ERJ-S02F3R90X Equivalent & Substitute Parts

Part Overview

The ERJ-S02F3R90X is a 3.9 Ohm ±1% 0.1W chip resistor manufactured by Panasonic Electronic Components in the 0402 (1005 Metric) package. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, making it suitable for automotive and harsh environment applications. The part is currently in active production status. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory requirements necessitate alternative manufacturer series within the same electrical and mechanical specifications.

Substiute Parts

ERJ-S02F3R90X

Panasonic Electronic ComponentsIn Stock: 818ERJ-S02F3R90X Datasheet

Current PartRFQ

ERJ-U02F3R90X

Panasonic Electronic ComponentsIn Stock: 2600ERJ-U02F3R90X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERJ-S02F3R90X is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ERJ-U02F3R90X is qualified as a direct equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Resistance value: 3.9 Ohms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Temperature coefficient: -100 / +600 ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match Exactly):

• Package / Case: 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

Composition & Features (Must Match Exactly):

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

The substitute part differs only in the manufacturer series designation (ERJ-U02 versus ERJ-S02), while maintaining identical electrical performance, mechanical compatibility, and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S02F3R90X and ERJ-U02F3R90X are active production parts manufactured by Panasonic Electronic Components with full AEC-Q200 automotive qualification. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for automotive and industrial applications.

The ERJ-U02F3R90X substitute part maintains complete electrical and mechanical equivalence to the ERJ-S02F3R90X across all specified parameters. Selection between these parts is based on inventory availability and supply chain requirements rather than technical performance differences. Both parts are suitable for direct substitution in circuit designs requiring a 3.9 Ohm ±1% 0.1W thick film resistor in the 0402 package with anti-sulfur coating and automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-U02F3R90X be used as a direct replacement for the ERJ-S02F3R90X?

A: Yes. The ERJ-U02F3R90X is a direct equivalent substitute. All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range), mechanical dimensions (0402 package, physical size, height), composition (thick film), features (anti-sulfur, AEC-Q200), and regulatory compliance (ROHS3, REACH Unaffected, MSL 1) are identical between the two parts.

Q: Are there any differences in package or footprint between these parts?

A: No. Both parts use the 0402 (1005 Metric) package with identical physical dimensions of 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm). PCB footprints and assembly processes are interchangeable.

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

A: The ERJ-S02 and ERJ-U02 are different manufacturer series designations within Panasonic's resistor product line. For the 3.9 Ohm ±1% 0.1W 0402 specification, both series provide identical electrical performance and mechanical compatibility.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the ERJ-S02F3R90X and ERJ-U02F3R90X carry AEC-Q200 automotive qualification and anti-sulfur coating, making them suitable for automotive and harsh environment applications across the -55°C ~ 155°C operating temperature range.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements.

Q: Are these parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and REACH Unaffected, meeting environmental and regulatory requirements for electronic component use.