RK73H1HTTC1370F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC1370F is a 137 Ohms ±1% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC1370F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line. Identification of equivalent and substitute parts is necessary for ongoing support of legacy designs, maintenance applications, and inventory management where this specific part number is specified.

Substiute Parts

RK73H1HTTC1370F

KOA Speer Electronics, Inc.In Stock: 1169RK73H1HTTC1370F Datasheet

Current PartRFQ

RK73H1HTTCM1370F

KOA Speer Electronics, Inc.In Stock: 1172RK73H1HTTCM1370F Datasheet

MFR RecommendedRFQ

AC0201FR-07137RL

YAGEOIn Stock: 1006AC0201FR-07137RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC1370F are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 137 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

Substitutes are grouped into two categories: manufacturer-recommended alternatives from KOA Speer Electronics, Inc., and direct cross-reference parts from alternative manufacturers that meet identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM1370F (KOA Speer Electronics, Inc. - Manufacturer Recommended)

This part is the manufacturer-recommended successor to the RK73H1HTTC1370F. Both components are produced by KOA Speer Electronics, Inc. and share identical electrical specifications. The RK73H1HTTCM1370F carries Active product status, indicating ongoing manufacturing support and availability. This part is the preferred selection for new procurement and design updates where the original part number is no longer available. Current inventory: 1125 pieces.

AC0201FR-07137RL (YAGEO - Direct Cross-Reference)

This YAGEO component provides direct electrical and mechanical equivalence to the RK73H1HTTC1370F. All critical parameters match exactly: 137 Ohms ±1%, 0.05W power rating, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating. The AC0201FR-07137RL maintains Active product status with established supply chain availability. Current inventory: 972 pieces. This part is suitable for applications where multi-source component qualification is required or where YAGEO supply chain preference exists.

Both substitute parts maintain full compatibility with the original design specifications and automotive qualification requirements.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM1370F be used as a direct replacement for RK73H1HTTC1370F?

A: Yes. Both parts are manufactured by KOA Speer Electronics, Inc. and share identical electrical and mechanical specifications: 137 Ohms ±1%, 0.05W power rating, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, and AEC-Q200 automotive qualification. The RK73H1HTTCM1370F is the active product successor.

Q: Is AC0201FR-07137RL compatible with designs specified for RK73H1HTTC1370F?

A: Yes. The AC0201FR-07137RL meets all electrical and mechanical requirements: 137 Ohms ±1%, 0.05W power rating, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating. The component is manufactured by YAGEO and carries Active product status.

Q: What is the difference between RK73H1HTTC1370F and RK73H1HTTCM1370F?

A: The primary difference is product status. RK73H1HTTC1370F is marked "Not For New Designs," while RK73H1HTTCM1370F is Active. Both are KOA Speer Electronics products with identical electrical specifications. The RK73H1HTTCM1370F represents the current production equivalent.

Q: Are all substitute parts qualified for automotive applications?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification, matching the original RK73H1HTTC1370F specification.

Q: What is the significance of the 0201 package designation?

A: The 0201 package (0603 metric equivalent) is a surface-mount chip resistor format measuring 0.024" L x 0.012" W (0.60mm x 0.30mm). All substitute parts use this identical package format, ensuring mechanical compatibility with PCB layouts designed for the original component.

Q: Do all substitute parts have the same moisture sensitivity rating?

A: Yes. All substitute parts carry MSL 1 (Unlimited) moisture sensitivity level, matching the original part's specification.

Q: Can these parts be used interchangeably in production?

A: Yes, provided design documentation and procurement specifications are updated to reflect the selected substitute part number. All listed substitutes meet identical electrical and mechanical requirements and automotive qualification standards.