Equivalent & Substitute Parts for RK73H1HTTC7320F

Part Overview

The RK73H1HTTC7320F is a 732 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The RK73H1HTTC7320F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's active product line.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 to support existing designs, legacy system maintenance, and procurement continuity where this component remains specified.

Substiute Parts

RK73H1HTTC7320F

KOA Speer Electronics, Inc.In Stock: 28998RK73H1HTTC7320F Datasheet

Current PartRFQ

RK73H1HTTCM7320F

KOA Speer Electronics, Inc.In Stock: 1110RK73H1HTTCM7320F Datasheet

MFR RecommendedRFQ

AC0201FR-07732RL

YAGEOIn Stock: 659AC0201FR-07732RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC7320F are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Resistance value: 732 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 & Package Criteria:

• 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)
• Height - Seated (Max): 0.010" (0.26mm) (exact match required)

Compliance & Certification Criteria:

• Automotive qualification: AEC-Q200 (exact match required)
• Moisture resistance: Required
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: MSL 1 (Unlimited) (exact match required)

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

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM7320F (KOA Speer Electronics, Inc.)

This part is the manufacturer-recommended equivalent from KOA Speer Electronics, Inc. It maintains active product status and carries identical electrical specifications, package dimensions, and AEC-Q200 automotive qualification. The primary distinction is that moisture resistance is not explicitly specified in the available data for this variant. Selection of this part is appropriate when moisture resistance is not a critical design requirement or when procurement from the original manufacturer is prioritized.

AC0201FR-07732RL (YAGEO)

This part is a cross-manufacturer substitute from YAGEO and maintains all critical electrical parameters, package specifications, and automotive certifications. It explicitly includes moisture-resistant construction and carries active product status. This part is suitable for applications where cross-manufacturer sourcing is acceptable and moisture resistance is a specified requirement.

Both substitute parts satisfy the core electrical and mechanical compatibility criteria for direct replacement in the original application circuit. Selection between them depends on supply chain strategy, moisture resistance requirements, and manufacturer preference.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM7320F be used as a direct replacement for RK73H1HTTC7320F?

A: Yes. Both parts share identical resistance (732 Ohms), tolerance (±1%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), AEC-Q200 rating, and physical dimensions. The primary difference is product status: RK73H1HTTCM7320F is active, while RK73H1HTTC7320F is not for new designs. Moisture resistance is not specified for RK73H1HTTCM7320F in the available data.

Q: Can AC0201FR-07732RL be used as a direct replacement for RK73H1HTTC7320F?

A: Yes. AC0201FR-07732RL meets all electrical and mechanical substitution criteria: 732 Ohms ±1%, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, AEC-Q200 qualification, and identical physical dimensions. AC0201FR-07732RL explicitly includes moisture-resistant construction and carries active product status.

Q: What are the critical parameters that determine substitutability?

A: Substitutability is determined by exact matching of: resistance value (732 Ohms), tolerance (±1%), power rating (0.05W), package type (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), AEC-Q200 automotive qualification, RoHS3 compliance, and MSL 1 rating. Physical dimensions and termination count must also match exactly.

Q: Are there any differences in packaging between the main part and substitutes?

A: The main part RK73H1HTTC7320F is supplied in Tape & Reel (TR) packaging. RK73H1HTTCM7320F packaging is not specified in the available data. AC0201FR-07732RL is supplied in Tape & Reel (TR) packaging. All three parts use the identical 0201 (0603 Metric) package case with matching physical dimensions and height specifications.

Q: Is moisture resistance a critical factor in selecting a substitute?

A: Moisture resistance is specified for RK73H1HTTC7320F and AC0201FR-07732RL but is not explicitly stated for RK73H1HTTCM7320F. If moisture resistance is a design requirement, AC0201FR-07732RL is the appropriate selection. If moisture resistance is not specified in the original design, either substitute may be used based on availability and supply chain considerations.

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

A: This status indicates that RK73H1HTTC7320F has been superseded in the manufacturer's product line. While the part remains available in inventory (28,902 pcs), it is no longer recommended for new circuit designs. For legacy system support and maintenance, this part remains functional and equivalent to its active substitutes.