Overview
The MMQA27VT1G is a quad monolithic silicon voltage suppressor designed by onsemi for applications requiring transient overvoltage protection. This component is part of the MMQA and SZMMQA Quad Common Anode Series and is housed in a compact SC-74 package. It is ideal for protecting four separate lines against overvoltage and ESD (Electrostatic Discharge) using a single package, making it particularly useful in space-constrained designs. The device is suitable for use in various electronic equipment, including computers, printers, communication systems, medical devices, and other voltage and ESD sensitive applications.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Breakdown Voltage | VZ | 25.7 - 27 - 28.4 | V |
| Reverse Leakage Current | IR | 75 nA | nA |
| Peak Power Dissipation @ 1.0 ms | Ppk | 24 W | W |
| Peak Power Dissipation @ 20 μs | Ppk | 150 W | W |
| Total Power Dissipation on FR-5 Board @ TA = 25°C | PD | 225 mW | mW |
| Thermal Resistance from Junction-to-Ambient | RJA | 556 °C/W | °C/W |
| Junction and Storage Temperature Range | TJ, Tstg | -55 to +150 °C | °C |
| Lead Solder Temperature - Maximum (10 Second Duration) | TL | 260 °C | °C |
| ESD Rating | - | Class 3B (exceeding 16 kV) per the Human Body Model | - |
Key Features
- SC-74 package allows four separate unidirectional configurations, optimizing board space.
- Peak power dissipation of 24 W @ 1.0 ms and 150 W @ 20 μs.
- Low leakage current of less than 2.0 μA.
- ESD rating of Class 3B, exceeding 16 kV per the Human Body Model.
- SZ prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q101 qualified and PPAP capable.
- Pb-free and RoHS compliant.
Applications
The MMQA27VT1G is designed for use in various applications that require transient overvoltage protection, including:
- Computers and peripherals.
- Printers and business machines.
- Communication systems.
- Medical equipment.
- Automotive systems (with SZ prefix).
It is particularly useful in scenarios where board space is limited, such as in compact electronic designs.
Q & A
- What is the MMQA27VT1G used for?
The MMQA27VT1G is used for transient overvoltage protection in electronic equipment.
- What package type does the MMQA27VT1G use?
The MMQA27VT1G is housed in an SC-74 package.
- What is the peak power dissipation of the MMQA27VT1G?
The peak power dissipation is 24 W @ 1.0 ms and 150 W @ 20 μs.
- What is the ESD rating of the MMQA27VT1G?
The ESD rating is Class 3B, exceeding 16 kV per the Human Body Model.
- Is the MMQA27VT1G Pb-free and RoHS compliant?
- What are the typical applications of the MMQA27VT1G?
Typical applications include computers, printers, communication systems, medical equipment, and automotive systems.
- What is the junction and storage temperature range of the MMQA27VT1G?
The junction and storage temperature range is -55 to +150 °C.
- What is the lead solder temperature maximum for the MMQA27VT1G?
The lead solder temperature maximum is 260 °C for a 10-second duration.
- Is the MMQA27VT1G AEC-Q101 qualified?
- How many devices are typically shipped per reel?
The devices are typically shipped in reels of 3,000 units.
