CDBU0320 Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBU0320 is an active Schottky rectifier diode manufactured by Comchip Technology, designed for surface mount applications in the 0603 (1608 Metric) package. This component operates at 20 V DC reverse voltage with 350 mA average rectified current, featuring fast recovery characteristics suitable for high-frequency switching circuits. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

CDBU0320

Comchip TechnologyIn Stock: 749CDBU0320 Datasheet

Current PartRFQ

CDBU0320-HF

Comchip TechnologyIn Stock: 891CDBU0320-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDBU0320 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part CDBU0320-HF maintains identical specifications in the following key areas:

• Voltage rating: 20 V DC reverse voltage (Vr)
• Current capacity: 350 mA average rectified current (Io)
• Forward voltage drop: 600 mV maximum at 200 mA
• Reverse recovery time: 6.4 ns
• Reverse leakage current: 5 µA at 10 V
• Capacitance: 50 pF at 0V, 1MHz
• Package configuration: 2-SMD, No Lead in 0603 (1608 Metric) form factor
• Mounting type: Surface Mount
• Technology classification: Schottky rectifier

Both parts are manufactured by Comchip Technology, carry active product status, and comply with ROHS3 and REACH requirements. The "-HF" suffix designation indicates a variant within the same base product family (CDBU0320) with identical parametric performance.

Parameter Comparison

Engineering Selection Recommendations

Both CDBU0320 and CDBU0320-HF are functionally equivalent components suitable for direct substitution in circuit applications. Selection between these parts should be based on the following engineering criteria:

Product Status and Compliance: Both parts maintain active product status with identical ROHS3 compliance and REACH unaffected classification, ensuring regulatory alignment for current and future manufacturing requirements.

Inventory and Supply Availability: CDBU0320-HF currently maintains higher inventory levels (851 Pcs) compared to CDBU0320 (685 Pcs), supporting supply chain continuity and lead time optimization.

Parametric Equivalence: Complete electrical and mechanical parameter alignment ensures drop-in compatibility without circuit redesign or performance degradation. The identical 20 V reverse voltage rating, 350 mA current capacity, 6.4 ns reverse recovery time, and 0603 package configuration support seamless integration into existing designs.

Moisture and Temperature Performance: Both parts carry MSL 1 rating with unlimited shelf life and identical maximum junction temperature of 125°C, providing equivalent reliability characteristics across storage and operational conditions.

Frequently Asked Questions (FAQ)

Q: Can CDBU0320-HF be used as a direct replacement for CDBU0320 in production?

A: Yes. CDBU0320-HF is a parametric equivalent with identical electrical specifications, package configuration, and compliance certifications. No circuit modifications or design changes are required for substitution.

Q: Are there any differences in forward voltage drop between CDBU0320 and CDBU0320-HF?

A: No. Both parts specify 600 mV maximum forward voltage at 200 mA. Forward voltage characteristics are identical.

Q: What does the "-HF" suffix indicate in CDBU0320-HF?

A: The "-HF" designation identifies a variant within the CDBU0320 base product family. Both parts share identical parametric specifications and are manufactured by Comchip Technology.

Q: Are both parts suitable for high-frequency switching applications?

A: Yes. Both CDBU0320 and CDBU0320-HF feature fast recovery characteristics with 6.4 ns reverse recovery time and support switching speeds up to 500 ns, making them suitable for high-frequency rectification circuits.

Q: Can these parts be used interchangeably in tape and reel packaging?

A: Yes. Both parts are supplied in Tape & Reel (TR) packaging with identical 0603 (1608 Metric) surface mount configuration, supporting automated assembly processes without equipment reconfiguration.

Q: What is the reverse leakage current specification for both parts?

A: Both CDBU0320 and CDBU0320-HF specify 5 µA maximum reverse leakage current at 10 V, ensuring equivalent leakage performance in circuit applications.

Q: Are moisture sensitivity considerations the same for both parts?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture bake-out requirements prior to assembly.

Q: What is the maximum junction temperature for these Schottky diodes?

A: Both parts specify 125°C maximum junction temperature, providing identical thermal operating limits for circuit design calculations.