ERJ-S1TF2872U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF2872U is a 28.7 kOhms ±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 955 units in stock.

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

Substiute Parts

ERJ-S1TF2872U

Panasonic Electronic ComponentsIn Stock: 1022ERJ-S1TF2872U Datasheet

Current PartRFQ

ERJ-1TNF2872U

Panasonic Electronic ComponentsIn Stock: 4560ERJ-1TNF2872U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF2872U is determined by strict equivalence across the following parameters:

Resistance value must be 28.7 kOhms with ±1% tolerance. Power rating must be 1W minimum. Package must be 2512 (6432 Metric) to ensure PCB footprint compatibility. Composition must be thick film. Temperature coefficient must be ±100ppm/°C. Operating temperature range must span -55°C to 155°C. Automotive AEC-Q200 qualification is required. RoHS3 compliance and MSL 1 rating must be maintained.

The ERJ-1TNF2872U qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction is product status: ERJ-S1TF2872U is active production while ERJ-1TNF2872U is designated "Not For New Designs," indicating it remains functionally equivalent but is in end-of-life phase.

Parameter Comparison

Engineering Selection Recommendations

For new designs and active production, the ERJ-S1TF2872U is the preferred selection due to its active product status and guaranteed long-term availability. This part includes anti-sulfur coating, providing enhanced reliability in corrosive environments.

The ERJ-1TNF2872U is electrically and mechanically equivalent and maintains full AEC-Q200 automotive qualification. However, its "Not For New Designs" status indicates Panasonic has transitioned this series to end-of-life phase. This part is suitable for legacy system maintenance, repair, or retrofit applications where existing inventory must be replenished with functionally identical components. The higher available inventory (4468 units) may provide short-term sourcing advantage for non-new-design applications.

Both parts are ROHS3 compliant and carry MSL 1 rating, eliminating moisture sensitivity concerns for standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF2872U be used as a direct replacement for ERJ-S1TF2872U in new designs?

A: Electrically and mechanically, yes. However, ERJ-1TNF2872U carries "Not For New Designs" status, meaning Panasonic has discontinued this series for new applications. For new designs, ERJ-S1TF2872U is the specified choice to ensure long-term supply continuity and manufacturer support.

Q: Are there any performance differences between these two parts?

A: No. Both parts share identical electrical specifications: 28.7 kOhms ±1%, 1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both carry AEC-Q200 automotive qualification. The primary difference is product lifecycle status.

Q: Will ERJ-1TNF2872U fit the same PCB footprint as ERJ-S1TF2872U?

A: Yes. Both parts use the 2512 (6432 Metric) package with identical dimensions: 0.252" L x 0.126" W (6.40mm x 3.20mm) and 0.028" maximum seated height (0.70mm). PCB footprints are fully compatible.

Q: What does "Not For New Designs" mean for ERJ-1TNF2872U?

A: This designation indicates Panasonic has transitioned the ERJ-1TN series to end-of-life status and recommends using the ERJ-S1T series (represented by ERJ-S1TF2872U) for all new product development. Existing inventory of ERJ-1TNF2872U remains available for legacy applications and repairs.

Q: Are both parts RoHS compliant?

A: Yes. Both ERJ-S1TF2872U and ERJ-1TNF2872U are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard PCB assembly and storage conditions without special handling requirements.

Q: What is the significance of the anti-sulfur coating on ERJ-S1TF2872U?

A: The anti-sulfur feature on ERJ-S1TF2872U provides enhanced corrosion resistance in environments with sulfur-containing contaminants, common in automotive and industrial applications. ERJ-1TNF2872U does not include this coating, representing a secondary distinction beyond product status.