Overview
The ZM4742A L0G is a surface mount Zener diode produced by Taiwan Semiconductor Corporation. This component is part of the ZM4728A to ZM4761A series, known for their high power rating and stability in voltage regulation. The ZM4742A L0G is specifically designed to operate at a Zener voltage of 12 volts with a power dissipation of 1 watt and a tolerance of ±5%. It is packaged in a MELF (Metal Electrode Leadless Face) DO-213AB glass package, making it suitable for a variety of applications requiring reliable voltage stabilization.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) | 12 | V |
| Power Dissipation (Ptot) | 1000 | mW |
| Test Current (IZT) | 21 | mA |
| Reverse Leakage Current (IR) | 0.25 | μA |
| Junction Temperature (Tj) | 175 | °C |
| Storage Temperature Range (Tstg) | -65 to +175 | °C |
| Junction to Ambient Air Thermal Resistance (RthJA) | 170 | K/W |
| Package Type | MELF (DO-213AB) glass |
Key Features
- Silicon planar power Zener diode for high power rating applications.
- Standard Zener voltage tolerance of ±5%.
- Surface mount MELF package for compact and efficient design.
- High power dissipation of 1 watt.
- Low dynamic resistance and high surge current capability.
- Suitable for stabilizing and clipping circuits.
Applications
- Voltage regulation and stabilization in power supplies.
- Clipping and limiting circuits to protect against voltage spikes.
- Reference voltage generation in electronic circuits.
- Overvoltage protection in various electronic devices.
- Audio and signal processing circuits requiring stable voltage references.
Q & A
- What is the Zener voltage of the ZM4742A L0G?
The Zener voltage of the ZM4742A L0G is 12 volts.
- What is the power dissipation rating of the ZM4742A L0G?
The power dissipation rating is 1 watt.
- What is the package type of the ZM4742A L0G?
The package type is MELF (DO-213AB) glass.
- What is the junction temperature limit for the ZM4742A L0G?
The junction temperature limit is 175°C.
- What is the storage temperature range for the ZM4742A L0G?
The storage temperature range is -65°C to +175°C.
- What are common applications for the ZM4742A L0G?
Common applications include voltage regulation, clipping circuits, reference voltage generation, and overvoltage protection.
- What is the tolerance of the Zener voltage for the ZM4742A L0G?
The tolerance of the Zener voltage is ±5%.
- What is the test current (IZT) for the ZM4742A L0G?
The test current (IZT) is 21 mA.
- What is the reverse leakage current (IR) for the ZM4742A L0G?
The reverse leakage current (IR) is 0.25 μA.
- Is the ZM4742A L0G suitable for high power applications?
Yes, it is designed for high power applications with a power dissipation of 1 watt.
