Equivalent & Substitute Parts for RK73H1HTTC2872F

Part Overview

The RK73H1HTTC2872F is a 28.7 kOhms ±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 RK73H1HTTC2872F carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary to support ongoing production requirements, field repairs, and design transitions to active product lines while maintaining electrical and mechanical compatibility.

Substiute Parts

RK73H1HTTC2872F

KOA Speer Electronics, Inc.In Stock: 10633RK73H1HTTC2872F Datasheet

Current PartRFQ

RK73H1HTTCM2872F

KOA Speer Electronics, Inc.In Stock: 860RK73H1HTTCM2872F Datasheet

MFR RecommendedRFQ

AC0201FR-0728K7L

YAGEOIn Stock: 10242AC0201FR-0728K7L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC2872F are qualified based on the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Resistance value: 28.7 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 Compatibility Criteria:

• Package / Case: 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 AEC-Q200 qualification (required for automotive applications)
• Moisture-resistant construction (required for reliability)
• RoHS3 compliance (required for regulatory conformance)
• MSL 1 rating (required for handling and storage)

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

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM2872F (KOA Speer Electronics, Inc.) - Recommended Primary Substitute

The RK73H1HTTCM2872F is the manufacturer-recommended substitute for the RK73H1HTTC2872F. Both parts are from the same manufacturer (KOA Speer Electronics, Inc.) and belong to the RK73H series. The RK73H1HTTCM2872F carries an "Active" product status, ensuring continued availability and manufacturing support. All electrical parameters, mechanical specifications, and compliance certifications are identical to the main part. This substitute is the preferred choice for direct replacement in existing designs and production environments.

AC0201FR-0728K7L (YAGEO) - Alternative Cross-Manufacturer Substitute

The AC0201FR-0728K7L is an alternative substitute from YAGEO, a different manufacturer. This part meets all electrical and mechanical requirements specified for the RK73H1HTTC2872F, including AEC-Q200 automotive qualification, moisture-resistant thick film construction, and RoHS3 compliance. The AC0201FR-0728K7L carries an "Active" product status. Selection of this cross-manufacturer substitute should be based on supply chain considerations, inventory availability, and design validation requirements specific to the application.

Both substitute parts satisfy all mandatory compatibility criteria and maintain full functional and physical interchangeability with the original part.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM2872F be used as a direct replacement for the RK73H1HTTC2872F?

A: Yes. The RK73H1HTTCM2872F is the manufacturer-recommended substitute and provides identical electrical performance and mechanical fit. All key parameters—resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range—are identical. Both parts carry AEC-Q200 qualification and ROHS3 compliance.

Q: What is the difference between RK73H1HTTC2872F and RK73H1HTTCM2872F?

A: The primary difference is product status. The RK73H1HTTC2872F is marked "Not For New Designs," while the RK73H1HTTCM2872F is "Active." Both are manufactured by KOA Speer Electronics, Inc., and belong to the RK73H series. The "M" designation in the part number indicates the active variant. Electrical and mechanical specifications are identical.

Q: Can YAGEO AC0201FR-0728K7L replace the KOA Speer RK73H1HTTC2872F?

A: Yes, the AC0201FR-0728K7L meets all electrical and mechanical compatibility requirements. Both parts are 28.7 kOhms ±1%, 0.05W, 0201 package, thick film composition, with ±200ppm/°C temperature coefficient and -55°C ~ 155°C operating range. Both carry AEC-Q200 qualification and ROHS3 compliance. Cross-manufacturer substitution should be validated according to design and procurement procedures.

Q: Are all substitute parts automotive-qualified?

A: Yes. Both the RK73H1HTTCM2872F and AC0201FR-0728K7L carry AEC-Q200 qualification, matching the automotive rating of the main part RK73H1HTTC2872F. All three parts are suitable for automotive applications.

Q: What does "Not For New Designs" mean for the RK73H1HTTC2872F?

A: "Not For New Designs" indicates that the manufacturer (KOA Speer Electronics, Inc.) is not recommending this part for new circuit designs. However, the part remains available for existing production and field support. For new designs, the active substitute RK73H1HTTCM2872F from the same manufacturer is the recommended choice.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts—RK73H1HTTC2872F, RK73H1HTTCM2872F, and AC0201FR-0728K7L—share identical physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) with a maximum seated height of 0.010" (0.26mm). They are all 0201 (0603 Metric) package components and are mechanically interchangeable.

Q: What is the MSL rating, and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 means "Unlimited." All three parts carry MSL 1 rating, indicating they have no moisture sensitivity restrictions. These components can be stored and handled without special moisture control measures, simplifying supply chain and manufacturing logistics.

Q: Can these parts be used interchangeably in tape and reel packaging?

A: The RK73H1HTTC2872F and AC0201FR-0728K7L are specified as Tape & Reel (TR) packaging. The RK73H1HTTCM2872F packaging is not specified in the provided data. Verify packaging format with the supplier before procurement to ensure compatibility with automated assembly equipment.