RK73B1HTTC205G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC205G is a 2 MOhm ±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 active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73B1HTTC205G

KOA Speer Electronics, Inc.In Stock: 968RK73B1HTTC205G Datasheet

Current PartRFQ

RK73B1HTTCM205G

KOA Speer Electronics, Inc.In Stock: 782RK73B1HTTCM205G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC205G is determined by strict equivalence across the following critical parameters:

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

Mechanical Parameters: Package format (0201), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and seated height (0.010" / 0.26mm) must match exactly.

Compliance Parameters: Automotive AEC-Q200 qualification, ROHS3 compliance, and MSL rating (1) must be maintained.

Composition: Thick film construction is required.

The substitute part RK73B1HTTCM205G meets all these criteria and is classified as "Active" product status, making it a direct functional equivalent suitable for replacement in new designs and production continuity.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM205G is the direct substitute for RK73B1HTTC205G based on complete parameter equivalence. The primary distinction is product lifecycle status: the original part is designated "Not For New Designs," while the substitute maintains "Active" status from the same manufacturer and series.

Both parts are manufactured by KOA Speer Electronics, Inc., within the RK73B series, and satisfy identical electrical, mechanical, and compliance requirements. The substitute part carries current production status and is suitable for new design implementations, production continuity, and field replacements where the original part specification must be maintained.

Selection of RK73B1HTTCM205G ensures compliance with automotive AEC-Q200 standards, ROHS3 regulations, and all thermal and electrical performance criteria established for the original component.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM205G be used as a direct replacement for RK73B1HTTC205G in existing designs?

A: Yes. Both parts are electrically and mechanically identical. All critical parameters including resistance (2 MOhms), tolerance (±2%), power rating (0.05W), package format (0201), temperature coefficient (±200ppm/°C), and operating range (-55°C ~ 155°C) are equivalent. Both meet AEC-Q200 automotive qualification.

Q: Why is the original part marked "Not For New Designs"?

A: Product lifecycle management designates older part numbers as "Not For New Designs" to encourage migration to active alternatives. The substitute part RK73B1HTTCM205G provides identical functionality with current production support.

Q: Are there any package or footprint differences between these parts?

A: No. Both parts use identical 0201 package format (0603 Metric) with matching physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and seated height (0.010" / 0.26mm). PCB footprints are interchangeable.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both RK73B1HTTC205G and RK73B1HTTCM205G carry AEC-Q200 qualification, ROHS3 compliance, and MSL rating 1 (Unlimited moisture sensitivity level).

Q: What is the temperature coefficient specification, and is it identical between parts?

A: Both parts specify ±200ppm/°C temperature coefficient with operating range -55°C ~ 155°C. This parameter is identical across both components.

Q: Are there inventory or lead time considerations for the substitute part?

A: The substitute part RK73B1HTTCM205G is classified as "Active" product status, indicating current production availability. Inventory levels should be confirmed with the supplier for specific procurement timelines.