Equivalent & Substitute Parts for RK73H1HTTC2873F

Part Overview

The RK73H1HTTC2873F is a 287 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 package (0.60mm x 0.30mm metric). This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently classified as "Not For New Designs," making identification of active equivalent and substitute components essential for ongoing production support and design continuity.

Substiute Parts

RK73H1HTTC2873F

KOA Speer Electronics, Inc.In Stock: 10843RK73H1HTTC2873F Datasheet

Current PartRFQ

RK73H1HTTCM2873F

KOA Speer Electronics, Inc.In Stock: 957RK73H1HTTCM2873F Datasheet

MFR RecommendedRFQ

AC0201FR-07287KL

YAGEOIn Stock: 1006AC0201FR-07287KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC2873F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 287 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
• Moisture sensitivity level: MSL 1

All identified substitute parts meet these parameters without exception. Substitutes are grouped by manufacturer and product status to facilitate component selection based on availability and design phase requirements.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs:

The RK73H1HTTCM2873F (KOA Speer Electronics) is the primary recommended substitute. This part maintains identical electrical and mechanical specifications to the original RK73H1HTTC2873F while carrying an "Active" product status. Both components are from the same manufacturer within the RK73H series, ensuring design continuity and supply chain consistency. This option is optimal for applications requiring single-source component qualification.

For Multi-Source Supply Strategy:

The AC0201FR-07287KL (YAGEO) provides a cross-manufacturer alternative with equivalent electrical performance and automotive AEC-Q200 certification. This component is also in "Active" status and offers supply diversification. The AC series from YAGEO meets all mandatory electrical and mechanical parameters, including moisture resistance and RoHS3 compliance. Selection of this part requires component-level qualification review if the original design was qualified exclusively to KOA specifications.

Compliance and Certification:

All three parts maintain ROHS3 compliance, MSL 1 rating, and AEC-Q200 automotive qualification. No additional environmental or regulatory screening is required for substitution within automotive applications operating within the specified temperature range of -55°C to 155°C.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2873F be used as a direct replacement for RK73H1HTTC2873F?

A: Yes. Both parts are manufactured by KOA Speer Electronics and share identical electrical specifications (287 kOhms ±1%, 0.05W), package dimensions (0201), temperature coefficient (±200ppm/°C), operating range (-55°C to 155°C), and automotive certifications (AEC-Q200). The primary difference is product status: RK73H1HTTCM2873F is Active, while RK73H1HTTC2873F is Not For New Designs.

Q: What is the difference between RK73H1HTTC2873F and AC0201FR-07287KL?

A: Both parts are electrically and mechanically equivalent with identical resistance (287 kOhms ±1%), power rating (0.05W), package (0201), and automotive qualification (AEC-Q200). The primary differences are manufacturer (KOA vs. YAGEO) and product status (Not For New Designs vs. Active). AC0201FR-07287KL provides supply diversification through a different manufacturer.

Q: Are all substitute parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification and are rated for the full automotive temperature range of -55°C to 155°C. All are ROHS3 compliant and carry MSL 1 moisture sensitivity rating.

Q: Does package type affect substitution compatibility?

A: No. All substitute parts use the 0201 package (0603 metric equivalent), with identical physical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). Tape & Reel packaging is standard for all parts and does not affect electrical or mechanical compatibility.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, within the scope of the specified electrical and mechanical parameters. All parts meet the mandatory criteria: 287 kOhms ±1%, 0.05W, 0201 package, thick film composition, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 rating, and ROHS3 compliance. No circuit redesign is required.

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

A: This designation indicates that RK73H1HTTC2873F is in end-of-life phase and should not be selected for new product development. However, it remains available for existing production support. For new designs, RK73H1HTTCM2873F or AC0201FR-07287KL are recommended as both carry "Active" status.