RK73H1HTTC10R2D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC10R2D is a 10.2 Ohm ±0.5% 0.05W (1/20W) chip resistor in 0201 package (0603 Metric) manufactured by KOA Speer Electronics, Inc. This component features automotive AEC-Q200 qualification, moisture-resistant thick film construction, and operates across -55°C to 155°C. 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

RK73H1HTTC10R2D

KOA Speer Electronics, Inc.In Stock: 945RK73H1HTTC10R2D Datasheet

Current PartRFQ

RK73H1HTTCM10R2D

KOA Speer Electronics, Inc.In Stock: 1059RK73H1HTTCM10R2D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC10R2D is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (10.2 Ohms), 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 Parameters: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W, 0.60mm x 0.30mm), and height (0.010" maximum seated) must match exactly to ensure PCB compatibility and assembly process compatibility.

Compliance & Quality Parameters: AEC-Q200 automotive qualification, thick film composition, MSL 1 rating, and ROHS3 compliance are mandatory for applications requiring automotive-grade reliability and regulatory adherence.

Substitute parts must originate from the same manufacturer series (RK73H) to ensure process consistency and performance predictability. Product status transition from "Not For New Designs" to "Active" is acceptable for substitution purposes.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM10R2D is a direct functional and mechanical equivalent to the RK73H1HTTC10R2D. Both components are manufactured by KOA Speer Electronics within the RK73H series and share identical electrical specifications, package geometry, and automotive compliance certifications.

The primary distinction is product lifecycle status: the original part is designated "Not For New Designs," while the substitute maintains "Active" status. This transition reflects standard component lifecycle management and does not indicate any change in electrical performance, reliability, or quality standards.

For applications requiring AEC-Q200 automotive-grade 10.2 Ohm ±0.5% resistors in 0201 package format, the RK73H1HTTCM10R2D provides full compatibility with existing designs and assembly processes. The substitute part maintains identical thermal performance (-55°C ~ 155°C operating range), moisture resistance (MSL 1), and regulatory compliance (ROHS3, REACH Unaffected).

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM10R2D be used as a direct replacement for RK73H1HTTC10R2D in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (10.2 Ohms), tolerance (±0.5%), power rating (0.05W), package type (0201), and automotive certifications (AEC-Q200). No circuit redesign or PCB layout modification is required.

Q: What is the significance of the product status change from "Not For New Designs" to "Active"?

A: Product status reflects manufacturer lifecycle management. "Not For New Designs" indicates the original part is being phased out, while "Active" status on the substitute confirms ongoing production and availability. The change does not affect electrical performance or reliability characteristics.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both parts measure 0.024" L x 0.012" W (0.60mm x 0.30mm) with a maximum seated height of 0.010" (0.26mm). They are fully compatible with existing PCB footprints and assembly equipment.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both RK73H1HTTC10R2D and RK73H1HTTCM10R2D carry AEC-Q200 automotive qualification, moisture-resistant thick film construction, and MSL 1 rating. They are suitable for automotive applications requiring high reliability standards.

Q: Is there any difference in temperature performance between these parts?

A: No. Both parts operate across -55°C to 155°C with identical temperature coefficient (±200ppm/°C). Thermal performance and stability are equivalent.

Q: What is the packaging format for both parts?

A: Both parts are supplied in 0201 package (0603 Metric) format. The original part is available in Tape & Reel (TR) packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.