ERJ-S1TF34R8U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF34R8U is a 34.8 Ohm ±1% 1W thick film chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This part features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently in active production status with 925 pieces available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design flexibility is required across multiple qualified suppliers while maintaining identical electrical and mechanical specifications.

Substiute Parts

ERJ-S1TF34R8U

Panasonic Electronic ComponentsIn Stock: 951ERJ-S1TF34R8U Datasheet

Current PartRFQ

ERJ-1TNF34R8U

Panasonic Electronic ComponentsIn Stock: 26594ERJ-1TNF34R8U Datasheet

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AC2512FK-0734R8L

YAGEOIn Stock: 13158AC2512FK-0734R8L Datasheet

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CRCW251234R8FKEG

Vishay DaleIn Stock: 9995CRCW251234R8FKEG Datasheet

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RMCF2512FT34R8

Stackpole Electronics IncIn Stock: 10191RMCF2512FT34R8 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF34R8U is determined by strict equivalence across the following critical parameters:

• Resistance value: 34.8 Ohms
• 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 level: 1 (Unlimited)

All substitute parts listed meet these criteria. Dimensional variations within supplier tolerances do not affect functional substitutability. Product status differences (Active vs. Not For New Designs) are noted for design planning purposes but do not preclude electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the ERJ-S1TF34R8U. Selection among these alternatives should be based on the following factors:

Product Status: The ERJ-S1TF34R8U, AC2512FK-0734R8L, CRCW251234R8FKEG, and RMCF2512FT34R8 are all in active production status and suitable for new designs. The ERJ-1TNF34R8U carries a "Not For New Designs" status and should be reserved for legacy system maintenance or replacement applications only.

Compliance & Certifications: All substitute parts maintain ROHS3 compliance and AEC-Q200 automotive qualification. All parts are REACH unaffected and carry MSL 1 rating, indicating unlimited shelf life under standard storage conditions.

Supply Availability: Current inventory levels vary across manufacturers. YAGEO AC2512FK-0734R8L offers the highest stock availability (13,111 pieces), followed by Stackpole RMCF2512FT34R8 (10,171 pieces) and Vishay Dale CRCW251234R8FKEG (9,920 pieces). Panasonic ERJ-1TNF34R8U maintains substantial inventory (26,560 pieces) despite its legacy status.

Dimensional Tolerance: Minor dimensional variations exist within supplier specifications. All parts fit the 2512 package footprint with maximum seated heights of 0.028" (0.70mm) or less, ensuring PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF34R8U be used as a direct replacement for ERJ-S1TF34R8U?

A: Yes, ERJ-1TNF34R8U is electrically and mechanically equivalent. However, it carries "Not For New Designs" status. Use this part only for legacy system maintenance or field replacements where the original part is no longer available.

Q: Are there any differences in anti-sulfur or moisture-resistant features between these parts?

A: The ERJ-S1TF34R8U specifically includes anti-sulfur coating. The AC2512FK-0734R8L from YAGEO includes moisture-resistant features. All parts maintain MSL 1 rating. Feature differences do not affect functional substitutability for standard applications.

Q: Will these substitute parts work in automotive applications?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification and are suitable for automotive circuit applications within the specified operating temperature range of -55°C to 155°C.

Q: Are there any PCB layout or assembly considerations when switching between these manufacturers?

A: All parts use the 2512 (6432 Metric) package with identical footprints. Dimensional variations are within standard PCB assembly tolerances. No layout modifications are required for substitution.

Q: What is the significance of the ±100ppm/°C temperature coefficient?

A: This specification defines the resistance change per degree Celsius across the operating temperature range. All substitute parts share this identical specification, ensuring equivalent thermal performance in temperature-sensitive applications.

Q: Can I mix different manufacturers' parts in the same production batch?

A: Yes. All substitute parts meet identical electrical specifications, compliance standards, and package requirements. Mixed sourcing is permissible from a functional and assembly perspective.