Equivalent & Substitute Parts for RK73H1HTTC2152F

Part Overview

The RK73H1HTTC2152F is a 21.5 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in 0201 package format with 0.05W power rating. This component is rated for automotive applications under AEC-Q200 standard and features moisture-resistant construction suitable for harsh operating environments.

The RK73H1HTTC2152F carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has transitioned this part to end-of-life status. Identification of equivalent and substitute parts is necessary to support existing designs, maintenance requirements, and production continuity for applications currently utilizing this component.

Substiute Parts

RK73H1HTTC2152F

KOA Speer Electronics, Inc.In Stock: 11137RK73H1HTTC2152F Datasheet

Current PartRFQ

RK73H1HTTCM2152F

KOA Speer Electronics, Inc.In Stock: 980RK73H1HTTCM2152F Datasheet

MFR RecommendedRFQ

AC0201FR-0721K5L

YAGEOIn Stock: 1008AC0201FR-0721K5L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2152F are qualified based on strict electrical and mechanical parameter matching:

Electrical Parameters (Must Match):

• Resistance value: 21.5 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• 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):

• Automotive AEC-Q200 rating
• RoHS3 compliance
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Substitute parts must maintain identical electrical performance, physical footprint compatibility, and automotive-grade certification to ensure direct functional replacement without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM2152F (KOA Speer Electronics, Inc. - MFR Recommended Substitute)

This part represents the manufacturer-recommended upgrade path from the RK73H1HTTC2152F. Both components are manufactured by KOA Speer Electronics and share identical electrical specifications, package dimensions, and AEC-Q200 automotive certification. The RK73H1HTTCM2152F carries Active product status, ensuring long-term availability and supply chain continuity. This substitute is the preferred selection for new production runs and design transitions requiring KOA Speer sourcing.

AC0201FR-0721K5L (YAGEO - Direct Substitute)

This YAGEO component provides cross-manufacturer equivalence with full parameter alignment to the RK73H1HTTC2152F. The AC0201FR-0721K5L maintains identical resistance, tolerance, power rating, package format, and AEC-Q200 automotive qualification. Both components feature moisture-resistant thick film construction and MSL 1 rating. Active product status and current inventory availability support immediate implementation. This substitute is suitable for applications where multi-source component qualification is required or where YAGEO supply chain preference exists.

Both substitute parts satisfy all electrical, mechanical, and compliance requirements for direct functional replacement without circuit modification or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2152F be used as a direct replacement for RK73H1HTTC2152F?

A: Yes. Both components share identical electrical parameters (21.5 kOhms ±1%, 0.05W), package format (0201), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive certification. Physical dimensions and termination count are identical. The primary difference is product status: RK73H1HTTCM2152F is Active, while RK73H1HTTC2152F is Not For New Designs.

Q: What is the difference between RK73H1HTTC2152F and AC0201FR-0721K5L?

A: Both parts are electrically and mechanically equivalent with matching resistance, tolerance, power rating, package dimensions, and AEC-Q200 rating. The primary differences are manufacturer (KOA Speer vs. YAGEO) and packaging designation. Both feature moisture-resistant thick film construction and MSL 1 rating. Selection depends on supply chain requirements and multi-source qualification needs.

Q: Are these substitutes suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and quality standards. Operating temperature range (-55°C ~ 155°C) and moisture-resistant construction support harsh automotive environments.

Q: Will these substitutes fit the existing PCB layout?

A: Yes. All substitute parts use identical 0201 package format with matching physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). No PCB redesign or footprint modification is required.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake-out requirements. These components can be stored and handled under standard conditions without special moisture control procedures, simplifying inventory management and supply chain logistics.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant, meeting European Union Restriction of Hazardous Substances regulations. This compliance is maintained across all substitute options.