CDBMT240L-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The CDBMT240L-G is a Schottky rectifier diode manufactured by Comchip Technology, rated for 40V DC reverse voltage and 2A average rectified current in a surface mount SOD-123H package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The part maintains ROHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and commercial applications requiring fast recovery rectification.

Substiute Parts

CDBMT240L-G

Comchip TechnologyIn Stock: 797CDBMT240L-G Datasheet

Current PartRFQ

CDBMT240L-HF

Comchip TechnologyIn Stock: 1217CDBMT240L-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDBMT240L-G is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 400 mV @ 2 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 1 mA @ 40 V
• Capacitance @ Vr, F: 160pF @ 4V, 1MHz

Mechanical Parameters (Must Match):

• Package / Case: SOD-123H
• Mounting Type: Surface Mount

Environmental Parameters (Must Match):

• Operating Temperature - Junction: -55°C ~ 100°C
• Technology: Schottky

Compliance Parameters (Must Match):

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

The substitute part CDBMT240L-HF meets all specified electrical, mechanical, environmental, and compliance parameters. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The CDBMT240L-HF serves as the direct parametric equivalent to the obsolete CDBMT240L-G. Both parts share identical electrical specifications, mechanical packaging, and environmental operating ranges. The CDBMT240L-HF maintains active product status with Comchip Technology, ensuring continued availability and manufacturing support.

Selection of CDBMT240L-HF is appropriate for:

• Direct replacement in existing designs currently using CDBMT240L-G
• New designs requiring 40V/2A Schottky rectification in SOD-123H surface mount packages
• Applications requiring ROHS3 compliance and unlimited moisture sensitivity tolerance
• Circuits operating within the -55°C to 100°C junction temperature range

The packaging format difference (bulk versus Tape & Reel) does not affect electrical or mechanical compatibility and reflects standard manufacturing and distribution practices for active versus obsolete product lines.

Frequently Asked Questions (FAQ)

Q: Can CDBMT240L-HF be used as a direct replacement for CDBMT240L-G in existing PCB assemblies?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The SOD-123H surface mount package, pin configuration, and electrical performance are equivalent. Substitution requires no circuit modifications or design changes.

Q: What is the significance of the packaging format difference (bulk versus Tape & Reel)?

A: Packaging format refers to supply and handling methods only. Bulk packaging indicates loose component supply, while Tape & Reel (TR) indicates automated assembly-ready format. Both formats contain identical components with identical electrical and mechanical specifications. The choice between formats depends on assembly process requirements, not component performance.

Q: Are there any compliance or certification differences between CDBMT240L-G and CDBMT240L-HF?

A: No. Both parts maintain identical ROHS3 compliance status, REACH unaffected status, and Moisture Sensitivity Level 1 (Unlimited) rating. Compliance certifications are equivalent.

Q: Why is CDBMT240L-G classified as obsolete?

A: Product status reflects manufacturing lifecycle decisions by Comchip Technology. The CDBMT240L-HF represents the active equivalent, ensuring continued design support and procurement availability.

Q: What electrical parameters must match for substitution to be valid?

A: All of the following must match exactly: Voltage - DC Reverse (40V), Current - Average Rectified (2A), Voltage - Forward (400mV @ 2A), Speed (Fast Recovery ≤ 500ns), Current - Reverse Leakage (1mA @ 40V), and Capacitance (160pF @ 4V, 1MHz).

Q: Can CDBMT240L-HF be used in temperature ranges outside -55°C to 100°C?

A: No. The specified operating temperature range for junction temperature is -55°C to 100°C. Operation outside this range is not supported by the component specifications.