Equivalent & Substitute Parts for RK73H1HTTC7323F

Part Overview

The RK73H1HTTC7323F is a 732 kOhm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 package (0.60mm x 0.30mm metric). This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently marked 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

RK73H1HTTC7323F

KOA Speer Electronics, Inc.In Stock: 1053RK73H1HTTC7323F Datasheet

Current PartRFQ

RK73H1HTTCM7323F

KOA Speer Electronics, Inc.In Stock: 749RK73H1HTTCM7323F Datasheet

MFR RecommendedRFQ

AC0201FR-07732KL

YAGEOIn Stock: 1009AC0201FR-07732KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC7323F is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (732 kOhms), tolerance (±1%), power rating (0.05W), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C) must be identical.

Mechanical Parameters: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and number of terminations (2) must match exactly.

Compliance & Features: AEC-Q200 automotive qualification, moisture-resistant construction, ROHS3 compliance, and MSL 1 rating are mandatory for substitution in automotive applications.

Composition: Thick film construction must be maintained.

Substitute parts are grouped into two categories: (1) Manufacturer-recommended alternatives from KOA Speer Electronics, Inc., and (2) direct cross-reference parts from alternative manufacturers meeting identical specifications.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM7323F (KOA Speer Electronics, Inc.): This is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. It maintains active product status and carries identical electrical specifications, package dimensions, and compliance certifications. The primary distinction is that moisture resistance is not explicitly specified in the available documentation, whereas the original part includes this feature. For applications requiring confirmed moisture-resistant construction, this specification gap should be clarified with the manufacturer before selection.

AC0201FR-07732KL (YAGEO): This part provides a direct cross-reference alternative from YAGEO with confirmed active product status. All electrical parameters, mechanical dimensions, AEC-Q200 automotive qualification, moisture-resistant construction, and compliance certifications are identical to the original RK73H1HTTC7323F. This part is suitable for direct substitution in automotive applications where component sourcing flexibility is required.

Both substitute parts satisfy the mandatory criteria for automotive-grade 732 kOhm ±1% 0.05W 0201 chip resistors with AEC-Q200 qualification and ROHS3 compliance. Selection between them should be based on supply chain availability, procurement lead times, and any design-specific preferences for manufacturer sourcing.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM7323F be used as a direct replacement for RK73H1HTTC7323F?

A: RK73H1HTTCM7323F is the manufacturer-recommended substitute and matches all critical electrical and mechanical parameters. However, moisture resistance is not explicitly documented for this variant. Confirm moisture-resistant requirements with KOA Speer Electronics, Inc. before final selection if this feature is critical to your application.

Q: Is AC0201FR-07732KL from YAGEO fully compatible with the original KOA part?

A: Yes. AC0201FR-07732KL meets all specified electrical parameters (732 kOhms ±1%, 0.05W), mechanical dimensions (0201 package), operating temperature range (-55°C ~ 155°C), AEC-Q200 automotive qualification, moisture-resistant construction, and ROHS3 compliance. It is suitable for direct substitution.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution requires exact matching of: resistance value (732 kOhms), tolerance (±1%), power rating (0.05W), package type (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), AEC-Q200 rating, moisture resistance, ROHS3 compliance, and MSL 1 rating.

Q: Why is the original RK73H1HTTC7323F marked as Not For New Designs?

A: This designation indicates the part is in mature or end-of-life status. Active alternatives (RK73H1HTTCM7323F and AC0201FR-07732KL) should be used for new design implementations to ensure long-term supply availability and manufacturer support.

Q: Are there any packaging differences between these parts?

A: All three parts use identical 0201 (0603 Metric) packaging with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). They are mechanically interchangeable on PCB layouts.

Q: Do all substitute parts carry automotive AEC-Q200 qualification?

A: Yes. Both RK73H1HTTCM7323F and AC0201FR-07732KL carry AEC-Q200 automotive qualification, meeting the same reliability and qualification standards as the original part.