RK73H1HTTC17R8F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC17R8F is a 17.8 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated for 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) surface mount package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC17R8F carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has transitioned this part to end-of-life status. Identification of equivalent and substitute parts is necessary for design continuity, inventory management, and ongoing production support for existing applications utilizing this resistor.

Substiute Parts

RK73H1HTTC17R8F

KOA Speer Electronics, Inc.In Stock: 6263RK73H1HTTC17R8F Datasheet

Current PartRFQ

RK73H1HTTCM17R8F

KOA Speer Electronics, Inc.In Stock: 786RK73H1HTTCM17R8F Datasheet

MFR RecommendedRFQ

AC0201FR-0717R8L

YAGEOIn Stock: 976AC0201FR-0717R8L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC17R8F are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 17.8 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Height (seated, max): 0.010" (0.26mm)
• Terminations: 2
• RoHS compliance: ROHS3
• MSL rating: 1 (Unlimited)

Substitute parts must match all critical parameters to ensure functional and mechanical compatibility within the original application circuit and assembly process.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM17R8F (KOA Speer Electronics, Inc. - MFR Recommended)

This part is the manufacturer-recommended successor to the RK73H1HTTC17R8F. It maintains identical electrical specifications, package dimensions, and AEC-Q200 automotive qualification. The primary distinction is active product status, indicating ongoing manufacturing and supply availability. This part is the preferred selection for design continuity within the KOA Speer Electronics product line. Note that moisture resistance is not explicitly specified for this variant; applications requiring moisture-resistant construction should reference the original part's moisture-resistant feature set.

AC0201FR-0717R8L (YAGEO - Direct Substitute)

This YAGEO part provides direct electrical and mechanical equivalence to the RK73H1HTTC17R8F. All critical parameters match, including resistance, tolerance, power rating, package dimensions, temperature coefficient, operating temperature range, and AEC-Q200 automotive qualification. The AC0201FR-0717R8L explicitly includes moisture-resistant construction, matching the original part's environmental protection specifications. Active product status ensures supply availability. This part is suitable for applications requiring cross-manufacturer substitution while maintaining full specification compliance.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM17R8F be used as a direct replacement for the RK73H1HTTC17R8F?

A: The RK73H1HTTCM17R8F matches all electrical and mechanical specifications of the RK73H1HTTC17R8F, including resistance value, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range. Both parts carry AEC-Q200 automotive qualification. However, moisture resistance is not explicitly specified for the RK73H1HTTCM17R8F, whereas the original part includes moisture-resistant construction. Applications requiring moisture-resistant properties should evaluate this specification difference.

Q: Is the AC0201FR-0717R8L compatible with existing PCB designs using the RK73H1HTTC17R8F?

A: Yes. The AC0201FR-0717R8L is mechanically and electrically compatible with the RK73H1HTTC17R8F. 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 maximum seated height (0.010" / 0.26mm). Electrical parameters are identical: 17.8 Ohms ±1%, 0.05W power rating, ±200ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature range. Both parts meet AEC-Q200 automotive standards and include moisture-resistant construction.

Q: What is the difference between the RK73H1HTTC17R8F and RK73H1HTTCM17R8F?

A: Both parts are manufactured by KOA Speer Electronics and share identical electrical specifications and package dimensions. The primary difference is product status: the RK73H1HTTC17R8F is classified as "Not For New Designs," indicating end-of-life status, while the RK73H1HTTCM17R8F is classified as "Active," indicating ongoing production and supply availability. The RK73H1HTTCM17R8F does not explicitly specify moisture resistance, whereas the original part includes this feature.

Q: Are all substitute parts RoHS compliant?

A: Yes. The RK73H1HTTC17R8F, RK73H1HTTCM17R8F, and AC0201FR-0717R8L are all ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating no moisture sensitivity restrictions during storage and handling.

Q: Can these parts be used interchangeably in automotive applications?

A: All three parts carry AEC-Q200 automotive qualification, meeting automotive industry reliability and quality standards. The RK73H1HTTC17R8F and AC0201FR-0717R8L both include explicit moisture-resistant construction. The RK73H1HTTCM17R8F does not specify moisture resistance. For automotive applications requiring moisture-resistant components, the RK73H1HTTC17R8F and AC0201FR-0717R8L are directly interchangeable. The RK73H1HTTCM17R8F is suitable for automotive applications where moisture resistance is not a specified requirement.

Q: What packaging formats are available for these parts?

A: The RK73H1HTTC17R8F and AC0201FR-0717R8L are supplied in Tape & Reel (TR) packaging. The RK73H1HTTCM17R8F packaging format is not specified in the available data. All parts use the 0201 (0603 Metric) surface mount package format.