Equivalent & Substitute Parts for RK73H1HTTC2002F

Part Overview

The RK73H1HTTC2002F is a 20 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., designed for 0.05W (1/20W) applications in the 0201 (0603 Metric) package format. This component is rated for automotive applications under AEC-Q200 and features moisture-resistant construction suitable for harsh operating environments.

The RK73H1HTTC2002F carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part to end-of-life or obsolescence management. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance of systems utilizing this resistor specification.

Substiute Parts

RK73H1HTTC2002F

KOA Speer Electronics, Inc.In Stock: 46790RK73H1HTTC2002F Datasheet

Current PartRFQ

RK73H1HTTCM2002F

KOA Speer Electronics, Inc.In Stock: 979RK73H1HTTCM2002F Datasheet

MFR RecommendedRFQ

AC0201FR-0720KL

YAGEOIn Stock: 84929AC0201FR-0720KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2002F are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters:

• Resistance value: 20 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

• Package / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 rating (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level 1 (required for reliability in moisture-prone environments)

Substitute parts must satisfy all electrical, mechanical, and compliance parameters without exception. Product status (Active vs. Not For New Designs) does not affect substitution eligibility but influences long-term availability considerations.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM2002F (KOA Speer Electronics, Inc.)

This part is the manufacturer-recommended substitute from KOA Speer Electronics. It maintains identical electrical and mechanical specifications to the main part while carrying Active product status, ensuring continued manufacturer support and long-term availability. Selection of this part preserves design continuity within the KOA Speer RK73H series and maintains consistency with existing supply chain relationships. However, inventory availability is limited at 919 pieces.

AC0201FR-0720KL (YAGEO)

This part is a direct cross-reference substitute from YAGEO, meeting all electrical, mechanical, and compliance requirements. The AC series thick film chip resistor provides equivalent performance characteristics with AEC-Q200 automotive qualification and ROHS3 compliance. This option offers superior inventory availability at 84,825 pieces and is packaged in Tape & Reel format, supporting high-volume production requirements. Selection of this part introduces a secondary manufacturer into the supply chain but does not compromise electrical or mechanical performance.

Both substitute parts satisfy all mandatory parameter requirements and are suitable for direct replacement in applications requiring the RK73H1HTTC2002F specification.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2002F be used as a direct replacement for RK73H1HTTC2002F?

A: Yes. RK73H1HTTCM2002F is the manufacturer-recommended substitute from KOA Speer Electronics. All electrical parameters (20 kOhms, ±1%, 0.05W), mechanical specifications (0201 package), and compliance ratings (AEC-Q200, ROHS3, MSL 1) are identical. The primary difference is product status: RK73H1HTTCM2002F is Active, while the original part is Not For New Designs.

Q: Can AC0201FR-0720KL from YAGEO replace RK73H1HTTC2002F?

A: Yes. AC0201FR-0720KL meets all substitution criteria: 20 kOhms ±1%, 0.05W power rating, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, AEC-Q200 automotive rating, ROHS3 compliance, and MSL 1. This part is a direct electrical and mechanical equivalent from an alternative manufacturer.

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

A: Substitution eligibility is determined by exact matching of: resistance value (20 kOhms), tolerance (±1%), power rating (0.05W), package format (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (AEC-Q200, ROHS3, MSL 1). Deviation from any of these parameters disqualifies a part from substitution.

Q: Does packaging format affect substitution?

A: Packaging format (Tape & Reel vs. other formats) does not affect electrical or mechanical substitution eligibility. However, packaging selection impacts procurement logistics, handling procedures, and production automation compatibility. Both substitute parts are available in Tape & Reel format, matching the original part's packaging specification.

Q: Why is the original part marked "Not For New Designs"?

A: "Not For New Designs" indicates that KOA Speer Electronics has transitioned the RK73H1HTTC2002F to end-of-life management. This status does not affect the part's technical performance or reliability but signals that the manufacturer is no longer recommending this specific part number for new circuit designs. Existing inventory remains available, and substitute parts with Active status are recommended for new applications.

Q: Are there any compliance or certification differences between the substitute parts?

A: No. All three parts (RK73H1HTTC2002F, RK73H1HTTCM2002F, and AC0201FR-0720KL) carry identical compliance certifications: AEC-Q200 automotive rating, ROHS3 compliance, and MSL 1 (Unlimited). All parts are suitable for automotive and moisture-sensitive applications.

Q: What inventory considerations should guide part selection?

A: AC0201FR-0720KL offers the highest inventory availability at 84,825 pieces, supporting large-volume production schedules. RK73H1HTTC2002F has 46,724 pieces available but carries Not For New Designs status. RK73H1HTTCM2002F has limited inventory at 919 pieces but is the manufacturer-recommended Active substitute. Inventory selection should align with production volume requirements and supply chain strategy.