RK73B1HTTC150G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC150G is a 15 Ohm ±2% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format, manufactured by KOA Speer Electronics, Inc. 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

RK73B1HTTC150G

KOA Speer Electronics, Inc.In Stock: 956RK73B1HTTC150G Datasheet

Current PartRFQ

RK73B1HTTCM150G

KOA Speer Electronics, Inc.In Stock: 996RK73B1HTTCM150G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC150G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 15 Ohms (exact match required)
• Tolerance: ±2% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

• Package format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

Substitute parts must demonstrate identical performance across all listed parameters. No deviations in electrical specifications, package dimensions, or automotive certifications are permitted for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM150G serves as the direct equivalent substitute for the RK73B1HTTC150G. Both components 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 between these parts is product lifecycle status: the original RK73B1HTTC150G is designated "Not For New Designs," while the RK73B1HTTCM150G maintains "Active" status. This status change reflects manufacturing continuity and ongoing availability assurance.

For applications requiring AEC-Q200 automotive qualification, ROHS3 compliance, and the specified electrical characteristics (15 Ohms ±2%, 0.05W, ±200ppm/°C), the RK73B1HTTCM150G provides full functional and mechanical compatibility. Both parts are identical in package format (0201), thermal performance, and regulatory compliance certifications.

Selection between these parts should be based on supply chain availability and design phase requirements. For new designs, the active RK73B1HTTCM150G is the appropriate choice. For legacy system maintenance or existing inventory management, either part delivers equivalent performance.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM150G be used as a direct replacement for RK73B1HTTC150G in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (15 Ohms), tolerance (±2%), power rating (0.05W), package format (0201), temperature coefficient (±200ppm/°C), and automotive certifications (AEC-Q200). No circuit modifications or re-qualification is required.

Q: What is the significance of the "Not For New Designs" status on the RK73B1HTTC150G?

A: This designation indicates the part has reached end-of-life in the manufacturer's product roadmap. The RK73B1HTTCM150G is the active continuation within the same series. For new product development, the active part number should be specified to ensure long-term supply availability.

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both parts measure 0.024" L x 0.012" W (0.60mm x 0.30mm) with a maximum seated height of 0.010" (0.26mm). They are fully compatible for PCB layout and assembly processes.

Q: Do both parts meet the same automotive and compliance standards?

A: Yes. Both RK73B1HTTC150G and RK73B1HTTCM150G are AEC-Q200 qualified, ROHS3 compliant, and carry MSL 1 (Unlimited) moisture sensitivity ratings. They are suitable for identical automotive applications.

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

A: The main part (RK73B1HTTC150G) is specified as Tape & Reel (TR) packaging. The substitute part (RK73B1HTTCM150G) does not specify packaging format in the provided data. Confirm packaging requirements with the supplier before procurement.

Q: Can these parts be mixed in the same production batch?

A: From an electrical and mechanical standpoint, yes. Both parts are functionally equivalent. However, verify with your quality and supply chain procedures regarding part number consolidation and traceability requirements for your specific manufacturing environment.