RK73B1HTTC182G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC182G is a 1.8 kOhms ±2% thick film chip resistor in 0201 package (0603 Metric) rated for 0.05W power dissipation. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73B1HTTC182G

KOA Speer Electronics, Inc.In Stock: 1048RK73B1HTTC182G Datasheet

Current PartRFQ

RK73B1HTTCM182G

KOA Speer Electronics, Inc.In Stock: 1035RK73B1HTTCM182G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC182G is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (1.8 kOhms), tolerance (±2%), power rating (0.05W), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C) must be identical.

Mechanical Specifications: Package type (0201), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and maximum seated height (0.010" / 0.26mm) must match exactly.

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

Composition: Thick film construction is required.

Substitute parts must originate from the same manufacturer series (RK73B) or equivalent automotive-grade thick film resistor lines that satisfy all parameters listed above. Product status transition from "Not For New Designs" to "Active" is permissible for substitution purposes.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM182G serves as the direct active equivalent to the RK73B1HTTC182G. Both components are manufactured by KOA Speer Electronics within the RK73B series and maintain identical electrical, mechanical, and compliance specifications.

For New Production: The RK73B1HTTCM182G is the appropriate selection due to its Active product status, ensuring long-term availability and manufacturer support.

For Maintenance & Repair: Either part number is functionally equivalent. Selection may be based on inventory availability and supply chain considerations.

Compliance Assurance: Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating, satisfying automotive and industrial application requirements.

Packaging Consideration: The main part is specified in Tape & Reel (TR) packaging. Substitute part packaging information is not provided in available data; packaging format should be confirmed with the supplier for procurement purposes.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM182G be used as a direct replacement for RK73B1HTTC182G?

A: Yes. Both parts are electrically and mechanically identical with matching resistance (1.8 kOhms ±2%), power rating (0.05W), package (0201), temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The substitute part is currently in Active production status.

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

A: This designation indicates the manufacturer is transitioning away from this part number for new product development. The Active equivalent (RK73B1HTTCM182G) should be used for new designs and ongoing production to ensure sustained availability.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both components share identical 0201 package dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm), ensuring compatibility with existing PCB layouts and assembly processes.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the RK73B1HTTC182G and RK73B1HTTCM182G carry AEC-Q200 qualification and are ROHS3 compliant, meeting automotive industry requirements.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. RK73B1HTTC182G is classified as "Not For New Designs," while RK73B1HTTCM182G is Active. All electrical, mechanical, and compliance specifications are identical. Packaging format may differ; confirm with supplier.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes. Identical specifications across resistance, tolerance, power rating, package type, and temperature range permit direct interchangeability in circuit applications.