Equivalent & Substitute Parts for RK73H1HTTC24R9F

Part Overview

The RK73H1HTTC24R9F is a 24.9 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC24R9F is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support legacy system maintenance or production transitions.

Substiute Parts

RK73H1HTTC24R9F

KOA Speer Electronics, Inc.In Stock: 46287RK73H1HTTC24R9F Datasheet

Current PartRFQ

RK73H1HTTCM24R9F

KOA Speer Electronics, Inc.In Stock: 856RK73H1HTTCM24R9F Datasheet

MFR RecommendedRFQ

AC0201FR-0724R9L

YAGEOIn Stock: 20506AC0201FR-0724R9L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC24R9F are identified based on strict electrical and mechanical parameter matching within the 0201 chip resistor category. The substitution criteria are:

Primary Matching Parameters:

• Resistance value: 24.9 Ohms (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 ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Identified Substitute Parts:

1. RK73H1HTTCM24R9F (KOA Speer Electronics, Inc.) — Manufacturer-recommended direct equivalent with Active product status
2. AC0201FR-0724R9L (YAGEO) — Cross-manufacturer equivalent with Active product status

Both substitutes meet all electrical and mechanical parameters specified for the original part and maintain full automotive AEC-Q200 compliance.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM24R9F (KOA Speer Electronics, Inc.):

This part is the manufacturer-recommended equivalent and represents the direct successor within the KOA Speer product line. It maintains identical electrical and mechanical specifications while carrying Active product status. Selection of this part ensures continuity with the original manufacturer's design intent and quality standards. This option is appropriate for applications requiring single-source supplier relationships or where KOA Speer components are specified in design documentation.

AC0201FR-0724R9L (YAGEO):

This part provides a cross-manufacturer equivalent with full parameter alignment and Active product status. YAGEO's AC series thick film resistor meets all electrical and mechanical requirements, including AEC-Q200 automotive qualification and ROHS3 compliance. This option is suitable for applications where multi-source component strategies are employed or where YAGEO components are already qualified in the supply chain. The part includes moisture-resistant construction matching the original specification.

Both substitute parts are suitable for direct replacement in automotive applications requiring AEC-Q200 qualified 24.9 Ohm ±1% 0201 chip resistors. Selection between them should be based on existing supplier relationships, inventory availability, and design documentation requirements.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM24R9F be used as a direct replacement for RK73H1HTTC24R9F?

A: Yes. RK73H1HTTCM24R9F is the manufacturer-recommended equivalent from KOA Speer Electronics, Inc. It matches all electrical parameters (24.9 Ohms ±1%, 0.05W), mechanical specifications (0201 package), and automotive qualifications (AEC-Q200). The primary difference is product status: the original is "Not For New Designs" while the substitute is Active.

Q: Is AC0201FR-0724R9L compatible with designs specified for RK73H1HTTC24R9F?

A: Yes. AC0201FR-0724R9L from YAGEO meets all electrical and mechanical parameters required for substitution. Both parts are 24.9 Ohm ±1% thick film resistors in 0201 packages with AEC-Q200 automotive qualification, ±200ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. This part is suitable for cross-manufacturer substitution.

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

A: Substitution eligibility is determined by exact matching of: resistance value (24.9 Ohms), tolerance (±1%), power rating (0.05W), package type (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and automotive qualification (AEC-Q200). All identified substitutes meet these criteria.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both RK73H1HTTCM24R9F and AC0201FR-0724R9L are ROHS3 Compliant with MSL rating of 1 (Unlimited), matching the original part's compliance status.

Q: What is the difference between the original RK73H1HTTC24R9F and RK73H1HTTCM24R9F?

A: Both parts are electrically and mechanically identical 24.9 Ohm ±1% 0201 thick film resistors from KOA Speer Electronics, Inc. The primary distinction is product lifecycle status: RK73H1HTTC24R9F is classified as "Not For New Designs," while RK73H1HTTCM24R9F carries Active status, indicating it is the current production equivalent.

Q: Can these parts be used interchangeably in automotive applications?

A: Yes. All three parts (original and both substitutes) carry AEC-Q200 automotive qualification and are suitable for automotive circuit applications. They share identical electrical specifications, operating temperature ranges, and reliability ratings required for automotive use.

Q: What packaging formats are available for these substitutes?

A: RK73H1HTTC24R9F and AC0201FR-0724R9L are supplied in Tape & Reel (TR) format. RK73H1HTTCM24R9F packaging format is not specified in available documentation but maintains the same 0201 package type.