Equivalent & Substitute Parts for RK73H1HTTC24R0F

Part Overview

The RK73H1HTTC24R0F is a 24 Ohm, ±1% tolerance, 0.05W (1/20W) thick film chip resistor in 0201 package (0.60mm x 0.30mm) manufactured by KOA Speer Electronics, Inc. This component is rated for automotive applications under AEC-Q200 standard with moisture resistance and operates across -55°C to 155°C. The part is currently classified as "Not For New Designs," indicating it has been superseded. Identifying equivalent and substitute parts is necessary for ongoing production support, legacy system maintenance, and design flexibility when sourcing constraints occur.

Substiute Parts

RK73H1HTTC24R0F

KOA Speer Electronics, Inc.In Stock: 40100RK73H1HTTC24R0F Datasheet

Current PartRFQ

RK73H1HTTCM24R0F

KOA Speer Electronics, Inc.In Stock: 743RK73H1HTTCM24R0F Datasheet

MFR RecommendedRFQ

AC0201FR-0724RL

YAGEOIn Stock: 820AC0201FR-0724RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC24R0F are qualified based on the following electrical and mechanical parameters:

Mandatory Matching Parameters:

• Resistance value: 24 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive rating: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

All identified substitutes meet these criteria across different manufacturers, ensuring functional and mechanical interchangeability in automotive and industrial applications.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM24R0F (KOA Speer Electronics, Inc. - MFR Recommended): This part is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. It maintains active product status and shares identical electrical specifications with the original RK73H1HTTC24R0F. Selection of this part is appropriate for new production runs and ongoing support of existing designs. The part is ROHS3 compliant and carries AEC-Q200 automotive qualification. Note that moisture resistance is not explicitly specified for this variant, which may be a consideration for high-humidity or moisture-critical applications.

AC0201FR-0724RL (YAGEO - Direct Manufacturer Alternative): This YAGEO part provides cross-manufacturer substitution with active product status. It matches all critical electrical and mechanical parameters, including explicit moisture resistance and AEC-Q200 automotive rating. The AC0201FR-0724RL is available in Tape & Reel packaging and maintains ROHS3 compliance and MSL 1 rating. This part is suitable for applications requiring multi-source qualification or when KOA supply is constrained.

Both substitute parts are qualified for direct replacement in automotive and industrial applications where the original RK73H1HTTC24R0F was specified.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM24R0F be used as a direct replacement for RK73H1HTTC24R0F? A: Yes. Both parts share identical resistance (24 Ohms), tolerance (±1%), power rating (0.05W), package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive rating. The primary difference is product status: the original is "Not For New Designs" while the substitute is "Active."

Q: What is the difference between RK73H1HTTC24R0F and AC0201FR-0724RL? A: Both parts are electrically and mechanically identical in all critical parameters. The differences are manufacturer (KOA vs. YAGEO) and explicit moisture resistance specification (both have it, but AC0201FR-0724RL explicitly states this feature). Both are AEC-Q200 rated, ROHS3 compliant, and available in Tape & Reel packaging.

Q: Are these parts suitable for automotive applications? A: Yes. All three parts carry AEC-Q200 automotive qualification and operate across -55°C to 155°C, meeting automotive temperature and reliability standards.

Q: What does "Not For New Designs" mean for RK73H1HTTC24R0F? A: This designation indicates the part has been superseded by newer alternatives. While existing inventory remains available, KOA recommends using RK73H1HTTCM24R0F for new production designs.

Q: Can I mix these parts in the same production batch? A: Yes. All three parts meet identical electrical and mechanical specifications for the 24 Ohm, ±1%, 0.05W, 0201 package category. They are functionally interchangeable and can be used interchangeably in the same circuit design.

Q: What is MSL 1 (Unlimited) and why does it matter? A: MSL 1 (Moisture Sensitivity Level 1) with unlimited shelf life means these parts have no moisture sensitivity restrictions. They can be stored indefinitely without special drying or baking procedures before soldering, simplifying supply chain and manufacturing logistics.

Q: Are all three parts ROHS3 compliant? A: Yes. RK73H1HTTC24R0F, RK73H1HTTCM24R0F, and AC0201FR-0724RL are all ROHS3 compliant, meeting European Union Restriction of Hazardous Substances regulations.