ERJ-S1DF1782U Equivalent & Substitute Parts

Part Overview

The ERJ-S1DF1782U is a 17.8 kOhms ±1% thick film chip resistor rated at 0.75W (3/4W) in a 2010 (5025 Metric) surface mount package. This component is manufactured by Panasonic Electronic Components and is designed for automotive applications with AEC-Q200 qualification and anti-sulfur protection. The part is currently in active production status with 840 units in stock.

Finding equivalent and substitute parts becomes necessary when the primary part reaches end-of-life, experiences supply constraints, or when design flexibility is required for cost optimization or inventory management. The ERJ-S1DF1782U has documented substitutes within the Panasonic product family that maintain electrical and mechanical compatibility.

Substiute Parts

ERJ-S1DF1782U

Panasonic Electronic ComponentsIn Stock: 910ERJ-S1DF1782U Datasheet

Current PartRFQ

ERJ-12SF1782U

Panasonic Electronic ComponentsIn Stock: 7864ERJ-12SF1782U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1DF1782U is determined by strict equivalence across the following parameters:

• Resistance value: 17.8 kOhms
• Tolerance: ±1%
• Power rating: 0.75W (3/4W)
• 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

The ERJ-12SF1782U qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status and series designation within the Panasonic portfolio.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S1DF1782U is the preferred selection for new designs due to its active product status. This ensures long-term availability, ongoing manufacturing support, and compliance with current automotive standards.

The ERJ-12SF1782U is electrically and mechanically equivalent and maintains full AEC-Q200 automotive qualification and ROHS3 compliance. However, its "Not For New Designs" status indicates that Panasonic has transitioned this series. The ERJ-12SF1782U is suitable for replacement applications, legacy system maintenance, or situations where existing inventory must be utilized. The significantly higher available inventory (7779 units versus 840 units) may present supply advantages in specific procurement scenarios.

Both parts are manufactured by Panasonic Electronic Components and share identical electrical performance characteristics, dimensional specifications, and environmental ratings. Selection between them should be based on design phase requirements and supply chain strategy rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF1782U be used as a direct replacement for ERJ-S1DF1782U in automotive applications?

A: Yes. Both parts meet AEC-Q200 automotive qualification, maintain identical electrical specifications (17.8 kOhms ±1%, 0.75W), operate across the same temperature range (-55°C ~ 155°C), and use the same 2010 (5025 Metric) package. They are electrically and mechanically interchangeable.

Q: What is the significance of the "Not For New Designs" status on the ERJ-12SF1782U?

A: This designation indicates that Panasonic has moved the ERJ-12S series to end-of-life status and recommends the ERJ-S1D series for new product development. The ERJ-12SF1782U remains available and functional but should not be selected for designs entering production phases. It is appropriate for maintenance, repair, or replacement of existing systems.

Q: Are there dimensional differences between these parts?

A: No. Both parts share identical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm). They are pin-compatible and footprint-compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ERJ-S1DF1782U and ERJ-12SF1782U are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. They meet identical environmental and regulatory requirements.

Q: Which part should be selected for a new automotive design?

A: The ERJ-S1DF1782U should be selected for new designs due to its active product status. This ensures manufacturing continuity and long-term supply chain stability. The ERJ-12SF1782U is appropriate only for replacement or legacy system applications.