Equivalent & Substitute Parts for ERJ-S1TF4223U

Part Overview

The ERJ-S1TF4223U is a 422 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 1013 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design flexibility across qualified manufacturers is needed while maintaining identical electrical and mechanical performance.

Substiute Parts

ERJ-S1TF4223U

Panasonic Electronic ComponentsIn Stock: 1059ERJ-S1TF4223U Datasheet

Current PartRFQ

ERJ-1TNF4223U

Panasonic Electronic ComponentsIn Stock: 3715ERJ-1TNF4223U Datasheet

SimilarRFQ

CRCW2512422KFKEG

Vishay DaleIn Stock: 3099CRCW2512422KFKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF4223U is determined by strict equivalence across the following parameters:

• Resistance value: 422 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 identified substitute parts meet these criteria. Variations in product status (Active vs. Not For New Designs) and minor dimensional tolerances within the 2512 package specification do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

For new design implementations, the ERJ-S1TF4223U (Panasonic, Active status) is the primary selection due to its current active production status and anti-sulfur coating feature.

The CRCW2512422KFKEG (Vishay Dale, Active status) is a qualified alternative from a different manufacturer, providing supply chain diversity while maintaining identical electrical specifications and automotive AEC-Q200 certification.

The ERJ-1TNF4223U (Panasonic, Not For New Designs status) is functionally equivalent but carries a "Not For New Designs" designation. This part is suitable only for legacy system maintenance, repair, or replacement applications where the original part number must be preserved.

All three parts satisfy identical compliance requirements: ROHS3 compliance, AEC-Q200 automotive qualification, and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF4223U be used in new designs? A: No. The ERJ-1TNF4223U carries a "Not For New Designs" status. It is functionally equivalent to ERJ-S1TF4223U but is intended only for legacy applications and replacement scenarios.

Q: Are there dimensional differences between the substitute parts? A: All parts conform to the 2512 (6432 Metric) package specification. The ERJ-S1TF4223U and ERJ-1TNF4223U have identical dimensions (0.252" L x 0.126" W / 6.40mm x 3.20mm). The CRCW2512422KFKEG has slightly different nominal dimensions (0.248" L x 0.124" W / 6.30mm x 3.15mm) but remains within the 2512 package tolerance envelope and is mechanically compatible.

Q: Do all substitute parts meet automotive requirements? A: Yes. All three parts carry AEC-Q200 automotive qualification and are ROHS3 compliant, meeting automotive industry standards for reliability and environmental compliance.

Q: What is the difference between ERJ-S1TF4223U and ERJ-1TNF4223U? A: Both are Panasonic 422 kOhms ±1% 1W resistors with identical electrical specifications. The primary difference is product status: ERJ-S1TF4223U is Active (suitable for new designs), while ERJ-1TNF4223U is Not For New Designs (legacy applications only). The ERJ-S1TF4223U includes anti-sulfur coating as an additional feature.

Q: Can CRCW2512422KFKEG be used as a direct replacement? A: Yes. The CRCW2512422KFKEG from Vishay Dale is electrically and mechanically equivalent, with identical resistance, tolerance, power rating, temperature coefficient, and automotive qualification. It is suitable for both new designs and replacement applications.

Q: Are there any supply chain considerations? A: Current inventory levels show ERJ-1TNF4223U (3663 Pcs) and CRCW2512422KFKEG (3038 Pcs) have higher stock than the primary part ERJ-S1TF4223U (1013 Pcs). For supply chain optimization, either substitute may be considered, provided design status requirements are met.