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Product Detailed Parameters
- Description:DIODE STD 1200V 40A TO247 [B]
- Series:-
- Mfr:Microchip Technology
- Package:Tube
- Technology:Standard
- Voltage - DC Reverse (Vr) (Max):1200 V
- Current - Average Rectified (Io):40A
- Voltage - Forward (Vf) (Max) @ If:3.3 V @ 40 A
- Speed:Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):350 ns
- Current - Reverse Leakage @ Vr:100 µA @ 1200 V
- Capacitance @ Vr, F:-
- Mounting Type:Through Hole
- Package / Case:TO-247-2
- Supplier Device Package:TO-247 [B]
- Operating Temperature - Junction:-55°C ~ 175°C
- Grade:-
- Qualification:-
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Overview
The APT40DQ120BG is a Fast Recovery Epitaxial Diode (FRED) manufactured by Microchip Technology. It features a maximum repetitive peak reverse voltage of 1200 V and an average rectified forward current of 40 A. The device utilizes ultrafast recovery technology with soft recovery characteristics to minimize switching losses and electromagnetic interference. It is housed in a TO-247 package with two leads and a tab, designed for high thermal performance. The component operates within a junction temperature range of -55°C to +175°C.
Feature Summary
- Ultrafast recovery times for efficient high-frequency operation
- Soft recovery characteristics reducing voltage overshoot and EMI
- Low forward voltage drop for improved conduction efficiency
- Robust TO-247 package design for effective heat dissipation
Applications
- High-frequency DC-DC converters
- Uninterruptible Power Supplies (UPS)
- Induction heating systems
- Motor drive circuits
Procurement Notes
Verify the specific suffix BG against official Microchip documentation to confirm pinout and thermal pad configuration. Ensure the procurement channel provides genuine components with traceable manufacturing data. Cross-reference the datasheet revision date to validate technical specifications before integration into production designs.
Selection Notes
Select this component for applications requiring fast switching speeds and low reverse recovery charge. The 1200 V rating suits medium-voltage industrial systems. Evaluate thermal management requirements based on the 40 A current rating and TO-247 package thermal resistance. Confirm compatibility with circuit snubber designs due to soft recovery traits.
Part Context
This part belongs to Microchip's Advanced Power Technology (APT) series of discrete power diodes. It represents a standard FRED product line optimized for general-purpose high-efficiency rectification. The TO-247 form factor is widely adopted in industrial power electronics for its balance of current handling and mounting simplicity.
Replacement Considerations
Consult official substitution guides for equivalent 1200 V, 40 A FRED diodes in TO-247 packages. Verify matching electrical parameters such as reverse recovery time and forward voltage before replacing.
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