Overview
The BAT54W-7 from Diodes Incorporated is a surface mount Schottky barrier diode designed for various high-frequency and low-voltage applications. This diode is part of the BAT54W series, which is known for its low forward voltage drop, fast switching capabilities, and ultra-small surface mount package. The BAT54W-7 is particularly suited for use in switching power supplies, DC-DC converters, freewheeling diodes, reverse polarity protections, and blocking diodes. It is fully RoHS compliant, halogen and antimony free, and features a PN junction guard ring for transient and ESD protection.
Key Specifications
| Characteristic | Symbol | Value | Unit | Test Condition |
|---|---|---|---|---|
| Reverse Breakdown Voltage | V(BR)R | 30 | V | IR = 100 μA |
| Forward Voltage | VF | 240 - 320 - 400 - 500 - 800 | mV | IF = 0.1 mA, 1 mA, 10 mA, 30 mA, 100 mA |
| Reverse Leakage Current | IR | 2.0 | μA | VR = 25 V |
| Total Capacitance | CT | 10 | pF | VR = 1.0 V, f = 1.0 MHz |
| Reverse Recovery Time | tRR | 5.0 | ns | IF = 10 mA through IR = 10 mA to IR = 1.0 mA, RL = 100 Ω |
| Forward Continuous Current | IF | 200 | mA | |
| Repetitive Peak Forward Current | IFRM | 300 | mA | duty cycle tp / T < 0.5 |
| Surge Forward Current | IFSM | 600 | mA | tp = 10 ms |
| Power Dissipation | Ptot | 230 | mW | FR-4 board with recommended soldering footprint |
| Thermal Resistance Junction to Ambient Air | RθJA | 420 | K/W | JEDEC® 51-3 on FR-4 board with recommended soldering footprint |
| Operating Temperature Range | Top | -55 to +125 | °C | |
| Storage Temperature Range | Tstg | -65 to +150 | °C | |
| Package | SOT323 (Standard) |
Key Features
- Low Forward Voltage Drop: The BAT54W-7 features a low forward voltage drop, which is essential for minimizing power losses in high-frequency applications.
- Fast Switching: This diode is designed for fast switching, making it suitable for applications requiring quick response times.
- Ultra-Small Surface Mount Package: The SOT323 package is compact, making it ideal for space-constrained designs.
- PN Junction Guard Ring for Transient and ESD Protection: The diode includes a PN junction guard ring to protect against transient and electrostatic discharge (ESD) events.
- Totally Lead-Free & Fully RoHS Compliant: The BAT54W-7 is lead-free and fully compliant with RoHS directives, ensuring environmental sustainability.
- Halogen and Antimony Free: This diode is also halogen and antimony free, aligning with green technology standards.
Applications
- Switching Power Supplies (SMPS): The BAT54W-7 is used in SMPS due to its low forward voltage drop and fast switching capabilities.
- DC-DC Converters: It is suitable for DC-DC converters where high efficiency and fast response are required.
- Freewheeling Diodes: The diode is often used as a freewheeling diode to protect against back EMF in inductive loads.
- Reverse Polarity Protections: It can be used to protect circuits from reverse polarity conditions.
- Blocking Diodes: The BAT54W-7 can serve as a blocking diode in various circuit configurations.
Q & A
- What is the reverse breakdown voltage of the BAT54W-7?
The reverse breakdown voltage (V(BR)R) of the BAT54W-7 is 30 V.
- What is the maximum forward continuous current for the BAT54W-7?
The maximum forward continuous current (IF) is 200 mA.
- What is the typical forward voltage drop at 1 mA current?
The typical forward voltage drop (VF) at 1 mA current is 320 mV.
- What is the thermal resistance junction to ambient air for the BAT54W-7?
The thermal resistance junction to ambient air (RθJA) is 420 K/W.
- Is the BAT54W-7 RoHS compliant?
Yes, the BAT54W-7 is fully RoHS compliant and lead-free.
- What is the operating temperature range for the BAT54W-7?
The operating temperature range is -55 to +125 °C.
- What package type does the BAT54W-7 come in?
The BAT54W-7 comes in a SOT323 (Standard) package.
- What are some common applications for the BAT54W-7?
Common applications include SMPS, DC-DC converters, freewheeling diodes, reverse polarity protections, and blocking diodes.
- Does the BAT54W-7 have any built-in protection features?
Yes, it includes a PN junction guard ring for transient and ESD protection.
- Is the BAT54W-7 halogen and antimony free?
Yes, the BAT54W-7 is halogen and antimony free, aligning with green technology standards.
