ERJ-S1TF32R4U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF32R4U is a 32.4 Ohms ±1% 1W chip resistor manufactured by Panasonic Electronic Components in the 2512 (6432 Metric) package. This thick film resistor features anti-sulfur properties and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently in active production status with 1184 pieces available in inventory.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements shift to alternative manufacturers, or when production transitions occur. The ERJ-1TNF32R4U represents a legacy alternative from Panasonic, while the AC2512FK-0732R4L provides a functionally equivalent option from YAGEO with identical electrical specifications.

Substiute Parts

ERJ-S1TF32R4U

Panasonic Electronic ComponentsIn Stock: 1224ERJ-S1TF32R4U Datasheet

Current PartRFQ

ERJ-1TNF32R4U

Panasonic Electronic ComponentsIn Stock: 32780ERJ-1TNF32R4U Datasheet

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AC2512FK-0732R4L

YAGEOIn Stock: 11821AC2512FK-0732R4L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF32R4U is determined by strict equivalence across the following critical parameters:

• Resistance value: 32.4 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

Both identified substitutes meet all electrical and mechanical requirements. The ERJ-1TNF32R4U is a Panasonic product from the legacy ERJ-1TN series, currently marked as "Not For New Designs" but electrically identical. The AC2512FK-0732R4L is a YAGEO product from the AC series with active production status and includes moisture-resistant properties as an additional feature.

Parameter Comparison

Engineering Selection Recommendations

For new designs, the ERJ-S1TF32R4U is the preferred primary selection due to its active production status and anti-sulfur feature set. The AC2512FK-0732R4L from YAGEO serves as the primary substitute, offering active production status, equivalent electrical specifications, and additional moisture-resistant properties. Both parts maintain full AEC-Q200 automotive qualification and ROHS3 compliance.

The ERJ-1TNF32R4U is electrically equivalent but carries a "Not For New Designs" designation. This part may be used only in legacy product support or when existing inventory constraints require it. All three parts are mechanically and electrically interchangeable within the specified parameter tolerances.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF32R4U be used as a direct replacement for ERJ-S1TF32R4U?

A: Yes, the ERJ-1TNF32R4U is electrically and mechanically equivalent. However, it is marked "Not For New Designs." Use this part only for legacy product maintenance or when primary options are unavailable.

Q: What is the difference between ERJ-S1TF32R4U and AC2512FK-0732R4L?

A: Both parts are functionally equivalent with identical resistance, tolerance, power rating, package, and temperature specifications. The primary differences are manufacturer (Panasonic vs. YAGEO) and the AC2512FK-0732R4L includes moisture-resistant properties. Both maintain AEC-Q200 qualification and ROHS3 compliance.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification and operate across the -55°C to 155°C temperature range required for automotive environments.

Q: What is the physical package compatibility?

A: All three parts use the 2512 (6432 Metric) package with identical footprints. The AC2512FK-0732R4L has slightly different physical dimensions (0.250" L x 0.122" W vs. 0.252" L x 0.126" W) and height (0.026" vs. 0.028" max), but these differences remain within standard PCB design tolerances for the 2512 package class.

Q: Are there any compliance or certification differences?

A: All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Compliance profiles are equivalent across all substitutes.