RK73H1HTTC2873D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC2873D is a 287 kOhms ±0.5% 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The RK73H1HTTC2873D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line. Identifying equivalent substitute parts ensures design continuity for existing applications and facilitates component procurement when the original part becomes unavailable.

Substiute Parts

RK73H1HTTC2873D

KOA Speer Electronics, Inc.In Stock: 719RK73H1HTTC2873D Datasheet

Current PartRFQ

RK73H1HTTCM2873D

KOA Speer Electronics, Inc.In Stock: 830RK73H1HTTCM2873D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC2873D is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Resistance value: 287 kOhms (exact match required)
• Tolerance: ±0.5% (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)

The substitute part RK73H1HTTCM2873D meets all critical parameters and is manufactured by the same supplier (KOA Speer Electronics, Inc.) within the same RK73H series. The primary distinction is product status: the substitute part is classified as "Active," whereas the original part is "Not For New Designs."

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM2873D is the direct equivalent substitute for the RK73H1HTTC2873D. Both components are manufactured by KOA Speer Electronics, Inc., and maintain identical electrical specifications, mechanical dimensions, and automotive compliance certifications.

The original part (RK73H1HTTC2873D) is designated "Not For New Designs," indicating it has been superseded in the manufacturer's active portfolio. The substitute part (RK73H1HTTCM2873D) carries "Active" product status, confirming ongoing manufacturing support and availability.

Both parts satisfy AEC-Q200 automotive qualification requirements and ROHS3 compliance. The substitute part is suitable for direct replacement in existing designs and is the recommended selection for new applications requiring this resistance value and package configuration.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2873D be used as a direct replacement for RK73H1HTTC2873D?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 287 kOhms ±0.5%, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, and AEC-Q200 automotive qualification. The substitute part is manufactured by the same supplier and is the active equivalent.

Q: What is the difference between these two part numbers?

A: The primary difference is product lifecycle status. RK73H1HTTC2873D is classified as "Not For New Designs," while RK73H1HTTCM2873D is "Active." The "M" designation in the substitute part number indicates the current active variant. All electrical and mechanical specifications remain identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both parts meet AEC-Q200 automotive qualification standards and are rated for the full automotive temperature range of -55°C ~ 155°C. Both are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited).

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts share identical package dimensions (0201 / 0603 Metric), footprint requirements, and termination specifications. No PCB layout modifications are required when substituting between these parts.

Q: What is the current availability status?

A: RK73H1HTTCM2873D (substitute) is the active product with ongoing manufacturing support. RK73H1HTTC2873D (original) is not recommended for new designs and may have limited availability. For new applications, specify RK73H1HTTCM2873D.