ERJ-S1DF2151U Equivalent & Substitute Parts

Part Overview

The ERJ-S1DF2151U is a 2.15 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 718 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when design revisions require alternative sourcing, or when inventory constraints require qualified alternatives from the same manufacturer's product line.

Substiute Parts

ERJ-S1DF2151U

Panasonic Electronic ComponentsIn Stock: 800ERJ-S1DF2151U Datasheet

Current PartRFQ

ERJ-12SF2151U

Panasonic Electronic ComponentsIn Stock: 10774ERJ-12SF2151U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1DF2151U is determined by strict equivalence across the following parameters:

• Resistance value: 2.15 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-12SF2151U meets all electrical and mechanical parameters required for direct substitution. The primary distinction is product status and series designation within the Panasonic product line.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S1DF2151U is the preferred selection for new designs due to its active product status. This part carries full manufacturer support and is recommended for all new applications requiring a 2.15 kOhms ±1% 0.75W thick film resistor in the 2010 package with automotive AEC-Q200 qualification.

The ERJ-12SF2151U is electrically and mechanically equivalent and is suitable for legacy design support or as a secondary source when primary inventory is constrained. However, this part carries a "Not For New Designs" status, indicating that Panasonic has transitioned this series to the ERJ-S1D line. Use of ERJ-12SF2151U should be limited to existing production runs or applications where design revision is not feasible.

Both parts maintain identical compliance certifications: ROHS3 compliance, AEC-Q200 automotive qualification, and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF2151U be used as a direct replacement for ERJ-S1DF2151U in automotive applications?

A: Yes. Both parts are electrically and mechanically identical with matching resistance (2.15 kOhms ±1%), power rating (0.75W), package (2010), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The primary difference is product lifecycle status.

Q: What is the significance of the "Not For New Designs" status on ERJ-12SF2151U?

A: This designation indicates that Panasonic has discontinued active development and marketing of the ERJ-12S series in favor of the ERJ-S1D series. While the part remains functionally equivalent and available in inventory, new designs should specify ERJ-S1DF2151U to ensure long-term supply continuity and manufacturer support.

Q: Are there any differences in packaging or handling between these two parts?

A: No. Both parts are supplied in Tape & Reel (TR) packaging with identical physical dimensions (0.197" L x 0.098" W / 5.00mm x 2.50mm) and height (0.028" / 0.70mm maximum seated height). Moisture sensitivity level is identical at MSL 1 (Unlimited).

Q: Do both parts meet the same compliance standards?

A: Yes. Both ERJ-S1DF2151U and ERJ-12SF2151U are ROHS3 compliant, REACH unaffected, and carry AEC-Q200 automotive qualification. They are functionally equivalent for all regulatory and certification purposes.

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

A: Specify ERJ-S1DF2151U. This part is in active production status and represents the current Panasonic product line for this resistance value and package combination. ERJ-12SF2151U should be reserved for legacy design support only.