CDBUR0320 Equivalent & Substitute Parts Reference

Part Overview

The CDBUR0320 is a Schottky rectifier diode manufactured by Comchip Technology, designed for surface mount applications in the 0603/SOD-523F package. This component operates at 20 V DC reverse voltage with 350 mA average rectified current and features fast recovery characteristics with a reverse recovery time of 6.4 ns. The part is classified as Active product status and maintains full RoHS3 compliance. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

CDBUR0320

Comchip TechnologyIn Stock: 1006CDBUR0320 Datasheet

Current PartRFQ

CDBU0320

Comchip TechnologyIn Stock: 749CDBU0320 Datasheet

Parametric EquivalentRFQ

CDBU0320-HF

Comchip TechnologyIn Stock: 891CDBU0320-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBUR0320 are identified based on strict equivalence of electrical and mechanical parameters. The substitution logic is based on the following criteria:

Primary Equivalence Parameters:

• Voltage - DC Reverse (Vr) (Max): 20 V
• Current - Average Rectified (Io): 350 mA
• Voltage - Forward (Vf) (Max) @ If: 600 mV @ 200 mA
• Reverse Recovery Time (trr): 6.4 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 10 V
• Capacitance @ Vr, F: 50 pF @ 0 V, 1 MHz
• Package / Case: 2-SMD, No Lead
• Operating Temperature - Junction (Max): 125°C

Identified Substitute Parts:

1. CDBU0320 — Parametric equivalent with identical electrical specifications. Package designation listed as 0603 (1608 Metric), functionally equivalent to 0603/SOD-523F.

2. CDBU0320-HF — Parametric equivalent with identical electrical specifications. Designated as a variant of CDBU0320 with the same electrical performance and package compatibility.

All three parts (CDBUR0320, CDBU0320, CDBU0320-HF) share identical core electrical parameters and are manufactured by Comchip Technology, ensuring direct substitution capability within the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CDBUR0320, CDBU0320, and CDBU0320-HF—are Active product status components manufactured by Comchip Technology with full RoHS3 compliance and REACH Unaffected status. Selection among these parts is based on availability and inventory levels:

• CDBUR0320: 932 Pcs in stock
• CDBU0320: 685 Pcs in stock
• CDBU0320-HF: 851 Pcs in stock

All parts meet identical electrical specifications and package requirements. Component selection should prioritize availability and supply chain requirements without technical differentiation, as all three parts deliver equivalent performance within the specified application parameters.

Frequently Asked Questions (FAQ)

Q: Can CDBU0320 be used as a direct replacement for CDBUR0320?

A: Yes. CDBU0320 is a parametric equivalent with identical electrical specifications including voltage rating (20 V), current rating (350 mA), forward voltage (600 mV @ 200 mA), and reverse recovery time (6.4 ns). Both use 2-SMD, No Lead surface mount packages with equivalent 0603 form factors.

Q: What is the difference between CDBU0320 and CDBU0320-HF?

A: Both parts share identical electrical parameters and performance characteristics. CDBU0320-HF is designated as a variant of CDBU0320 with the same specifications. Selection between them is based on inventory availability and supply chain requirements.

Q: Are the package designations 0603/SOD-523F and 0603 (1608 Metric) compatible?

A: Yes. Both designations refer to equivalent 0603 surface mount packages. The metric designation (1608) and SOD-523F reference describe the same physical form factor suitable for direct board-level substitution.

Q: Do all three parts meet the same compliance requirements?

A: Yes. CDBUR0320, CDBU0320, and CDBU0320-HF are all ROHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. All parts are suitable for applications with identical regulatory and environmental requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. All three parts are electrically and mechanically equivalent. Existing PCB designs and circuit implementations using CDBUR0320 accept CDBU0320 or CDBU0320-HF without modification to schematic, layout, or assembly processes.

Q: What is the reverse recovery time specification, and why is it important?

A: Reverse recovery time (trr) is 6.4 ns for all three parts. This parameter defines the time required for the diode to switch from forward conduction to reverse blocking state. The specified value ensures fast switching performance suitable for high-frequency rectification and switching applications.