Overview
The BAT43WS-G3-18 is a small signal Schottky diode produced by Vishay General Semiconductor - Diodes Division. This diode is designed for general purpose applications and is known for its very low turn-on voltage and fast switching capabilities. It is protected by a PN junction guard ring against excessive voltage, such as electrostatic discharges. The BAT43WS-G3-18 is available in the SOD-323 package and is AEC-Q101 qualified, making it suitable for automotive and other demanding environments.
Key Specifications
| Parameter | Test Condition | Symbol | Value | Unit |
|---|---|---|---|---|
| Repetitive peak reverse voltage | - | VRRM | 30 | V |
| Forward continuous current | - | IF | 200 | mA |
| Repetitive peak forward current | tp < 1 s, δ < 0.5 | IFRM | 500 | mA |
| Surge forward current | tp < 10 ms | IFSM | 4 | A |
| Power dissipation | - | Ptot | 150 | mW |
| Thermal resistance junction to ambient air | - | RthJA | 650 | K/W |
| Junction temperature | - | Tj | 125 | °C |
| Operating temperature range | - | Top | -55 to +125 | °C |
| Storage temperature range | - | Tstg | -55 to +150 | °C |
| Forward voltage | IF = 200 mA | VF | 1000 | mV |
| Reverse recovery time | IF = 10 mA, IR = 100 mA, iR = 1 mA, RL = 100 Ω | trr | 5 | ns |
| Diode capacitance | VR = 1 V, f = 1 MHz | CD | 7 | pF |
Key Features
- Very low turn-on voltage and fast switching capabilities.
- Protected by a PN junction guard ring against excessive voltage, such as electrostatic discharges.
- AEC-Q101 qualified, suitable for automotive and other demanding environments.
- Small signal Schottky diode in SOD-323 package.
- Low forward voltage drop (e.g., VF = 260 mV to 330 mV at IF = 2 mA for BAT43WS-G).
- High surge forward current capability (IFSM = 4 A).
- Wide operating temperature range (-55°C to +125°C).
- Low diode capacitance (CD = 7 pF at VR = 1 V, f = 1 MHz).
Applications
The BAT43WS-G3-18 is suitable for a variety of general purpose applications, including:
- Automotive systems, thanks to its AEC-Q101 qualification.
- Switching power supplies and DC-DC converters.
- High-frequency applications due to its fast switching and low capacitance.
- Protection circuits against electrostatic discharges.
- Low-voltage, high-current applications requiring low forward voltage drop.
Q & A
- What is the repetitive peak reverse voltage of the BAT43WS-G3-18?
The repetitive peak reverse voltage (VRRM) is 30 V. - What is the forward continuous current rating of the BAT43WS-G3-18?
The forward continuous current (IF) is 200 mA. - What is the surge forward current capability of the BAT43WS-G3-18?
The surge forward current (IFSM) is 4 A for tp < 10 ms. - What is the thermal resistance junction to ambient air for the BAT43WS-G3-18?
The thermal resistance junction to ambient air (RthJA) is 650 K/W. - What is the operating temperature range of the BAT43WS-G3-18?
The operating temperature range is -55°C to +125°C. - What is the storage temperature range of the BAT43WS-G3-18?
The storage temperature range is -55°C to +150°C. - What is the forward voltage drop at 200 mA for the BAT43WS-G3-18?
The forward voltage (VF) at IF = 200 mA is 1000 mV. - What is the reverse recovery time of the BAT43WS-G3-18?
The reverse recovery time (trr) is 5 ns. - What is the diode capacitance of the BAT43WS-G3-18?
The diode capacitance (CD) is 7 pF at VR = 1 V, f = 1 MHz. - Is the BAT43WS-G3-18 AEC-Q101 qualified?
Yes, the BAT43WS-G3-18 is AEC-Q101 qualified, making it suitable for automotive applications.
