ERJ-S1TF1740U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF1740U is a 174 Ohms ±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 1149 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance ratings.

Substiute Parts

ERJ-S1TF1740U

Panasonic Electronic ComponentsIn Stock: 1196ERJ-S1TF1740U Datasheet

Current PartRFQ

CRCW2512174RFKEGHP

Vishay DaleIn Stock: 3281CRCW2512174RFKEGHP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF1740U is determined by the following critical parameters:

• Resistance value: 174 Ohms
• Tolerance: ±1%
• Package footprint: 2512 (6432 Metric)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Composition: Thick Film
• RoHS compliance: ROHS3 Compliant

The CRCW2512174RFKEGHP from Vishay Dale meets all substitution criteria. While this part features a higher power rating (1.5W versus 1W), it maintains identical resistance, tolerance, package dimensions, temperature characteristics, and automotive certification. The increased power rating provides additional thermal margin and does not compromise compatibility in applications designed for the 1W specification.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S1TF1740U and CRCW2512174RFKEGHP are active production parts with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts should be based on:

• Availability: CRCW2512174RFKEGHP has higher inventory (3179 units) compared to ERJ-S1TF1740U (1149 units)
• Power margin: CRCW2512174RFKEGHP provides 1.5W rating versus 1W, offering additional thermal headroom in power-dissipation-critical applications
• Dimensional tolerance: Both parts fit the 2512 package with negligible dimensional variation (0.1mm maximum difference in length and width)
• Pulse withstanding capability: CRCW2512174RFKEGHP includes pulse withstanding feature; ERJ-S1TF1740U includes anti-sulfur coating

Frequently Asked Questions (FAQ)

Q: Can CRCW2512174RFKEGHP replace ERJ-S1TF1740U in all applications?

A: Yes. Both parts share identical electrical specifications (174 Ohms ±1%, ±100ppm/°C, -55°C to 155°C), package footprint (2512), and automotive certification (AEC-Q200). The higher power rating of CRCW2512174RFKEGHP does not create compatibility issues.

Q: What is the difference in physical dimensions between these parts?

A: ERJ-S1TF1740U measures 6.40mm x 3.20mm; CRCW2512174RFKEGHP measures 6.30mm x 3.15mm. Both have identical height (0.70mm maximum). These minor variations are within standard PCB layout tolerances for 2512 package footprints.

Q: Are both parts suitable for automotive applications?

A: Yes. Both parts carry AEC-Q200 qualification and are rated for automotive use across the full operating temperature range of -55°C to 155°C.

Q: What is the significance of the anti-sulfur coating on ERJ-S1TF1740U?

A: Anti-sulfur coating protects the resistor from sulfur-containing environmental contaminants. CRCW2512174RFKEGHP does not specify this feature but includes pulse withstanding capability instead. Selection depends on specific environmental exposure requirements.

Q: Are moisture sensitivity levels equivalent?

A: Yes. Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity concerns and no special storage or handling requirements.