RK73H1HTTC2002D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC2002D is a 20 kOhms ±0.5% thick film chip resistor in 0201 package (0603 Metric) rated for 0.05W (1/20W) power dissipation. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and transition to active product alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

RK73H1HTTC2002D

KOA Speer Electronics, Inc.In Stock: 1877RK73H1HTTC2002D Datasheet

Current PartRFQ

RK73H1HTTCM2002D

KOA Speer Electronics, Inc.In Stock: 1066RK73H1HTTCM2002D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC2002D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 20 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 to 155°C (exact match required)

Mechanical Parameters:

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

Compliance & Certification:

• Automotive rating: AEC-Q200 (exact match required)
• RoHS status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Substitute parts must match all parameters listed above. The primary distinction between the main part and substitute alternatives is product status and specific feature sets (such as moisture resistance designation).

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM2002D is the primary substitute for RK73H1HTTC2002D based on the following engineering criteria:

Product Status Transition: The RK73H1HTTC2002D is designated "Not For New Designs," indicating manufacturer discontinuation or phase-out. The RK73H1HTTCM2002D carries "Active" product status, confirming ongoing manufacturing support and availability.

Electrical & Mechanical Equivalence: All critical electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range) are identical between the main part and substitute. Mechanical dimensions, package type (0201 / 0603 Metric), and termination configuration are fully compatible.

Compliance & Certification: Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 (Unlimited) moisture sensitivity rating. REACH status is identical for both components.

Feature Consideration: The main part specifies "Moisture Resistant" as an explicit feature, while the substitute lists only "Automotive AEC-Q200." This difference does not affect electrical or mechanical substitution; both parts are qualified for automotive use and meet moisture sensitivity requirements at MSL 1.

Supply Chain Continuity: The substitute part maintains 1043 units in stock (active inventory), ensuring availability for new procurement and design transitions.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2002D be used as a direct replacement for RK73H1HTTC2002D in existing designs?

A: Yes. All electrical parameters (20 kOhms ±0.5%, 0.05W, ±200ppm/°C, -55°C to 155°C), mechanical dimensions (0201 package), and automotive certifications (AEC-Q200) are identical. The parts are pin-compatible and functionally equivalent.

Q: What is the difference between "Moisture Resistant" and standard AEC-Q200 qualification?

A: Both parts meet MSL 1 (Unlimited) moisture sensitivity requirements. The explicit "Moisture Resistant" designation on the main part is a feature descriptor; the substitute part's AEC-Q200 qualification includes equivalent moisture performance standards.

Q: Why is the main part marked "Not For New Designs"?

A: This designation indicates the manufacturer has transitioned the product line. The RK73H1HTTCM2002D (Active status) is the current production equivalent and should be used for new designs and procurement.

Q: Are there any differences in packaging or delivery format?

A: The main part specifies "Tape & Reel (TR)" packaging. The substitute part does not specify packaging format in the provided data. Confirm packaging requirements with the supplier if tape and reel format is mandatory for your assembly process.

Q: Is the RK73H1HTTCM2002D suitable for automotive applications?

A: Yes. The substitute part carries AEC-Q200 qualification, confirming suitability for automotive applications with equivalent reliability and performance standards as the main part.

Q: Can these parts be used interchangeably in high-reliability applications?

A: Yes, provided all electrical and mechanical parameters match the circuit design requirements. Both parts meet AEC-Q200 automotive standards and carry identical operating temperature ranges and tolerance specifications.