AC2010FK-072R2L Equivalent & Substitute Parts

Part Overview

The AC2010FK-072R2L is a 2.2 Ohm ±1% thick film chip resistor rated for 0.75W (3/4W) power dissipation in a 2010 (5025 Metric) surface mount package. Manufactured by YAGEO under the AC series, this component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently active in production with 649 units in stock.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance ratings are maintained across alternative manufacturers or product lines. This ensures design continuity and supply chain flexibility without compromising circuit performance or reliability requirements.

Key Parameters

Parameter	Specification
Resistance Value	2.2 Ohms
Tolerance	±1%
Power Rating	0.75W (3/4W)
Package / Case	2010 (5025 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
Moisture Resistance	Yes
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters:

Resistance value: 2.2 Ohms
Tolerance: ±1%
Power rating: 0.75W (3/4W)
Package: 2010 (5025 Metric)
Composition: Thick Film
Temperature coefficient: ±200ppm/°C
Operating temperature range: -55°C to 155°C
Moisture sensitivity level: MSL 1
RoHS compliance: ROHS3 Compliant

The identified substitutes maintain all electrical and mechanical specifications. The AC2010FK-072R2L includes automotive AEC-Q200 qualification. Substitute parts are categorized as follows:

MFR Recommended Substitute: RC2010FK-072R2L (YAGEO RC_L series) — same manufacturer, same package family, standard moisture-resistant construction without automotive-specific qualification.

Direct Manufacturer Substitute: RK73H2HTTE2R20F (KOA Speer Electronics RK73H series) — alternative manufacturer with equivalent automotive AEC-Q200 qualification and moisture-resistant construction.

Parameter Comparison

Parameter	AC2010FK-072R2L (Main)	RC2010FK-072R2L (MFR Recommended)	RK73H2HTTE2R20F (Direct Substitute)
Manufacturer	YAGEO	YAGEO	KOA Speer Electronics
Resistance	2.2 Ohms	2.2 Ohms	2.2 Ohms
Tolerance	±1%	±1%	±1%
Power Rating	0.75W	0.75W	0.75W
Package	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)
Composition	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±200ppm/°C	±200ppm/°C	±200ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Automotive AEC-Q200	Yes	No	Yes
Moisture Resistant	Yes	Yes	Yes
Height - Seated (Max)	0.026" (0.65mm)	0.026" (0.65mm)	0.028" (0.70mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 qualification: Both AC2010FK-072R2L and RK73H2HTTE2R20F are qualified. The RK73H2HTTE2R20F provides an alternative source from KOA Speer Electronics with equivalent automotive-grade specifications and higher inventory availability (11,211 units).

For general industrial applications without automotive requirements: RC2010FK-072R2L is suitable as a cost-effective alternative within the same YAGEO product family. This part maintains all electrical and mechanical specifications while omitting automotive-specific qualification.

Physical clearance consideration: The RK73H2HTTE2R20F has a maximum seated height of 0.028" (0.70mm) compared to 0.026" (0.65mm) for the AC2010FK-072R2L and RC2010FK-072R2L. Verify PCB layout clearance if height-constrained applications are present.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical electrical performance within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can RC2010FK-072R2L be used as a direct replacement for AC2010FK-072R2L in automotive circuits?

A: RC2010FK-072R2L matches all electrical and mechanical specifications but lacks AEC-Q200 automotive qualification. Use only in non-automotive applications or where automotive qualification is not a design requirement.

Q: What is the primary difference between AC2010FK-072R2L and RK73H2HTTE2R20F?

A: Both parts are AEC-Q200 qualified with identical electrical specifications. The difference is manufacturer (YAGEO vs. KOA Speer Electronics) and maximum seated height (0.65mm vs. 0.70mm). Both are suitable for automotive applications.

Q: Are all three parts interchangeable in the same PCB footprint?

A: Yes, all three parts use the 2010 (5025 Metric) package. However, verify PCB clearance for the RK73H2HTTE2R20F due to its 0.70mm maximum seated height compared to 0.65mm for the other two parts.

Q: Do these parts require special handling during assembly?

A: All three parts have MSL 1 (Unlimited) moisture sensitivity rating, requiring no special moisture control measures during storage or assembly.

Q: Which substitute offers the best supply availability?

A: RK73H2HTTE2R20F has the highest inventory at 11,211 units, followed by RC2010FK-072R2L at 2,011 units, and AC2010FK-072R2L at 649 units.

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