RK73B1HTTC240G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC240G is a 24 Ohm ±2% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format, manufactured by KOA Speer Electronics, Inc. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary for ongoing support of existing designs, maintenance applications, and inventory management where this resistor is specified.

Substiute Parts

RK73B1HTTC240G

KOA Speer Electronics, Inc.In Stock: 968RK73B1HTTC240G Datasheet

Current PartRFQ

RK73B1HTTCM240G

KOA Speer Electronics, Inc.In Stock: 1119RK73B1HTTCM240G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73B1HTTC240G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 24 Ohms (exact match required)
• Tolerance: ±2% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

• Package format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

Substitute parts must match all parameters listed above. No deviations in electrical specifications, package dimensions, or automotive certifications are permitted for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM240G is the manufacturer-recommended substitute for the RK73B1HTTC240G. Both parts are electrically and mechanically identical across all specified parameters. The primary distinction is product status: the original part is classified as "Not For New Designs," while the substitute maintains "Active" status within the manufacturer's current product portfolio.

For applications currently using RK73B1HTTC240G, the RK73B1HTTCM240G provides direct functional equivalence with the advantage of ongoing manufacturer support and availability. Both parts satisfy AEC-Q200 automotive qualification requirements and ROHS3 compliance mandates. The substitute part is suitable for both new production and replacement applications where the original specification is maintained.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM240G be used as a direct replacement for RK73B1HTTC240G?

A: Yes. The substitute part matches all electrical, mechanical, and compliance parameters of the original part. Direct substitution is permissible without circuit redesign or re-qualification.

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

A: This designation indicates the manufacturer has transitioned the part to end-of-life status and recommends using the active substitute part for new applications. Existing designs may continue using either part interchangeably.

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

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

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73B1HTTC240G and RK73B1HTTCM240G carry AEC-Q200 qualification, meeting automotive reliability and performance requirements.

Q: What is the moisture sensitivity level for these resistors?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under identical ECCN (EAR99) and HTSUS (8533.21.0030) codes.