Equivalent & Substitute Parts for RK73H1HTTC2371F

Part Overview

The RK73H1HTTC2371F is a 2.37 kOhm ±1% thick film chip resistor in 0201 package (0603 metric) rated for 0.05W (1/20W) power dissipation. Manufactured by KOA Speer Electronics, Inc., 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The main part carries a "Not For New Designs" product status, indicating it has been superseded. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and transition to active production alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73H1HTTC2371F

KOA Speer Electronics, Inc.In Stock: 77583RK73H1HTTC2371F Datasheet

Current PartRFQ

RK73H1HTTCM2371F

KOA Speer Electronics, Inc.In Stock: 913RK73H1HTTCM2371F Datasheet

MFR RecommendedRFQ

AC0201FR-072K37L

YAGEOIn Stock: 1024AC0201FR-072K37L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2371F are qualified based on strict electrical and mechanical parameter matching:

Substitution Criteria:

• Resistance value: 2.37 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 to 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)
• Moisture Sensitivity Level: MSL 1 (exact match required)

Substitute parts must maintain identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm) to ensure PCB layout compatibility and reflow process compatibility.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM2371F (KOA Speer Electronics, Inc. - Manufacturer Recommended Substitute)

This part is the manufacturer-recommended upgrade path from the obsolete RK73H1HTTC2371F. It maintains identical electrical and mechanical specifications while carrying Active product status, ensuring long-term availability and supply chain stability. Selection of this part is appropriate for new production runs and design revisions requiring KOA Speer sourcing continuity.

AC0201FR-072K37L (YAGEO - Direct Equivalent)

This YAGEO part provides a direct cross-reference alternative with identical parameter compliance across all critical specifications: resistance, tolerance, power rating, package dimensions, temperature performance, and automotive qualification. Active product status and established inventory levels support immediate procurement. This part is suitable for applications where multi-source qualification is required or where YAGEO supply chain relationships are preferred.

Both substitute parts satisfy all electrical performance requirements, thermal operating conditions, and automotive reliability standards specified for the original RK73H1HTTC2371F. Selection between these two substitutes depends on established supplier relationships, procurement agreements, and supply chain strategy rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2371F be used as a direct replacement for RK73H1HTTC2371F in existing designs?

A: Yes. RK73H1HTTCM2371F is the manufacturer-recommended substitute and maintains identical electrical specifications (2.37 kOhms ±1%, 0.05W), package dimensions (0201 / 0603 Metric), temperature performance (-55°C to 155°C), and AEC-Q200 automotive qualification. No design changes are required.

Q: What is the difference between RK73H1HTTC2371F and RK73H1HTTCM2371F?

A: Both parts are manufactured by KOA Speer Electronics with identical electrical and mechanical parameters. The primary difference is product status: RK73H1HTTC2371F is marked "Not For New Designs" (obsolete), while RK73H1HTTCM2371F carries Active status, indicating current production and long-term availability.

Q: Can AC0201FR-072K37L from YAGEO replace the KOA part in automotive applications?

A: Yes. AC0201FR-072K37L meets all specified parameters including AEC-Q200 automotive qualification, identical resistance and tolerance (2.37 kOhms ±1%), power rating (0.05W), package (0201), temperature range (-55°C to 155°C), and moisture resistance. It is suitable for automotive applications requiring multi-source qualification.

Q: Are there any package or footprint differences between these substitutes?

A: No. All three parts use identical 0201 package (0603 Metric) with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints and reflow profiles are interchangeable.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: Yes. RK73H1HTTCM2371F and AC0201FR-072K37L are both ROHS3 Compliant and REACH Unaffected, matching the compliance status of the original RK73H1HTTC2371F.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions.