RK73H1HTTC20R0F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC20R0F is a 20 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC20R0F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line. Identifying equivalent and substitute parts is necessary for ongoing production support, legacy system maintenance, and design continuity where this specific part number is specified.

Substiute Parts

RK73H1HTTC20R0F

KOA Speer Electronics, Inc.In Stock: 30974RK73H1HTTC20R0F Datasheet

Current PartRFQ

RK73H1HTTCM20R0F

KOA Speer Electronics, Inc.In Stock: 1078RK73H1HTTCM20R0F Datasheet

MFR RecommendedRFQ

AC0201FR-0720RL

YAGEOIn Stock: 10593AC0201FR-0720RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC20R0F are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Resistance value: 20 Ohms (exact match required)
• Tolerance: ±1% (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 & Compliance Criteria:

• Package / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• Moisture resistance: Required
• RoHS3 compliance: Required
• MSL rating: 1 (Unlimited) (exact match required)

Substitute parts must satisfy all criteria listed above to ensure functional and mechanical interchangeability in the original application circuit.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM20R0F (KOA Speer Electronics, Inc. - MFR Recommended)

This part is the manufacturer-recommended successor to the RK73H1HTTC20R0F. It carries Active product status and maintains all critical electrical parameters. However, moisture resistance is not explicitly specified in the provided data for this variant. Selection of this part is appropriate for applications where the original moisture-resistant specification is not a mandatory requirement, or where KOA Speer's standard thick film construction provides sufficient moisture protection for the application environment.

AC0201FR-0720RL (YAGEO - Direct Substitute)

This part provides complete electrical and mechanical equivalence to the RK73H1HTTC20R0F, including explicit moisture-resistant construction and AEC-Q200 automotive qualification. The AC0201FR-0720RL carries Active product status and is available in higher inventory quantities. This part is suitable for direct substitution in applications requiring full compliance with the original specification, including moisture resistance.

Both substitute parts satisfy the core electrical and mechanical requirements. Selection between them depends on supply chain availability, inventory levels, and whether explicit moisture-resistant construction is required for the specific application environment.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM20R0F be used as a direct replacement for the RK73H1HTTC20R0F?

A: The RK73H1HTTCM20R0F matches all electrical parameters and maintains AEC-Q200 automotive qualification. However, moisture resistance is not explicitly specified for this variant in the provided data. If moisture resistance is a critical requirement for your application, verify with KOA Speer Electronics or consider the AC0201FR-0720RL as an alternative.

Q: What is the difference between the RK73H1HTTC20R0F and AC0201FR-0720RL?

A: Both parts are electrically and mechanically identical: 20 Ohm ±1% thick film resistors in 0201 package with AEC-Q200 rating, ±200ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. The primary difference is the manufacturer (KOA Speer vs. YAGEO). The AC0201FR-0720RL explicitly specifies moisture-resistant construction and carries Active product status.

Q: Are all substitute parts available in the same packaging format?

A: The RK73H1HTTC20R0F is supplied in Tape & Reel (TR) packaging. The RK73H1HTTCM20R0F packaging format is not specified in the provided data. The AC0201FR-0720RL is available in Tape & Reel (TR) packaging, matching the original part's packaging format.

Q: Do all substitute parts meet automotive qualification standards?

A: Yes. Both the RK73H1HTTCM20R0F and AC0201FR-0720RL carry AEC-Q200 automotive qualification, matching the original RK73H1HTTC20R0F specification.

Q: What does "Not For New Designs" status mean for the RK73H1HTTC20R0F?

A: This status indicates the part has been superseded in the manufacturer's active product line. While existing inventory remains available, KOA Speer recommends using the RK73H1HTTCM20R0F for new designs. For ongoing production of legacy systems, either substitute part is appropriate based on availability and specific application requirements.

Q: Are all parts RoHS3 compliant?

A: Yes. The RK73H1HTTC20R0F, RK73H1HTTCM20R0F, and AC0201FR-0720RL are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.