ERJ-S1DF3090U Equivalent & Substitute Parts

Part Overview

The ERJ-S1DF3090U is a 309 Ohms ±1% 0.75W chip resistor manufactured by Panasonic Electronic Components in the 2010 (5025 Metric) package. This thick film resistor is designed for automotive applications with AEC-Q200 qualification and anti-sulfur properties. The part is currently active in production with 803 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive compliance ratings are maintained across alternative manufacturers.

Substiute Parts

ERJ-S1DF3090U

Panasonic Electronic ComponentsIn Stock: 858ERJ-S1DF3090U Datasheet

Current PartRFQ

AC2010FK-07309RL

YAGEOIn Stock: 8621AC2010FK-07309RL Datasheet

SimilarRFQ

RMCF2010FT309R

Stackpole Electronics IncIn Stock: 4872RMCF2010FT309R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERJ-S1DF3090U are qualified based on the following criteria:

• Resistance value: 309 Ohms
• 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 compliance: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

All identified substitutes maintain these electrical and mechanical specifications, ensuring functional equivalence in automotive circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—ERJ-S1DF3090U, AC2010FK-07309RL, and RMCF2010FT309R—are active production components with ROHS3 compliance and AEC-Q200 automotive qualification. Selection between these parts is based on availability and supply chain requirements rather than electrical or mechanical performance differences. The AC2010FK-07309RL from YAGEO offers the lowest seated height at 0.026" (0.65mm), which may be advantageous in space-constrained applications. The ERJ-S1DF3090U and RMCF2010FT309R both have a seated height of 0.028" (0.70mm). All parts are suitable for direct substitution in automotive circuits operating within the specified temperature range.

Frequently Asked Questions (FAQ)

Q: Can AC2010FK-07309RL replace ERJ-S1DF3090U in automotive applications?

A: Yes. Both parts meet AEC-Q200 automotive qualification, share identical electrical specifications (309 Ohms ±1%, 0.75W), and are packaged in the 2010 (5025 Metric) case. The primary difference is the seated height: AC2010FK-07309RL is 0.026" (0.65mm) versus ERJ-S1DF3090U at 0.028" (0.70mm). This difference is within typical PCB design tolerances.

Q: What is the significance of the 2010 package designation?

A: The 2010 package (5025 Metric) specifies the physical dimensions of the chip resistor: 0.197" length by 0.098" width (5.00mm x 2.50mm). All substitute parts use this identical package, ensuring compatibility with existing PCB layouts and assembly processes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ERJ-S1DF3090U, AC2010FK-07309RL, and RMCF2010FT309R are all ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for automotive and industrial applications.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: Moisture Sensitivity Level 1 indicates the lowest moisture sensitivity classification. These parts do not require special moisture control during storage, handling, or assembly, simplifying supply chain management and manufacturing processes.

Q: Can these parts be used interchangeably in high-temperature automotive circuits?

A: Yes. All three parts operate across the identical temperature range of -55°C to 155°C with a temperature coefficient of ±100ppm/°C, ensuring consistent performance in automotive engine compartment and underbody applications.