RK73H1HTTC2001D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC2001D is a 2 kOhms ±0.5% 0.05W chip resistor in 0201 (0603 Metric) package manufactured by KOA Speer Electronics, Inc. This thick film resistor is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently classified as "Not For New Designs," necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73H1HTTC2001D

KOA Speer Electronics, Inc.In Stock: 822RK73H1HTTC2001D Datasheet

Current PartRFQ

RK73H1HTTCM2001D

KOA Speer Electronics, Inc.In Stock: 940RK73H1HTTCM2001D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC2001D is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (2 kOhms), tolerance (±0.5%), and power rating (0.05W) must be identical. Temperature coefficient (±200ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Specifications: Package type (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) ensure PCB compatibility and assembly process compatibility.

Compliance & Quality: AEC-Q200 automotive qualification, ROHS3 compliance, and Moisture Sensitivity Level 1 (Unlimited) are mandatory for equivalent substitution in automotive and regulated applications.

Product Status Consideration: Active production status is preferred for new procurement to ensure long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM2001D is the direct equivalent substitute for the RK73H1HTTC2001D. Both parts are manufactured by KOA Speer Electronics, Inc., within the RK73H series, and maintain identical electrical, mechanical, and compliance specifications. The primary distinction is product status: the substitute part is in active production, whereas the main part is designated "Not For New Designs."

For applications requiring the 2 kOhms ±0.5% 0.05W 0201 package resistor with AEC-Q200 automotive qualification, the RK73H1HTTCM2001D provides full functional and physical compatibility. Both parts satisfy ROHS3 compliance and Moisture Sensitivity Level 1 requirements, ensuring suitability for automotive and regulated environments.

Selection of the active substitute part ensures supply chain continuity and long-term component availability for production and maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM2001D be used as a direct replacement for the RK73H1HTTC2001D?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance (2 kOhms), tolerance (±0.5%), power rating (0.05W), package (0201), and automotive AEC-Q200 qualification. No circuit modifications or PCB layout changes are required.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The RK73H1HTTC2001D is classified as "Not For New Designs," while the RK73H1HTTCM2001D is in active production. All electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: Both parts use the 0201 (0603 Metric) package with identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and seated height (0.010" / 0.26mm maximum). They are mechanically interchangeable on PCBs designed for 0201 resistors.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both the RK73H1HTTC2001D and RK73H1HTTCM2001D carry AEC-Q200 automotive qualification, ROHS3 compliance, and Moisture Sensitivity Level 1 (Unlimited) rating, making them suitable for automotive and regulated applications.

Q: Why should I select the substitute part over the main part?

A: The substitute part (RK73H1HTTCM2001D) is in active production status, ensuring reliable long-term availability and supply chain support. The main part is designated "Not For New Designs," indicating it may face availability constraints in future procurement cycles.

Q: Are the temperature coefficients and operating ranges identical?

A: Yes. Both parts have a temperature coefficient of ±200ppm/°C and an operating temperature range of -55°C ~ 155°C, ensuring identical thermal performance characteristics.