RK73B1HTTC273G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC273G is a 27 kOhms ±2% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and meets AEC-Q200 automotive qualification standards. The part is currently classified as Not For New Designs, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73B1HTTC273G

KOA Speer Electronics, Inc.In Stock: 1150RK73B1HTTC273G Datasheet

Current PartRFQ

RK73B1HTTCM273G

KOA Speer Electronics, Inc.In Stock: 862RK73B1HTTCM273G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC273G is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (27 kOhms), tolerance (±2%), power rating (0.05W), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C) must be identical.

Mechanical Parameters: Package format (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and number of terminations (2) must match exactly.

Compliance Parameters: AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating must be maintained.

Composition: Thick film construction is required.

Parts meeting all these criteria are classified as direct substitutes. The primary distinction between the main part and its substitute relates to product lifecycle status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM273G is the direct substitute for RK73B1HTTC273G. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73B series and maintain identical electrical, mechanical, and compliance specifications. The substitute part carries Active product status, whereas the main part is designated Not For New Designs.

For applications requiring continued supply of 27 kOhms ±2% 0.05W thick film chip resistors in 0201 package with AEC-Q200 automotive qualification, the RK73B1HTTCM273G provides full functional and physical compatibility. Both parts satisfy ROHS3 compliance, REACH requirements, and MSL 1 moisture sensitivity specifications.

The distinction between these part numbers reflects manufacturing or packaging configuration changes within the same product family. Selection between them should be based on current inventory availability and supply chain requirements, as electrical and mechanical performance are equivalent.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM273G be used as a direct replacement for RK73B1HTTC273G in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (27 kOhms), tolerance (±2%), power rating (0.05W), package format (0201), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. Physical dimensions and termination count are identical.

Q: What is the significance of the "Not For New Designs" status on RK73B1HTTC273G?

A: This designation indicates the part is in end-of-life phase and should not be selected for new product development. The RK73B1HTTCM273G, with Active status, is the recommended choice for new designs requiring this specification.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain ROHS3 compliance, REACH Unaffected status, MSL 1 rating, and AEC-Q200 automotive qualification. Regulatory and environmental compliance is equivalent.

Q: Do these parts have different packaging options?

A: The main part is specified as Tape & Reel (TR) packaging. The substitute part packaging information is not specified in available data. Confirm packaging requirements with your supplier before procurement.

Q: What parameters must remain constant for a part to be considered a substitute for RK73B1HTTC273G?

A: Resistance value, tolerance, power rating, package format, composition, temperature coefficient, operating temperature range, and AEC-Q200 rating must all be identical. Any deviation in these parameters disqualifies a part as a direct substitute.

Q: Can parts from other manufacturers substitute for this KOA Speer component?

A: Substitution from other manufacturers is possible only if all electrical, mechanical, and compliance specifications are identical. However, such substitutes are not identified in the provided data. Consult component datasheets and qualification documentation to verify equivalence.