Overview
The 1SMB5927BT3 is a 3 Watt Plastic Surface Mount Silicon Zener Diode produced by onsemi (formerly Motorola). This device is part of a comprehensive line of Zener diodes that offer a wide range of voltage options from 3.3 to 200 volts. The 1SMB5927BT3 is specifically designed to provide a nominal Zener voltage of 12 volts, making it suitable for various voltage regulation and protection applications in electronic circuits.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Nominal Zener Voltage | VZ @ IZT | 12 | Volts |
| Test Current | IZT | 31.2 | mA |
| Maximum Zener Impedance | ZZT @ IZT | 6.5 | Ohms |
| Maximum Reverse Leakage Current | IR | 1 | µA |
| Maximum DC Zener Current | IZM | 550 | mAdc |
| DC Power Dissipation @ TL = 75°C | PD | 3 | Watts |
| Operating and Storage Junction Temperature Range | TJ, Tstg | –65 to +150 | °C |
| Package | Void-free, transfer-molded plastic | ||
| Mounting Position | Any | ||
| Weight | Modified L-Bend providing more contact area to bond pad |
Key Features
- Wide Voltage Range: The 1SMB5927BT3 offers a nominal Zener voltage of 12 volts, part of a series that spans from 3.3 to 200 volts.
- High Power Dissipation: Capable of dissipating up to 3 watts of DC power.
- Surface Mount Package: Designed for surface mount applications with a void-free, transfer-molded plastic case.
- Corrosion Resistant: All external surfaces are corrosion resistant with readily solderable leads.
- Flexible Mounting: Can be mounted in any position on the circuit board.
- Tape and Reel Availability: Available in tape and reel packaging for automated assembly.
Applications
- Voltage Regulation: Used in voltage regulation circuits to maintain a stable voltage level.
- Overvoltage Protection: Acts as a protective device against voltage spikes and overvoltages in electronic circuits.
- Signal Clamping: Can be used to clamp signal voltages to a specified level.
- Power Supplies: Often used in power supply circuits to regulate output voltages.
- Automotive and Industrial Electronics: Suitable for use in automotive and industrial electronic systems due to its robust specifications.
Q & A
- What is the nominal Zener voltage of the 1SMB5927BT3?
The nominal Zener voltage of the 1SMB5927BT3 is 12 volts.
- What is the maximum DC power dissipation of the 1SMB5927BT3?
The maximum DC power dissipation is 3 watts at a junction temperature of 75°C.
- What is the operating temperature range of the 1SMB5927BT3?
The operating and storage junction temperature range is –65°C to +150°C.
- What type of package does the 1SMB5927BT3 come in?
The device comes in a void-free, transfer-molded plastic surface mount package.
- Is the 1SMB5927BT3 available in tape and reel packaging?
- What is the maximum reverse leakage current of the 1SMB5927BT3?
The maximum reverse leakage current is 1 µA.
- What is the maximum Zener impedance of the 1SMB5927BT3?
The maximum Zener impedance (ZZT) is 6.5 ohms.
- How is the polarity of the 1SMB5927BT3 indicated?
The polarity is indicated by a molded polarity notch; the cathode is positive with respect to the anode when operated in Zener mode.
- What are some common applications of the 1SMB5927BT3?
Common applications include voltage regulation, overvoltage protection, signal clamping, and use in power supplies and automotive/industrial electronics.
- What is the maximum case temperature for soldering purposes?
The maximum case temperature for soldering purposes is 260°C for 10 seconds.
