RK73B1HTTC225G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC225G is a 2.2 MOhms ±2% thick film chip resistor in 0201 package format, rated for 0.05W (1/20W) power dissipation. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," which necessitates identification of equivalent substitute components that maintain identical electrical and mechanical specifications while offering active product status for ongoing production requirements.

Substiute Parts

RK73B1HTTC225G

KOA Speer Electronics, Inc.In Stock: 915RK73B1HTTC225G Datasheet

Current PartRFQ

RK73B1HTTCM225G

KOA Speer Electronics, Inc.In Stock: 790RK73B1HTTCM225G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC225G is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (2.2 MOhms), tolerance (±2%), and power rating (0.05W) must be identical. Temperature coefficient (±200ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Specifications: Package format (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and seated height (0.010" / 0.26mm maximum) must match exactly to ensure PCB compatibility and assembly process compatibility.

Compliance & Ratings: AEC-Q200 automotive qualification, ROHS3 compliance, and Moisture Sensitivity Level 1 are mandatory for substitution in automotive applications.

Manufacturer: KOA Speer Electronics, Inc. maintains the RK73B series specification consistency across equivalent part variants.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM225G is the manufacturer-recommended substitute for the RK73B1HTTC225G. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73B series and maintain identical electrical and mechanical specifications.

The primary distinction between these parts is product status: RK73B1HTTC225G is designated "Not For New Designs," while RK73B1HTTCM225G carries "Active" status. For new automotive designs and ongoing production applications, RK73B1HTTCM225G is the appropriate selection.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1). Electrical performance, thermal characteristics, and physical package dimensions are functionally equivalent, ensuring direct substitution without circuit redesign or PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM225G be used as a direct replacement for RK73B1HTTC225G in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The RK73B1HTTCM225G can be substituted directly without circuit modification, PCB redesign, or assembly process changes.

Q: Why is RK73B1HTTC225G marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status in the manufacturer's product portfolio. The RK73B1HTTCM225G is the active equivalent that replaces it for new production and design implementations.

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both components are packaged in 0201 (0603 Metric) format with identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm).

Q: Do both parts meet automotive qualification standards?

A: Yes. Both RK73B1HTTC225G and RK73B1HTTCM225G are AEC-Q200 qualified for automotive applications and maintain ROHS3 compliance.

Q: What is the difference in packaging between these parts?

A: The main part specifies Tape & Reel (TR) packaging. The substitute part packaging information is not specified in the provided data. Confirm packaging requirements with the supplier for your specific procurement needs.

Q: Are there any thermal performance differences?

A: No. Both parts have identical temperature coefficient (±200ppm/°C) and operating temperature range (-55°C ~ 155°C).