BZX84C3V9LT1G

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BZX84C3V9LT1G

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DIODE ZENER 3.9V 225MW SOT23-3

  • HerstellerOnsemi

  • Herstellerteil #BZX84C3V9LT1G

  • Paket SOT-23-3

  • Auf Lager4852

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Spezifikationen

Attribut Wert
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Voltage - Zener(Nom)(Vz) 3.9 V
Tolerance ±5%
Power - Max 225 mW
Impedance(Max)(Zzt) 90 Ohms
Current - Reverse Leakage @ Vr 3 µA @ 1 V
Voltage - Forward (Vf) (Max) @ If 900 mV @ 10 mA
Operating Temperature -65°C ~ 150°C (TJ)
Mounting Type Surface Mount

Übersicht

Description

The BZX84C3V9LT1G is a 3.9V Zener diode from ON Semiconductor in a SOT-23 surface-mount package. It’s designed for voltage regulation, protection, and reference applications in low-power circuits.
Key Features:
- Zener Voltage (Vz): 3.9V (nominal)
- Power Dissipation: 350mW
- Tolerance: ±5%
- Low Leakage Current: <100nA (at 1V reverse bias)
- Operating Temperature: -55°C to +150°C
Applications:
- Voltage clamping
- Signal conditioning
- Overvoltage protection
- Precision voltage references
Its small size and stable performance make it ideal for portable and space-constrained electronics.

Equivalent

Equivalent products to the BZX84C3V9LT1G (3.9V, 225mW SOT-23 Zener diode) include:
- MMSZ5231B (3.9V, 500mW SOD-123)
- BZT52C3V9 (3.9V, 200mW SOD-123)
- PZM3V9NB (3.9V, 300mW SOD-323)
- 1N4729A (3.9V, 1W DO-41, axial lead)
Check voltage tolerance, power rating, and package compatibility for your application.

Features

The BZX84C3V9LT1G is a 3.9V Zener diode in a SOT-23 package, designed for voltage regulation and protection. Key features:
- Voltage Range: 3.9V nominal Zener voltage (Vz).
- Power Dissipation: 350mW.
- Tolerance: ±5% (typical).
- Current Range: 5mA (test current, Izt).
- Low Leakage Current: <0.1µA (at 1V reverse voltage).
- Operating Temperature: -55°C to +150°C.
- Small Form Factor: SOT-23 (3-pin) package.
Ideal for voltage clamping, regulation, and ESD protection in low-power circuits.

Pinout

The BZX84C3V9LT1G is a SOT-23 surface-mount 3.9V Zener diode with 3 pins (though only 2 are functional).
Pin Functions:
1. Pin 1 (Anode) – Connected to the positive terminal.
2. Pin 2 (Cathode) – Connected to the negative terminal (Zener regulation occurs here).
3. Pin 3 (No Connection, NC) – Electrically isolated (present for mechanical stability).
Key Features:
- Zener Voltage: 3.9V
- Power Dissipation: 250mW
- Package: SOT-23
Used for voltage regulation, protection, and signal clamping in low-power circuits.

Application

The BZX84C3V9LT1G is a 3.9V SMD Zener diode used for voltage regulation and protection in low-power applications. Key areas include:
- Voltage Regulation: Stabilizing voltage in circuits like power supplies.
- ESD Protection: Safeguarding sensitive ICs from electrostatic discharge.
- Signal Clipping: Limiting signal amplitudes in audio/communication circuits.
- Consumer Electronics: Used in smartphones, tablets, and IoT devices.
- Automotive: Protects low-voltage systems in infotainment or sensors.
Its small SOT-23 package makes it ideal for compact, space-constrained designs.

Package

The BZX84C3V9LT1G is a SOT-23 surface-mount package (SC-59) Zener diode. It features a 3.9V nominal voltage, 250mW power dissipation, and is designed for general-purpose voltage regulation. The compact SOT-23 package is suitable for space-constrained PCB applications.

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