THDT6511D Datasheet, PDF (1/6 Pages) STMicroelectronics – TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION

THDT6511D
Application Specific Discretes
A.S.D.™
TRANSIENT VOLTAGE SUPPRESSOR
FOR SLIC PROTECTION
FEATURES
DUAL ASYMETRICAL TRANSIENT SUPPRESSOR
PEAK PULSE CURRENT : IPP = 40A, 10/100µs
HOLDING CURRENT : 150 mA min.
BREAKDOWN VOLTAGE : 65 V min.
LOW DYNAMIC CHARACTERISTICS
STAND CCITT K20 AND LSSGR
PRELIMINARY DATASHEET
DESCRIPTION
This device has been especially designed to
protect subscriber line cards against overvoltage.
Two diodes clamp positive overloads while
negative surges are suppressed by two protection
thyristors.
A particular attention has beengiven to the internal
wire bonding. The ”4-point” configuration ensures
a reliable protection, eliminating overvoltages
introduced by the parasitic inductances of the
wiring (Ldi/dt), especially for very fast transient
overvoltages.
COMPLIESWITHTHE FOLLOWINGSTANDARDS :
CCITT K20 :
10/700µs
5/310µs
VDE 0433 :
10/700µs
5/310µs
VDE 0878 :
1.2/50µs
1/20µs
I3124 :
0.5/700µs
0.2/310µs
FCC part 68 :
2/10µs
2/10µs
BELLCORE
TR-NWT-001089 :
2/10µs
2/10µs
10/1000µs
10/1000µs
(*) with series resistors or PTC.
1kV
38A
2kV
50A
1.5kV
40A
1kV
38A
2.5kV
125A (*)
2.5kV
125A (*)
1kV
40A (*)
SO8
SCHEMATIC DIAGRAM
TIP 1
GND ₂
GND ₃
RING ₄
8 TIP
7 ^GND
6 GND
5 ^RING
February 1998 - Ed: 2
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