Equivalent & Substitute Parts for RK73B1HTTC223G

Part Overview

The RK73B1HTTC223G is a 22 kOhms ±2% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format, manufactured by KOA Speer Electronics, Inc. This component meets automotive AEC-Q200 qualification standards and operates across the temperature range of -55°C to 155°C. The part is currently classified as Not For New Designs, indicating it has been superseded in the product lifecycle. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73B1HTTC223G

KOA Speer Electronics, Inc.In Stock: 867RK73B1HTTC223G Datasheet

Current PartRFQ

RK73B1HTTCM223G

KOA Speer Electronics, Inc.In Stock: 1092RK73B1HTTCM223G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC223G is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (22 kOhms), tolerance (±2%), power rating (0.05W), and temperature coefficient (±200ppm/°C) must remain identical. These parameters define the functional performance of the resistor in circuit operation.

Mechanical Parameters: Package format (0201), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and number of terminations (2) must match exactly to ensure PCB compatibility and assembly process compatibility.

Environmental & Compliance Parameters: Operating temperature range (-55°C ~ 155°C), automotive AEC-Q200 qualification, RoHS3 compliance, and MSL rating (1) must be maintained to satisfy application requirements and regulatory obligations.

Composition & Construction: Thick film construction type must be preserved to maintain electrical characteristics and thermal behavior.

The substitute part RK73B1HTTCM223G meets all these criteria and represents the active product alternative within the RK73B series.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM223G is the direct substitute for RK73B1HTTC223G based on complete electrical and mechanical equivalence. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73B series and share identical specifications across all critical parameters: 22 kOhms resistance, ±2% tolerance, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, and -55°C to 155°C operating range.

The primary distinction is product lifecycle status: RK73B1HTTC223G is classified as Not For New Designs, while RK73B1HTTCM223G maintains Active status. This transition reflects standard product management practices and indicates that RK73B1HTTCM223G represents the current recommended part for ongoing production and new design implementations.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and MSL 1 moisture sensitivity rating, making them suitable for automotive and industrial applications requiring environmental robustness and regulatory adherence.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM223G be used as a direct replacement for RK73B1HTTC223G in existing designs?

A: Yes. The parts are electrically and mechanically identical across all specified parameters. Direct substitution is supported without circuit modification or re-qualification.

Q: What is the significance of the product status difference (Not For New Designs vs. Active)?

A: Product status indicates lifecycle position. Not For New Designs means the part is being phased out; Active means the part is in current production. For new designs, RK73B1HTTCM223G should be selected. For existing designs using RK73B1HTTC223G, transition to RK73B1HTTCM223G is recommended to ensure long-term supply availability.

Q: Are the physical dimensions and package compatibility identical?

A: Yes. Both parts use 0201 package format with identical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). PCB footprints and assembly processes are fully compatible.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73B1HTTC223G and RK73B1HTTCM223G carry AEC-Q200 automotive qualification and operate across -55°C to 155°C, meeting automotive environmental and reliability requirements.

Q: What is the difference in packaging between the two parts?

A: The main part specifies Tape & Reel (TR) packaging. The substitute part does not specify packaging format in the provided data. Confirm packaging requirements with the supplier to ensure compatibility with assembly processes.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (Unlimited) moisture sensitivity ratings. Regulatory and environmental compliance is equivalent.