onsemi

1SMB5921BT3

1SMB5921BT3 Description

The 1SMB5921BT3 is a high-performance single Zener diode manufactured by onsemi, designed to provide reliable voltage regulation in various electronic circuits. With a nominal Zener voltage of 6.8V and a maximum power dissipation of 3W, this diode is well-suited for applications requiring precise voltage reference and protection. The 1SMB5921BT3 features a surface-mount packaging, making it ideal for space-constrained designs and high-density PCB layouts.

1SMB5921BT3 Features

• Voltage - Zener (Nom) (Vz): 6.8V
• Power - Max: 3W
• Voltage - Forward (Vf) (Max) @ If: 1.5V @ 200mA
• Current - Reverse Leakage @ Vr: 5 µA @ 5.2V
• Impedance (Max) (Zzt): 2.5 Ohms
• Tolerance: ±5%
• Mounting Type: Surface Mount
• Supplier Device Package: SMB
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

1SMB5921BT3 Applications

The 1SMB5921BT3's unique combination of high Zener voltage, low forward voltage, and robust power handling capabilities make it an ideal choice for a variety of applications, including:

1. Voltage Regulation: Due to its precise Zener voltage and low forward voltage, the 1SMB5921BT3 is well-suited for voltage regulation circuits, ensuring stable and reliable power supply to sensitive electronic components.

2. Overvoltage Protection: The 1SMB5921BT3 can be used as a protective element in circuits exposed to transient voltage spikes, safeguarding sensitive components from damage.

3. Precision Reference: The low tolerance and high stability of the 1SMB5921BT3 make it an excellent choice for precision reference circuits, where accurate voltage levels are critical.

4. Power Conditioning: In power conditioning applications, the 1SMB5921BT3 can help maintain consistent voltage levels across various loads, improving overall system performance and reliability.

Conclusion of 1SMB5921BT3

The 1SMB5921BT3 from onsemi is a versatile and reliable single Zener diode, offering a combination of high Zener voltage, low forward voltage, and robust power handling capabilities. Its surface-mount packaging and precise voltage regulation make it an ideal choice for a wide range of applications, including voltage regulation, overvoltage protection, precision reference, and power conditioning. Despite being classified as obsolete, the 1SMB5921BT3 remains a popular choice for engineers seeking a high-performance Zener diode solution.