RK73H1HTTC7323D Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC7323D is a 732 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The RK73H1HTTC7323D carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to currently supported components that meet identical electrical and mechanical specifications.

Substiute Parts

RK73H1HTTC7323D

KOA Speer Electronics, Inc.In Stock: 1202RK73H1HTTC7323D Datasheet

Current PartRFQ

RK73H1HTTCM7323D

KOA Speer Electronics, Inc.In Stock: 1101RK73H1HTTCM7323D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC7323D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 732 kOhms (exact match required)
• Tolerance: ±0.5% (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 / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive rating: AEC-Q200 (exact match required)
• RoHS status: ROHS3 Compliant (exact match required)
• Moisture sensitivity level: MSL 1 (exact match required)

Substitute parts must satisfy all parameters listed above. Parts meeting these criteria are functionally and mechanically interchangeable in applications designed for the RK73H1HTTC7323D.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM7323D is the manufacturer-recommended substitute for the RK73H1HTTC7323D. Both components are manufactured by KOA Speer Electronics, Inc., and belong to the same RK73H series.

Key Distinction: The primary difference between these parts is product status. The RK73H1HTTC7323D is designated "Not For New Designs," while the RK73H1HTTCM7323D carries an "Active" status, indicating it is the current production equivalent supported by the manufacturer.

Compliance & Certification: Both parts maintain identical compliance profiles:

• AEC-Q200 automotive qualification
• ROHS3 compliance
• MSL 1 moisture sensitivity rating
• REACH unaffected status
• EAR99 export classification

Electrical & Mechanical Equivalence: All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range) and mechanical parameters (package, dimensions, terminations) are identical between the main part and substitute.

For applications currently using the RK73H1HTTC7323D, transition to the RK73H1HTTCM7323D ensures continued access to a supported component with identical performance characteristics and automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM7323D be used as a direct replacement for the RK73H1HTTC7323D?

A: Yes. The RK73H1HTTCM7323D is electrically and mechanically equivalent to the RK73H1HTTC7323D. All critical parameters—resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package dimensions, and automotive certifications—are identical. Direct substitution is supported without circuit modification.

Q: What is the significance of the "Not For New Designs" status on the RK73H1HTTC7323D?

A: "Not For New Designs" indicates that the manufacturer has transitioned this part to end-of-life status and no longer recommends its use in new product development. The RK73H1HTTCM7323D is the active replacement that should be used for new designs and ongoing production.

Q: Are there any packaging differences between these parts?

A: Both parts use the 0201 (0603 Metric) package with identical physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). No PCB layout or assembly process modifications are required.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the RK73H1HTTC7323D and RK73H1HTTCM7323D are AEC-Q200 qualified, meeting automotive industry reliability and performance standards. Both are suitable for automotive applications requiring this certification level.

Q: What is the moisture sensitivity level for these resistors?

A: Both parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture-related degradation concerns. Standard handling and storage practices are sufficient; no special moisture-control measures are required.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. Regulatory and compliance profiles are identical.