AC2010FK-0748K7L Equivalent & Substitute Parts

Part Overview

The AC2010FK-0748K7L is a 48.7 kOhms ±1% thick film chip resistor rated for 0.75W (3/4W) power dissipation in a 2010 (5025 Metric) surface mount package. This component is manufactured by YAGEO and carries AEC-Q200 automotive qualification with moisture resistance. The part is currently in active production status with 798 units available in stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance ratings.

Substiute Parts

AC2010FK-0748K7L

YAGEOIn Stock: 833AC2010FK-0748K7L Datasheet

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CRCW201048K7FKEF

Vishay DaleIn Stock: 8239CRCW201048K7FKEF Datasheet

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ERJ-12SF4872U

Panasonic Electronic ComponentsIn Stock: 3242ERJ-12SF4872U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AC2010FK-0748K7L are qualified based on the following criteria:

• Identical resistance value: 48.7 kOhms
• Matching tolerance: ±1%
• Equivalent power rating: 0.75W (3/4W)
• Same package footprint: 2010 (5025 Metric)
• Identical composition: Thick Film
• Matching temperature coefficient: ±100ppm/°C
• Overlapping operating temperature range: -55°C ~ 155°C
• AEC-Q200 automotive qualification
• MSL 1 rating (Unlimited moisture sensitivity)
• ROHS3 compliance

All identified substitutes maintain these electrical and mechanical parameters, ensuring direct interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

CRCW201048K7FKEF (Vishay Dale) is the primary substitute for new designs. This part maintains active production status with all electrical and mechanical parameters identical to the AC2010FK-0748K7L. Inventory availability is 8209 units. The seated height of 0.028" (0.70mm) is within acceptable tolerance for 2010 package applications.

ERJ-12SF4872U (Panasonic) is available as an alternative with 3202 units in stock. However, this part carries a "Not For New Designs" product status designation. While all electrical specifications and compliance certifications are equivalent, this status indicates the manufacturer is phasing out this component. Use of this part should be limited to legacy system maintenance or applications where design freeze requirements apply.

Both substitutes are AEC-Q200 qualified, ROHS3 compliant, and maintain MSL 1 ratings identical to the original part.

Frequently Asked Questions (FAQ)

Q: Can CRCW201048K7FKEF be used as a direct replacement for AC2010FK-0748K7L?

A: Yes. Both parts share identical electrical specifications (48.7 kOhms ±1%, 0.75W), operate across the same temperature range (-55°C ~ 155°C), carry AEC-Q200 automotive qualification, and use the same 2010 (5025 Metric) package footprint. The maximum seated height difference (0.028" vs 0.026") is within standard PCB assembly tolerances for this package class.

Q: Why is ERJ-12SF4872U marked "Not For New Designs"?

A: This designation indicates the manufacturer (Panasonic) is discontinuing this product line. While the part meets all current electrical and compliance requirements, it should not be selected for new circuit designs. Existing inventory may be used for legacy system support or maintenance applications.

Q: Are all three parts interchangeable in automotive applications?

A: AC2010FK-0748K7L and CRCW201048K7FKEF are fully interchangeable for automotive use, both carrying active AEC-Q200 qualification. ERJ-12SF4872U also carries AEC-Q200 qualification but is not recommended for new automotive designs due to its discontinued status.

Q: What determines substitution eligibility for this resistor?

A: Substitution is based on matching resistance value (48.7 kOhms), tolerance (±1%), power rating (0.75W), package footprint (2010), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (AEC-Q200, ROHS3, MSL 1).

Q: Are there height differences between these parts?

A: The AC2010FK-0748K7L has a maximum seated height of 0.026" (0.65mm), while both CRCW201048K7FKEF and ERJ-12SF4872U have a maximum seated height of 0.028" (0.70mm). This 0.002" (0.05mm) difference is within standard PCB assembly specifications for 2010 package components and does not affect circuit functionality or board layout compatibility.