Equivalent & Substitute Parts for RK73H1HTTC8662F

Part Overview

The RK73H1HTTC8662F is an 86.6 kOhm ±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The RK73H1HTTC8662F carries a product status of "Not For New Designs," indicating it has been superseded. Identifying equivalent and substitute parts is necessary to support existing designs, maintain supply chain continuity, and ensure compliance with automotive and reliability standards in production environments.

Substiute Parts

RK73H1HTTC8662F

KOA Speer Electronics, Inc.In Stock: 4109RK73H1HTTC8662F Datasheet

Current PartRFQ

RK73H1HTTCM8662F

KOA Speer Electronics, Inc.In Stock: 1155RK73H1HTTCM8662F Datasheet

MFR RecommendedRFQ

AC0201FR-0786K6L

YAGEOIn Stock: 792AC0201FR-0786K6L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC8662F are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Resistance value: 86.6 kOhms (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:

• AEC-Q200 automotive qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level 1 (required for reliability)

Substitutes are grouped into two categories: manufacturer-recommended alternatives and direct cross-reference parts. All listed substitutes meet or exceed the electrical, mechanical, and compliance requirements of the original part.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: RK73H1HTTCM8662F (KOA Speer Electronics, Inc.)

The RK73H1HTTCM8662F is the manufacturer-recommended substitute. This part maintains identical electrical specifications (86.6 kOhms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C) and mechanical compatibility (0201 package, thick film composition). The part carries Active product status, ensuring long-term availability and supply chain support. It meets AEC-Q200 automotive qualification and ROHS3 compliance requirements. The primary distinction is that moisture resistance is not explicitly specified for this variant, though MSL rating remains at Level 1 (Unlimited).

Secondary Recommendation: AC0201FR-0786K6L (YAGEO)

The AC0201FR-0786K6L provides a direct cross-reference alternative from YAGEO. This part matches all electrical parameters (86.6 kOhms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C) and mechanical specifications (0201 package, thick film composition). It maintains AEC-Q200 automotive qualification, ROHS3 compliance, and moisture-resistant construction identical to the original part. The AC0201FR-0786K6L carries Active product status and is available in Tape & Reel packaging, supporting high-volume production environments.

Selection Criteria:

• For designs requiring moisture-resistant construction matching the original specification, select AC0201FR-0786K6L.
• For designs accepting the KOA manufacturer family continuation, select RK73H1HTTCM8662F.
• Both substitutes support automotive applications with AEC-Q200 qualification and meet all regulatory compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM8662F be used as a direct replacement for RK73H1HTTC8662F?

A: Yes. The RK73H1HTTCM8662F is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. It provides identical electrical specifications (86.6 kOhms ±1%, 0.05W, ±200ppm/°C) and mechanical compatibility (0201 package). The primary difference is product status: RK73H1HTTCM8662F is Active, while the original is Not For New Designs. Both meet AEC-Q200 and ROHS3 requirements.

Q: What is the difference between RK73H1HTTC8662F and AC0201FR-0786K6L?

A: Both parts are electrically and mechanically equivalent (86.6 kOhms ±1%, 0.05W, 0201 package, thick film). The primary differences are manufacturer (KOA vs. YAGEO) and series designation (RK73H vs. AC). AC0201FR-0786K6L explicitly specifies moisture-resistant construction, matching the original part's feature set. Both carry AEC-Q200 qualification and ROHS3 compliance.

Q: Are these substitutes suitable for automotive applications?

A: Yes. All listed substitutes carry AEC-Q200 automotive qualification, meeting automotive industry reliability and performance standards. They are suitable for automotive circuit applications requiring 86.6 kOhm resistors in 0201 packages.

Q: What does "Not For New Designs" mean for the original part?

A: "Not For New Designs" indicates the RK73H1HTTC8662F has been superseded by newer alternatives. While existing inventory remains available, new circuit designs should specify the Active alternatives: RK73H1HTTCM8662F or AC0201FR-0786K6L.

Q: Can I mix RK73H1HTTCM8662F and AC0201FR-0786K6L in the same production run?

A: Yes. Both parts meet identical electrical specifications (86.6 kOhms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C) and mechanical requirements (0201 package, thick film composition). They are functionally interchangeable. However, design documentation should specify which part is used to maintain traceability and supply chain records.

Q: What is the significance of MSL Level 1 (Unlimited)?

A: MSL Level 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This simplifies logistics and reduces storage costs compared to higher MSL ratings.

Q: Are these parts RoHS compliant?

A: Yes. All listed substitutes are ROHS3 compliant, meeting European Union Restriction of Hazardous Substances regulations. They are suitable for applications requiring RoHS compliance.