Equivalent & Substitute Parts for RK73H1HTTC2802F

Part Overview

The RK73H1HTTC2802F is a 28 kOhms ±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). This component meets AEC-Q200 automotive qualification standards and features moisture-resistant construction suitable for automotive and industrial applications operating across -55°C to 155°C.

The RK73H1HTTC2802F carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary to support existing designs, ensure supply chain continuity, and facilitate component procurement for legacy systems or high-volume production requirements.

Substiute Parts

RK73H1HTTC2802F

KOA Speer Electronics, Inc.In Stock: 19045RK73H1HTTC2802F Datasheet

Current PartRFQ

RK73H1HTTCM2802F

KOA Speer Electronics, Inc.In Stock: 1007RK73H1HTTCM2802F Datasheet

MFR RecommendedRFQ

AC0201FR-0728KL

YAGEOIn Stock: 10890AC0201FR-0728KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2802F are qualified based on strict electrical and mechanical parameter matching:

Qualifying Parameters for Substitution:

• Resistance value: 28 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• Moisture resistance: Yes (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• MSL rating: 1 (Unlimited) (exact match required)

Two substitute parts meet all qualifying parameters and are listed below.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM2802F (KOA Speer Electronics, Inc.)

This part is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. It maintains identical electrical and mechanical specifications to the main part while carrying an Active product status. Selection of this part ensures continuity within the same manufacturer's product line and supports long-term supply chain stability. Current inventory of 905 pieces is available.

AC0201FR-0728KL (YAGEO)

This part is a direct cross-reference substitute manufactured by YAGEO. It meets all electrical and mechanical parameters, carries Active product status, and is packaged in Tape & Reel format. Current inventory of 10,858 pieces provides robust supply availability. This part is suitable for applications where multi-source component qualification is required or where YAGEO supply chain partnerships are established.

Both substitute parts are fully qualified for direct replacement in applications currently using the RK73H1HTTC2802F, with no circuit redesign or re-qualification required.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2802F be used as a direct replacement for RK73H1HTTC2802F?

A: Yes. RK73H1HTTCM2802F is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. All electrical parameters (28 kOhms, ±1%, 0.05W), mechanical specifications (0201 package), temperature performance (±200ppm/°C, -55°C to 155°C), and automotive qualifications (AEC-Q200) are identical. The primary difference is product status: RK73H1HTTCM2802F is Active, while the original part is Not For New Designs.

Q: Can AC0201FR-0728KL be used as a direct replacement for RK73H1HTTC2802F?

A: Yes. AC0201FR-0728KL from YAGEO meets all electrical and mechanical specifications required for substitution. Resistance (28 kOhms), tolerance (±1%), power rating (0.05W), package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating range (-55°C to 155°C), and automotive qualification (AEC-Q200) are fully matched. This part is suitable for applications requiring multi-source qualification.

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

A: Substitution eligibility is determined by exact matching of: resistance value (28 kOhms), tolerance (±1%), power rating (0.05W), package type (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C to 155°C), AEC-Q200 automotive rating, moisture resistance, RoHS3 compliance, and MSL rating (1). Any deviation in these parameters disqualifies a part from direct substitution.

Q: Are there packaging differences between the substitute parts?

A: RK73H1HTTC2802F and AC0201FR-0728KL are both supplied in Tape & Reel (TR) packaging. RK73H1HTTCM2802F packaging type is not specified in available documentation. Confirm packaging requirements with your procurement or supply chain team if specific packaging format is mandated for your application.

Q: What is the significance of the "Not For New Designs" status on the main part?

A: "Not For New Designs" indicates that KOA Speer Electronics, Inc. has transitioned this part to legacy status and recommends using RK73H1HTTCM2802F for new designs. However, the original part remains suitable for existing designs and production support. Both substitute parts carry Active status, indicating ongoing manufacturer support and availability.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts—RK73H1HTTC2802F, RK73H1HTTCM2802F, and AC0201FR-0728KL—carry AEC-Q200 automotive qualification and are rated for the full automotive temperature range (-55°C to 155°C). All are suitable for automotive circuit applications.