ERJ-S1DF1870U Equivalent & Substitute Parts

Part Overview

The ERJ-S1DF1870U is a 187 Ohms ±1% 0.75W chip resistor in 2010 (5025 Metric) package manufactured by Panasonic Electronic Components. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently in active production status with 709 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life, experiences supply constraints, or when design requirements allow for functionally equivalent alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

ERJ-S1DF1870U

Panasonic Electronic ComponentsIn Stock: 770ERJ-S1DF1870U Datasheet

Current PartRFQ

ERJ-12SF1870U

Panasonic Electronic ComponentsIn Stock: 11103ERJ-12SF1870U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1DF1870U is determined by strict equivalence across the following parameters:

• Resistance value: 187 Ohms
• 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

The ERJ-12SF1870U qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status: ERJ-S1DF1870U is active production, while ERJ-12SF1870U is designated "Not For New Designs," indicating it is in mature or declining production phase.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production programs, the ERJ-S1DF1870U is the preferred selection due to its active production status and long-term availability assurance.

The ERJ-12SF1870U is suitable for replacement applications, legacy system maintenance, and field repairs where the part is already in use. Its "Not For New Designs" status indicates reduced long-term supply commitment from the manufacturer, making it unsuitable for new product development with extended production lifecycles.

Both parts carry identical electrical specifications, mechanical dimensions, automotive qualification (AEC-Q200), and regulatory compliance (ROHS3, REACH Unaffected). Selection between them should be based solely on program lifecycle requirements and supply chain strategy.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF1870U be used as a direct replacement for ERJ-S1DF1870U in existing assemblies?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including resistance, tolerance, power rating, package dimensions, temperature range, and AEC-Q200 automotive qualification. Pin-to-pin and footprint compatibility is complete.

Q: What is the significance of the "Not For New Designs" status on ERJ-12SF1870U?

A: This designation indicates the part is in mature production phase with no commitment to long-term availability. It should not be selected for new product development. It remains suitable for replacement stock and field service applications.

Q: Are there dimensional differences between the two parts?

A: No. Both 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).

Q: Do both parts meet automotive reliability standards?

A: Yes. Both ERJ-S1DF1870U and ERJ-12SF1870U carry AEC-Q200 qualification and are suitable for automotive applications within the specified operating temperature range of -55°C to 155°C.

Q: What is the difference between ERJ-S1D and ERJ-12S series designations?

A: The series designation reflects different product lines within Panasonic's resistor portfolio. ERJ-S1D represents the current active series, while ERJ-12S represents a legacy series. Despite different series names, the ERJ-12SF1870U maintains complete electrical and mechanical equivalence to ERJ-S1DF1870U for the 187 Ohm 1% 0.75W 2010 package specification.