Overview
The 1N4937G is a fast recovery rectifier diode produced by onsemi. It is designed for high-efficiency applications, particularly in DC power supplies, inverters, converters, ultrasonic systems, choppers, and free-wheeling diodes. This diode features a glass passivated die construction and a diffused junction, ensuring fast switching times and high reliability.
The 1N4937G has a peak repetitive reverse voltage (VRRM) of 600V and an average rectified output current (IO) of 1.0A. It is packaged in a DO-41 molded plastic case with a UL flammability classification of 94V-0. The diode is lead-free and RoHS compliant, making it suitable for a wide range of modern electronic designs.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Peak Repetitive Reverse Voltage | VRRM | 600 | V |
| Working Peak Reverse Voltage | VRWM | 600 | V |
| Average Rectified Output Current @ TA = 75°C | IO | 1.0 | A |
| Non-Repetitive Peak Forward Surge Current (8.3ms single half sine-wave) | IFSM | 30 | A |
| Forward Voltage @ IF = 1.0A | VFM | 1.2 | V |
| Peak Reverse Current @ TA = 25°C | IRM | 5.0 | μA |
| Reverse Recovery Time | trr | 200 | ns |
| Typical Junction Capacitance | Cj | 15 | pF |
| Typical Thermal Resistance Junction to Ambient | RθJA | 100 | K/W |
| Operating and Storage Temperature Range | TJ, TSTG | -65 to +150 | °C |
Key Features
- Glass Passivated Die Construction: Ensures high reliability and durability.
- Diffused Junction: Provides fast switching for high efficiency.
- High Current Capability and Low Forward Voltage Drop: Supports high current applications with minimal voltage drop.
- Surge Overload Rating to 30A Peak: Handles transient surge currents effectively.
- Lead Free Finish, RoHS Compliant: Meets environmental standards and is suitable for modern electronic designs.
- Fast Recovery Time of 200ns: Ideal for high-frequency applications.
- Molded Plastic Case (DO-41): UL flammability classification 94V-0.
- Plated Leads Solderable per MIL-STD-202, Method 208: Easy to integrate into various circuits.
Applications
- DC Power Supplies: Efficient rectification in power supply circuits.
- Inverters and Converters: High-frequency switching applications.
- Ultrasonic Systems: Reliable operation in high-frequency ultrasonic devices.
- Choppers and Free-Wheeling Diodes: Fast recovery times make it suitable for chopper circuits and free-wheeling diode applications.
- Low RF Interference: Minimizes radio-frequency interference in various electronic systems.
Q & A
- What is the peak repetitive reverse voltage (VRRM) of the 1N4937G diode?
The peak repetitive reverse voltage (VRRM) of the 1N4937G diode is 600V.
- What is the average rectified output current (IO) of the 1N4937G diode at 75°C?
The average rectified output current (IO) of the 1N4937G diode at 75°C is 1.0A.
- What is the non-repetitive peak forward surge current (IFSM) of the 1N4937G diode?
The non-repetitive peak forward surge current (IFSM) of the 1N4937G diode is 30A for an 8.3ms single half sine-wave.
- What is the forward voltage drop (VFM) of the 1N4937G diode at 1.0A?
The forward voltage drop (VFM) of the 1N4937G diode at 1.0A is 1.2V.
- What is the reverse recovery time (trr) of the 1N4937G diode?
The reverse recovery time (trr) of the 1N4937G diode is 200ns.
- Is the 1N4937G diode RoHS compliant?
Yes, the 1N4937G diode is lead-free and RoHS compliant).
- What is the operating temperature range of the 1N4937G diode?
The operating and storage temperature range of the 1N4937G diode is -65 to +150°C).
- What type of case does the 1N4937G diode use?
The 1N4937G diode is packaged in a DO-41 molded plastic case).
- Is the 1N4937G diode suitable for high-frequency applications?
Yes, the 1N4937G diode is suitable for high-frequency applications due to its fast recovery time of 200ns).
- What are some common applications of the 1N4937G diode?
The 1N4937G diode is commonly used in DC power supplies, inverters, converters, ultrasonic systems, choppers, and free-wheeling diode applications).
