ERJ-S14F30R9U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F30R9U is a 30.9 Ohm ±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 988 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements mandate alternative qualified sources. The ERJ-14NF30R9U represents a direct functional equivalent from Panasonic's automotive-grade resistor portfolio, though it carries a "Not For New Designs" status designation.

Substiute Parts

ERJ-S14F30R9U

Panasonic Electronic ComponentsIn Stock: 1080ERJ-S14F30R9U Datasheet

Current PartRFQ

ERJ-14NF30R9U

Panasonic Electronic ComponentsIn Stock: 10541ERJ-14NF30R9U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F30R9U is determined by strict equivalence across the following critical parameters:

• Resistance value: 30.9 Ohms
• Tolerance: ±1%
• Power rating: 0.5W minimum
• Package format: 1210 (3225 Metric)
• Composition: Thick film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C minimum
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 or equivalent

The ERJ-14NF30R9U qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. This part maintains identical resistance, tolerance, power rating, package dimensions, and thermal characteristics. Both components are manufactured by Panasonic and carry AEC-Q200 automotive certification.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S14F30R9U is the preferred selection for new designs due to its active production status and full lifecycle support from Panasonic. This part carries no design restrictions and is recommended for all applications requiring a 30.9 Ohm ±1% automotive-grade thick film resistor in the 1210 package.

The ERJ-14NF30R9U serves as a functional equivalent for applications where the primary part is unavailable or where existing inventory must be utilized. However, this part carries a "Not For New Designs" designation, indicating that Panasonic does not recommend its use in new product development. This substitute is suitable only for replacement, repair, or continuation of existing designs where the part is already qualified.

Both parts meet identical electrical and mechanical specifications and carry AEC-Q200 automotive certification. Selection between these parts should be based on design phase (new versus existing) and inventory availability rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF30R9U be used as a direct replacement for ERJ-S14F30R9U in new designs?

A: No. While the ERJ-14NF30R9U is electrically and mechanically equivalent, Panasonic designates it as "Not For New Designs." New product development must use the ERJ-S14F30R9U or identify alternative qualified sources.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the 1210 (3225 Metric) package with identical dimensions: 0.126" L × 0.098" W (3.20mm × 2.50mm) and maximum seated height of 0.028" (0.70mm).

Q: Do both parts meet the same automotive qualification standards?

A: Yes. Both the ERJ-S14F30R9U and ERJ-14NF30R9U carry AEC-Q200 automotive qualification and are suitable for automotive applications within their specified operating temperature range of -55°C to 155°C.

Q: What is the significance of the "Not For New Designs" status?

A: This designation indicates that the manufacturer has transitioned the part to a legacy status and does not recommend its use in new product development. The part remains available for existing designs and repair applications but should not be selected for new projects.

Q: Are there differences in RoHS compliance between these parts?

A: No. Both parts are ROHS3 compliant and carry identical environmental compliance certifications including REACH Unaffected status.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging and use identical 1210 package footprints, allowing direct substitution in automated assembly processes without design modifications.