Overview
The 1SMB5949BT3G is a 3.0 W plastic surface mount Zener voltage regulator diode produced by onsemi. This device is designed for general-purpose voltage regulation applications, offering a wide range of Zener voltages from 3.3 V to 200 V. It features an ESD rating of Class 3 (>16 kV) per Human Body Model, ensuring robust protection against electrostatic discharge. The device is packaged in a void-free, transfer-molded plastic case with corrosion-resistant surfaces and readily solderable leads. It is also AEC-Q101 qualified and PPAP capable, making it suitable for automotive and other applications requiring stringent reliability standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) | 100 | V |
| Zener Impedance (ZZT) | 250 | Ω |
| Maximum Steady State Power Dissipation @ TL = 75°C | 3.0 | W |
| Thermal Resistance from Junction-to-Lead (RθJL) | 40 | °C/W |
| Thermal Resistance from Junction-to-Ambient (RθJA) | 226 | °C/W |
| Operating and Storage Temperature Range | -65 to +150 | °C |
| ESD Rating | Class 3 (>16 kV) per Human Body Model | |
| Package Type | SMB-2 | |
| Lead Temperature for Soldering | 260°C for 10 seconds | |
| Flammability Rating | UL 94 V-0 |
Key Features
- Zener Voltage Range: 3.3 V to 200 V
- ESD Rating of Class 3 (>16 kV) per Human Body Model
- Flat Handling Surface for Accurate Placement
- Package Design for Top Side or Bottom Circuit Board Mounting
- AEC-Q101 Qualified and PPAP Capable
- SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements
- Pb-Free Package Available
Applications
- Voltage Regulation
- Waveform Clipping
- MOSFET Gate Protection
- General Purpose Voltage Regulation in Various End Products
- Automotive and Industrial Applications Requiring High Reliability
Q & A
- What is the Zener voltage range of the 1SMB5949BT3G?
The Zener voltage range of the 1SMB5949BT3G is from 3.3 V to 200 V, with this specific device having a Zener voltage of 100 V. - What is the ESD rating of the 1SMB5949BT3G?
The ESD rating of the 1SMB5949BT3G is Class 3 (>16 kV) per Human Body Model. - What is the maximum steady state power dissipation of the 1SMB5949BT3G?
The maximum steady state power dissipation of the 1SMB5949BT3G is 3.0 W at TL = 75°C. - What is the thermal resistance from junction-to-ambient for the 1SMB5949BT3G?
The thermal resistance from junction-to-ambient (RθJA) for the 1SMB5949BT3G is 226 °C/W. - What is the operating and storage temperature range for the 1SMB5949BT3G?
The operating and storage temperature range for the 1SMB5949BT3G is -65 to +150 °C. - Is the 1SMB5949BT3G AEC-Q101 qualified?
Yes, the 1SMB5949BT3G is AEC-Q101 qualified and PPAP capable. - What type of package does the 1SMB5949BT3G use?
The 1SMB5949BT3G uses an SMB-2 package. - What is the lead temperature for soldering the 1SMB5949BT3G?
The lead temperature for soldering the 1SMB5949BT3G is 260°C for 10 seconds. - Is the 1SMB5949BT3G Pb-Free?
Yes, the 1SMB5949BT3G is available in a Pb-Free package. - What are some common applications of the 1SMB5949BT3G?
The 1SMB5949BT3G is commonly used in voltage regulation, waveform clipping, MOSFET gate protection, and general purpose voltage regulation in various end products.
