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Product Detailed Parameters
- Description：DIODE MOD SCHOTT 150V 75A TO-249
- Series：159CMQ
- Mfr：SMC Diode Solutions
- Package：Bulk
- Diode Configuration：1 Pair Common Cathode
- Technology：Schottky
- Voltage - DC Reverse (Vr) (Max)：150 V
- Current - Average Rectified (Io) (per Diode)：75A
- Voltage - Forward (Vf) (Max) @ If：1.05 V @ 80 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：-
- Current - Reverse Leakage @ Vr：1.5 mA @ 150 V
- Operating Temperature - Junction：-55°C ~ 175°C
- Mounting Type：Chassis Mount
- Package / Case：TO-249AA (Modified), D-60
- Supplier Device Package：TO-249
- Grade：-
- Qualification：-
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Overview
The SMC Diode Solutions 159CMQ150 is a center-tap Schottky rectifier in a TO-249(9 pin) package. It features a peak repetitive reverse voltage of 150 V and an average rectified forward current of 75 A per leg (150 A per device). The junction temperature range spans from -55 °C to +175 °C. Typical thermal resistance from junction to case is 1.0 °C/W per leg. The device operates at high frequencies with low forward voltage drop and includes guard ring technology for enhanced ruggedness.
Feature Summary
- Center tap module design with isolated heatsink
- Low forward voltage drop for high efficiency
- Guard ring structure for enhanced ruggedness and long term reliability
- High purity, high temperature epoxy encapsulation
Applications
- Switching power supply
- Converters
- Free-Wheeling diodes
- Reverse battery protection
Procurement Notes
Verify the specific part number suffix against the manufacturer datasheet N182 Rev. A to ensure correct voltage rating and package configuration. Confirm that the ordering information matches the required shipping quantity and Pb-Free status. Cross-reference mechanical dimensions and mounting torque specifications with your system requirements before finalizing procurement orders.
Selection Notes
Select this component for applications requiring high current handling and fast switching speeds. The TO-249(9 pin) package supports multiple leads per terminal for high frequency PC board mounting. Ensure the thermal management solution accounts for the specified junction-to-case thermal resistance values to maintain operation within the 175 °C maximum junction temperature limit.
Part Context
This device belongs to the 159CMQ series of Schottky rectifiers manufactured by SMC Diode Solutions. The series includes variants such as the 159CMQ135 and 159CMQ150, differentiated primarily by their reverse voltage ratings. All parts in this series share similar thermal-mechanical specifications and are traceable to the wafer lot for quality assurance purposes.
Replacement Considerations
Public confirmed substitute part numbers are not provided in the source documentation. Verify compatibility with existing circuit designs when considering alternative components.
FAQ
What is the peak one cycle non-repetitive surge current rating?
The peak one cycle non-repetitive surge current is 864 A for an 8.3 ms half sine pulse.
Does the 159CMQ150 contain lead?
No, the 159CMQ150 is a Pb-Free device.
What is the typical junction capacitance value?
The typical junction capacitance is 1000 pF, measured at VR = 5V, TC = 25 °C, and fSIG = 1MHz.
