ERJ-S14F1581U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F1581U is a 1.58 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 AEC-Q200 automotive qualification. The part is currently in active production status with 1183 units in stock. Substitute parts become necessary when the primary part reaches end-of-life, inventory constraints occur, or design revisions require alternative qualified sources while maintaining electrical and mechanical compatibility.

Substiute Parts

ERJ-S14F1581U

Panasonic Electronic ComponentsIn Stock: 1283ERJ-S14F1581U Datasheet

Current PartRFQ

ERJ-14NF1581U

Panasonic Electronic ComponentsIn Stock: 885ERJ-14NF1581U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F1581U is determined by strict equivalence across the following critical parameters:

• Resistance value: 1.58 kOhms
• Tolerance: ±1%
• Power rating: 0.5W
• 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-14NF1581U meets all electrical and mechanical substitution criteria. Differences in product status and specific feature sets (anti-sulfur coating presence) do not alter functional equivalence for applications requiring the specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-14NF1581U is electrically and mechanically equivalent to the ERJ-S14F1581U across all specified parameters. Both components satisfy AEC-Q200 automotive qualification, ROHS3 compliance, and identical electrical characteristics including resistance, tolerance, power rating, and temperature performance.

Selection between these parts should be based on product lifecycle status and availability. The ERJ-S14F1581U maintains active production status and higher inventory levels, making it the preferred choice for new designs and long-term supply assurance. The ERJ-14NF1581U, designated as "Not For New Designs," remains functionally suitable for existing applications or situations where inventory of the primary part is unavailable, provided that design documentation and qualification records are updated accordingly.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1581U be used as a direct replacement for ERJ-S14F1581U in automotive applications?

A: Yes. Both parts meet identical electrical specifications (1.58 kOhms ±1%, 0.5W), operate across the same temperature range (-55°C ~ 155°C), carry AEC-Q200 automotive qualification, and are packaged identically in 1210 (3225 Metric). Physical footprint and PCB layout compatibility are identical.

Q: What is the difference between ERJ-S14F1581U and ERJ-14NF1581U?

A: The primary differences are product status and specific feature sets. ERJ-S14F1581U includes anti-sulfur coating and is in active production. ERJ-14NF1581U is designated "Not For New Designs" and does not specify anti-sulfur coating. Electrical and mechanical parameters are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, carry AEC-Q200 automotive rating, have MSL 1 moisture sensitivity, and meet identical regulatory requirements (REACH Unaffected, ECCN EAR99, HTSUS 8533.21.0030).

Q: Which part should be selected for new product designs?

A: ERJ-S14F1581U is recommended for new designs due to active production status and higher current inventory. This ensures long-term supply continuity and design stability.

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

A: Yes. Identical package dimensions (0.126" L x 0.098" W, 3.20mm x 2.50mm), height (0.028" maximum), and two-termination configuration ensure mechanical and electrical interchangeability without PCB redesign.