CDBUR00340 Equivalent & Substitute Parts

Part Overview

The CDBUR00340 is a Schottky diode manufactured by Comchip Technology, rated for 40 V DC reverse voltage with 30 mA average rectified current. This component is packaged in a 0603/SOD-523F surface mount configuration and is classified as a small signal rectifier diode. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified to provide design flexibility for procurement, inventory management, and supply chain continuity. Alternative part numbers within the same electrical and mechanical specifications enable component selection based on packaging format, availability, and distribution channel requirements.

Substiute Parts

CDBUR00340

Comchip TechnologyIn Stock: 1198CDBUR00340 Datasheet

Current PartRFQ

CDBU00340

Comchip TechnologyIn Stock: 2222CDBU00340 Datasheet

Parametric EquivalentRFQ

CDBU00340-HF

Comchip TechnologyIn Stock: 132991CDBU00340-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDBUR00340 are qualified based on electrical parameter equivalence and mechanical compatibility. The substitution criteria are defined by the following parameters:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 30 mA
• Voltage - Forward (Vf) (Max) @ If: 370 mV @ 1 mA
• Current - Reverse Leakage @ Vr: 1 µA @ 40 V
• Capacitance @ Vr, F: 1.5 pF @ 1V, 1MHz
• Operating Temperature - Junction (Max): 125°C

Mechanical Parameters (Must Match):

• Technology: Schottky
• Package / Case: 2-SMD, No Lead
• Supplier Device Package: 0603/SOD-523F or equivalent variant
• Mounting Type: Surface Mount

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts may differ in packaging format (Tape & Reel versus Cut Tape) and inventory availability. These differences do not affect electrical or mechanical compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—CDBUR00340, CDBU00340, and CDBU00340-HF—are manufactured by Comchip Technology and maintain identical electrical and mechanical specifications. Selection between these parts is determined by packaging and distribution requirements rather than functional performance.

CDBUR00340 is supplied in Tape & Reel (TR) format and is suitable for high-volume automated assembly operations.

CDBU00340 is supplied in Cut Tape (CT) and Digi-Reel® format, providing flexibility for lower-volume production runs and mixed-component kitting.

CDBU00340-HF is supplied in Tape & Reel (TR) format with significantly higher inventory availability (132,901 pieces in stock), making it the preferred choice for immediate procurement and supply chain security.

All parts carry ROHS3 compliance and MSL 1 (unlimited moisture sensitivity), confirming suitability for standard surface mount assembly processes without special handling requirements. Product status is active for all three variants, ensuring long-term availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can CDBU00340 be used as a direct replacement for CDBUR00340 in circuit design?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: CDBUR00340 uses Tape & Reel (TR), while CDBU00340 uses Cut Tape (CT) and Digi-Reel®. Circuit performance is unaffected by this packaging difference.

Q: What is the difference between CDBU00340 and CDBU00340-HF?

A: Both parts are electrically and mechanically identical with identical packaging (Tape & Reel). The primary difference is inventory availability: CDBU00340-HF has substantially higher stock levels (132,901 pieces versus 2,149 pieces for CDBU00340). The "-HF" designation indicates high-frequency or high-availability variant status.

Q: Are all three parts suitable for automated surface mount assembly?

A: Yes. All three parts are classified as Surface Mount with 2-SMD, No Lead package configuration in 0603/SOD-523F form factor. All are compatible with standard pick-and-place equipment and reflow soldering processes.

Q: Do these parts require special moisture handling during storage and assembly?

A: No. All three parts carry Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without special moisture control measures. Standard ESD precautions apply.

Q: Which part should be selected for new design qualification?

A: CDBU00340-HF is recommended for new designs due to active product status, ROHS3 compliance, and superior inventory availability. This ensures design continuity and supply chain stability throughout the product lifecycle.

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

A: No. All three parts carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and EAR99 ECCN classification. Regulatory status is equivalent across all variants.