Product Overview
The CM1418 Praetorian is an L-C EMI filter array with integrated ESD protection, designed specifically for headset speakers. It features two Pi-filters (C-L-C) with component values of 117 pF/3.0 nH/117 pF. The device offers a high level of protection against electrostatic discharge (ESD) with diodes capable of dissipating strikes up to 30 kV (IEC61000-4-2 contact discharge and MIL-STD-883 HBM). Its small package and easy pin assignments make it ideal for portable electronics such as mobile handsets, PDAs, and notebook computers. The CM1418 is particularly suited for EMI filtering and ESD protection of speaker output lines in mobile handsets, featuring a low-resistance inductor (< 0.35 ) to maximize power output. It includes OptiGuard coating for enhanced assembly reliability and is housed in a space-saving, low-profile Chip Scale Package (CSP) with RoHS-compliant, lead-free finishing.
Product Attributes
- Brand: Praetorian (onsemi)
- ESD Protection: 30 kV (IEC 61000-4-2, Contact Discharge)
- ESD Protection: 30 kV (HBM)
- Coating: OptiGuard for Improved Reliability at Assembly
- Material: Pb-Free and RoHS Compliant
- Package Type: Chip Scale Package (CSP)
- Package Dimensions: 1.720 mm x 1.220 mm
- Filter Type: L-C EMI Filter with ESD Protection
- Filter Configuration: Two Pi-filters (C-L-C)
- Component Values: 117 pF / 3.0 nH / 117 pF
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Inductance (L) | 3.0 | nH | |||
| DC Channel Resistance (R) | 0.28 | 0.35 | |||
| Total Channel Capacitance (CTOT) | 2.5 V DC, 1 MHz, 30 mV AC | 187 | 234 | 281 | pF |
| Capacitance (C1) | 2.5 V DC, 1 MHz, 30 mV AC | 93 | 117 | 140 | pF |
| Stand-off Voltage (VST) | I = 10 A | 6.0 | V | ||
| Diode Leakage Current (ILEAK) | VIN = 3.3 V | 0.1 | 1.0 | A | |
| Signal Clamp Voltage (Positive Clamp) | ILOAD = 10 mA | 5.6 | 6.8 | V | |
| Signal Clamp Voltage (Negative Clamp) | ILOAD = -10 mA | -9.0 | -5.6 | V | |
| In-system ESD Withstand Voltage (VESD) - Human Body Model | MIL-STD-883, Method 3015 | 30 | kV | ||
| In-system ESD Withstand Voltage (VESD) - Contact Discharge | IEC 61000-4-2 Level 4 | 30 | kV | ||
| Dynamic Resistance (RDYN) - Positive | 0.95 | ||||
| Dynamic Resistance (RDYN) - Negative | 0.90 | ||||
| Cut-off Frequency (fC) | ZSOURCE = 50 , ZLOAD = 50 , L = 3 nH, C = 117 pF | 22 | MHz | ||
| Storage Temperature Range | -65 | +150 | C | ||
| Operating Temperature Range | -40 | +85 | C | ||
| DC Current per Inductor | 500 | mA | |||
| DC Package Power Rating | 0.5 | W |
Applications
- Headset Speaker Port in Mobile Handsets
- I/O Port Protection for Mobile Handsets, Notebook Computers, PDAs
- EMI Filtering for Data Ports in Cell Phones, PDAs, or Notebook Computers
2411041603_onsemi-CM1418-02CP_C20535307.pdf
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