ERJ-S02F1781X Equivalent & Substitute Parts

Part Overview

The ERJ-S02F1781X is a 1.78 kOhms ±1% thick film chip resistor in 0402 (1005 Metric) package rated for 0.1W power dissipation. Manufactured by Panasonic Electronic Components, this component features anti-sulfur coating and AEC-Q200 automotive qualification. The part is currently active in production with 1181 pieces available in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with application requirements.

Substiute Parts

ERJ-S02F1781X

Panasonic Electronic ComponentsIn Stock: 1285ERJ-S02F1781X Datasheet

Current PartRFQ

ERJ-U02F1781X

Panasonic Electronic ComponentsIn Stock: 5815ERJ-U02F1781X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S02F1781X is determined by strict equivalence across the following parameters:

• Resistance value: 1.78 kOhms
• Tolerance: ±1%
• Power rating: 0.1W
• Package: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Anti-sulfur feature presence
• RoHS3 compliance
• MSL rating: 1

The ERJ-U02F1781X qualifies as a direct substitute based on identical alignment across all specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S02F1781X and ERJ-U02F1781X are active production components manufactured by Panasonic Electronic Components. Selection between these parts is based on inventory availability and supply chain considerations rather than electrical or mechanical differentiation. The ERJ-U02F1781X currently maintains higher inventory levels (5759 pieces) compared to the ERJ-S02F1781X (1181 pieces). Both components meet AEC-Q200 automotive qualification and ROHS3 compliance requirements. The identical electrical specifications, package dimensions, and thermal characteristics ensure functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U02F1781X replace ERJ-S02F1781X in automotive applications?

A: Yes. Both components carry AEC-Q200 automotive qualification and are electrically and mechanically identical across all specified parameters.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 0402 (1005 Metric) package with identical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm).

Q: Do both parts have the same temperature coefficient?

A: Yes. Both components specify ±200ppm/°C temperature coefficient and operate across the identical range of -55°C ~ 155°C.

Q: What is the difference between ERJ-S02 and ERJ-U02 series designations?

A: The series designation reflects internal Panasonic product line categorization. Electrical and mechanical specifications remain equivalent for this resistance value and tolerance combination.

Q: Are moisture sensitivity levels the same?

A: Yes. Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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

A: Yes. Identical package specifications and tape & reel packaging ensure compatibility with standard SMD assembly equipment and processes.