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Updated at 16/06/2025 10:30:15(UTC+8)

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Description

The EMI2121MTTAG is a single pair common mode filter with ESD protection in 8 pin WDFN package. This is an integrated common mode filter providing both ESD protection and EMI filtering for high speed serial digital interfaces such as USB2.0. The EMI2121 provides EMI filtering for one differential data line pair and ESD protection for one data pair plus a supply input such as USB2.0 Vbus or USB ID pin. This is highly integrated common mode filter (CMF) with ESD protection provides protection and EMI reduction for systems using high speed serial data lines with cost and space savings over discrete solutions. It is used in USB2.0 and other high speed differential data lines in mobile phones, digital still cameras and automotive interfaces.
Large differential mode bandwidth with cut-off frequency > 2GHz
High common mode stop band attenuation is >25dB at 700MHz, >30dB at 800MHz (typ)
Provides ESD protection to IEC61000-4-2 level 4, ±12KV contact discharge
Low channel input capacitance provides superior impedance matching performance

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EMI2121MTTAG Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	WDFN-8
Operating Voltage	5 V
Capacitance	1.3 pF
Halogen Free Status	Halogen Free
Breakdown Voltage	5.5 V
Number of Positions	8 Position
Clamping Voltage	16 V
DC Resistance (DCR)	8 Ω
Current Rating (Max)	100 mA
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
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Size-Length	2.2 mm
Size-Width	2 mm
Size-Height	0.8 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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