RK73H1HTTC6803F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC6803F is a 680 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) surface mount package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC6803F carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part to end-of-life. Identifying equivalent and substitute parts is necessary for ongoing production support, field repairs, and design continuity where this resistor is currently deployed.

Substiute Parts

RK73H1HTTC6803F

KOA Speer Electronics, Inc.In Stock: 39760RK73H1HTTC6803F Datasheet

Current PartRFQ

RK73H1HTTCM6803F

KOA Speer Electronics, Inc.In Stock: 813RK73H1HTTCM6803F Datasheet

MFR RecommendedRFQ

AC0201FR-07680KL

YAGEOIn Stock: 807AC0201FR-07680KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC6803F are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 680 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

All substitute parts listed below match these parameters exactly. Substitution is valid when all electrical specifications, package dimensions, and compliance certifications are identical to the main part.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM6803F (KOA Speer Electronics, Inc.)

This part is the manufacturer-recommended substitute from KOA Speer Electronics. It maintains identical electrical specifications and package configuration to the RK73H1HTTC6803F. The primary distinction is active product status, indicating ongoing manufacturing and supply availability. This part is suitable for direct replacement in applications currently using the RK73H1HTTC6803F. Note that moisture resistance is not explicitly specified for this variant, though it shares the same series designation and core specifications.

AC0201FR-07680KL (YAGEO)

This part is a cross-manufacturer equivalent from YAGEO. It matches all critical electrical parameters, package dimensions, and compliance certifications of the RK73H1HTTC6803F, including explicit moisture resistance and AEC-Q200 automotive qualification. The AC0201FR-07680KL carries active product status and represents a viable alternative source for 680 kOhms ±1% 0.05W 0201 resistors in automotive applications. Selection between KOA and YAGEO variants depends on supply chain requirements, procurement agreements, and existing qualification documentation.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM6803F be used as a direct replacement for RK73H1HTTC6803F?

A: Yes. Both parts share identical resistance (680 kOhms), tolerance (±1%), power rating (0.05W), package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The primary difference is product status: RK73H1HTTCM6803F is active, while RK73H1HTTC6803F is not for new designs. Electrical and mechanical compatibility is complete.

Q: Is AC0201FR-07680KL compatible with RK73H1HTTC6803F in automotive applications?

A: Yes. AC0201FR-07680KL meets all electrical specifications, package requirements, and automotive compliance standards. Both parts are AEC-Q200 rated, ROHS3 compliant, MSL 1, and operate across -55°C ~ 155°C. AC0201FR-07680KL is manufactured by YAGEO and carries active product status, making it a qualified cross-manufacturer substitute.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is valid when the following parameters match exactly: resistance value (680 kOhms), 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 rating, RoHS compliance (ROHS3), and MSL rating (1). All listed substitutes meet these criteria.

Q: Does the 0201 package dimension differ between manufacturers?

A: No. The 0201 (0603 Metric) package is a standardized surface mount package. All listed parts share identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) with maximum seated height of 0.010" (0.26mm). Package compatibility is assured across all substitutes.

Q: Are there supply or inventory differences between the substitute parts?

A: Yes. Inventory levels vary by supplier and part number. RK73H1HTTC6803F has 39,713 pcs in stock (legacy status), RK73H1HTTCM6803F has 726 pcs, and AC0201FR-07680KL has 733 pcs. Availability should be confirmed with your component supplier for production requirements.

Q: What is the significance of "Not For New Designs" status on RK73H1HTTC6803F?

A: This designation indicates that KOA Speer Electronics has discontinued active development and marketing of this part number. While existing inventory may be available, the manufacturer recommends using active alternatives for new designs. RK73H1HTTCM6803F and AC0201FR-07680KL are both active products suitable for new applications.