RK73H1HTTC76R8D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC76R8D is a 76.8 Ohm ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in 0201 package format with 0.05W power rating. This component is rated for automotive applications under AEC-Q200 standard and features moisture-resistant construction suitable for harsh operating environments.

The RK73H1HTTC76R8D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identification of equivalent substitute parts is necessary for ongoing support of existing designs, legacy system maintenance, and procurement of replacement inventory where original stock becomes unavailable.

Substiute Parts

RK73H1HTTC76R8D

KOA Speer Electronics, Inc.In Stock: 1212RK73H1HTTC76R8D Datasheet

Current PartRFQ

RK73H1HTTCM76R8D

KOA Speer Electronics, Inc.In Stock: 1260RK73H1HTTCM76R8D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC76R8D is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (76.8 Ohms), tolerance (±0.5%), and power rating (0.05W) must be identical. Temperature coefficient (±200ppm/°C) and operating temperature range (-55°C to 155°C) establish thermal performance boundaries.

Mechanical Parameters: Package format (0201/0603 Metric) and physical dimensions (0.024" L × 0.012" W, 0.26mm max height) must match to ensure PCB compatibility and assembly process compatibility.

Compliance & Ratings: AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating are mandatory for applications requiring automotive-grade reliability and environmental compliance.

Composition & Construction: Thick film construction with moisture-resistant properties must be maintained to preserve performance characteristics in specified operating environments.

Substitute parts must satisfy all parameters listed above without exception. Parts differing in any electrical, mechanical, or compliance parameter are not considered equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM76R8D is the direct equivalent substitute for the RK73H1HTTC76R8D. Both components are manufactured by KOA Speer Electronics, Inc. and share identical electrical, mechanical, and compliance specifications across all critical parameters.

The primary distinction between these parts is product lifecycle status: the RK73H1HTTC76R8D is designated "Not For New Designs," while the RK73H1HTTCM76R8D maintains "Active" status. This indicates the RK73H1HTTCM76R8D represents the current production equivalent within the RK73H series.

For applications currently using the RK73H1HTTC76R8D, the RK73H1HTTCM76R8D provides direct functional and physical compatibility. Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 environmental compliance, and MSL 1 moisture sensitivity specifications. Substitution does not require design modification, PCB layout revision, or assembly process adjustment.

Current inventory availability shows 1153 units of the RK73H1HTTCM76R8D in stock compared to 1119 units of the original part, supporting procurement continuity for ongoing production and maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM76R8D be used as a direct replacement for the RK73H1HTTC76R8D without design changes?

A: Yes. The RK73H1HTTCM76R8D is electrically and mechanically identical to the RK73H1HTTC76R8D. All electrical parameters (76.8 Ohms ±0.5%, 0.05W, ±200ppm/°C), physical dimensions (0201 package, 0.024" × 0.012"), and compliance ratings (AEC-Q200, ROHS3, MSL 1) are equivalent. No PCB layout, schematic, or assembly modifications are required.

Q: Why is the RK73H1HTTC76R8D marked "Not For New Designs"?

A: "Not For New Designs" status indicates the manufacturer has transitioned this part to end-of-life in their product roadmap. The RK73H1HTTCM76R8D represents the active production equivalent. Existing designs using the original part remain fully supported; new designs should specify the active equivalent.

Q: Are there any differences in moisture handling or environmental performance between these parts?

A: No. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating and feature moisture-resistant thick film construction. Operating temperature range (-55°C to 155°C) and thermal performance characteristics are identical.

Q: What is the significance of the "M" designation in RK73H1HTTCM76R8D?

A: The "M" in the part number indicates a variant within the RK73H series. This variant maintains all functional and compliance specifications of the original part while reflecting the current production configuration.

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

A: Yes. Both parts are manufactured by KOA Speer Electronics, Inc., share identical specifications, and carry the same AEC-Q200 automotive qualification. They are functionally and physically interchangeable for all applications.

Q: What packaging formats are available for these parts?

A: The RK73H1HTTC76R8D is supplied in Tape & Reel (TR) format. Packaging information for the RK73H1HTTCM76R8D was not specified in available data; verify packaging format with the supplier for procurement requirements.