RK73H1HTTC2263D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC2263D is a 226 kOhm ±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The RK73H1HTTC2263D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line. Identification of equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active production components where applicable.

Substiute Parts

RK73H1HTTC2263D

KOA Speer Electronics, Inc.In Stock: 755RK73H1HTTC2263D Datasheet

Current PartRFQ

RK73H1HTTCM2263D

KOA Speer Electronics, Inc.In Stock: 744RK73H1HTTCM2263D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC2263D is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 226 kOhms
• Tolerance: ±0.5%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Regulatory compliance: ROHS3, REACH Unaffected

The substitute part RK73H1HTTCM2263D matches all critical electrical and mechanical parameters. 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 RK73H1HTTCM2263D is the direct equivalent substitute for the RK73H1HTTC2263D. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73H series and provide identical electrical performance and mechanical compatibility.

Selection Basis:

The substitute part maintains full compliance with automotive AEC-Q200 qualification, ROHS3 regulatory requirements, and REACH directives. All critical parameters—resistance value, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range—are identical between the original and substitute parts.

The primary distinction is product lifecycle status. The RK73H1HTTCM2263D is classified as "Active," indicating ongoing manufacturing and supply availability through the manufacturer's current product line. The RK73H1HTTC2263D is designated "Not For New Designs," reflecting its superseded status.

For new designs and ongoing production requirements, the RK73H1HTTCM2263D is the appropriate selection. For existing designs currently using the RK73H1HTTC2263D, direct substitution with the RK73H1HTTCM2263D is electrically and mechanically compatible without circuit modification.

Frequently Asked Questions (FAQ)

Q: Are the RK73H1HTTC2263D and RK73H1HTTCM2263D electrically identical?

A: Yes. Both components have identical resistance (226 kOhms), tolerance (±0.5%), power rating (0.05W), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C). They are electrically equivalent.

Q: Can the RK73H1HTTCM2263D be used as a direct replacement in existing assemblies?

A: Yes. The substitute part is mechanically and electrically compatible. Package dimensions, termination count, and all electrical specifications are identical. No circuit modifications or PCB layout changes are required.

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

A: This designation indicates the RK73H1HTTC2263D has been superseded in the manufacturer's active product portfolio. While existing inventory may remain available, the manufacturer recommends transitioning to the active equivalent (RK73H1HTTCM2263D) for new designs and future production to ensure long-term supply continuity.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the RK73H1HTTC2263D and RK73H1HTTCM2263D are AEC-Q200 qualified and suitable for automotive applications. Both maintain moisture-resistant construction and are ROHS3 compliant.

Q: Are there any differences in packaging or moisture sensitivity?

A: No. Both components are supplied in 0201 (0603 Metric) packages with identical physical dimensions (0.024" L x 0.012" W, 0.60mm x 0.30mm). Both have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements.

Q: Which part should be specified for new production orders?

A: The RK73H1HTTCM2263D should be specified for new designs and production orders. As the active product, it ensures manufacturer support, ongoing availability, and supply chain reliability.