ERJ-S1TF1801U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF1801U is a 1.8 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 691 pieces in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and automotive certifications align with the original component requirements.

Substiute Parts

ERJ-S1TF1801U

Panasonic Electronic ComponentsIn Stock: 721ERJ-S1TF1801U Datasheet

Current PartRFQ

CRCW25121K80FKEG

Vishay DaleIn Stock: 10863CRCW25121K80FKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERJ-S1TF1801U are qualified based on the following critical parameters:

• Resistance value: 1.8 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 certification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

The CRCW25121K80FKEG from Vishay Dale meets all these electrical and mechanical specifications, enabling direct substitution in applications requiring equivalent performance and automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S1TF1801U and CRCW25121K80FKEG are active production components with identical electrical specifications and automotive AEC-Q200 certification. Selection between these parts may be based on availability, supply chain considerations, or existing design qualification history. The ERJ-S1TF1801U includes anti-sulfur coating as an additional feature. Both components meet ROHS3 compliance and MSL 1 moisture sensitivity requirements, suitable for unrestricted storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can CRCW25121K80FKEG replace ERJ-S1TF1801U in automotive applications?

A: Yes. Both parts share identical resistance (1.8 kOhms), tolerance (±1%), power rating (1W), package (2512), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive certification. Mechanical dimensions are within acceptable tolerances for PCB footprint compatibility.

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

A: The ERJ-S1TF1801U measures 0.252" L x 0.126" W (6.40mm x 3.20mm), while the CRCW25121K80FKEG measures 0.248" L x 0.124" W (6.30mm x 3.15mm). Both have identical height (0.028" / 0.70mm maximum) and are compatible with standard 2512 package footprints.

Q: What is the significance of anti-sulfur coating on the ERJ-S1TF1801U?

A: The anti-sulfur feature on the ERJ-S1TF1801U provides additional protection in environments with sulfur-containing contaminants. The CRCW25121K80FKEG does not specify this feature but maintains equivalent electrical performance and automotive qualification.

Q: Are both parts suitable for high-temperature automotive environments?

A: Yes. Both components operate across -55°C ~ 155°C and carry AEC-Q200 automotive qualification, meeting temperature requirements for standard automotive applications.

Q: What is MSL 1 moisture sensitivity, and why does it matter?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture control requirements. Both parts can be stored and handled without special desiccant packaging or time-limited exposure windows.