参数资料
| 型号： | TISP3250H3SL |
| 厂商： | Bourns Inc. |
| 文件页数： | 10/11页 |
| 文件大小： | 0K |
| 描述： | SURGE SUPP 190V BIDIR 3-SL |
| 产品变化通告： | Product Obsolescence Jun/2008 |
| 标准包装： | 50 |
| 电压 - 击穿： | 250V |
| 电压 - 断路： | 190V |
| 电压 - 导通状态： | 3V |
| 电流 - 峰值脉冲(8 x 20µs)： | 300A |
| 电流 - 峰值脉冲(10 x 1000µs)： | 100A |
| 电流 - 保持 (Ih)： | 150mA |
| 元件数： | 2 |
| 电容： | 62pF |
| 封装/外壳： | 径向 - 3 引线 |
| 包装： | 管件 |
TISP3xxxH3SL Overvoltage Protector Series
APPLICATIONS INFORMATION
Impulse Testing
To verify the withstand capability and safety of the equipment, standards require that the equipment is tested with various impulse wave
forms. The table below shows some common values.
Peak Voltage
Voltage
Peak Current
Current
TISP3xxxH3
Series
Standard
Setting
V
Waveform
μ s
Value
A
Waveform
μ s
25 ° C Rating
A
Resistance
?
GR-1089-CORE
2500 2/10 500 2/10 500
1000 10/1000 100 10/1000 100
0
1500 10/160 200 10/160 250 0
FCC Part 68
(March 1998)
800 10/560 100 10/560 160 0
1500 9/720 ? 37.5 5/320 ? 200 0
1000 9/720 ? 25 5/320 ? 200 0
I3124 1500 0.5/700 37.5 0.2/310 200 0
ITU-T K.20/K.21
1500
4000
10/700
37.5
100
5/310 200 0
? FCC Part 68 terminology for the waveforms produced by the ITU-T recommendation K.21 10/700 impulse generator
If the impulse generator current exceeds the protector ’s current rating, then a series resistance can be used to reduce the current to the
protector ’s rated value to prevent possible failure. The required value of series resistance for a given waveform is given by the following
calculations. First, the minimum total circuit impedance is found by dividing the impulse generator ’s peak voltage by the protector ’s rated
current. The impulse generator ’s fictitious impedance (generator ’s peak voltage divided by peak short circuit current) is then subtracted
from the minimum total circuit impedance to give the required value of series resistance. In some cases, the equipment will require verifi-
cation over a temperature range. By using the rated waveform values from Figure 10, the appropriate series resistor value can be calcu-
lated for ambient temperatures in the range of -40 °C to 85 °C.
AC Power Testing
The protector can withstand the G return currents applied for times not exceeding those shown in Figure 8. Currents that exceed these
times must be terminated or reduced to avoid protector failure. Fuses, PTC (Positive Temperature Coefficient) resistors and fusible resis-
tors are overcurrent protection devices which can be used to reduce the current flow. Protective fuses may range from a few hundred
milliamperes to one ampere. In some cases, it may be necessary to add some extra series resistance to prevent the fuse opening during
impulse testing. The current versus time characteristic of the overcurrent protector must be below the line shown in Figure 8. In some
cases, there may be a further time limit imposed by the test standard (e.g. UL 1459 wiring simulator failure).
Capacitance
The protector characteristic off-state capacitance values are given for d.c. bias voltage, V D , values of 0, -1 V, -2 V, and -50 V. Where pos-
sible, values are also given for -100 V. Values for other voltages may be calculated by multiplying the V D = 0 capacitance value by the
factor given in Figure 6. Up to 10 MHz, the capacitance is essentially independent of frequency. Above 10 MHz, the effective capaci-
tance is strongly dependent on connection inductance. In many applications, the typical conductor bias voltages will be about -2 V and
-50 V. Figure 7 shows the differential (line unbalance) capacitance caused by biasing one protector at -2 V and the other at -50 V.
Normal System Voltage Levels
The protector should not clip or limit the voltages that occur in normal system operation. For unusual conditions, such as ringing without
the line connected, some degree of clipping is permissible. Under this condition, about 10 V of clipping is normally possible without acti-
vating the ring trip circuit. Figure 9 allows the calculation of the protector V DRM value at temperatures below 25 °C. The calculated value
should not be less than the maximum normal system voltages. The TISP3290H3, with a V DRM of 220 V, can be used for the protection of
ring generators producing 105 V rms of ring on a battery voltage of -58 V. The peak ring voltage will be 58 + 1.414*105 = 206.5 V.
However, this is the open circuit voltage and the connection of the line and its equipment will reduce the peak voltage.
JANUARY 1999 - REVISED JANUARY 2007
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TISP3250H3SL-S | 功能描述:硅对称二端开关元件 Dual Bidirectional overvolt protecter RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流（在 VDRM IDRM 下）: 保持电流（Ih 最大值）:50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA |
| TISP3250T3 | 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:Overvoltage Protector Series |
| TISP3260F3 | 制造商:POINN 制造商全称:Power Innovations Ltd 功能描述:DUAL SYMMETRICAL TRANSIENT VOLTAGE SUPPRESSORS |
| TISP3260F3DR | 功能描述:硅对称二端开关元件 High Volt Dual Bidirectional RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流（在 VDRM IDRM 下）: 保持电流（Ih 最大值）:50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA |
| TISP3260F3DR-S | 功能描述:硅对称二端开关元件 High Volt Dual Bidirectional RoHS:否 制造商:Bourns 转折电流 VBO:40 V 最大转折电流 IBO:800 mA 不重复通态电流: 额定重复关闭状态电压 VDRM:25 V 关闭状态漏泄电流（在 VDRM IDRM 下）: 保持电流（Ih 最大值）:50 mA 开启状态电压:5 V 关闭状态电容 CO:120 pF 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:DO-214AA |
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