ERJ-S12F1001U Equivalent & Substitute Parts

Part Overview

The ERJ-S12F1001U is a 1 kOhms ±1% 0.75W chip resistor in 1812 (4532 Metric) package manufactured by Panasonic Electronic Components. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications requiring stable resistance performance across extended temperature ranges. The part is currently active in production with robust inventory availability. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications.

Substiute Parts

ERJ-S12F1001U

Panasonic Electronic ComponentsIn Stock: 1046ERJ-S12F1001U Datasheet

Current PartRFQ

ERJ-U12F1001U

Panasonic Electronic ComponentsIn Stock: 4975ERJ-U12F1001U Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S12F1001U is determined by strict equivalence across the following critical parameters:

• Resistance value: 1 kOhms
• Tolerance: ±1%
• Power rating: 0.75W
• Package type: 1812 (4532 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Anti-sulfur feature requirement
• Moisture sensitivity level: 1

The ERJ-U12F1001U from Panasonic Electronic Components meets all these criteria and qualifies as a direct substitute. Both parts are manufactured by the same supplier, share identical electrical performance characteristics, and are housed in the same physical package with equivalent termination configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S12F1001U and ERJ-U12F1001U are active production parts from Panasonic Electronic Components with full ROHS3 compliance and AEC-Q200 automotive qualification. Selection between these parts should be based on inventory availability and supply chain considerations, as they are electrically and mechanically identical. The ERJ-U12F1001U currently maintains higher inventory levels (4924 Pcs vs. 987 Pcs), which may provide supply chain advantages for high-volume applications. Both parts satisfy identical performance requirements for automotive and industrial applications requiring stable 1 kOhms resistance across the -55°C to 155°C operating range.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U12F1001U be used as a direct replacement for ERJ-S12F1001U in automotive applications?

A: Yes. Both parts are AEC-Q200 qualified, share identical electrical specifications (1 kOhms ±1%, 0.75W), and are housed in the same 1812 (4532 Metric) package. They are functionally interchangeable.

Q: Are there any differences in physical dimensions between these parts?

A: No. Both parts have identical dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm) with maximum seated height of 0.028" (0.70mm). They are mechanically compatible for PCB assembly.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both ERJ-S12F1001U and ERJ-U12F1001U are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. They meet identical regulatory requirements.

Q: What is the significance of the series designation difference (ERJ-S12 vs. ERJ-U12)?

A: The series designation indicates different product lines within Panasonic's resistor portfolio. Despite the different series names, these specific part numbers are electrically and mechanically equivalent with identical performance characteristics and package specifications.

Q: Are both parts suitable for tape and reel packaging?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes.