Equivalent & Substitute Parts for ERJ-S1TF2742U

Part Overview

The ERJ-S1TF2742U is a 27.4 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 harsh environments. The part is currently in active production status with 694 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design revisions require alternative sourcing, or when supply chain optimization requires qualified alternatives from different manufacturers.

Substiute Parts

ERJ-S1TF2742U

Panasonic Electronic ComponentsIn Stock: 765ERJ-S1TF2742U Datasheet

Current PartRFQ

ERJ-1TNF2742U

Panasonic Electronic ComponentsIn Stock: 8926ERJ-1TNF2742U Datasheet

SimilarRFQ

CRCW251227K4FKEG

Vishay DaleIn Stock: 4824CRCW251227K4FKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF2742U is determined by the following critical parameters:

• Resistance value: 27.4 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Package: 2512 (6432 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the primary part.

Parameter Comparison

Engineering Selection Recommendations

For new designs, the ERJ-S1TF2742U (Panasonic, Active status) is the primary selection. The CRCW251227K4FKEG (Vishay Dale, Active status) serves as a qualified alternative from a different manufacturer, providing supply chain redundancy while maintaining identical electrical and mechanical specifications.

The ERJ-1TNF2742U (Panasonic, Not For New Designs status) is suitable only for legacy design support or replacement in existing applications. This part should not be selected for new product development.

All three parts carry AEC-Q200 automotive qualification and ROHS3 compliance, confirming suitability for regulated automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF2742U be used in new designs? A: No. The ERJ-1TNF2742U carries "Not For New Designs" status. For new designs, use ERJ-S1TF2742U or CRCW251227K4FKEG.

Q: Are the physical dimensions identical across all three parts? A: The parts are mechanically compatible within the 2512 package specification. ERJ-S1TF2742U and ERJ-1TNF2742U are both 0.252" L x 0.126" W (6.40mm x 3.20mm). CRCW251227K4FKEG is 0.248" L x 0.124" W (6.30mm x 3.15mm). All three have maximum seated height of 0.028" (0.70mm) and are interchangeable in standard 2512 footprints.

Q: What is the difference between ERJ-S1TF2742U and ERJ-1TNF2742U? A: Both parts are electrically identical with matching resistance, tolerance, power rating, and temperature specifications. The primary difference is product status: ERJ-S1TF2742U is Active, while ERJ-1TNF2742U is Not For New Designs. Additionally, ERJ-S1TF2742U includes anti-sulfur coating.

Q: Can CRCW251227K4FKEG replace ERJ-S1TF2742U in existing applications? A: Yes. CRCW251227K4FKEG meets all electrical and mechanical requirements and carries identical AEC-Q200 and ROHS3 certifications, making it a direct substitute.

Q: Are all parts suitable for automotive applications? A: Yes. All three parts carry AEC-Q200 automotive qualification and are rated for -55°C ~ 155°C operating temperature, confirming suitability for automotive and harsh industrial environments.