ERJ-S02J4R3X Equivalent & Substitute Parts

Part Overview

The ERJ-S02J4R3X is a 4.3 Ohm ±5% 0.1W thick film chip resistor manufactured by Panasonic Electronic Components in the 0402 (1005 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with anti-sulfur construction. The part is currently in active production status with 1021 pieces available in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required but alternative packaging, series designations, or inventory availability necessitate component substitution.

Substiute Parts

ERJ-S02J4R3X

Panasonic Electronic ComponentsIn Stock: 1114ERJ-S02J4R3X Datasheet

Current PartRFQ

ERJ-U02J4R3X

Panasonic Electronic ComponentsIn Stock: 10054ERJ-U02J4R3X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERJ-S02J4R3X is permissible with parts that maintain identical electrical specifications and mechanical compatibility. The critical parameters that determine substitution eligibility are:

Electrical Parameters:

• Resistance value: 4.3 Ohms
• Tolerance: ±5%
• Power rating: 0.1W (1/10W)
• Temperature coefficient: -100 / +600 ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters:

• Package type: 0402 (1005 Metric)
• Physical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm)
• Height - Seated (Max): 0.016" (0.40mm)
• Number of terminations: 2

Compliance & Certification:

• Composition: Thick Film
• Features: Anti-Sulfur, Automotive AEC-Q200
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The ERJ-U02J4R3X qualifies as a direct substitute based on matching all electrical and mechanical parameters, with the primary difference being the series designation (ERJ-U02 versus ERJ-S02) and packaging format (Tape & Reel versus standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The ERJ-U02J4R3X is a direct electrical and mechanical equivalent to the ERJ-S02J4R3X. Both components are manufactured by Panasonic Electronic Components and maintain identical specifications across all critical parameters including resistance, tolerance, power rating, package dimensions, and operating characteristics.

Both parts carry active product status and meet automotive AEC-Q200 qualification requirements with anti-sulfur construction. Both are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no special handling requirements during storage or assembly.

The primary distinction between these parts is the series designation and packaging format. The ERJ-U02J4R3X is supplied in Tape & Reel (TR) format, which is standard for high-volume manufacturing environments, whereas the ERJ-S02J4R3X uses standard packaging. Selection between these parts should be based on procurement requirements, assembly process compatibility, and inventory availability rather than electrical or mechanical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-U02J4R3X be used as a direct replacement for the ERJ-S02J4R3X in automotive applications?

A: Yes. Both parts meet identical electrical specifications (4.3 Ohms ±5%, 0.1W), maintain the same 0402 (1005 Metric) package dimensions, and carry AEC-Q200 automotive qualification. The components are functionally interchangeable from an electrical and mechanical standpoint.

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

A: The series designation reflects the base product number within Panasonic's resistor portfolio. Both series share identical electrical and mechanical specifications for this 4.3 Ohm value. The primary operational difference is packaging format: ERJ-S02 uses standard packaging while ERJ-U02 is supplied in Tape & Reel (TR) format.

Q: Does the Tape & Reel packaging of the ERJ-U02J4R3X affect component performance?

A: No. Tape & Reel packaging is a delivery and handling format that does not alter the electrical or mechanical properties of the component. The resistor itself maintains identical specifications regardless of packaging format.

Q: Are both parts suitable for high-temperature automotive environments?

A: Yes. Both the ERJ-S02J4R3X and ERJ-U02J4R3X operate across the -55°C ~ 155°C temperature range with a temperature coefficient of -100 / +600 ppm/°C. Both carry AEC-Q200 automotive qualification and anti-sulfur construction for reliability in demanding automotive applications.

Q: What is the Moisture Sensitivity Level (MSL) for these components?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage, handling, or assembly processes.

Q: Can these 0402 resistors be used in space-constrained PCB designs?

A: Yes. The 0402 (1005 Metric) package measures 0.039" L x 0.020" W (1.00mm x 0.50mm) with a maximum seated height of 0.016" (0.40mm), making these components suitable for compact surface-mount applications where board space is limited.

Q: Are both parts RoHS compliant?

A: Yes. Both the ERJ-S02J4R3X and ERJ-U02J4R3X are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.