RK73H1HTTC3602D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3602D is a 36 kOhms ±0.5% thick film chip resistor in 0201 package (0603 Metric) rated for 0.05W power dissipation. This component is manufactured by KOA Speer Electronics, Inc. and meets AEC-Q200 automotive qualification standards with moisture-resistant construction.

The RK73H1HTTC3602D carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part to end-of-life. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where this specific model number may no longer be readily available through standard distribution channels.

Substiute Parts

RK73H1HTTC3602D

KOA Speer Electronics, Inc.In Stock: 1045RK73H1HTTC3602D Datasheet

Current PartRFQ

RK73H1HTTCM3602D

KOA Speer Electronics, Inc.In Stock: 1004RK73H1HTTCM3602D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3602D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 36 kOhms (exact match required)
• Tolerance: ±0.5% (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 / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• AEC-Q200 automotive qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level MSL 1 (required for storage and handling compatibility)

Substitute parts must match all electrical and mechanical parameters without exception. Compliance certifications must be maintained or exceed the original specification.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM3602D is the direct equivalent substitute for the RK73H1HTTC3602D. Both components are manufactured by KOA Speer Electronics within the RK73H series and share identical electrical, mechanical, and compliance specifications.

The primary distinction is product lifecycle status: the original RK73H1HTTC3602D is designated "Not For New Designs," while the RK73H1HTTCM3602D maintains "Active" status. This indicates that KOA Speer Electronics continues to manufacture and support the RK73H1HTTCM3602D for ongoing production requirements.

For applications requiring AEC-Q200 automotive qualification, RoHS3 compliance, and moisture-resistant thick film construction in the 0201 package, the RK73H1HTTCM3602D provides full functional and regulatory equivalence. Both parts maintain identical performance characteristics across the -55°C to 155°C operating temperature range with ±200ppm/°C temperature coefficient stability.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM3602D be used as a direct replacement for the RK73H1HTTC3602D?

A: Yes. Both components are electrically and mechanically identical with matching 36 kOhms resistance, ±0.5% tolerance, 0.05W power rating, 0201 package, and AEC-Q200 automotive qualification. The substitute part maintains active production status.

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

A: This designation indicates that KOA Speer Electronics has transitioned the RK73H1HTTC3602D to end-of-life status and recommends using the RK73H1HTTCM3602D for new applications. Existing inventory of the original part may remain available but future availability is not guaranteed.

Q: Are there any differences in moisture handling or storage requirements between these parts?

A: No. Both components carry MSL 1 (Unlimited) moisture sensitivity level rating, indicating identical storage and handling requirements with no moisture bake-out procedures necessary.

Q: Does the substitute part meet the same automotive standards?

A: Yes. The RK73H1HTTCM3602D carries AEC-Q200 qualification identical to the original part, meeting automotive reliability and qualification requirements.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. The 0201 (0603 Metric) package dimensions, termination configuration, and electrical specifications are identical, enabling direct PCB footprint compatibility.

Q: What is the difference between the part numbers RK73H1HTTC3602D and RK73H1HTTCM3602D?

A: The designation difference reflects KOA Speer Electronics' product line evolution. The "M" variant (RK73H1HTTCM3602D) represents the current active production version, while the original designation has been transitioned to end-of-life status.