ERJ-S1TF20R5U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF20R5U is a 20.5 Ohm ±1% 1W thick film chip resistor manufactured by Panasonic Electronic Components in the 2512 (6432 Metric) package. This component is designed for automotive applications and carries AEC-Q200 qualification with anti-sulfur protection. The part is currently in active production status with 613 units available in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive certifications align with the original component requirements.

Substiute Parts

ERJ-S1TF20R5U

Panasonic Electronic ComponentsIn Stock: 631ERJ-S1TF20R5U Datasheet

Current PartRFQ

RMCF2512FT20R5

Stackpole Electronics IncIn Stock: 4706RMCF2512FT20R5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF20R5U is determined by strict alignment of the following parameters:

• Resistance value: 20.5 Ohms
• 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 RMCF2512FT20R5 from Stackpole Electronics Inc meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S1TF20R5U and RMCF2512FT20R5 are active production components with identical electrical specifications, mechanical dimensions, and automotive certifications. Selection between these parts may be based on inventory availability, supply chain considerations, or established procurement preferences. The Panasonic ERJ-S1TF20R5U includes anti-sulfur protection as an additional feature. Both components satisfy ROHS3 compliance and AEC-Q200 automotive qualification requirements for applications operating within the -55°C to 155°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can RMCF2512FT20R5 be used as a direct replacement for ERJ-S1TF20R5U?

A: Yes. Both components share identical resistance value, tolerance, power rating, package type, temperature coefficient, operating temperature range, and automotive certifications. Physical dimensions and termination count are equivalent.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variation exists in length: ERJ-S1TF20R5U measures 0.252" (6.40mm) while RMCF2512FT20R5 measures 0.248" (6.30mm). Both fit the 2512 package specification and share identical width (0.126" / 3.20mm) and maximum seated height (0.028" / 0.70mm). This variation is within standard package tolerances and does not affect PCB layout compatibility.

Q: What is the significance of AEC-Q200 certification?

A: AEC-Q200 certification indicates the component meets automotive industry reliability standards for passive components. Both parts carry this qualification, confirming suitability for automotive applications.

Q: Does the anti-sulfur feature of the ERJ-S1TF20R5U affect substitution eligibility?

A: The anti-sulfur protection is an additional feature of the Panasonic part. The Stackpole RMCF2512FT20R5 does not list this feature. In applications where anti-sulfur protection is a design requirement, the ERJ-S1TF20R5U is the specified choice. For applications without this specific requirement, both parts are functionally equivalent.

Q: Are both parts RoHS compliant?

A: Yes. Both ERJ-S1TF20R5U and RMCF2512FT20R5 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating.