Equivalent & Substitute Parts for RK73B1HTTC361G

Part Overview

The RK73B1HTTC361G is a 360 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 The part is currently classified as "Not For New Designs," indicating it has been superseded in the product line. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73B1HTTC361G

KOA Speer Electronics, Inc.In Stock: 795RK73B1HTTC361G Datasheet

Current PartRFQ

RK73B1HTTCM361G

KOA Speer Electronics, Inc.In Stock: 873RK73B1HTTCM361G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC361G is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (360 Ohms), tolerance (±2%), and power rating (0.05W) must be identical. Temperature coefficient (±200ppm/°C) and operating temperature range (-55°C ~ 155°C) define thermal performance boundaries and must match exactly.

Mechanical Parameters: Package format (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 be identical to ensure PCB footprint compatibility and assembly process compatibility.

Compliance & Ratings: Automotive AEC-Q200 qualification, RoHS3 compliance, and Moisture Sensitivity Level 1 are mandatory for equivalent substitution in automotive and regulated applications.

Composition: Thick film construction must be maintained to preserve electrical performance characteristics and reliability profiles.

Substitute parts must belong to the same product series (RK73B) or equivalent series from the same manufacturer to ensure manufacturing consistency and performance predictability.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM361G is the direct equivalent substitute for RK73B1HTTC361G. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73B series and share identical electrical, mechanical, and compliance specifications.

The primary distinction is product status: RK73B1HTTC361G is classified as "Not For New Designs," while RK73B1HTTCM361G is Active. For new design implementations and ongoing production, RK73B1HTTCM361G is the appropriate selection. For existing designs currently using RK73B1HTTC361G, transition to RK73B1HTTCM361G is supported without circuit modification or re-qualification, as all functional parameters remain equivalent.

Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and unlimited moisture sensitivity rating, ensuring suitability for automotive and industrial applications requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM361G be used as a direct replacement for RK73B1HTTC361G in existing designs?

A: Yes. Both parts are electrically and mechanically identical. All critical parameters—resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range—are equivalent. No circuit redesign or PCB layout modification is required.

Q: What is the significance of the product status difference between these parts?

A: RK73B1HTTC361G is marked "Not For New Designs," indicating it has been superseded. RK73B1HTTCM361G is Active and represents the current production equivalent. For new designs, RK73B1HTTCM361G should be specified. Existing inventory of RK73B1HTTC361G remains functionally valid for current applications.

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

A: Yes. Both parts use 0201 package format (0603 metric equivalent) with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints and assembly processes are identical.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both RK73B1HTTC361G and RK73B1HTTCM361G are AEC-Q200 qualified, ROHS3 compliant, and REACH unaffected. They are suitable for automotive and regulated industrial applications.

Q: Is there a difference in tolerance or temperature coefficient performance?

A: No. Both parts maintain ±2% tolerance and ±200ppm/°C temperature coefficient across the -55°C ~ 155°C operating range. Electrical performance characteristics are identical.

Q: What is the inventory status for these parts?

A: RK73B1HTTC361G has 705 pieces in stock. RK73B1HTTCM361G has 812 pieces in stock. Both are available as new original components.