RK73B1HTTC154G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC154G is a 150 kOhms ±2% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated for 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) surface mount package. This component is designed for automotive applications and meets AEC-Q200 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

RK73B1HTTC154G

KOA Speer Electronics, Inc.In Stock: 827RK73B1HTTC154G Datasheet

Current PartRFQ

RK73B1HTTCM154G

KOA Speer Electronics, Inc.In Stock: 947RK73B1HTTCM154G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC154G is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (150 kOhms), tolerance (±2%), power rating (0.05W), and temperature coefficient (±200ppm/°C) must be identical. These parameters define the functional performance of the resistor in circuit applications.

Mechanical Specifications: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and seated height (0.010" / 0.26mm maximum) must match to ensure compatibility with printed circuit board layouts and assembly processes.

Compliance & Ratings: AEC-Q200 automotive qualification, operating temperature range (-55°C ~ 155°C), RoHS3 compliance, and MSL rating (1 / Unlimited) must be maintained for applications requiring automotive-grade reliability and regulatory adherence.

Series Consistency: Parts must belong to the RK73B series to ensure manufacturing consistency and performance predictability.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM154G is the direct equivalent substitute for the RK73B1HTTC154G. Both parts are manufactured by KOA Speer Electronics, Inc., within the RK73B series, and maintain identical electrical and mechanical specifications across all critical parameters.

The primary distinction is product status: the original part (RK73B1HTTC154G) is classified as Not For New Designs, while the substitute (RK73B1HTTCM154G) maintains Active status. This status change reflects manufacturing lifecycle management and does not indicate any change in component performance, reliability, or compliance.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1) ratings. The substitute part is suitable for direct replacement in existing designs and for new production applications requiring 150 kOhms ±2% thick film resistors in 0201 package format with automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM154G be used as a direct replacement for RK73B1HTTC154G?

A: Yes. Both parts are electrically and mechanically identical. The RK73B1HTTCM154G is the active production equivalent and can be substituted without circuit redesign or board layout modification.

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

A: This designation indicates the part has reached end-of-life in the manufacturer's product roadmap. The substitute part (RK73B1HTTCM154G) with Active status is the recommended production source for ongoing applications.

Q: Are there any differences in reliability or performance between these two parts?

A: No. Both parts meet identical AEC-Q200 automotive qualification standards, operate across the same temperature range (-55°C ~ 155°C), and maintain the same tolerance (±2%) and temperature coefficient (±200ppm/°C).

Q: Can these parts be used interchangeably in automated assembly processes?

A: Yes. Both parts are supplied in 0201 (0603 Metric) package format with identical physical dimensions and termination specifications, ensuring compatibility with standard surface mount assembly equipment and processes.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both maintain MSL rating 1 (Unlimited moisture sensitivity level).