Overview
The onsemi MMBZ27VALT1G is a 40W, 27V bi-directional surface mount Zener Transient Voltage Suppressor (TVS) diode. This component is part of the MMBZ series, designed to provide transient overvoltage protection in various electronic systems. It is packaged in a SOT-23 (SC-59, TO-236) case, making it suitable for applications where board space is limited.
The MMBZ27VALT1G is ideal for protecting voltage and ESD sensitive equipment such as computers, printers, business machines, communication systems, and medical devices. Its dual junction common anode design allows it to protect two separate lines using a single package, enhancing its utility in compact designs.
Key Specifications
| Attribute | Description |
|---|---|
| Breakdown Voltage (Min) | 25.65V |
| Breakdown Voltage (Max) | 28.35V |
| Clamping Voltage (Max) | 40V |
| Directional | Uni-Directional/Bi-Directional |
| Power Dissipation | 40W |
| Maximum Forward Impulse Current | 1A |
| Reverse Stand-Off Voltage (Vrwm) | 22V |
| Leakage Current | 50nA |
| Package Style | SOT-23 (SC-59, TO-236) |
| Mounting Method | Surface Mount |
| Tolerance | ±5% |
Key Features
- Dual Junction Common Anode Design: Allows protection of two separate lines using a single package, optimizing board space.
- High Peak Pulse Power Dissipation: Up to 40W, providing robust protection against transient overvoltages.
- Low Leakage Current: 50nA, minimizing the impact on the protected circuit.
- ESD Rating: Compliant with IEC61000-4-2 Level 4, ±30 kV Contact Discharge, ensuring high ESD protection.
- Compact SOT-23 Package: Suitable for applications where space is limited.
- Bi-Directional Capability: Can be configured as either uni-directional or bi-directional, offering flexibility in design.
Applications
- Computers and Peripherals: Protects against transient overvoltages in computer systems, printers, and other business machines.
- Communication Systems: Used in telecommunication equipment to safeguard against voltage spikes and ESD.
- Medical Equipment: Provides critical protection in medical devices where reliability and safety are paramount.
- Automotive Electronics: Suitable for use in automotive systems that require robust transient voltage suppression.
- Industrial Control Systems: Protects industrial control equipment from transient overvoltages and ESD.
Q & A
- What is the breakdown voltage range of the MMBZ27VALT1G?
The breakdown voltage range is between 25.65V and 28.35V.
- What is the maximum clamping voltage of the MMBZ27VALT1G?
The maximum clamping voltage is 40V.
- What is the peak pulse power dissipation of the MMBZ27VALT1G?
The peak pulse power dissipation is 40W.
- What package style does the MMBZ27VALT1G use?
The component is packaged in a SOT-23 (SC-59, TO-236) case.
- Is the MMBZ27VALT1G bi-directional?
Yes, it can be configured as either uni-directional or bi-directional.
- What is the maximum forward impulse current of the MMBZ27VALT1G?
The maximum forward impulse current is 1A.
- What is the reverse stand-off voltage (Vrwm) of the MMBZ27VALT1G?
The reverse stand-off voltage (Vrwm) is 22V.
- What is the leakage current of the MMBZ27VALT1G?
The leakage current is 50nA.
- What are some common applications of the MMBZ27VALT1G?
Common applications include computers, communication systems, medical equipment, and industrial control systems.
- Does the MMBZ27VALT1G meet ESD standards?
Yes, it is compliant with IEC61000-4-2 Level 4, ±30 kV Contact Discharge.
