ERJ-S14F2942U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F2942U is a 29.4 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 meets AEC-Q200 automotive qualification standards with anti-sulfur protection. The part is currently in active production status with 795 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design revisions require components from alternative manufacturing series while maintaining electrical and mechanical compatibility.

Substiute Parts

ERJ-S14F2942U

Panasonic Electronic ComponentsIn Stock: 885ERJ-S14F2942U Datasheet

Current PartRFQ

ERJ-14NF2942U

Panasonic Electronic ComponentsIn Stock: 5054ERJ-14NF2942U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F2942U is determined by strict equivalence across the following parameters:

• Resistance value: 29.4 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Package format: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The ERJ-14NF2942U qualifies as a direct substitute based on full alignment with all critical electrical and mechanical parameters. Differences in product status and manufacturing series do not affect functional compatibility in applications where the ERJ-S14F2942U is specified.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S14F2942U is the preferred selection for new designs due to its active product status. The ERJ-14NF2942U is electrically and mechanically equivalent and carries identical AEC-Q200 automotive qualification and ROHS3 compliance certifications. Selection of the substitute part is appropriate when the primary part is unavailable or when design revisions permit use of components from the ERJ-14N series. Both parts are manufactured by Panasonic Electronic Components and meet all specified compliance requirements for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF2942U be used as a direct replacement for ERJ-S14F2942U in automotive applications?

A: Yes. Both parts are AEC-Q200 qualified, ROHS3 compliant, and share identical electrical specifications (29.4 kOhms ±1%, 0.5W, ±100ppm/°C) and mechanical package format (1210). The substitute part meets all functional requirements for automotive use.

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

A: The ERJ-S14 series is in active production status, while the ERJ-14N series is designated "Not For New Designs." Both series are manufactured by Panasonic and meet equivalent electrical and compliance specifications. The series designation reflects manufacturing lifecycle status, not performance differences.

Q: Are there any package or footprint differences between these parts?

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

Q: Do both parts meet the same compliance standards?

A: Yes. Both ERJ-S14F2942U and ERJ-14NF2942U are ROHS3 compliant, REACH unaffected, and carry AEC-Q200 automotive qualification. Moisture sensitivity level is 1 (Unlimited) for both parts.

Q: What is the temperature coefficient specification, and does it differ between parts?

A: The temperature coefficient is ±100ppm/°C for both parts, with an operating temperature range of -55°C to 155°C. This specification is identical across both the main part and substitute.