ERJ-S14F2551U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F2551U is a 2.55 kOhms ±1% thick film chip resistor manufactured by Panasonic Electronic Components in the 1210 (3225 Metric) package format. This component is rated for 0.5W power dissipation and features anti-sulfur coating with AEC-Q200 automotive qualification. The part is currently in active production status with 848 units available in stock.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit selection from qualified alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

ERJ-S14F2551U

Panasonic Electronic ComponentsIn Stock: 875ERJ-S14F2551U Datasheet

Current PartRFQ

ERJ-14NF2551U

Panasonic Electronic ComponentsIn Stock: 14747ERJ-14NF2551U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F2551U is determined by strict equivalence across the following parameters:

Resistance value must be exactly 2.55 kOhms with ±1% tolerance. Power rating must be 0.5W minimum. Package format must be 1210 (3225 Metric) with identical termination count (2 terminations). Temperature coefficient must be ±100ppm/°C or better. Operating temperature range must span -55°C to 155°C minimum. Automotive AEC-Q200 qualification is required. RoHS3 compliance and MSL 1 rating must be maintained.

The ERJ-14NF2551U qualifies as a direct substitute based on complete alignment with all specified parameters. The primary distinction is product status: ERJ-S14F2551U is Active, while ERJ-14NF2551U is designated Not For New Designs.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S14F2551U is the preferred selection for new designs due to its Active product status. This designation ensures continued manufacturer support, process optimization, and long-term availability.

The ERJ-14NF2551U is electrically and mechanically equivalent and maintains full AEC-Q200 automotive qualification. However, its Not For New Designs status indicates that Panasonic has transitioned this part to legacy support. Selection of ERJ-14NF2551U is appropriate only for sustaining production of existing designs or when ERJ-S14F2551U availability is constrained.

Both parts satisfy ROHS3 compliance and carry identical electrical performance specifications. The anti-sulfur feature of ERJ-S14F2551U provides enhanced environmental protection compared to the standard thick film composition of ERJ-14NF2551U, though both meet AEC-Q200 requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF2551U be used as a direct replacement for ERJ-S14F2551U in new automotive designs?

A: Electrical and mechanical compatibility is complete. However, the Not For New Designs status of ERJ-14NF2551U makes it unsuitable for new production. Use ERJ-S14F2551U for new designs to ensure long-term supply continuity.

Q: Are there dimensional differences between these two parts?

A: No. Both parts use the 1210 (3225 Metric) package with identical footprint dimensions of 0.126" L x 0.098" W (3.20mm x 2.50mm) and maximum seated height of 0.028" (0.70mm).

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both ERJ-S14F2551U and ERJ-14NF2551U carry AEC-Q200 automotive qualification and are suitable for automotive applications within the specified operating temperature range of -55°C to 155°C.

Q: What is the significance of the anti-sulfur feature on ERJ-S14F2551U?

A: The anti-sulfur coating provides enhanced resistance to sulfur-containing environmental contaminants, extending component reliability in harsh automotive environments. ERJ-14NF2551U lacks this feature but remains AEC-Q200 qualified.

Q: Are moisture sensitivity levels identical?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions and no baking requirements prior to assembly.