Overview
The BAT43W-E3-18 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 BAT43W-E3-18 is available in both commercial and AEC-Q101 qualified versions, ensuring its suitability for a wide range of applications, including automotive systems.
Key Specifications
| Parameter | Test Condition | Symbol | Value | Unit |
|---|---|---|---|---|
| Repetitive peak reverse voltage | - | VRRM | 30 | V |
| Forward continuous current | - | IF | 300 | 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 | On FR-4 board with recommended soldering footprint | Ptot | 230 | mW |
| Thermal resistance junction to ambient air | According to JEDEC® 51-3 on FR-4 board with recommended soldering footprint | RthJA | 420 | K/W |
| Maximum junction temperature | - | Tj | 125 | °C |
| Operating temperature range | - | Top | -55 to +125 | °C |
| Forward voltage | IF = 15 mA | VF | 450 | mV |
| Reverse recovery time | IF = 10 mA, IR = 10 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 versions available, making it suitable for automotive applications.
- RoHS-compliant and meets UL 94 V-0 flammability rating.
- Moisture Sensitivity Level (MSL) 1.
- Surface mount package in SOD-123.
Applications
The BAT43W-E3-18 is designed for general purpose applications, including but not limited to:
- Automotive systems due to its AEC-Q101 qualification.
- Switching and rectification in power supplies.
- High-frequency applications requiring fast recovery times.
- Protection circuits against electrostatic discharges.
Q & A
- What is the repetitive peak reverse voltage of the BAT43W-E3-18?
The repetitive peak reverse voltage (VRRM) is 30 V.
- What is the forward continuous current rating of the BAT43W-E3-18?
The forward continuous current (IF) is 300 mA.
- What is the surge forward current rating of the BAT43W-E3-18?
The surge forward current (IFSM) is 4 A for tp < 10 ms.
- What is the maximum junction temperature of the BAT43W-E3-18?
The maximum junction temperature (Tj) is 125 °C.
- What is the operating temperature range of the BAT43W-E3-18?
The operating temperature range (Top) is -55 to +125 °C.
- What is the forward voltage drop at 15 mA for the BAT43W-E3-18?
The forward voltage (VF) at 15 mA is 450 mV.
- What is the reverse recovery time of the BAT43W-E3-18?
The reverse recovery time (trr) is 5 ns.
- What is the diode capacitance of the BAT43W-E3-18?
The diode capacitance (CD) is 7 pF at VR = 1 V and f = 1 MHz.
- Is the BAT43W-E3-18 RoHS-compliant?
- What is the package type of the BAT43W-E3-18?
The package type is SOD-123, a surface mount package.
