The P4SMAJ12ADF-13 from Diodes Incorporated is a unidirectional surface-mount transient-voltage-suppression diode with a 12V reverse standoff voltage and a 400W peak pulse power rating. It is designed to protect electronic circuits against transient surges, inductive switching events, and abnormal overvoltage conditions.
The device has a breakdown-voltage range of 13.3V to 14.7V at a 1mA test current. Its maximum clamping voltage is 19.9V at 20.1A peak pulse current, while maximum reverse leakage is 1μA at the 12V standoff voltage. Peak pulse ratings are specified using a 10/1000μs waveform.
Additional ratings include a 40A peak forward surge current, 1W steady-state power dissipation at TL=75°C, and an operating and storage temperature range of -55°C to +150°C. The 400W rating is a peak transient capability under the specified pulse and thermal conditions, not a continuous power rating.
The component is supplied in a compact two-terminal D-FLAT surface-mount package. Package height ranges from approximately 0.90mm to 1.10mm, with an overall length of approximately 5.00mm to 5.60mm, supporting low-profile and automated PCB assembly.
Key Specifications:
- Manufacturer: Diodes Incorporated
- Manufacturer Part Number: P4SMAJ12ADF-13
- Device Type: Transient Voltage Suppressor Diode
- Configuration: Unidirectional
- Reverse Standoff Voltage: 12V
- Breakdown-Voltage Range: 13.3V to 14.7V
- Breakdown Test Current: 1mA
- Maximum Clamping Voltage: 19.9V
- Peak Pulse Current: 20.1A
- Peak Pulse Power: 400W
- Pulse Waveform: 10/1000μs
- Maximum Reverse Leakage: 1μA at 12V
- Peak Forward Surge Current: 40A
- Steady-State Power Dissipation: 1W at TL=75°C
- Operating and Storage Temperature: -55°C to +150°C
- Package: D-FLAT
- Number of Terminals: 2
- Mounting Type: Surface Mount
- Device Marking: IE
Typical Applications:
Suitable for power-input protection, DC supply rails, industrial control equipment, communication devices, consumer electronics, power adapters, control boards, and other circuits requiring transient-surge and overvoltage protection. The final selection should consider the maximum normal line voltage, surge waveform, pulse energy, PCB thermal design, and downstream voltage tolerance.
评价
目前还没有评价