RK73H1HTTC4873D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC4873D is a 487 kOhms ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package format. This component is rated for automotive applications under AEC-Q200 standard with moisture-resistant construction and operates across the temperature range of -55°C to 155°C.

The RK73H1HTTC4873D carries a product status designation of "Not For New Designs," indicating that while the component remains available in inventory (1068 Pcs), it has been superseded in the manufacturer's active product line. Identification of equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this resistor specification is required.

Substiute Parts

RK73H1HTTC4873D

KOA Speer Electronics, Inc.In Stock: 1107RK73H1HTTC4873D Datasheet

Current PartRFQ

RK73H1HTTCM4873D

KOA Speer Electronics, Inc.In Stock: 994RK73H1HTTCM4873D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC4873D is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 487 kOhms
• Tolerance: ±0.5%
• Power rating: 0.05W (1/20W)
• Package format: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive rating: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: MSL 1

Substitute parts must satisfy all mandatory parameters without deviation. The primary distinction between the main part and its substitute relates to product lifecycle status and specific feature sets (moisture resistance designation), not to electrical or mechanical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM4873D is the direct equivalent substitute for RK73H1HTTC4873D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and provide identical electrical and mechanical performance across all specified parameters.

The primary distinction is product lifecycle status: RK73H1HTTC4873D is designated "Not For New Designs," while RK73H1HTTCM4873D carries "Active" status. For applications requiring long-term component availability and manufacturer support, RK73H1HTTCM4873D is the preferred selection. Both parts maintain full compliance with AEC-Q200 automotive standards, ROHS3 environmental regulations, and REACH requirements.

Selection between these parts should be based on supply chain requirements and design timeline considerations. The electrical and mechanical interchangeability is complete across all operating conditions within the specified temperature range of -55°C to 155°C.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM4873D be used as a direct replacement for RK73H1HTTC4873D in existing designs?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including resistance value, tolerance, power rating, package format, temperature coefficient, and operating temperature range. Direct substitution is valid for all applications.

Q: What is the difference between RK73H1HTTC4873D and RK73H1HTTCM4873D?

A: The components are functionally equivalent. The primary difference is product lifecycle status: RK73H1HTTC4873D is designated "Not For New Designs," while RK73H1HTTCM4873D is in "Active" production status. Both maintain identical electrical specifications and automotive AEC-Q200 certification.

Q: Are both parts suitable for automotive applications?

A: Yes. Both RK73H1HTTC4873D and RK73H1HTTCM4873D are rated to AEC-Q200 automotive standards and are suitable for automotive circuit applications within the specified operating temperature range of -55°C to 155°C.

Q: Does the 0201 package format remain consistent between these parts?

A: Yes. Both components use the 0201 (0603 Metric) package format with identical physical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB layout and assembly processes require no modification.

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

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture-related storage or handling restrictions. Standard component storage conditions are applicable.

Q: Are these parts RoHS compliant?

A: Yes. Both RK73H1HTTC4873D and RK73H1HTTCM4873D are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.