Equivalent & Substitute Parts for RK73H1HTTC1072D

Part Overview

The RK73H1HTTC1072D is a 10.7 kOhms ±0.5% 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 thick film construction.

The RK73H1HTTC1072D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line.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 actively supported alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73H1HTTC1072D

KOA Speer Electronics, Inc.In Stock: 1088RK73H1HTTC1072D Datasheet

Current PartRFQ

RK73H1HTTCM1072D

KOA Speer Electronics, Inc.In Stock: 775RK73H1HTTCM1072D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC1072D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 10.7 kOhms
• Tolerance: ±0.5%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters:

• Package type: 0201 (0603 Metric)
• Number of terminations: 2
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Maximum seated height: 0.010" (0.26mm)

Compliance & Environmental Parameters:

• Automotive qualification: AEC-Q200
• Composition: Thick Film
• Moisture resistance: Required
• RoHS compliance: ROHS3
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must match all electrical specifications, maintain identical package dimensions, and retain all automotive and environmental certifications. Manufacturer series continuity within KOA Speer Electronics, Inc. (RK73H series) further validates substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM1072D is the direct equivalent substitute for the RK73H1HTTC1072D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73H series and share identical electrical, mechanical, and environmental specifications.

The primary distinction is product status: the original part (RK73H1HTTC1072D) is designated "Not For New Designs," while the substitute (RK73H1HTTCM1072D) maintains "Active" status. This transition reflects standard manufacturer lifecycle management and ensures access to actively supported inventory and manufacturing processes.

Both parts satisfy AEC-Q200 automotive qualification requirements, maintain ROHS3 compliance, and provide moisture-resistant thick film construction suitable for automotive and industrial applications operating across the -55°C to 155°C temperature range. The identical 0201 package footprint, dimensional specifications, and electrical parameters ensure direct PCB-level compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM1072D be used as a direct replacement for RK73H1HTTC1072D in existing designs?

A: Yes. Both components are electrically and mechanically identical. The RK73H1HTTCM1072D provides the same 10.7 kOhms resistance, ±0.5% tolerance, 0.05W power rating, and 0201 package configuration. No circuit redesign or PCB layout modification is required.

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

A: This designation indicates the RK73H1HTTC1072D has been superseded in the manufacturer's active product line. New designs should specify the RK73H1HTTCM1072D to ensure long-term supply availability and access to current manufacturing processes. Existing designs using the original part may continue operation without modification.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the RK73H1HTTC1072D and RK73H1HTTCM1072D carry AEC-Q200 qualification, confirming suitability for automotive-grade applications. Both maintain identical operating temperature ranges (-55°C ~ 155°C) and moisture-resistant thick film construction.

Q: Do the parts differ in packaging or tape & reel specifications?

A: The main part specifies "Tape & Reel (TR)" packaging. The substitute part does not specify packaging format in the provided data. Confirm packaging requirements with the supplier to ensure compatibility with automated assembly processes.

Q: Are there any compliance or environmental differences between the two parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Both maintain identical RoHS and environmental certifications.

Q: What is the inventory status for each part?

A: The original RK73H1HTTC1072D has 1071 pieces in stock. The substitute RK73H1HTTCM1072D has 753 pieces in stock. Verify current availability with your supplier for procurement planning.