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LRM 5408 General Purpose Rectifier Diode (1N5408) — 3A | 1000V | DO-201AD
The LRM 5408 (also known as 1N5408) is a high-performance, general-purpose silicon rectifier diode built for demanding power electronics applications. With a maximum forward current of 3 Amperes and a peak reverse voltage of 1000 Volts, this diode is engineered for reliable AC-to-DC conversion in a wide range of circuits.
Whether you are building a power supply, AC adapter, inverter, or battery charger, the LRM 5408 delivers stable, low-leakage performance in a rugged axial DO-201AD package, making it a trusted choice for engineers, students, and electronics hobbyists across India.
Key Specifications
| Parameter | Value |
|---|---|
| Diode Type | General Purpose Silicon Rectifier |
| Maximum Forward Current (Io) | 3A |
| Peak Reverse Voltage (Vrrm) | 1000V |
| Forward Voltage Drop (Vf) | 1.2V @ 3A |
| Peak Surge Current (Ifsm) | 200A (8.3ms) |
| Peak Reverse Current | 10µA @ 25°C |
| Junction Temperature | -55°C to +150°C |
| Package | DO-201AD (Axial Through-Hole) |
| Body Size | 6mm × 3mm |
Features & Benefits
High Voltage Blocking — Handles up to 1000V reverse voltage, making it safe for mains-connected and industrial circuits.
High Surge Current Tolerance — Can withstand peak surge currents of up to 200A, protecting your circuit against transient spikes.
Low Forward Voltage Drop — A forward voltage of just 1.2V at 3A minimizes power loss and heat generation in your design.
Low Reverse Leakage — Minimal leakage current (10µA) ensures energy efficiency and reduces unnecessary power draw in standby circuits.
Rugged Axial Package (DO-201AD) — Through-hole mounting for easy manual and PCB assembly. Compatible with standard perfboards and prototype boards.
Wide Temperature Range — Operates reliably from -55°C to +150°C, suitable for both indoor and industrial environments.
Applications
The LRM 5408 / 1N5408 rectifier diode is widely used in:
- AC to DC rectifier circuits
- Linear and switching power supplies
- Battery chargers and UPS systems
- Inverter and converter circuits
- Freewheeling diode in relay & motor driver circuits
- Reverse polarity protection
- Voltage clamping and snubber circuits
- Solar panel charge controllers
- TV chassis and motherboards
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