EMIF01-5250SC5 Datasheet, PDF (1/5 Pages) STMicroelectronics – EMI FILTER WITH ESD PROTECTION

®
Application Specific Discretes
A.S.D.^TM
EMIF01-5250SC5
EMI FILTER
WITH ESD PROTECTION
MAIN APPLICATIONS
Where EMI filtering in ESD sensitive equipment is
required :
Mobile phone : handsets and accessories
RF communications
DESCRIPTION
The EMIF01-5250SC5 is a highly integrated T-filter
designed to suppress EMI / RFI noise on I/O ports
of mobile phones or RF communication
equipment.
This filter includes ESD protection circuitry which
prevents device destruction when subjected to
ESD discharges.
The comprehensive layout of the
EMIF01-5250SC5 filter allows design flexibility on
high density boards.
SOT23-5L (SC-59A)
FUNCTIONAL DIAGRAM
FEATURES
T-filtering functions for 2 wires.
ESD protection of 15 kV (air discharge) per
IEC1000-4-2
Breakdown voltage : VBR = 6 V min.
Low leakage current < 1 µA.
BENEFITS
EMI / RFI noise suppression.
Enhanced ESD protection : IEC1000-4-2 level 4
One of the smallest protection circuits available
High flexibility in the design of high density
boards
COMPLIES WITH THE FOLLOWING STANDARDS
IEC 1000-4-2 15kV (air discharge)
8 kV (contact discharge)
1
D
2
D
3
R
Cz
Cz
R
R
C Cz
C Cz
R
4
D
D
5
R = 52 Ω tolerance ± 15%
C = 50 pF tolerance ± 15%
D = Zener diode
Cz = Capacitance of the zener diode
October 1998 - Ed: 5A
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