ERJ-S1TF1272U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF1272U is a 12.7 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 automotive and harsh environment applications. The part is currently active in production with 777 pieces available in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance ratings are maintained across alternative manufacturers.

Substiute Parts

ERJ-S1TF1272U

Panasonic Electronic ComponentsIn Stock: 802ERJ-S1TF1272U Datasheet

Current PartRFQ

CRCW251212K7FKEG

Vishay DaleIn Stock: 4067CRCW251212K7FKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF1272U is determined by strict equivalence across the following parameters:

• Resistance value: 12.7 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package type: 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 CRCW251212K7FKEG from Vishay Dale meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S1TF1272U and CRCW251212K7FKEG are active production parts with identical electrical specifications and automotive AEC-Q200 qualification. Selection between these parts should be based on availability, supply chain requirements, and design documentation preferences. Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility in automotive and industrial applications operating across the -55°C to 155°C temperature range. Physical dimensions are within acceptable tolerances for 2512 package footprints.

Frequently Asked Questions (FAQ)

Q: Can CRCW251212K7FKEG replace ERJ-S1TF1272U in automotive applications?

A: Yes. Both parts are AEC-Q200 qualified with identical electrical specifications (12.7 kOhms ±1%, 1W, ±100ppm/°C) and operating temperature range (-55°C ~ 155°C). Physical dimensions are within acceptable tolerances for the 2512 package.

Q: Are there differences in the physical dimensions between these parts?

A: Minor dimensional variations exist. ERJ-S1TF1272U measures 0.252" L x 0.126" W (6.40mm x 3.20mm), while CRCW251212K7FKEG measures 0.248" L x 0.124" W (6.30mm x 3.15mm). Both have identical seated height of 0.028" (0.70mm) and are compatible with standard 2512 footprints.

Q: What is the significance of the anti-sulfur feature on the ERJ-S1TF1272U?

A: The anti-sulfur coating on the ERJ-S1TF1272U provides enhanced protection in harsh environments. The CRCW251212K7FKEG does not specify this feature in the provided data, which may be a consideration for applications with sulfur exposure risk.

Q: Are both parts RoHS compliant?

A: Yes. Both ERJ-S1TF1272U and CRCW251212K7FKEG are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What packaging formats are available for these parts?

A: Both parts are supplied in Tape & Reel (TR) packaging format suitable for automated assembly processes.