

Stackpole Electronics IncIn Stock: 10257RMCF2512JT12K0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Resistance value: 12 kOhms
• Tolerance: ±5%
• Power rating: 1W
• Package designation: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°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 criteria. Differences in product status, manufacturer, and minor dimensional variations do not affect functional interchangeability within the specified electrical and environmental parameters.

Parameter Comparison

Engineering Selection Recommendations

For new designs, select from parts with Active product status: ERJ-S1TJ123U (Panasonic), CRCW251212K0JNEG (Vishay Dale), or RMCF2512JT12K0 (Stackpole Electronics Inc). All three maintain full AEC-Q200 automotive qualification and ROHS3 compliance.

ERJ-1TYJ123U carries a "Not For New Designs" status and should be used only in legacy applications or when existing inventory constraints require it. This part remains electrically and mechanically equivalent but is not recommended for new product development.

Minor dimensional variations exist between manufacturers (length 6.30mm vs 6.40mm, width 3.15mm vs 3.20mm) but remain within the 2512 package specification and do not affect circuit performance or PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can ERJ-S1TJ123U be directly replaced with ERJ-1TYJ123U?

A: Yes, electrically and mechanically. However, ERJ-1TYJ123U is marked "Not For New Designs." Use it only for legacy applications or inventory management in existing products.

Q: Are there dimensional differences between substitute parts?

A: Minor variations exist. Panasonic parts measure 6.40mm × 3.20mm, while Vishay Dale and Stackpole parts measure 6.30mm × 3.15mm. Both dimensions comply with the 2512 package standard and are PCB-compatible.

Q: Do all substitute parts meet automotive standards?

A: Yes. All listed parts carry AEC-Q200 qualification, ROHS3 compliance, and MSL 1 rating, meeting automotive reliability and environmental requirements.

Q: Which substitute should be selected for new designs?

A: CRCW251212K0JNEG (Vishay Dale) or RMCF2512JT12K0 (Stackpole Electronics Inc) are preferred for new designs, as both maintain Active product status. ERJ-S1TJ123U (Panasonic) is also Active and suitable for new designs.

Q: Are these parts interchangeable in high-temperature applications?

A: Yes. All parts operate across -55°C to 155°C with ±200ppm/°C temperature coefficient, meeting the same thermal performance specifications.