Overview
The BAT43WS-HE3-18 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 part of the BAT43WS series, which includes AEC-Q101 qualified versions, making it suitable for automotive and other high-reliability applications.
Key Specifications
| Parameter | Test Condition | Symbol | Value | Unit |
|---|---|---|---|---|
| Repetitive peak reverse voltage | Tamb = 25 °C | VRRM | 30 | V |
| Forward continuous current | Tamb = 25 °C | 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 | Tamb = 25 °C | Ptot | 150 | mW |
| Thermal resistance junction to ambient air | Tamb = 25 °C | 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 |
| Forward voltage | IF = 2 mA | VF | 260-330 | mV |
| Diode capacitance | VR = 1 V, f = 1 MHz | CD | 7 | pF |
| Reverse recovery time | IF = 10 mA, IR = 100 mA, iR = 1 mA, RL = 100 Ω | trr | 5 | ns |
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 for automotive and high-reliability applications.
- RoHS-compliant and commercial grade options available.
- Low forward voltage drop, typically 260-330 mV at 2 mA.
- Low diode capacitance of 7 pF at VR = 1 V and f = 1 MHz.
- Fast reverse recovery time of 5 ns.
- Operating temperature range from -55 °C to +125 °C.
- Moisture Sensitivity Level (MSL) 1.
Applications
- General purpose rectification and switching applications.
- Polarity protection in electronic circuits.
- Signal switching and detection.
- Automotive systems requiring high reliability and AEC-Q101 qualification.
- Industrial and consumer electronics where low forward voltage drop and fast switching are critical.
Q & A
- What is the repetitive peak reverse voltage of the BAT43WS-HE3-18 diode?
The repetitive peak reverse voltage is 30 V.
- What is the forward continuous current rating of the BAT43WS-HE3-18 diode?
The forward continuous current rating is 200 mA.
- What is the surge forward current rating of the BAT43WS-HE3-18 diode?
The surge forward current rating is 4 A for tp < 10 ms.
- What is the typical forward voltage drop at 2 mA for the BAT43WS-HE3-18 diode?
The typical forward voltage drop at 2 mA is 260-330 mV.
- What is the reverse recovery time of the BAT43WS-HE3-18 diode?
The reverse recovery time is 5 ns.
- Is the BAT43WS-HE3-18 diode AEC-Q101 qualified?
Yes, the BAT43WS-HE3-18 diode is AEC-Q101 qualified.
- What is the operating temperature range of the BAT43WS-HE3-18 diode?
The operating temperature range is from -55 °C to +125 °C.
- What is the storage temperature range of the BAT43WS-HE3-18 diode?
The storage temperature range is from -55 °C to +150 °C.
- What is the diode capacitance of the BAT43WS-HE3-18 diode at 1 MHz?
The diode capacitance is 7 pF at VR = 1 V and f = 1 MHz.
- Is the BAT43WS-HE3-18 diode RoHS-compliant?
Yes, the BAT43WS-HE3-18 diode is RoHS-compliant.
