ERJ-S14F1911U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F1911U is a 1.91 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. 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-S14F1911U

Panasonic Electronic ComponentsIn Stock: 1090ERJ-S14F1911U Datasheet

Current PartRFQ

ERJ-14NF1911U

Panasonic Electronic ComponentsIn Stock: 18467ERJ-14NF1911U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F1911U is determined by strict equivalence across the following parameters:

• Resistance value: 1.91 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
• Moisture sensitivity: MSL 1

The ERJ-14NF1911U qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status: ERJ-S14F1911U is active production, while ERJ-14NF1911U is designated "Not For New Designs."

Parameter Comparison

Engineering Selection Recommendations

For new design implementations, the ERJ-S14F1911U is the preferred selection due to its active production status and full lifecycle support from Panasonic Electronic Components.

The ERJ-14NF1911U is electrically and mechanically equivalent and remains suitable for legacy system maintenance, field repairs, or applications where existing inventory must be utilized. However, its "Not For New Designs" status indicates that Panasonic has transitioned this part to end-of-life management. Selection of ERJ-14NF1911U for new designs introduces supply risk and potential future unavailability.

Both parts satisfy identical compliance requirements: AEC-Q200 automotive qualification, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1911U be used as a direct replacement for ERJ-S14F1911U in existing assemblies?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 1.91 kOhms ±1%, 0.5W power rating, 1210 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both carry AEC-Q200 automotive qualification and ROHS3 compliance.

Q: Why is ERJ-14NF1911U marked "Not For New Designs"?

A: This designation indicates Panasonic has discontinued active development and marketing of this part number. The ERJ-S14F1911U represents the current production equivalent. For new product development, ERJ-S14F1911U ensures long-term supply availability and manufacturer support.

Q: Are there physical differences between these parts?

A: No. Both parts share identical dimensions: 0.126" L × 0.098" W (3.20mm × 2.50mm), with maximum seated height of 0.028" (0.70mm). Both use 1210 (3225 Metric) package with two terminations.

Q: What is the significance of the anti-sulfur feature in ERJ-S14F1911U?

A: The anti-sulfur coating in ERJ-S14F1911U provides enhanced environmental protection in automotive applications. ERJ-14NF1911U does not specify this feature, representing a material difference in environmental durability despite electrical equivalence.

Q: Can these parts be used interchangeably in automotive applications?

A: Both parts meet AEC-Q200 automotive qualification. However, ERJ-S14F1911U's anti-sulfur coating provides additional protection in corrosive environments. For applications requiring maximum environmental resilience, ERJ-S14F1911U is the specified choice.