Overview
The CM1213A-02SR, produced by onsemi, is a member of the CM1213A family of diode arrays designed to provide ESD (Electrostatic Discharge) protection for electronic components or subsystems that require minimal capacitive loading. These devices are particularly suited for protecting high-speed ports and circuits that demand low capacitive loading, such as USB 2.0, IEEE1394 Firewire, Serial ATA, DVI, and HDMI ports. The CM1213A-02SR features a pair of diodes in series for each ESD channel, steering positive or negative ESD current pulses to either the positive (VP) or negative (VN) supply rail, and includes an embedded Zener diode for additional protection and to 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 (SOT143-4) | 225 | mW |
| ESD Protection (IEC 61000-4-2 Contact) | ±12 kV | kV |
| Channel Input Capacitance | 0.85 pF (Typical) | pF |
| Channel Input Capacitance Matching | 0.02 pF (Typical) | pF |
| Operating Supply Current | 8.0 µA | µA |
| Channel Leakage Current | 1.0 µA (Typical) | µA |
Key Features
- One, Two, and Four Channels of ESD Protection (CM1213A-02SR is a 2-channel device)
- 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
- SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q101 Qualified and PPAP Capable
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
- USB 2.0 Ports at 480 Mbps in Desktop PCs, Notebooks, and Peripherals
- IEEE1394 Firewire Ports at 400 Mbps/800 Mbps
- DVI Ports, HDMI Ports in Notebooks, Set Top Boxes, Digital TVs, LCD Displays
- Serial ATA Ports in Desktop PCs and Hard Disk Drives
- Removable storage, digital camcorders, DVD-RW drives, and other high-speed data ports
Q & A
- What is the primary function of the CM1213A-02SR?
The CM1213A-02SR is designed to provide ESD protection for electronic components or subsystems requiring minimal capacitive loading. - What are the key applications of the CM1213A-02SR?
Key applications include USB 2.0, IEEE1394 Firewire, Serial ATA, DVI, and HDMI ports in various devices. - What is the ESD protection level of the CM1213A-02SR?
The CM1213A-02SR provides ESD protection up to ±12 kV per the IEC 61000-4-2 standard. - What is the typical channel input capacitance of the CM1213A-02SR?
The typical channel input capacitance is 0.85 pF. - Is the CM1213A-02SR RoHS compliant?
Yes, the CM1213A-02SR is Pb-Free, Halogen Free/BFR Free, and RoHS compliant. - What is the operating temperature range of the CM1213A-02SR?
The operating temperature range is -40 to +150°C. - How many ESD strikes can each I/O pin withstand?
Each I/O pin can withstand over 1000 ESD strikes. - What is the purpose of the embedded Zener diode in the CM1213A-02SR?
The embedded Zener diode protects the VCC rail against ESD strikes and eliminates the need for a bypass capacitor. - What package types are available for the CM1213A-02SR?
The CM1213A-02SR is available in SOT143-4 and SC-74 packages. - Is the CM1213A-02SR suitable for automotive applications?
Yes, the SZ prefix version is AEC-Q101 Qualified and PPAP Capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
