1SMB5921BT3G

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1SMB5921BT3G

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DIODE ZENER 6.8V 3W SMB

  • Fabricanteonsemi

  • Peça do Fabricante #1SMB5921BT3G

  • Pacote SMB-2

  • Em Estoque3436

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Especificações

Atributo Valor
Package / Case Tape & Reel (TR),Cut Tape (CT),Bulk
Part Status Active
Voltage - Zener(Nom)(Vz) 6.8 V
Tolerance ±5%
Power - Max 3 W
Impedance(Max)(Zzt) 2.5 Ohms
Current - Reverse Leakage @ Vr 5 µA @ 5.2 V
Voltage - Forward (Vf) (Max) @ If 1.5 V @ 200 mA
Operating Temperature -65°C ~ 150°C
Mounting Type Surface Mount

Visão Geral

Description

The 1SMB5921BT3G is a surface-mount transient voltage suppressor (TVS) diode designed to protect sensitive electronics from voltage spikes and transients. Key features include:
- Voltage Rating: 12V (standoff) to 19.9V (breakdown).
- Peak Pulse Power: 600W (1ms pulse).
- Low Clamping Voltage: Helps limit damage to downstream components.
- Package: SMB (DO-214AA) for compact PCB mounting.
Commonly used in power supplies, automotive systems, and communication devices, it provides robust ESD and surge protection. Its fast response time (<1ns) ensures effective suppression of transient events.
For detailed specs, refer to the manufacturer’s datasheet.

Equivalent

Equivalent products to the 1SMB5921BT3G (22V Zener diode, 1.5W) include:
- BZX84C22 (22V, 350mW, SOT-23)
- MMSZ5226B (22V, 500mW, SOD-123)
- P6SMB22A (22V, 1.5W, SMB)
- SMBJ22A (22V, 1.5W, SMB)
Check voltage, power rating, and package compatibility before substitution.

Features

The 1SMB5921BT3G is a 3.0W Zener diode with the following key features:
- Voltage Range: 5.6V to 150V (selectable)
- Power Dissipation: 3.0W (at 25°C)
- Package: SMB (DO-214AA) for compact surface mounting
- Tolerance: ±5% (for tighter voltage regulation)
- Low Leakage Current: Ensures efficiency in standby modes
- High Surge Capability: Robust against transient spikes
- Operating Temperature: -65°C to +150°C
Ideal for voltage regulation, surge protection, and clamping in power supplies, automotive, and industrial applications.

Pinout

The 1SMB5921BT3G is a 3-pin Zener diode in an SMB package.
Pin Functions:
1. Anode (A): Connected to ground or the lower voltage side.
2. Cathode (K): Connected to the positive supply or higher voltage side.
3. No Connection (NC): The third pin is unused (floating).
Key Features:
- Zener Voltage (Vz): 18V (typical).
- Power Dissipation: 3W.
- Used for voltage regulation and overvoltage protection.
Package: SMB (DO-214AA).

Manufacturer

The 1SMB5921BT3G is manufactured by ON Semiconductor, now known as onsemi after rebranding in 2021.
onsemi is a global semiconductor company specializing in power management, analog, and sensor solutions for automotive, industrial, and consumer markets. Known for high-reliability components, it serves industries requiring efficient energy solutions.
The 1SMB5921BT3G is a transient voltage suppressor (TVS) diode, designed to protect circuits from voltage spikes.

Application

The 1SMB5921BT3G is a Zener diode primarily used for voltage regulation and protection in various electronic circuits. Key application areas include:
- Power Supplies: Stabilizing voltage outputs.
- Consumer Electronics: Protecting sensitive components from voltage spikes.
- Automotive Systems: Safeguarding circuits from transients.
- Industrial Equipment: Ensuring stable voltage in control systems.
- Telecommunications: Surge protection in communication devices.
Its high power dissipation (3W) and precise voltage regulation make it suitable for robust and reliable circuit protection.

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