RK73B1HTTC151G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC151G is a 150 Ohm ±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 automotive AEC-Q200 qualification standards. The part is currently classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

RK73B1HTTC151G

KOA Speer Electronics, Inc.In Stock: 971RK73B1HTTC151G Datasheet

Current PartRFQ

RK73B1HTTCM151G

KOA Speer Electronics, Inc.In Stock: 757RK73B1HTTCM151G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC151G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 150 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)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)
• Height seated maximum: 0.010" (0.26mm) (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

Substitute parts must match all electrical, mechanical, and compliance parameters. Variations in any parameter disqualify a part from substitution consideration.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM151G is the manufacturer-recommended substitute for the RK73B1HTTC151G. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73B series and maintain complete electrical and mechanical equivalence across all specified parameters.

Selection Basis:

The RK73B1HTTCM151G provides direct substitution capability because it maintains identical electrical characteristics (150 Ohms ±2%, 0.05W power rating, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range), identical mechanical form factor (0201 package, 0.60mm x 0.30mm dimensions, 0.26mm maximum height), and identical compliance certifications (AEC-Q200 automotive qualification, ROHS3 compliance, MSL 1).

The primary distinction is product status: the RK73B1HTTCM151G is classified as Active, whereas the RK73B1HTTC151G is Not For New Designs. This status change reflects the manufacturer's product lifecycle management and indicates that the substitute part represents the current production standard for this specification.

For applications requiring 150 Ohm ±2% thick film chip resistors in 0201 package format with automotive AEC-Q200 qualification, the RK73B1HTTCM151G is the appropriate selection for new designs and ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM151G be used as a direct replacement for RK73B1HTTC151G in existing designs?

A: Yes. The RK73B1HTTCM151G is electrically and mechanically equivalent to the RK73B1HTTC151G. All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range) are identical. Physical dimensions and package format are identical. Both parts meet AEC-Q200 automotive qualification and ROHS3 compliance requirements. Direct substitution is supported at the component level.

Q: What is the significance of the "Not For New Designs" status on the RK73B1HTTC151G?

A: This status indicates that the RK73B1HTTC151G has been superseded in the manufacturer's product line. While existing inventory remains available and the part continues to function within its specified parameters, KOA Speer Electronics, Inc. recommends using the RK73B1HTTCM151G for new design implementations. This transition ensures alignment with current manufacturing standards and supply chain continuity.

Q: Are there any differences in packaging or tape specifications between these parts?

A: The main part (RK73B1HTTC151G) is specified as Tape & Reel (TR) packaging. The substitute part (RK73B1HTTCM151G) does not have packaging specification provided in the available data. For applications requiring specific packaging formats, packaging specifications should be confirmed with the supplier or manufacturer documentation.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the RK73B1HTTC151G and RK73B1HTTCM151G carry AEC-Q200 automotive qualification ratings. This certification applies to both parts and indicates compliance with automotive industry reliability and performance standards.

Q: What is the moisture sensitivity level for these resistors?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, which indicates Unlimited moisture sensitivity. This means the components do not require special moisture control measures during storage, handling, or assembly processes.

Q: Are these parts RoHS compliant?

A: Yes. Both the RK73B1HTTC151G and RK73B1HTTCM151G are ROHS3 compliant, indicating conformance to the Restriction of Hazardous Substances directive requirements.