AC2010FK-07124KL Equivalent & Substitute Parts

Part Overview

The AC2010FK-07124KL is a 124 kOhms ±1% 0.75W thick film chip resistor manufactured by YAGEO in the 2010 (5025 Metric) package format. This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently active in production with 874 units in stock. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory optimization, or manufacturer preference changes while maintaining identical electrical and mechanical specifications.

Substiute Parts

AC2010FK-07124KL

YAGEOIn Stock: 965AC2010FK-07124KL Datasheet

Current PartRFQ

RK73H2HTTE1243F

KOA Speer Electronics, Inc.In Stock: 4903RK73H2HTTE1243F Datasheet

DirectRFQ

RMCF2010FT124K

Stackpole Electronics IncIn Stock: 9098RMCF2010FT124K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AC2010FK-07124KL are qualified based on strict electrical and mechanical parameter matching:

Qualifying Criteria:

• Resistance value: 124 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
• Moisture sensitivity level: MSL 1
• RoHS compliance: ROHS3 Compliant

All identified substitutes meet these parameters without exception. Physical dimensions (length, width, and maximum seated height) remain within acceptable tolerances for PCB layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AC2010FK-07124KL (YAGEO), RK73H2HTTE1243F (KOA Speer), and RMCF2010FT124K (Stackpole)—are active production components with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts is determined by:

• Inventory availability: RMCF2010FT124K (Stackpole) has the highest stock level at 9024 units, followed by RK73H2HTTE1243F (KOA Speer) at 4845 units, and AC2010FK-07124KL (YAGEO) at 874 units.
• Manufacturer preference: Design specifications may designate a preferred manufacturer based on supply chain agreements or historical performance data.
• Physical height tolerance: AC2010FK-07124KL has a maximum seated height of 0.026" (0.65mm), while both substitute parts have 0.028" (0.70mm). This 0.002" difference is within standard PCB layout tolerances for most applications.

All parts are functionally interchangeable for applications requiring a 124 kOhms ±1% 0.75W thick film resistor in the 2010 package with automotive-grade specifications.

Frequently Asked Questions (FAQ)

Q: Can RK73H2HTTE1243F or RMCF2010FT124K be used as direct replacements for AC2010FK-07124KL?

A: Yes. Both parts meet all electrical and mechanical specifications. The 0.002" difference in maximum seated height between AC2010FK-07124KL and the substitute parts is within standard PCB design tolerances and does not affect circuit performance or board assembly.

Q: Are all three parts qualified for automotive applications?

A: Yes. All parts carry AEC-Q200 automotive qualification and are rated for the -55°C ~ 155°C operating temperature range required for automotive environments.

Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity level?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All three parts share this specification.

Q: Do all parts comply with RoHS regulations?

A: Yes. All three parts are ROHS3 compliant and meet current environmental and hazardous substance restrictions.

Q: Are there any differences in the thick film composition between manufacturers?

A: All three parts are specified as thick film composition with identical temperature coefficient (±100ppm/°C) and tolerance (±1%). Composition differences between manufacturers do not affect electrical performance within the specified parameters.

Q: Which part should be selected for new designs?

A: Selection should be based on manufacturer preference, supply chain strategy, and inventory availability. All three parts are functionally equivalent and suitable for new automotive designs requiring AEC-Q200 qualification.