Overview
The SZMMBZ33VALT1G is a dual monolithic silicon Zener diode produced by onsemi, designed for applications requiring transient overvoltage protection capability. These devices are intended for use in voltage and ESD sensitive equipment such as computers, printers, business machines, communication systems, and medical equipment. The dual junction common anode design allows for the protection of two separate lines using only one package, making them ideal for situations where board space is limited.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Working Peak Reverse Voltage (VRWM) | 26 | V |
| Breakdown Voltage (VBR) | 31.35 - 34.65 | V |
| Peak Power Dissipation @ 1.0 ms | 40 | W |
| Maximum Reverse Leakage Current (IR) | 50 | nA |
| Clamping Voltage @ Peak Pulse Current (VC) | 46 | V |
| ESD Rating | Class 3B (> 16 kV) per Human Body Model, Class C (> 400 V) per Machine Model | - |
| Maximum Junction Temperature | -55 to +150 | °C |
| Lead Solder Temperature | 260 | °C (10 seconds) |
| Package Type | SOT-23 (TO-236) | - |
| Flammability Rating | UL 94 V-0 | - |
Key Features
- SOT-23 package allowing either two separate unidirectional configurations or a single bidirectional configuration.
- Standard Zener breakdown voltage range from 5.6 V to 47 V.
- Peak power dissipation of 24 or 40 W @ 1.0 ms (unidirectional).
- ESD rating exceeding 16 kV per the Human Body Model and 400 V per the Machine Model.
- Maximum clamping voltage at peak pulse current.
- Low leakage current of less than 5.0 µA.
- Flammability rating of UL 94 V-0.
- Pb-free and RoHS compliant.
- AEC-Q101 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements.
Applications
- Voltage regulation.
- Waveform clipping.
- MOSFET gate protection.
- General usage in various end products such as computers, printers, business machines, communication systems, and medical equipment.
Q & A
- What is the primary function of the SZMMBZ33VALT1G Zener diode?
The primary function is to provide transient overvoltage protection in voltage and ESD sensitive equipment.
- What is the package type of the SZMMBZ33VALT1G?
The package type is SOT-23 (TO-236).
- What is the peak power dissipation of the SZMMBZ33VALT1G?
The peak power dissipation is 40 W @ 1.0 ms (unidirectional).
- What are the ESD ratings for the SZMMBZ33VALT1G?
The ESD ratings are Class 3B (> 16 kV) per the Human Body Model and Class C (> 400 V) per the Machine Model.
- Is the SZMMBZ33VALT1G Pb-free and RoHS compliant?
- What is the maximum junction temperature for the SZMMBZ33VALT1G?
The maximum junction temperature is -55 to +150°C.
- What are some common applications for the SZMMBZ33VALT1G?
- Is the SZMMBZ33VALT1G suitable for automotive applications?
- What is the flammability rating of the SZMMBZ33VALT1G?
The flammability rating is UL 94 V-0.
- Can the SZMMBZ33VALT1G be configured in both unidirectional and bidirectional modes?
