RK73H2ATTD22R6F Equivalent & Substitute Parts

Part Overview

The RK73H2ATTD22R6F is a 22.6 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in 0805 (2012 Metric) package format. This component is rated for 0.25W (1/4W) power dissipation and is designed for automotive applications with AEC-Q200 qualification and moisture resistance. The part is currently in active production status with 1405 units available in inventory. Equivalent and substitute parts are identified when applications require alternative sourcing, inventory replenishment, or when design flexibility permits component interchange within specified electrical and mechanical parameters.

Substiute Parts

RK73H2ATTD22R6F

KOA Speer Electronics, Inc.In Stock: 1488RK73H2ATTD22R6F Datasheet

Current PartRFQ

CRCW080522R6FKEA

Vishay DaleIn Stock: 1011CRCW080522R6FKEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H2ATTD22R6F is permissible when the following electrical and mechanical parameters are maintained or exceeded:

Resistance value must remain 22.6 Ohms with ±1% tolerance. Package format must be 0805 (2012 Metric) to ensure PCB footprint compatibility. Composition must be thick film. Temperature coefficient must be ±100ppm/°C or better. Operating temperature range must span -55°C to 155°C minimum. Automotive AEC-Q200 qualification is required. RoHS3 compliance and MSL 1 rating must be maintained.

The CRCW080522R6FKEA manufactured by Vishay Dale meets all substitution criteria. This part shares identical resistance, tolerance, package, composition, temperature coefficient, operating temperature range, AEC-Q200 rating, RoHS3 compliance, and MSL 1 classification. The primary difference is power rating: the substitute is rated for 0.125W (1/8W) versus the main part's 0.25W (1/4W). This difference permits substitution only in applications where the actual power dissipation does not exceed 0.125W.

Parameter Comparison

Engineering Selection Recommendations

The CRCW080522R6FKEA is a valid substitute for the RK73H2ATTD22R6F when circuit design permits. Both parts maintain active production status, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating. The substitute part is manufactured by Vishay Dale, an established supplier of automotive-grade resistors.

Selection between these parts depends on power dissipation requirements. The main part RK73H2ATTD22R6F provides 0.25W rated power, while the substitute CRCW080522R6FKEA is rated for 0.125W. In applications where actual power dissipation remains below 0.125W, the substitute provides equivalent performance. In applications requiring the full 0.25W power rating, the main part must be used.

Both parts are identical in physical dimensions (0.079" L x 1.25mm W), with the substitute exhibiting slightly lower maximum seated height (0.020" versus 0.024"). This minor height difference does not affect PCB assembly compatibility for standard 0805 footprints.

Frequently Asked Questions (FAQ)

Q: Can CRCW080522R6FKEA replace RK73H2ATTD22R6F in all applications?

A: Substitution is valid only when actual circuit power dissipation does not exceed 0.125W. The substitute part is rated for 1/8W power, while the main part is rated for 1/4W. If your application requires the full 0.25W power rating, the main part must be used.

Q: Are the physical dimensions identical?

A: Both parts use the 0805 (2012 Metric) package with identical length (0.079" / 2.00mm) and width (0.049" / 1.25mm). Maximum seated height differs slightly: RK73H2ATTD22R6F is 0.024" (0.60mm) and CRCW080522R6FKEA is 0.020" (0.50mm). This difference does not affect standard PCB assembly.

Q: Do both parts meet automotive requirements?

A: Yes. Both the RK73H2ATTD22R6F and CRCW080522R6FKEA carry AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating.

Q: What is the resistance tolerance for both parts?

A: Both parts are specified at 22.6 Ohms ±1% tolerance with ±100ppm/°C temperature coefficient.

Q: What is the operating temperature range?

A: Both parts operate across -55°C to 155°C, meeting automotive temperature requirements.