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These devices are designed to limit overvoltages on digital telecommunication lines. Overvoltages are normally caused by a.c. power system or lightning flash disturbances which are induced or conducted on to the telephone line. A single device provides 2-point protection and is typically used for the protection of transformer windings and low voltage electronics.
The protector consists of a symmetrical voltage-triggered bidirectional thyristor. Overvoltages are initially clipped by breakdown clamping until the voltage rises to the breakover level, which causes the device to crowbar into a low-voltage on-state condition. This low-voltage on state causes the current resulting from the overvoltage to be safely diverted through the device. The device switches off when the diverted current falls below the holding current value.
TISP4030L1BJ Maximum Ratings
Rating
Symbol
Value
Unit
Repetitive peak off-state voltage '4015 '4030 '4040
VDRM
±8 ±15 ± 25
V
Non-repetitive peak on-state pulse current (see Notes 1 and 2) 2/10 s (Telcordia GR-1089-CORE, 2/10 s voltage wave shape) 8/20 s (IEC 61000-4-5, combination wave generator, 1.2/50 voltage, 8/20 current) 10/160 s (FCC Part 68, 10/160 s voltage wave shape) 5/310 s (ITU-T K.20/45/21, 10/700 s voltage wave shape) 5/320 s (FCC Part 68, 9/720 s voltage wave shape) 10/560 s (FCC Part 68, 10/560 s voltage wave shape) 10/1000 s (Telcordia GR-1089-CORE, 10/1000 s voltage wave shape)
ITSP
± 150 ± 120 ± 65 ± 45 ± 45 ± 35 ± 30
A
Non-repetitive peak on-state current (see Notes 1 and 2) 20 ms (50 Hz) full sine wave 16.7 ms (60 Hz) full sine wave 0.2 s 50 Hz/60 Hz a.c. 2 s 50 Hz/60 Hz a.c. 1000 s 50 Hz/60 Hz a.c.
ITSM
20 22 13 5 1.8
A
Initial rate of rise of current (2/10 waveshape)
di/dt
130
A/s
Maximum junction temperature
TJM
150
Storage temperature range
Tstg
-65 to +150
NOTES: 1. Initially, the device must be in thermal equilibrium with TJ = 25 . 2. The surge may be repeated after the device returns to its initial conditions.
TISP4040L1AJ General Description
These devices are designed to limit overvoltages on digital telecommunication lines. Overvoltages are normally caused by a.c. power system or lightning flash disturbances which are induced or conducted on to the telephone line. A single device provides 2-point protection and is typically used for the protection of transformer windings and low voltage electronics.
The protector consists of a symmetrical voltage-triggered bidirectional thyristor. Overvoltages are initially clipped by breakdown clamping until the voltage rises to the breakover level, which causes the device to crowbar into a low-voltage on-state condition. This low-voltage on state causes the current resulting from the overvoltage to be safely diverted through the device. The device switches off when the diverted current falls below the holding current value.
TISP4040L1AJ Maximum Ratings
Rating
Symbol
Value
Unit
Repetitive peak off-state voltage '4015 '4030 '4040
VDRM
±8 ±15 ± 25
V
Non-repetitive peak on-state pulse current (see Notes 1 and 2) 2/10 s (Telcordia GR-1089-CORE, 2/10 s voltage wave shape) 8/20 s (IEC 61000-4-5, combination wave generator, 1.2/50 voltage, 8/20 current) 10/160 s (FCC Part 68, 10/160 s voltage wave shape) 5/310 s (ITU-T K.20/45/21, 10/700 s voltage wave shape) 5/320 s (FCC Part 68, 9/720 s voltage wave shape) 10/560 s (FCC Part 68, 10/560 s voltage wave shape) 10/1000 s (Telcordia GR-1089-CORE, 10/1000 s voltage wave shape)
ITSP
± 150 ± 120 ± 65 ± 45 ± 45 ± 35 ± 30
A
Non-repetitive peak on-state current (see Notes 1 and 2) 20 ms (50 Hz) full sine wave 16.7 ms (60 Hz) full sine wave 0.2 s 50 Hz/60 Hz a.c. 2 s 50 Hz/60 Hz a.c. 1000 s 50 Hz/60 Hz a.c.
ITSM
20 22 13 5 1.8
A
Initial rate of rise of current (2/10 waveshape)
di/dt
130
A/s
Maximum junction temperature
TJM
150
Storage temperature range
Tstg
-65 to +150
NOTES: 1. Initially, the device must be in thermal equilibrium with TJ = 25 . 2. The surge may be repeated after the device returns to its initial conditions.