Equivalent & Substitute Parts for RK73H1HTTC2001F

Part Overview

The RK73H1HTTC2001F is a 2 kOhms ±1% thick film chip resistor in 0201 package format, rated for 0.05W (1/20W) power dissipation. Manufactured by KOA Speer Electronics, Inc., this component meets AEC-Q200 automotive qualification standards and incorporates moisture-resistant construction suitable for demanding automotive and industrial applications.

The RK73H1HTTC2001F carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part number to obsolescence or replacement. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support existing production requirements for systems currently utilizing this component.

Substiute Parts

RK73H1HTTC2001F

KOA Speer Electronics, Inc.In Stock: 515367RK73H1HTTC2001F Datasheet

Current PartRFQ

RK73H1HTTCM2001F

KOA Speer Electronics, Inc.In Stock: 902RK73H1HTTCM2001F Datasheet

MFR RecommendedRFQ

AC0201FR-072KL

YAGEOIn Stock: 25274AC0201FR-072KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2001F are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match Exactly):

• Resistance value: 2 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match Exactly):

• Package / Case: 0201 (0603 Metric)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Height - Seated (Max): 0.010" (0.26mm)
• Number of terminations: 2

Compliance & Certification (Must Match or Exceed):

• AEC-Q200 automotive qualification
• Moisture-resistant thick film construction
• RoHS3 compliance
• MSL 1 rating

Substitute parts identified below satisfy all mandatory electrical, mechanical, and compliance requirements, ensuring direct functional and physical interchangeability within the specified application constraints.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM2001F (KOA Speer Electronics, Inc.)

This part represents the manufacturer-recommended upgrade path from the obsolete RK73H1HTTC2001F. Both components are manufactured by KOA Speer Electronics and share identical electrical and mechanical specifications. The RK73H1HTTCM2001F carries an "Active" product status, confirming ongoing manufacturing support and supply chain availability. Selection of this part number ensures continuity with the original design intent while transitioning to a supported product line. Current inventory availability is 851 pieces.

AC0201FR-072KL (YAGEO)

This part provides cross-manufacturer substitution from YAGEO, an alternative qualified supplier. The AC0201FR-072KL meets all electrical, mechanical, and compliance requirements specified for the RK73H1HTTC2001F, including AEC-Q200 automotive qualification and RoHS3 compliance. The component is supplied in Tape & Reel (TR) packaging format. Current inventory availability is 25,192 pieces, providing superior supply chain depth compared to the KOA alternative. Selection of this part is appropriate when supply constraints or procurement preferences favor YAGEO components.

Both substitute parts are suitable for direct replacement in existing designs and production environments. Selection between them should be based on packaging requirements, supply chain preferences, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTC2001F be directly replaced with RK73H1HTTCM2001F?

A: Yes. Both parts are manufactured by KOA Speer Electronics and possess identical electrical specifications (2 kOhms ±1%, 0.05W), mechanical dimensions (0201 package), and compliance certifications (AEC-Q200, RoHS3, MSL 1). The RK73H1HTTCM2001F is the manufacturer-recommended active replacement for the obsolete RK73H1HTTC2001F.

Q: Can the RK73H1HTTC2001F be replaced with AC0201FR-072KL from YAGEO?

A: Yes. The AC0201FR-072KL meets all specified electrical and mechanical parameters, including resistance value, tolerance, power rating, temperature coefficient, operating temperature range, and package dimensions. Both components carry AEC-Q200 automotive qualification and RoHS3 compliance. Cross-manufacturer substitution is permissible based on parameter equivalence.

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

A: Substitution eligibility is determined by exact matching of: resistance value (2 kOhms), tolerance (±1%), power rating (0.05W), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), package format (0201), physical dimensions, and compliance certifications (AEC-Q200, RoHS3, MSL 1). Any deviation in these parameters disqualifies a part from substitution.

Q: Are there packaging differences between the substitute parts?

A: Yes. The RK73H1HTTC2001F is supplied in Cut Tape (CT) & Digi-Reel® format. The RK73H1HTTCM2001F packaging format is not specified in available data. The AC0201FR-072KL is supplied in Tape & Reel (TR) format. Packaging selection should align with assembly equipment capabilities and procurement workflows.

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

A: This designation indicates that KOA Speer Electronics has discontinued active development and marketing of the RK73H1HTTC2001F. The part remains available from existing inventory but will not receive design updates or extended production support. Transition to an active part number (RK73H1HTTCM2001F or AC0201FR-072KL) is recommended for long-term supply chain stability.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. Both RK73H1HTTCM2001F and AC0201FR-072KL carry AEC-Q200 automotive qualification, meeting the same reliability and qualification standards as the original RK73H1HTTC2001F. This certification is maintained across all substitute options.

Q: What is MSL 1 rating and why is it important?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake-out requirements. All three parts (main and substitutes) carry MSL 1 rating, eliminating moisture-related handling constraints and simplifying inventory management for storage and assembly operations.