RK73B1HTTC272G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC272G is a 2.7 kOhms ±2% thick film chip resistor in 0201 package (0603 Metric) rated for 0.05W power dissipation. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where this resistor value and package specification remain functionally required.

Substiute Parts

RK73B1HTTC272G

KOA Speer Electronics, Inc.In Stock: 821RK73B1HTTC272G Datasheet

Current PartRFQ

RK73B1HTTCM272G

KOA Speer Electronics, Inc.In Stock: 881RK73B1HTTCM272G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC272G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 2.7 kOhms (exact match required)
• Tolerance: ±2% (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 type: 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 1 (required for handling and storage compatibility)

The substitute part RK73B1HTTCM272G meets all these criteria and is therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM272G is the direct substitute for RK73B1HTTC272G based on complete electrical and mechanical parameter equivalence. The substitute part maintains identical specifications across all critical functional parameters: resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package dimensions, and composition.

The primary distinction between the two parts is product status. The main part number RK73B1HTTC272G is designated "Not For New Designs," indicating manufacturer discontinuation or transition. The substitute part RK73B1HTTCM272G carries "Active" status, confirming ongoing availability and manufacturer support.

Both parts satisfy identical compliance requirements: AEC-Q200 automotive qualification, ROHS3 compliance, and Moisture Sensitivity Level 1. These certifications ensure the substitute part meets the same regulatory and environmental standards as the original part.

For applications requiring the 2.7 kOhms ±2% 0.05W 0201 package resistor with automotive AEC-Q200 qualification, the RK73B1HTTCM272G provides full functional and mechanical compatibility with direct pin-for-pin and footprint interchangeability.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM272G be used as a direct replacement for RK73B1HTTC272G in existing designs?

A: Yes. The substitute part is electrically and mechanically identical across all specified parameters. Both parts share the same resistance value (2.7 kOhms), tolerance (±2%), power rating (0.05W), package type (0201), composition (thick film), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C). PCB footprints and component placement are identical.

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

A: This designation indicates the manufacturer has transitioned this part number out of active production. The substitute part RK73B1HTTCM272G carries "Active" status, confirming it remains in current production with ongoing manufacturer support and availability.

Q: Are both parts qualified for automotive applications?

A: Yes. Both RK73B1HTTC272G and RK73B1HTTCM272G meet AEC-Q200 automotive qualification standards, ensuring compliance with automotive reliability and performance requirements.

Q: Do the parts have identical physical dimensions?

A: Yes. Both parts have identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) with maximum seated height of 0.010" (0.26mm). They are fully compatible with the same PCB layout and assembly equipment.

Q: Are there any differences in RoHS or environmental compliance?

A: No. Both parts are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating identical environmental handling and storage requirements.

Q: What is the difference between the part numbers RK73B1HTTC272G and RK73B1HTTCM272G?

A: The part numbers differ only in the internal designation code (TC vs. TCM). This variation reflects manufacturer product line updates while maintaining complete electrical and mechanical equivalence. The substitute part represents the current active production version.