Equivalent & Substitute Parts for RK73H1HTTC6813F

Part Overview

The RK73H1HTTC6813F is a 681 kOhm ±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 RK73H1HTTC6813F carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary to support existing designs, ensure supply chain continuity, and facilitate component sourcing for production and maintenance applications.

Substiute Parts

RK73H1HTTC6813F

KOA Speer Electronics, Inc.In Stock: 9694RK73H1HTTC6813F Datasheet

Current PartRFQ

RK73H1HTTCM6813F

KOA Speer Electronics, Inc.In Stock: 756RK73H1HTTCM6813F Datasheet

MFR RecommendedRFQ

AC0201FR-07681KL

YAGEOIn Stock: 1098AC0201FR-07681KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC6813F are qualified based on strict electrical and mechanical parameter matching:

Substitution Criteria:

• Resistance value: 681 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

Substitute parts must satisfy all listed parameters to ensure functional and mechanical compatibility in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM6813F (KOA Speer Electronics, Inc.)

This part is a direct manufacturer upgrade from the main part number. It maintains identical electrical and mechanical specifications while carrying an "Active" product status. The RK73H1HTTCM6813F is the recommended path for continued support within the KOA Speer product line. Note that moisture resistance is not explicitly specified for this variant, which may be a consideration for applications requiring confirmed moisture protection.

AC0201FR-07681KL (YAGEO)

This part provides cross-manufacturer substitution with full parameter equivalence. The AC0201FR-07681KL maintains all critical specifications including moisture resistance, AEC-Q200 automotive qualification, and ROHS3 compliance. As an active product from YAGEO, it offers long-term supply availability. Selection of this part is appropriate when KOA Speer supply is constrained or when multi-source qualification is required.

Both substitute parts satisfy all mandatory electrical and mechanical parameters required for direct substitution in applications currently using the RK73H1HTTC6813F.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM6813F be used as a direct replacement for RK73H1HTTC6813F?

A: Yes. Both parts share identical resistance (681 kOhms), tolerance (±1%), power rating (0.05W), package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), AEC-Q200 rating, RoHS3 compliance, and MSL 1 rating. The primary difference is product status: RK73H1HTTCM6813F is active while RK73H1HTTC6813F is not for new designs.

Q: What is the difference between RK73H1HTTC6813F and AC0201FR-07681KL?

A: Both parts are electrically and mechanically equivalent across all specified parameters. The primary differences are manufacturer (KOA Speer vs. YAGEO) and product status (both are now active or supported). AC0201FR-07681KL explicitly specifies moisture resistance, while RK73H1HTTCM6813F does not include this specification in the provided data.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification and operate across the -55°C ~ 155°C temperature range required for automotive environments.

Q: Can I mix these parts in the same production batch?

A: Yes, provided your design and procurement specifications allow cross-manufacturer sourcing. All three parts meet identical electrical and mechanical requirements and carry equivalent compliance certifications (ROHS3, MSL 1).

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

A: The 0201 package (0603 Metric) is a surface-mount chip resistor measuring 0.024" L x 0.012" W (0.60mm x 0.30mm) with a maximum seated height of 0.010" (0.26mm). All substitute parts use this identical package, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Q: Does moisture resistance matter for my application?

A: Moisture resistance is specified for RK73H1HTTC6813F and AC0201FR-07681KL but not explicitly stated for RK73H1HTTCM6813F. If moisture protection is a design requirement, confirm specifications with the manufacturer or select AC0201FR-07681KL or the original RK73H1HTTC6813F.