RK73G1HTTC5603D Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC5603D is a 560 kOhms ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in 0201 (0603 Metric) package format. This component is rated for automotive applications under AEC-Q200 standard with a power rating of 0.05W (1/20W) and operates across the temperature range of -55°C to 155°C.

The RK73G1HTTC5603D carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has transitioned this part to end-of-life status. Organizations requiring this resistor value and package specification for new production or replacement inventory must identify active equivalent alternatives to ensure long-term supply chain continuity and design compliance.

Substiute Parts

RK73G1HTTC5603D

KOA Speer Electronics, Inc.In Stock: 758RK73G1HTTC5603D Datasheet

Current PartRFQ

RK73G1HTTCM5603D

KOA Speer Electronics, Inc.In Stock: 788RK73G1HTTCM5603D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC5603D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 560 kOhms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

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

Compliance & Certification:

• Automotive AEC-Q200 rating (exact match required)
• RoHS3 compliance (exact match required)
• Moisture Sensitivity Level 1 (exact match required)

Substitute parts must match all parameters listed above. Parts meeting these criteria are functionally and mechanically interchangeable in applications designed for the RK73G1HTTC5603D.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM5603D serves as the active equivalent substitute for the RK73G1HTTC5603D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73G series and share identical electrical, mechanical, and compliance specifications.

The primary distinction between these parts is product lifecycle status: the RK73G1HTTC5603D is designated "Not For New Designs," while the RK73G1HTTCM5603D maintains "Active" status. This status difference reflects KOA Speer Electronics' current production and support commitment.

For applications currently utilizing the RK73G1HTTC5603D, the RK73G1HTTCM5603D provides direct functional replacement without circuit redesign or re-qualification requirements. Both parts satisfy AEC-Q200 automotive qualification, ROHS3 compliance, and identical performance parameters across all electrical and thermal operating conditions.

Selection of the RK73G1HTTCM5603D is appropriate for new designs, production restocking, and component replacement scenarios where the 560 kOhms ±0.5% 0.05W 0201 package specification is required.

Frequently Asked Questions (FAQ)

Q: Can the RK73G1HTTCM5603D be used as a direct replacement for the RK73G1HTTC5603D in existing assemblies?

A: Yes. Both components are electrically and mechanically identical. The RK73G1HTTCM5603D provides direct substitution without circuit modification or performance impact.

Q: What is the significance of the product status difference between these parts?

A: The RK73G1HTTC5603D is classified as "Not For New Designs," indicating KOA Speer Electronics has concluded active development and production support for this specific part number. The RK73G1HTTCM5603D maintains "Active" status, confirming ongoing manufacturing and supply availability.

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

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

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the RK73G1HTTC5603D and RK73G1HTTCM5603D are rated to AEC-Q200 automotive standard and are ROHS3 compliant with Moisture Sensitivity Level 1.

Q: What resistance tolerance is maintained in both parts?

A: Both components maintain ±0.5% tolerance on the 560 kOhms nominal value, ensuring equivalent precision and circuit performance.

Q: Are there inventory or lead time considerations when selecting between these parts?

A: The RK73G1HTTCM5603D, as an active part, typically offers better long-term availability and supply chain predictability compared to the end-of-life RK73G1HTTC5603D. Current inventory levels should be verified with the supplier for specific procurement timelines.