RK73G1HTTC9101F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC9101F is a 9.1 kOhms ±1% chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is classified as Automotive AEC-Q200 compliant thick film resistor designed for high-reliability applications requiring automotive-grade performance across extended temperature ranges.

The RK73G1HTTC9101F carries a product status of "Not For New Designs," indicating that while the part remains available in inventory, KOA Speer Electronics has designated it as obsolete or superseded for new design implementations. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to actively supported alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73G1HTTC9101F

KOA Speer Electronics, Inc.In Stock: 1131RK73G1HTTC9101F Datasheet

Current PartRFQ

RK73G1HTTCM9101F

KOA Speer Electronics, Inc.In Stock: 1017RK73G1HTTCM9101F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC9101F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 9.1 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 / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

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

Substitute parts must match all parameters listed above. The RK73G1HTTCM9101F from KOA Speer Electronics, Inc. meets all substitution criteria and is classified as the manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM9101F is the direct equivalent substitute for the RK73G1HTTC9101F. Both components are manufactured by KOA Speer Electronics, Inc., and share identical electrical, mechanical, and compliance specifications across all critical parameters.

Selection Basis:

The RK73G1HTTCM9101F is designated as the manufacturer-recommended substitute and carries an "Active" product status, indicating ongoing manufacturing support and availability. This part is suitable for new design implementations and provides supply chain continuity for existing designs currently using the RK73G1HTTC9101F.

Both parts maintain full compliance with AEC-Q200 automotive qualification standards, ROHS3 environmental directives, and REACH regulatory requirements. The identical package footprint (0201 / 0603 Metric), thermal characteristics (-55°C to 155°C operating range), and moisture sensitivity classification (MSL 1) ensure direct drop-in compatibility at the board assembly level.

For applications requiring the 9.1 kOhms ±1% 0.05W thick film resistor in automotive or high-reliability environments, the RK73G1HTTCM9101F provides equivalent performance with the advantage of active manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the RK73G1HTTCM9101F be used as a direct replacement for the RK73G1HTTC9101F in existing designs?

A: Yes. The RK73G1HTTCM9101F is electrically and mechanically identical to the RK73G1HTTC9101F. Both components share the same resistance value (9.1 kOhms), tolerance (±1%), power rating (0.05W), package (0201), and automotive AEC-Q200 certification. Direct substitution is supported at the board assembly level without design modification.

Q: What is the difference between the RK73G1HTTC9101F and RK73G1HTTCM9101F part numbers?

A: The primary difference is product status. The RK73G1HTTC9101F is designated "Not For New Designs," while the RK73G1HTTCM9101F carries "Active" status. Both parts are manufactured by KOA Speer Electronics, Inc., and meet identical specifications. The suffix variation in the part number reflects the manufacturer's product lifecycle designation.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the RK73G1HTTC9101F and RK73G1HTTCM9101F carry AEC-Q200 automotive qualification and are rated for operating temperatures from -55°C to 155°C. Both are compliant with ROHS3 and REACH regulatory requirements, making them suitable for automotive and high-reliability applications.

Q: What is the package compatibility between these two parts?

A: Both parts use the identical 0201 (0603 Metric) package with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints, pick-and-place programming, and reflow profiles are fully compatible.

Q: Is the RK73G1HTTCM9101F available in the same packaging format?

A: The RK73G1HTTC9101F is supplied in Tape & Reel (TR) packaging. The RK73G1HTTCM9101F packaging format is not specified in the provided data. Contact the supplier or manufacturer to confirm packaging availability if Tape & Reel format is required for automated assembly.

Q: What is the moisture sensitivity level for both parts?

A: Both parts carry Moisture Sensitivity Level (MSL) 1, classified as "Unlimited." This designation indicates the components have no moisture sensitivity restrictions and do not require special handling, storage, or baking procedures prior to assembly.

Q: Can these parts be used interchangeably in new designs?

A: The RK73G1HTTCM9101F is recommended for new designs due to its "Active" product status. The RK73G1HTTC9101F is designated "Not For New Designs" and should be used only for sustaining existing designs or inventory management purposes.