Overview
The 1N4937GPEHE3/91 is a fast recovery rectifier diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the 1N4933 to 1N4937 series, known for their high efficiency and reliability in various electrical applications. The 1N4937GPEHE3/91 is designed for fast switching rectification and is suitable for use in power supplies, inverters, converters, and as freewheeling diodes in consumer and telecommunication devices.
Key Specifications
| Parameter | Symbol | 1N4937 | Unit |
|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM | 600 | V |
| Maximum RMS Voltage | VRMS | 420 | V |
| Maximum DC Blocking Voltage | VDC | 600 | V |
| Maximum Average Forward Rectified Current | IF(AV) | 1.0 | A |
| Peak Forward Surge Current | IFSM | 30 | A |
| Maximum Instantaneous Forward Voltage | VF | 1.2 | V |
| Maximum DC Reverse Current at Rated DC Blocking Voltage | IR | 5.0 μA (at TA = 25 °C), 100 μA (at TA = 100 °C) | μA |
| Reverse Recovery Time | trr | 200 ns | ns |
| Typical Junction Capacitance | CJ | 15 pF (at 4.0 V, 1 MHz) | pF |
| Typical Thermal Resistance Junction to Ambient | RθJA | 55 °C/W | °C/W |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -50 to +150 °C | °C |
Key Features
- Fast Recovery Time: The 1N4937GPEHE3/91 features a fast recovery time of 200 ns, making it suitable for high-efficiency applications.
- High Current Capability: It has a maximum average forward rectified current of 1.0 A and a peak forward surge current of 30 A.
- Low Forward Voltage Drop: The diode has a maximum instantaneous forward voltage of 1.2 V at 1.0 A.
- Low Reverse Leakage Current: The maximum DC reverse current is 5.0 μA at 25 °C and 100 μA at 100 °C.
- RoHS Compliant: The component is lead-free and RoHS compliant, ensuring environmental safety.
- UL Flammability Rating: The molded epoxy body meets the UL 94 V-0 flammability rating.
Applications
The 1N4937GPEHE3/91 is designed for use in various applications, including:
- Power Supplies: Suitable for rectification in power supply circuits.
- Inverters and Converters: Used in inverter and converter circuits due to its fast recovery characteristics.
- Freewheeling Diodes: Often used as freewheeling diodes in consumer and telecommunication devices.
- Industrial and Automotive Systems: Can be used in industrial and automotive systems requiring high reliability and efficiency.
Q & A
- What is the maximum repetitive peak reverse voltage of the 1N4937GPEHE3/91?
The maximum repetitive peak reverse voltage is 600 V.
- What is the maximum average forward rectified current of this diode?
The maximum average forward rectified current is 1.0 A.
- What is the peak forward surge current rating of the 1N4937GPEHE3/91?
The peak forward surge current rating is 30 A.
- What is the reverse recovery time of this diode?
The reverse recovery time is 200 ns.
- Is the 1N4937GPEHE3/91 RoHS compliant?
Yes, the component is lead-free and RoHS compliant.
- What is the operating junction temperature range of the 1N4937GPEHE3/91?
The operating junction temperature range is -50 to +150 °C.
- What is the typical thermal resistance junction to ambient of this diode?
The typical thermal resistance junction to ambient is 55 °C/W.
- What are the common applications of the 1N4937GPEHE3/91?
Common applications include power supplies, inverters, converters, and as freewheeling diodes in consumer and telecommunication devices.
- What is the case material and flammability rating of the 1N4937GPEHE3/91?
The case material is molded epoxy, and it meets the UL 94 V-0 flammability rating.
- What is the maximum instantaneous forward voltage of the 1N4937GPEHE3/91 at 1.0 A?
The maximum instantaneous forward voltage is 1.2 V at 1.0 A.
