RK73H1HTTC2802D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC2802D is a 28 kOhms ±0.5% thick film chip resistor in 0201 package (0603 Metric) rated for 0.05W (1/20W) power dissipation. This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards with moisture-resistant construction.

The RK73H1HTTC2802D carries a product status designation of "Not For New Designs," indicating that while the part remains available in inventory (843 Pcs), it has been superseded in the manufacturer's active product line. Identification of equivalent substitute parts is necessary for ongoing production support, maintenance applications, and design continuity where this resistor value and package specification are required.

Substiute Parts

RK73H1HTTC2802D

KOA Speer Electronics, Inc.In Stock: 931RK73H1HTTC2802D Datasheet

Current PartRFQ

RK73H1HTTCM2802D

KOA Speer Electronics, Inc.In Stock: 799RK73H1HTTCM2802D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC2802D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 28 kOhms (exact match required)
• Tolerance: ±0.5% (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 Parameters:

• Package / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level MSL 1 (required for storage and handling compatibility)

Substitute parts must satisfy all electrical, mechanical, and compliance criteria without exception. The RK73H1HTTCM2802D meets these requirements and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM2802D is the manufacturer-recommended substitute for the RK73H1HTTC2802D. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73H series and maintain identical electrical, mechanical, and thermal specifications.

Selection Basis:

The primary distinction between these parts is product status. The RK73H1HTTC2802D is designated "Not For New Designs," while the RK73H1HTTCM2802D carries "Active" status. This designation reflects the manufacturer's current production and support commitment.

Both parts satisfy identical compliance requirements:

• AEC-Q200 automotive qualification
• ROHS3 compliance
• REACH unaffected status
• MSL 1 moisture sensitivity rating

For applications requiring the 28 kOhms ±0.5% 0.05W 0201 package resistor with automotive-grade specifications, the RK73H1HTTCM2802D is the appropriate selection for ongoing production and new applications. The RK73H1HTTC2802D remains suitable for maintenance and repair of existing assemblies where inventory is available.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM2802D be used as a direct replacement for the RK73H1HTTC2802D?

A: Yes. Both parts are electrically and mechanically identical. They share the same resistance value (28 kOhms), tolerance (±0.5%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C). No circuit modifications or re-qualification are required.

Q: What is the significance of the "Not For New Designs" status on the RK73H1HTTC2802D?

A: This designation indicates that the manufacturer has transitioned this part to a legacy status and is no longer recommending it for new product designs. The RK73H1HTTCM2802D is the active equivalent. Existing inventory of the RK73H1HTTC2802D remains available for maintenance and repair applications.

Q: Are there any differences in the automotive qualification between these parts?

A: No. Both parts carry identical AEC-Q200 automotive qualification and are suitable for automotive applications requiring this standard.

Q: Do these parts have the same moisture sensitivity rating?

A: Yes. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or shelf life.

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

A: Yes. The parts are identical in package dimensions (0201 / 0603 Metric), footprint, and termination configuration. No PCB layout modifications are necessary.

Q: What is the difference between the part numbers RK73H1HTTC2802D and RK73H1HTTCM2802D?

A: The difference is indicated by the "M" character in the RK73H1HTTCM2802D designation. This character reflects a manufacturing or product line update by KOA Speer Electronics, Inc., while maintaining full electrical and mechanical equivalence. The "M" variant represents the current active production part.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RK73H1HTTC2802D and RK73H1HTTCM2802D are ROHS3 compliant and REACH unaffected.