Overview
The BZX84B4V7-G3-18 is a silicon planar Zener diode produced by Vishay General Semiconductor - Diodes Division. This component is part of the BZX84-G series, which is known for its high reliability and versatility in various electronic applications. The BZX84B4V7-G3-18 is specifically designed to provide voltage regulation and protection in circuits, with a nominal Zener voltage of 4.7 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage Range (Nominal) | 4.7 | V |
| Test Current (IZT) | 2; 5 mA | |
| Reverse Leakage Current (IR) at VR | 50 nA @ 4.2 V | |
| Power Dissipation (Ptot) | 300 mW | |
| Thermal Resistance Junction to Ambient (RthJA) | 420 K/W | |
| Junction Temperature (Tj) | 150 °C | |
| Storage Temperature Range (Tstg) | -65 to +150 °C | |
| Operating Temperature Range (Top) | -55 to +150 °C | |
| Package | SOT-23 | |
| Weight | 9.2 mg | |
| Flammability Rating | UL 94 V-0 | |
| Moisture Sensitivity Level | MSL level 1 (according J-STD-020) |
Key Features
- Silicon planar Zener diodes with Zener voltages graded according to the international E24 standard.
- Nominal Zener voltage of 4.7 V with a tolerance of ±2%.
- High power dissipation of up to 300 mW.
- Low thermal resistance junction to ambient (RthJA) of 420 K/W.
- Wide operating temperature range from -55 °C to +150 °C.
- Surface mount package (SOT-23) for easy integration into modern circuit designs.
- UL 94 V-0 flammability rating and MSL level 1 moisture sensitivity.
Applications
The BZX84B4V7-G3-18 is suitable for a variety of applications, including:
- Voltage regulation and stabilization in power supplies and electronic circuits.
- Signal limiting and clamping in communication and audio circuits.
- Overvoltage protection in automotive, industrial, and consumer electronics.
- Use in rectifier circuits, switches, and signal modulators.
Q & A
- What is the nominal Zener voltage of the BZX84B4V7-G3-18?
The nominal Zener voltage is 4.7 V.
- What is the tolerance of the Zener voltage for this component?
The tolerance is ±2%.
- What is the maximum power dissipation of the BZX84B4V7-G3-18?
The maximum power dissipation is 300 mW.
- What is the thermal resistance junction to ambient (RthJA) of this component?
The thermal resistance junction to ambient is 420 K/W.
- What is the operating temperature range of the BZX84B4V7-G3-18?
The operating temperature range is from -55 °C to +150 °C.
- What package type is used for the BZX84B4V7-G3-18?
The package type is SOT-23.
- Is the BZX84B4V7-G3-18 RoHS compliant?
- What is the flammability rating of the BZX84B4V7-G3-18?
The flammability rating is UL 94 V-0.
- What is the moisture sensitivity level of the BZX84B4V7-G3-18?
The moisture sensitivity level is MSL level 1 (according J-STD-020).
- What are some common applications for the BZX84B4V7-G3-18?
Common applications include voltage regulation, signal limiting, overvoltage protection, and use in rectifier circuits.
