TISP1082F3 Power Innovations Limited, TISP1082F3 Datasheet - Page 11
TISP1082F3
Manufacturer Part Number
TISP1082F3
Description
DUAL ASYMMETRICAL TRANSIENT VOLTAGE SUPPRESSORS
Manufacturer
Power Innovations Limited
Datasheet
1.TISP1082F3.pdf
(17 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TISP1082F3SL
Manufacturer:
BOURNS/伯恩斯
Quantity:
20 000
protection voltage
capacitance
off-state capacitance
P R O D U C T
The protection voltage, (V
This increase is dependent on the rate of current rise, di/dt, when the TISP is clamping the voltage in its
breakdown region. The V
V
can be made from the surge generator voltage rate of rise, dv/dt, and the circuit resistance.
As an example, the CCITT IX K17 1.5 kV, 10/700 µs surge has an average dv/dt of 150 V/µs, but, as the rise
is exponential, the initial dv/dt is higher, being in the region of 450 V/µs. The instantaneous generator output
resistance is 25
becomes 45
measured di/ dt and protection voltage increase will be lower due to inductive effects and the finite slope
resistance of the TISP breakdown region.
The off-state capacitance of a TISP is sensitive to junction temperature, T
of the dc voltage, V
with an ac voltage of 100 mV. The typical 25°C variation of capacitance value with ac bias is shown in Figure
21. When V
constant over the range of normal telecommunication frequencies.
(BO)
(250 V/ms) value by the normalised increase at the surge’s di/dt (Figure 8.) . An estimate of the di/dt
D
>> V
.
I N F O R M A T I O N
. If the equipment has an additional series resistance of 20
d
The maximum di/dt then can be estimated as 450/45 = 10 A/µs.
D
the capacitance value is independent on the value of V
, and the ac voltage, V
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
(BO)
(BO)
1
value under surge conditions can be estimated by multiplying the 50 Hz rate
), increases under lightning surge conditions due to thyristor regeneration.
Normalised to V
DC Bias, V
APPLICATIONS INFORMATION
NORMALISED CAPACITANCE
RMS AC TEST VOLTAGE
V
d
- RMS AC Test Voltage - mV
D
= 0
10
d
Figure 21.
. All the capacitance values in this data sheet are measured
d
= 100 mV
vs
100
DUAL ASYMMETRICAL TRANSIENT
SEPTEMBER 1993 - REVISED SEPTEMBER 1997
AIXXAA
1000
J
, and the bias voltage, comprising
d
VOLTAGE SUPPRESSORS
. The capacitance is essentially
TISP1072F3, TISP1082F3
, the total series resistance
In practice the
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