Overview
The CM1213A-01SO, produced by onsemi, is a 1-channel low capacitance ESD (Electrostatic Discharge) protection array. This device is designed to provide ESD protection for electronic components or subsystems that require minimal capacitive loading. It is particularly suitable for systems with high data and clock rates or circuits that demand low capacitive loading. The CM1213A-01SO features a pair of diodes in series that steer positive or negative ESD current pulses to either the positive (VP) or negative (VN) supply rail, and includes a Zener diode to protect the VCC rail against ESD strikes and eliminate the need for a bypass capacitor.
Key Specifications
| Parameter | Rating | Units |
|---|---|---|
| Operating Supply Voltage (VP - VN) | 5.5 | V |
| Operating Temperature Range | -40 to +150 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| DC Voltage at any channel input | (VN - 0.5) to (VP + 0.5) | V |
| Package Power Rating | 225 mW | mW |
| ESD Protection (IEC 61000-4-2 Contact) | ±12 kV | kV |
| Input Channel Capacitance | 0.85 pF Typical | pF |
| Package Type | SOT23-3 |
Key Features
- One channel of ESD protection
- Provides ESD protection to IEC61000-4-2 Level 4, ±12 kV contact discharge
- Low channel input capacitance of 0.85 pF typical
- Minimal capacitance change with temperature and voltage
- Channel input capacitance matching of 0.02 pF typical, ideal for differential signals
- Each I/O pin can withstand over 1000 ESD strikes
- Pb-free, halogen-free/BFR-free, and RoHS compliant
- SZ prefix available for automotive and other applications requiring unique site and control change requirements; AEC-Q101 qualified and PPAP capable
Applications
- USB 2.0 ports at 480 Mbps in desktop PCs, notebooks, and peripherals
- IEEE 1394 Firewire ports at 400 Mbps/800 Mbps
- DVI and HDMI ports in notebooks, set-top boxes, digital TVs, and LCD displays
- Serial ATA ports in desktop PCs and hard disk drives
- PCI Express ports
- General-purpose high-speed data line ESD protection
Q & A
- What is the primary function of the CM1213A-01SO? The CM1213A-01SO is designed to provide ESD protection for electronic components or subsystems requiring minimal capacitive loading.
- What is the maximum ESD protection level of the CM1213A-01SO? The CM1213A-01SO provides ESD protection up to ±12 kV per the IEC 61000-4-2 standard.
- What is the typical input channel capacitance of the CM1213A-01SO? The typical input channel capacitance is 0.85 pF.
- What are the operating temperature and storage temperature ranges for the CM1213A-01SO? The operating temperature range is -40 to +150°C, and the storage temperature range is -65 to +150°C.
- Is the CM1213A-01SO RoHS compliant? Yes, the CM1213A-01SO is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What types of applications is the CM1213A-01SO suitable for? It is suitable for USB 2.0, IEEE 1394 Firewire, DVI, HDMI, Serial ATA, and PCI Express ports, among other high-speed data line applications.
- How many ESD strikes can each I/O pin withstand? Each I/O pin can withstand over 1000 ESD strikes.
- What package type is the CM1213A-01SO available in? The CM1213A-01SO is available in the SOT23-3 package.
- Is the CM1213A-01SO qualified for automotive applications? Yes, the SZ prefix version is AEC-Q101 qualified and PPAP capable for automotive and other specific applications.
- What is the significance of the Zener diode in the CM1213A-01SO? The Zener diode protects the VCC rail against ESD strikes and eliminates the need for a bypass capacitor.
