ERJ-S14F1431U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F1431U is a 1.43 kOhms ±1% thick film chip resistor in 1210 (3225 Metric) package rated for 0.5W power dissipation. This component is manufactured by Panasonic Electronic Components and features anti-sulfur coating with automotive AEC-Q200 qualification. The part is currently in active production status. Substitute parts are necessary when the primary part experiences supply constraints, inventory limitations, or when design requirements permit selection from qualified alternatives with equivalent electrical and mechanical characteristics.

Substiute Parts

ERJ-S14F1431U

Panasonic Electronic ComponentsIn Stock: 801ERJ-S14F1431U Datasheet

Current PartRFQ

ERJ-14NF1431U

Panasonic Electronic ComponentsIn Stock: 8918ERJ-14NF1431U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F1431U is determined by strict equivalence across the following parameters:

• Resistance value: 1.43 kOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Package: 1210 (3225 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-14NF1431U meets all electrical and mechanical substitution criteria. Differences in product status and series designation do not affect functional equivalence in applications where the specified parameters are required.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S14F1431U is the preferred selection for new designs due to its active production status. The ERJ-14NF1431U is electrically and mechanically equivalent and carries identical AEC-Q200 automotive qualification and ROHS3 compliance. However, the ERJ-14NF1431U is designated "Not For New Designs," indicating it is in mature or end-of-life phase. Selection of ERJ-14NF1431U is appropriate only when supply of the primary part is unavailable and existing inventory of the substitute is confirmed. Both parts satisfy identical electrical performance requirements, thermal characteristics, and automotive reliability standards.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1431U be used as a direct replacement for ERJ-S14F1431U?

A: Yes. Both parts are electrically and mechanically identical with matching resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range. Both carry AEC-Q200 automotive qualification and ROHS3 compliance.

Q: What is the difference between the ERJ-S14 and ERJ-14N series?

A: The series designation reflects different product lines within Panasonic's resistor portfolio. The ERJ-S14 series is in active production, while the ERJ-14N series is designated "Not For New Designs." Electrical and mechanical specifications are equivalent.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both parts specify identical temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. Thermal and reliability performance are equivalent.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Both parts use identical 1210 (3225 Metric) package with matching footprint dimensions (0.126" L x 0.098" W, 3.20mm x 2.50mm) and height (0.028" maximum seated height). No PCB layout modifications are required.

Q: What does "Not For New Designs" mean for the ERJ-14NF1431U?

A: This designation indicates the part is in mature phase and Panasonic does not recommend its use in new product development. However, it remains functionally equivalent and suitable for replacement applications where supply of the primary part is constrained.

Q: Are moisture sensitivity requirements the same?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.