Overview
The CM1213-08MR, produced by onsemi, is a part of the CM1213 family of low capacitance ESD (Electrostatic Discharge) protection arrays. This device is designed to provide robust ESD protection for electronic components and subsystems that require minimal capacitive loading. It is particularly suited for high-speed ports and applications where low capacitance is crucial. The CM1213-08MR offers 8 channels of ESD protection and is available in an MSOP-10 package, which is Pb-free and RoHS compliant.
Key Specifications
| Parameter | Rating | Units |
|---|---|---|
| Operating Supply Voltage (VP - VN) | 6.0 | V |
| Operating Temperature Range | -40 to +85 | °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 (MSOP-10) | 400 | mW |
| Operating Supply Current (VP - VN = 3.3 V) | 8.0 | μA |
| Diode Forward Voltage (Top/Bottom Diode) | 0.60 / 0.60 | V |
| Channel Input Capacitance | 1.0 | pF |
| Channel Input Capacitance Matching | 0.02 | pF |
| Mutual Capacitance between signal pin and adjacent signal pin | 0.11 | pF |
| ESD Protection (Peak Discharge Voltage) | ±8 kV | kV |
| Channel Clamp Voltage (Positive/Negative Transients) | +8.8 / -1.4 | V |
Key Features
- 6 or 8 channels of ESD protection
- Provides ESD protection to IEC 61000-4-2 Level 4
- ±8 kV contact discharge protection
- Low channel input capacitance of 1.0 pF typical
- Minimal capacitance change with temperature and voltage
- Channel input capacitance matching of 0.02 pF typical, ideal for differential signals
- Mutual capacitance between signal pin and adjacent signal pin of 0.11 pF typical
- Zener diode protects supply rail and eliminates the need for external bypass capacitors
- Each I/O pin can withstand over 1000 ESD strikes
- Available in SOIC and MSOP packages
- Pb-free and RoHS compliant
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
- Handheld PCs/PDAs
Q & A
- What is the CM1213-08MR used for?
The CM1213-08MR is used to provide ESD protection for electronic components and subsystems, particularly in high-speed applications.
- How many channels of ESD protection does the CM1213-08MR offer?
The CM1213-08MR offers 8 channels of ESD protection.
- What is the maximum ESD protection voltage for the CM1213-08MR?
The CM1213-08MR provides ESD protection up to ±8 kV per the IEC 61000-4-2 standard.
- What is the typical channel input capacitance of the CM1213-08MR?
The typical channel input capacitance is 1.0 pF.
- Does the CM1213-08MR require external bypass capacitors?
No, the CM1213-08MR has an integrated Zener diode that eliminates the need for external bypass capacitors.
- How many ESD strikes can each I/O pin withstand?
Each I/O pin can withstand over 1000 ESD strikes.
- In what packages is the CM1213-08MR available?
The CM1213-08MR is available in MSOP-10 and SOIC-8 packages.
- Is the CM1213-08MR Pb-free and RoHS compliant?
- What are some common applications for the CM1213-08MR?
- How should the CM1213-08MR be placed on a PCB to maximize ESD protection?
The CM1213-08MR should be located as close as possible to the point of entry of expected electrostatic discharges, with minimal PCB trace lengths to the power supply, ground planes, and between the signal input and the ESD device.
