ERJ-S1TF4320U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF4320U is a 432 Ohms ±1% 1W thick film chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This component 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 664 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life, experiences supply constraints, or when design requirements permit selection from qualified alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

ERJ-S1TF4320U

Panasonic Electronic ComponentsIn Stock: 686ERJ-S1TF4320U Datasheet

Current PartRFQ

ERJ-1TNF4320U

Panasonic Electronic ComponentsIn Stock: 1015ERJ-1TNF4320U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF4320U is determined by strict equivalence across the following critical parameters:

• Resistance value: 432 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: MSL 1

The ERJ-1TNF4320U qualifies as a direct substitute, meeting all electrical and mechanical parameters. This part differs only in series designation (ERJ-1TN versus ERJ-S1T) and product status classification, with no impact on functional performance or reliability in equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-1TNF4320U is electrically and mechanically equivalent to the ERJ-S1TF4320U. Both parts maintain identical electrical specifications, dimensional characteristics, and automotive qualification status. The primary distinction is product lifecycle status: ERJ-S1TF4320U is designated for active new designs, while ERJ-1TNF4320U is classified as "Not For New Designs."

For ongoing production and new design implementations, the ERJ-S1TF4320U remains the preferred selection. The ERJ-1TNF4320U is suitable for legacy system support, field replacements, or applications where existing design validation permits use of non-active series components. Both parts satisfy ROHS3 compliance and AEC-Q200 automotive reliability requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF4320U be used as a direct replacement for ERJ-S1TF4320U in new designs?

A: Electrical and mechanical compatibility is complete. However, ERJ-1TNF4320U carries "Not For New Designs" status. New design implementations should specify ERJ-S1TF4320U to ensure long-term supply continuity and manufacturer support.

Q: Are there dimensional differences between these parts?

A: No. Both parts are packaged in 2512 (6432 Metric) with identical length (0.252"), width (0.126"), and maximum seated height (0.028"). PCB footprints and assembly processes are interchangeable.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both ERJ-S1TF4320U and ERJ-1TNF4320U carry AEC-Q200 qualification and operate across the identical temperature range of -55°C to 155°C with ±100ppm/°C temperature coefficient.

Q: What is the significance of the series designation change (ERJ-S1T versus ERJ-1TN)?

A: Series designation reflects product line evolution within Panasonic's resistor portfolio. The change does not affect electrical performance, tolerance, power rating, or reliability characteristics. Both series employ identical thick film composition and anti-sulfur treatment.

Q: Are RoHS and REACH compliance identical?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for automotive and industrial applications.