RK73H1HTTC10R0F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC10R0F is a 10 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package format. This component is rated for 0.05W (1/20W) power dissipation and meets AEC-Q200 automotive qualification standards with moisture-resistant construction.

The RK73H1HTTC10R0F carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has discontinued this variant for new applications. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to actively supported product lines while preserving electrical and mechanical compatibility.

Substiute Parts

RK73H1HTTC10R0F

KOA Speer Electronics, Inc.In Stock: 30963RK73H1HTTC10R0F Datasheet

Current PartRFQ

RK73H1HTTCM10R0F

KOA Speer Electronics, Inc.In Stock: 985RK73H1HTTCM10R0F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC10R0F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 10 Ohms (exact match required)
• Tolerance: ±1% (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 format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)
• Physical dimensions: 0.024" L x 0.012" W / 0.60mm x 0.30mm (exact match required)
• Maximum seated height: 0.010" / 0.26mm (exact match required)

Compliance & Certification:

• AEC-Q200 automotive qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory adherence)
• Moisture Sensitivity Level 1 (required for handling and storage compatibility)

The substitute part RK73H1HTTCM10R0F meets all electrical, mechanical, and compliance requirements and is classified as an active product, making it suitable for new design transitions.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM10R0F is the manufacturer-recommended substitute for the RK73H1HTTC10R0F. Both components are manufactured by KOA Speer Electronics, Inc. within the same RK73H series and share identical electrical specifications, mechanical dimensions, and compliance certifications.

Selection Basis:

The RK73H1HTTCM10R0F demonstrates full parameter equivalence across all critical electrical characteristics (10 Ohm resistance, ±1% tolerance, 0.05W power rating, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range) and mechanical specifications (0201 package, 0.60mm x 0.30mm dimensions, 0.26mm maximum height).

Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and Moisture Sensitivity Level 1 rating, ensuring compatibility with automotive and industrial applications requiring regulatory adherence and moisture-resistant performance.

The primary distinction is product status: the RK73H1HTTCM10R0F carries "Active" status, indicating ongoing manufacturer support and availability for new designs, whereas the RK73H1HTTC10R0F is designated "Not For New Designs." This status difference supports transition to the substitute part for design continuity and long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM10R0F be used as a direct replacement for the RK73H1HTTC10R0F in existing designs?

A: Yes. The RK73H1HTTCM10R0F is electrically and mechanically identical to the RK73H1HTTC10R0F. Both components share the same resistance value (10 Ohms), tolerance (±1%), power rating (0.05W), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), package format (0201), and physical dimensions. No circuit modifications or PCB layout changes are required.

Q: Are there any differences in automotive qualification between these parts?

A: No. Both the RK73H1HTTC10R0F and RK73H1HTTCM10R0F carry AEC-Q200 automotive qualification. They are suitable for automotive applications requiring this certification standard.

Q: What is the significance of the "Not For New Designs" status on the RK73H1HTTC10R0F?

A: "Not For New Designs" indicates that KOA Speer Electronics has discontinued this specific part variant for new applications. While existing inventory may remain available, the manufacturer recommends transitioning to the RK73H1HTTCM10R0F (Active status) for new designs to ensure long-term supply availability and manufacturer support.

Q: Do both parts have the same moisture sensitivity level?

A: Yes. Both the RK73H1HTTC10R0F and RK73H1HTTCM10R0F are rated at Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions and unlimited shelf life under standard storage conditions.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both components are ROHS3 compliant and REACH unaffected. They meet identical regulatory requirements for use in regulated industries and applications.

Q: Can the RK73H1HTTCM10R0F be used in high-temperature applications?

A: Yes. The RK73H1HTTCM10R0F operates across the full temperature range of -55°C ~ 155°C with a temperature coefficient of ±200ppm/°C, identical to the RK73H1HTTC10R0F. It is suitable for applications requiring operation at elevated temperatures within this specified range.

Q: Is the 0201 package format the same for both parts?

A: Yes. Both components use the 0201 (0603 Metric) package format with identical physical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). They are footprint-compatible on PCBs designed for 0201 resistors.