RK73H1HTTC1020F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC1020F is a 102 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction. The part is currently classified as Not For New Designs, necessitating identification of equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain identical electrical specifications, package dimensions, and automotive compliance ratings to ensure functional interchangeability.

Substiute Parts

RK73H1HTTC1020F

KOA Speer Electronics, Inc.In Stock: 10807RK73H1HTTC1020F Datasheet

Current PartRFQ

RK73H1HTTCM1020F

KOA Speer Electronics, Inc.In Stock: 997RK73H1HTTCM1020F Datasheet

MFR RecommendedRFQ

AC0201FR-07102RL

YAGEOIn Stock: 1105AC0201FR-07102RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC1020F is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 102 Ohms (exact match)
• Tolerance: ±1% (exact match)
• Power rating: 0.05W / 1/20W (exact match)
• Temperature coefficient: ±200ppm/°C (exact match)
• Operating temperature range: -55°C ~ 155°C (exact match)

Mechanical & Package Equivalence Requirements:

• Package type: 0201 (0603 Metric) (exact match)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) (exact match)
• Height seated maximum: 0.010" (0.26mm) (exact match)
• Number of terminations: 2 (exact match)

Compliance & Environmental Equivalence Requirements:

• Automotive qualification: AEC-Q200 (exact match)
• Composition: Thick Film (exact match)
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant (exact match)
• Moisture Sensitivity Level: MSL 1 (Unlimited) (exact match)

Substitute parts identified below meet all specified criteria and are therefore functionally and mechanically interchangeable with the primary part number.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RK73H1HTTCM1020F

The RK73H1HTTCM1020F is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. This part maintains identical electrical and mechanical specifications to the primary part number and carries Active product status, making it suitable for new production applications. Both parts are manufactured by the same supplier, ensuring consistency in process control and quality standards. The RK73H1HTTCM1020F is the preferred choice for direct replacement in existing designs and for new applications requiring the same performance envelope.

Secondary Substitute: AC0201FR-07102RL

The AC0201FR-07102RL is manufactured by YAGEO and provides cross-manufacturer equivalence. This part meets all electrical specifications, package requirements, and automotive compliance standards. The AC0201FR-07102RL carries Active product status and includes moisture-resistant construction identical to the primary part. Selection of this substitute is appropriate when supply chain considerations or cost optimization require multi-source qualification.

Both substitute parts are fully compliant with ROHS3 requirements and maintain AEC-Q200 automotive qualification. Selection between the two substitutes should be based on supply availability, procurement lead times, and established supplier qualification procedures within the design organization.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM1020F be used as a direct replacement for RK73H1HTTC1020F?

A: Yes. The RK73H1HTTCM1020F is the manufacturer-recommended substitute and provides complete electrical and mechanical equivalence. All critical parameters including resistance value, tolerance, power rating, package dimensions, temperature coefficient, operating temperature range, and AEC-Q200 automotive qualification are identical. The primary difference is product status: RK73H1HTTCM1020F is Active, while the original part is Not For New Designs.

Q: What is the difference between RK73H1HTTC1020F and RK73H1HTTCM1020F?

A: Both parts are 102 Ohm ±1% thick film resistors in 0201 package from KOA Speer Electronics, Inc. The primary distinction is product lifecycle status. RK73H1HTTCM1020F is the current active production part, while RK73H1HTTC1020F is designated Not For New Designs. Electrical and mechanical specifications are identical.

Q: Is AC0201FR-07102RL compatible with RK73H1HTTC1020F in automotive applications?

A: Yes. The AC0201FR-07102RL meets all required specifications for automotive use, including AEC-Q200 qualification, identical resistance value and tolerance, matching power rating, and equivalent operating temperature range. The part is manufactured by YAGEO and provides cross-manufacturer substitution capability.

Q: Are all three parts suitable for high-reliability automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification and are rated for the operating temperature range of -55°C ~ 155°C. All maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, making them suitable for automotive-grade applications.

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

A: The 0201 package (0603 Metric) is a surface-mount chip resistor with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm). All three parts use this identical package, ensuring mechanical compatibility with existing PCB layouts and assembly processes. The package accommodates two terminations for standard two-terminal resistor function.

Q: Can these parts be used interchangeably in the same PCB assembly?

A: Yes. All three parts share identical package dimensions, termination count, and mechanical specifications. PCB footprints designed for any one of these parts will accommodate the others without modification. Assembly process parameters remain unchanged.

Q: What does "Moisture Resistant" mean in the context of these resistors?

A: Moisture-resistant construction provides enhanced protection against moisture ingress and environmental degradation. RK73H1HTTC1020F and AC0201FR-07102RL both include moisture-resistant thick film construction. This feature is particularly important in automotive applications subject to varying humidity and temperature conditions.

Q: Is RK73H1HTTCM1020F available in the same packaging format as the original part?

A: The RK73H1HTTCM1020F is available in standard packaging; however, specific packaging format (Tape & Reel vs. alternative formats) should be confirmed with the supplier. The original RK73H1HTTC1020F is supplied in Tape & Reel (TR) format. Packaging specifications should be verified during procurement to ensure compatibility with assembly equipment.