ERJ-S1DF4991U Equivalent & Substitute Parts

Part Overview

The ERJ-S1DF4991U is a 4.99 kOhms ±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 active and currently in stock with 626 units available. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive compliance ratings are maintained across alternative manufacturers.

Substiute Parts

ERJ-S1DF4991U

Panasonic Electronic ComponentsIn Stock: 708ERJ-S1DF4991U Datasheet

Current PartRFQ

AC2010FK-074K99L

YAGEOIn Stock: 3912AC2010FK-074K99L Datasheet

SimilarRFQ

CRCW20104K99FKEF

Vishay DaleIn Stock: 5004CRCW20104K99FKEF Datasheet

SimilarRFQ

RMCF2010FT4K99

Stackpole Electronics IncIn Stock: 1654RMCF2010FT4K99 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERJ-S1DF4991U are qualified based on the following criteria:

• Identical resistance value: 4.99 kOhms
• Matching tolerance: ±1%
• Equivalent power rating: 0.75W (3/4W)
• Same package designation: 2010 (5025 Metric)
• Identical composition: Thick Film
• Matching temperature coefficient: ±100ppm/°C
• Identical operating temperature range: -55°C ~ 155°C
• Automotive compliance: AEC-Q200 certification
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

All substitute parts listed maintain these electrical and mechanical specifications, ensuring direct interchangeability in automotive applications.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and full compliance with ROHS3 and AEC-Q200 automotive standards. Selection among ERJ-S1DF4991U, AC2010FK-074K99L, CRCW20104K99FKEF, and RMCF2010FT4K99 can be based on availability and supply chain requirements, as all parts meet identical electrical and mechanical specifications. The AC2010FK-074K99L features a slightly reduced seated height of 0.026" (0.65mm) compared to the standard 0.028" (0.70mm) of the other variants, which may be relevant for space-constrained applications. All parts are suitable for direct substitution in automotive circuits requiring 4.99 kOhms ±1% 0.75W thick film resistors.

Frequently Asked Questions (FAQ)

Q: Can AC2010FK-074K99L be used as a direct replacement for ERJ-S1DF4991U?

A: Yes. Both parts share identical electrical specifications (4.99 kOhms ±1%, 0.75W, ±100ppm/°C, -55°C ~ 155°C), package designation (2010), composition (thick film), and automotive compliance (AEC-Q200, ROHS3). The AC2010FK-074K99L has a slightly lower seated height (0.026" vs 0.028"), which does not affect electrical performance.

Q: Are all substitute parts qualified for automotive applications?

A: Yes. All listed parts carry AEC-Q200 certification and are suitable for automotive circuit applications within the specified operating temperature range of -55°C ~ 155°C.

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

A: The 2010 package (5025 Metric) is a standardized SMD chip resistor footprint measuring 0.197" L x 0.098" W (5.00mm x 2.50mm). All substitute parts use this identical package, ensuring PCB footprint compatibility.

Q: Do all substitute parts have the same moisture sensitivity rating?

A: Yes. All parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably in production?

A: Yes. All parts meet identical electrical, mechanical, and compliance specifications, allowing interchangeable use based on supply availability and procurement requirements.