Equivalent & Substitute Parts for RK73H1HTTC3091D

Part Overview

The RK73H1HTTC3091D is a 3.09 kOhms ±0.5% thick film chip resistor in 0201 package (0603 metric) rated for 0.05W (1/20W) power dissipation. This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC3091D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for existing applications and legacy system support.

Substiute Parts

RK73H1HTTC3091D

KOA Speer Electronics, Inc.In Stock: 809RK73H1HTTC3091D Datasheet

Current PartRFQ

RK73H1HTTCM3091D

KOA Speer Electronics, Inc.In Stock: 920RK73H1HTTCM3091D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC3091D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 3.09 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:

• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level 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 RK73H1HTTCM3091D serves as the direct substitute for the RK73H1HTTC3091D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and maintain identical electrical, mechanical, and thermal specifications.

The primary distinction is product status: the original RK73H1HTTC3091D is designated "Not For New Designs," while the substitute RK73H1HTTCM3091D carries "Active" status. This indicates the substitute represents the current production equivalent and is the recommended selection for ongoing procurement.

Both parts maintain full AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity rating. Electrical performance, thermal characteristics, and package dimensions are identical, ensuring direct functional interchangeability in circuit applications.

For applications currently using RK73H1HTTC3091D, transition to RK73H1HTTCM3091D is supported without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3091D be used as a direct replacement for RK73H1HTTC3091D?

A: Yes. Both components are electrically and mechanically identical with matching resistance (3.09 kOhms ±0.5%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), and operating range (-55°C ~ 155°C). The substitute carries active product status and is the current production equivalent.

Q: What does "Not For New Designs" mean for the original part?

A: This designation indicates the RK73H1HTTC3091D has been superseded in the manufacturer's product line. While existing inventory may remain available, KOA Speer Electronics recommends using the active equivalent RK73H1HTTCM3091D for new designs and ongoing procurement.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both components share identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) with maximum seated height of 0.010" (0.26mm). PCB footprints and assembly processes are interchangeable.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both RK73H1HTTC3091D and RK73H1HTTCM3091D carry AEC-Q200 automotive qualification and are suitable for automotive applications requiring this certification.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling procedures apply without special moisture control requirements.

Q: Are there any compliance differences between the two parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8533.21.0030).