Product Overview

The EMI9408 is an inductor-based (L-C) EMI filter array with integrated ESD protection, designed for high-speed data lines. It features eight channels of Pi-style (C-L-C) filters, each with component values of 1.8 pF35 nH4.7 pF35 nH6 pF. The device offers a cut-off frequency of 300MHz and supports data rates up to 160 Mbps, providing over -35 dB attenuation from 800 MHz to 2.7 GHz. Integrated ESD diodes on each I/O pin offer 14 kV ESD protection, exceeding IEC61000-4-2 Level 4 requirements. Its compact uDFN package makes it ideal for space-constrained applications such as wireless handsets, mobile LCD modules, PDAs, and specifically for EMI filtering and protection of data and control lines for LCD displays and cameras in mobile handsets. The device is Pb-Free and RoHS compliant.

Product Attributes

• Brand: PRAETORIAN
• Manufacturer: Semiconductor Components Industries, LLC (SCILLC)
• Package Type: uDFN (Pb-Free)
• RoHS Compliant: Yes

Technical Specifications

Specification	Value	Unit	Conditions
Model	EMI9408
Number of Channels	8
Filter Network Type	Pi-Style (C-L-C)
Component Values per Channel	1.8 pF35 nH4.7 pF35 nH6 pF
Cut-off Frequency (3dB Attenuation)	300	MHz
Maximum Data Rate	160	Mbps
Attenuation	> -35	dB	800 MHz to 2.7 GHz
ESD Protection (External Pins)	14	kV	IEC 61000-4-2 Level 4, Contact Discharge
ESD Protection (Internal Pins)	2	kV	IEC 61000-4-2 Level 4, Contact Discharge
ESD Protection (External Pins, Air Discharge)	16	kV	IEC 61000-4-2 Level 4
Package Type	uDFN		16-lead
Package Dimensions	3.30 mm x 1.35 mm
Lead Pitch	0.40	mm
Operating Temperature Range	-40 to +85	C
Storage Temperature Range	-65 to +150	C
Current per Inductor (Max)	15	mA
Package Power Rating (Max)	500	mW
Total Channel Inductance (Typ)	70	nH
Total Channel DC Resistance (Typ)	45
Total Channel Capacitance (Typ, 0V bias)	17.5 - 24	pF	1 MHz, 30 mVrms
Total Channel Capacitance (Typ, 2.5V bias)	11.5	pF	1 MHz, 30 mVrms
Stand-off Voltage (Typ)	5.5	V	I = 10 A
Diode Leakage Current (Max)	0.5	A	VIN = +3.3 V
Signal Clamp Voltage (Positive, Typ)	6.8	V	ILOAD = 10 mA
Signal Clamp Voltage (Negative, Typ)	-0.8	V	ILOAD = -10 mA
Clamping Voltage (TLP, Typ)	13.7	V	IPP = 8 A
Clamping Voltage (TLP, Typ)	20	V	IPP = 16 A
Clamping Voltage (TLP, Typ)	-4.4	V	IPP = -8 A
Clamping Voltage (TLP, Typ)	-7.6	V	IPP = -16 A
Cut-off Frequency (fC)	345	MHz	ZSOURCE = 50 , ZLOAD = 50