Overview
The ZM4742A-GS18 is a silicon planar power Zener diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the ZM4728A to ZM4761A series, designed for use in stabilizing and clipping circuits with high power ratings. The ZM4742A-GS18 is known for its reliability and performance in various electronic applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage Range (VZ) | 12 V | V |
| Test Current (IZT1) | 21 mA | mA |
| Reverse Leakage Current (IR) | 0.25 μA | μA |
| Dynamic Resistance (ZZ) | 9.1 Ω | Ω |
| Surge Current (IZSM) | 700 mA | mA |
| Power Dissipation (Ptot) | 1000 mW | mW |
| Junction to Ambient Air Thermal Resistance (RthJA) | 170 K/W | K/W |
| Junction Temperature (Tj) | 175 °C | °C |
| Storage Temperature Range (Tstg) | -65 to +175 °C | °C |
| Package Type | MELF (DO-213AB) |
Key Features
- Silicon planar power Zener diodes for high power rating applications.
- Standard Zener voltage tolerance of ±5%.
- Available in the DO-41 case with type designation 1N4728A to 1N4761A.
- Material categorization compliant with relevant standards.
- High reliability and stability in stabilizing and clipping circuits.
- MELF (DO-213AB) package with glass encapsulation.
- UL 94 V-0 flammability rating and MSL level 1 according to J-STD-020.
Applications
- Stabilizing and clipping circuits in industrial, automotive, and consumer electronics.
- Voltage regulation and reference circuits.
- Overvoltage protection and surge suppression.
- Signal switching and polarity protection.
Q & A
- What is the Zener voltage range of the ZM4742A-GS18?
The Zener voltage range of the ZM4742A-GS18 is 12 V.
- What is the test current (IZT1) for the ZM4742A-GS18?
The test current (IZT1) for the ZM4742A-GS18 is 21 mA.
- What is the reverse leakage current (IR) of the ZM4742A-GS18?
The reverse leakage current (IR) of the ZM4742A-GS18 is 0.25 μA.
- What is the dynamic resistance (ZZ) of the ZM4742A-GS18?
The dynamic resistance (ZZ) of the ZM4742A-GS18 is 9.1 Ω.
- What is the surge current (IZSM) rating of the ZM4742A-GS18?
The surge current (IZSM) rating of the ZM4742A-GS18 is 700 mA.
- What is the maximum power dissipation (Ptot) of the ZM4742A-GS18?
The maximum power dissipation (Ptot) of the ZM4742A-GS18 is 1000 mW.
- What is the junction to ambient air thermal resistance (RthJA) of the ZM4742A-GS18?
The junction to ambient air thermal resistance (RthJA) of the ZM4742A-GS18 is 170 K/W.
- What is the maximum junction temperature (Tj) of the ZM4742A-GS18?
The maximum junction temperature (Tj) of the ZM4742A-GS18 is 175 °C.
- What is the storage temperature range (Tstg) for the ZM4742A-GS18?
The storage temperature range (Tstg) for the ZM4742A-GS18 is -65 to +175 °C.
- In what package type is the ZM4742A-GS18 available?
The ZM4742A-GS18 is available in the MELF (DO-213AB) package.
