Equivalent & Substitute Parts for ERJ-S1DF1403U

Part Overview

The ERJ-S1DF1403U is a 140 kOhms ±1% thick film chip resistor rated at 0.75W in a 2010 (5025 Metric) surface mount package. Manufactured by Panasonic Electronic Components, this resistor features anti-sulfur coating and automotive AEC-Q200 qualification, making it suitable for demanding automotive and industrial applications operating across -55°C to 155°C.

The ERJ-S1DF1403U remains in active production status. Identifying equivalent and substitute parts becomes necessary when managing supply chain continuity, optimizing inventory across multiple suppliers, or addressing component availability constraints while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

ERJ-S1DF1403U

Panasonic Electronic ComponentsIn Stock: 830ERJ-S1DF1403U Datasheet

Current PartRFQ

ERJ-12SF1403U

Panasonic Electronic ComponentsIn Stock: 5659ERJ-12SF1403U Datasheet

SimilarRFQ

RMCF2010FT140K

Stackpole Electronics IncIn Stock: 6441RMCF2010FT140K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERJ-S1DF1403U are qualified based on strict equivalence across the following parameters:

• Resistance value: 140 kOhms
• Tolerance: ±1%
• Power rating: 0.75W
• Package: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

All identified substitute parts meet these criteria without exception. Substitution is valid across manufacturers when all electrical and mechanical parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S1DF1403U and RMCF2010FT140K (Stackpole Electronics Inc) are both in active production status and represent the primary selection options for new designs. Both parts carry identical electrical and mechanical specifications with full AEC-Q200 automotive qualification and ROHS3 compliance.

The ERJ-12SF1403U (Panasonic) is marked as "Not For New Designs" and should be used only for legacy system maintenance or replacement applications where design continuity with existing assemblies is required.

All three parts are electrically and mechanically interchangeable within the specified parameter set. Selection between active-status parts should be based on supply chain availability, lead time, and cost considerations.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF1403U be used in new product designs?

A: No. The ERJ-12SF1403U carries a "Not For New Designs" status. For new designs, select either the ERJ-S1DF1403U or RMCF2010FT140K, both of which are in active production.

Q: Are all three parts mechanically identical?

A: Yes. All three parts use the 2010 (5025 Metric) package with identical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm) and maximum seated height of 0.028" (0.70mm). They are footprint-compatible and require no PCB layout modifications.

Q: What determines substitution eligibility?

A: Substitution is valid when resistance value, tolerance, power rating, package type, composition, temperature coefficient, operating temperature range, and automotive qualification (AEC-Q200) all match exactly. All three parts meet these criteria.

Q: Are there differences in anti-sulfur coating?

A: The ERJ-S1DF1403U specifies anti-sulfur coating. The ERJ-12SF1403U and RMCF2010FT140K do not list this feature in their specifications. For applications requiring anti-sulfur protection, the ERJ-S1DF1403U is the specified choice.

Q: What is the moisture sensitivity implication?

A: All three parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special moisture control requirements.