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SMP100LC-270 Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer SMP100LC-270
Beschreibung TELECOM EQUIPMENT PROTECTION: TRISIL
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 8 Seiten
SMP100LC-270 Datasheet, Funktion
® SMP100LC-xxx
TRISILTM FOR HIGH DEBIT RATE
TELECOM LINES PROTECTION
PRELIMINARY DATASHEET
FEATURES
n Bidirectional crowbar protection
n Low capacitance : C = 30 PF TYP @ 50V
n Low leakage current : IR = 2 µA MAX
n Repetitive peak pulse current :
IPP = 100 A (10/1000µS)
n Holding current: IH = 150 mA
MAIN APPLICATIONS
Any sensitive equipment requiring protection
against lightning strikes and power crossing:
n Analog and digital line cards
(xDSL, T1/ E1, ISDN...)
n Gas tube replacement
n Terminals and transmission equipment
SMB
DESCRIPTION
The SMP100LC-xxx series is a very low
capacitance transient surge arrestor designed
for the protection of high debit rate
communication equipment. Its low capacitance
avoid any distorsion of the signal. It can also
SCHEMATIC DIAGRAM
BENEFITS
n No ageing and no noise
n Short circuit in failure mode, thus still ensuring
protection
n Board space saving
March 2000 - Ed: 3B
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SMP100LC-270 Datasheet, Funktion
SMP100LC-xxx
TEST CIRCUIT 2 FOR IBO and VBO parameters :
Auto
Tr ans for m er
220V/2A
tp = 20ms
static
relay.
R1
140
R2
240
Vout
K
IBO
measure
D.U.T
V BO
measure
Transformer
220V/800V
5A
TEST PROCEDURE :
Pulse Test duration (tp = 20ms):
- For Bidirectional devices = Switch K is closed
- For Unidirectional devices = Switch K is open.
VOUT Selection
- Device with VBO < 200 Volt
- VOUT = 250 VRMS, R1 = 140 .
- Device with VBO 200 Volt
- VOUT = 480 VRMS, R2 = 240 .
TEST CIRCUITS 3 FOR VBO DYNAMIC PARAMETERS
100 V / µs, di/dt < 10 A / µs, Ipp = 100 A
2
U 10 µF
45
66
470
83
0.36 nF
46 µH
KeyTek ’System 2’ generator with PN246I module
1 kV / µs, di/dt < 10 A / µs, Ipp = 10 A
26 µH
250
47
46 µH
U 60 µF 12
KeyTek ’System 2’ generator with PN246I module
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