ERJ-S1TF2052U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF2052U is a 20.5 kOhms ±1% 1W chip resistor manufactured by Panasonic Electronic Components in the 2512 (6432 Metric) package. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, making it suitable for demanding automotive and industrial applications. The part is currently active in production with 780 pieces available in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across manufacturing environments.

Substiute Parts

ERJ-S1TF2052U

Panasonic Electronic ComponentsIn Stock: 858ERJ-S1TF2052U Datasheet

Current PartRFQ

CRCW251220K5FKEG

Vishay DaleIn Stock: 2910CRCW251220K5FKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF2052U is determined by strict equivalence across the following critical parameters:

• Resistance value: 20.5 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

The CRCW251220K5FKEG manufactured by Vishay Dale meets all substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S1TF2052U and CRCW251220K5FKEG are active production parts with identical electrical specifications, package dimensions, and automotive qualifications. Selection between these parts is based on procurement availability and supply chain requirements. The ERJ-S1TF2052U carries the additional anti-sulfur feature; however, both parts meet ROHS3 compliance and AEC-Q200 automotive standards. The CRCW251220K5FKEG offers higher inventory availability (2871 pieces) compared to the ERJ-S1TF2052U (780 pieces), which may influence procurement decisions for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can CRCW251220K5FKEG be used as a direct replacement for ERJ-S1TF2052U?

A: Yes. Both parts share identical resistance, tolerance, power rating, package dimensions, temperature coefficient, operating temperature range, and AEC-Q200 automotive qualification. They are electrically and mechanically interchangeable.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The ERJ-S1TF2052U measures 0.252" L x 0.126" W (6.40mm x 3.20mm), while the CRCW251220K5FKEG measures 0.248" L x 0.124" W (6.30mm x 3.15mm). Both share the same maximum seated height of 0.028" (0.70mm) and fit the 2512 package specification.

Q: What is the significance of the anti-sulfur feature on the ERJ-S1TF2052U?

A: The anti-sulfur coating on the ERJ-S1TF2052U provides enhanced protection against sulfur-containing environments. The CRCW251220K5FKEG does not specify this feature; however, both parts maintain AEC-Q200 automotive qualification and identical performance specifications.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the ERJ-S1TF2052U and CRCW251220K5FKEG carry AEC-Q200 qualification and are rated for the automotive operating temperature range of -55°C to 155°C.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.