RK73G1HTTC9102F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC9102F is a 91 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated for 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) surface mount package. This component is qualified to the AEC-Q200 automotive standard and operates across the temperature range of -55°C to 155°C. The part is currently classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line.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 to ensure design continuity, maintain supply chain reliability, and transition to active product alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73G1HTTC9102F

KOA Speer Electronics, Inc.In Stock: 1053RK73G1HTTC9102F Datasheet

Current PartRFQ

RK73G1HTTCM9102F

KOA Speer Electronics, Inc.In Stock: 1041RK73G1HTTCM9102F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73G1HTTC9102F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 91 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±50ppm/°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)
• Number of terminations: 2 (exact match required)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)

Compliance & Certification:

• AEC-Q200 automotive qualification (exact match required)
• RoHS3 compliance (exact match required)
• Moisture Sensitivity Level 1 (exact match required)

Substitute parts must match all parameters listed above. No deviations in electrical performance, package dimensions, or automotive qualification are permitted.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM9102F is the direct equivalent substitute for the RK73G1HTTC9102F. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73G series, and share identical electrical specifications, mechanical dimensions, and automotive qualification.

The primary distinction between these parts is product status: the original RK73G1HTTC9102F is classified as "Not For New Designs," while the RK73G1HTTCM9102F maintains "Active" status. This transition indicates that the substitute part represents the current production alternative and is the recommended selection for ongoing designs and procurement.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1). Electrical performance, including resistance tolerance (±1%), power dissipation (0.05W), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C to 155°C), is identical across both components.

For applications currently using RK73G1HTTC9102F, direct substitution with RK73G1HTTCM9102F is electrically and mechanically compatible without circuit redesign or board layout modification.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM9102F be used as a direct replacement for RK73G1HTTC9102F?

A: Yes. Both components are electrically and mechanically identical. They share the same resistance value (91 kOhms), tolerance (±1%), power rating (0.05W), package type (0201), temperature coefficient (±50ppm/°C), operating temperature range (-55°C to 155°C), and AEC-Q200 automotive qualification. The substitute part is the active production alternative.

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

A: This designation indicates that the RK73G1HTTC9102F has been superseded by the manufacturer and is no longer recommended for new circuit designs. The RK73G1HTTCM9102F, with "Active" status, is the current production part and should be used for all new applications.

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

A: Yes. Both components are packaged in 0201 (0603 Metric) format with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). No board layout or footprint changes are required.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73G1HTTC9102F and RK73G1HTTCM9102F are qualified to AEC-Q200 automotive standards and are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity).

Q: Is there any difference in temperature performance between these parts?

A: No. Both components operate across the identical temperature range of -55°C to 155°C and share the same temperature coefficient of ±50ppm/°C.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes. The substitute part RK73G1HTTCM9102F is fully interchangeable with RK73G1HTTC9102F in existing designs without any electrical, mechanical, or thermal performance impact.