参数资料
| 型号： | TISP7260F3P |
| 厂商： | Bourns Inc. |
| 文件页数： | 15/19页 |
| 文件大小： | 0K |
| 描述： | SURGE SUPP 200V BIDIR 8-DIP |
| 标准包装： | 50 |
| 电压 - 击穿： | 260V |
| 电压 - 断路： | 200V |
| 电压 - 导通状态： | 5V |
| 电流 - 峰值脉冲(8 x 20µs)： | 175A |
| 电流 - 峰值脉冲(10 x 1000µs)： | 45A |
| 电流 - 保持 (Ih)： | 150mA |
| 元件数： | 3 |
| 电容： | 39pF |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
TISP7xxxF3 (MV, HV) Overvoltage Protector Series
APPLICATIONS INFORMATION
Lightning Surge (continued)
ITU-T 10/700 Generator (continued)
V C
2.8 kV
SW
R 2
15 ?
R 3
25 ?
70 A
5/310
T
R
R
T
R
C 1
20 μ F
R 1
50 ?
C 2
200 nF
70 A
G
5/310
G
G
T
10/700 GENERATOR - SINGLE TERMINAL PAIR TEST
T AND G
TEST
R 4
25 ?
R AND G
TEST
95 A
4/250
R AND T
TEST
V C
5.2 kV
SW
R 2
15 ?
R 3
25 ?
95 A
4/250
T
R
C 1
20 μ F
R 1
50 ?
C 2
200 nF
190 A
4/250
G
10/700 GENERATOR - DUAL TERMINAL PAIR TEST
DUAL
T AND G,
R AND G
TEST
Figure 33.
With the generator output open circuit, when SW closes, C1 discharges through R1. The decay time constant will be C 1R1, or 20 x 50 =
1000 μ s. For the 50 % voltage decay time, the time constant needs to be multiplied by 0.697, giving 0.697 x 1000 = 697 μ s which is rounded to
700 μ s.
The output rise time is controlled by the time constant of R 2 and C2, which is 15 x 200 = 3000 ns or 3 μ s. Virtual voltage rise times are given
by straight line extrapolation through the 30 % and 90 % points of the voltage waveform to zero and 100 %. Mathematically, this is equivalent to
3.24 times the time constant, which gives 3.24 x 3 = 9.73 which is rounded to 10 μ s. Thus, the open circuit voltage rises in 10 μ s and decays in
700 μ s, giving the 10/700 generator its name.
When the overvoltage protector switches, it effectively shorts the generator output via the series 25 ? resistor. Two short circuit conditions
need to be considered: single output using R3 only (top circuit of Figure 33) and dual output using R3 and R4 (bottom circuit of Figure 33).
For the single test, the series combination of R2 and R3 (15 + 25 = 40 ? ) is in shunt with R 1. This lowers the discharge resistance from 50 ? to
22.2 ? , giving a discharge time constant of 444 μ s and a 50% current decay time of 309.7 μ s, which is rounded to 310 μ s.
For the rise time, R2 and R3 are in parallel, reducing the effective source resistance from 15 ? to 9.38 ? , giving a time constant of 1.88 μ s.
Virtual current rise times are given by straight line extrapolation through the 10 % and 90 % points of the current waveform to zero and 100 %.
Mathematically, this is equivalent to 2.75 times the time constant, which gives 2.75 x 1.88 = 5.15, which is rounded to 5 μ s. Thus, the short
circuit current rises in 5 μ s and decays in 310 μ s, giving the 5/310 wave shape.
The series resistance from C1 to the output is 40 ? , giving an output conductance of 25 A/kV. For each 1 kV of capacitor charge voltage, 25 A
of output current will result.
For the dual test, the series combination of R2 plus R3 and R4 in parallel (15 + 12.5 = 27.5 ? ) is in shunt with R1. This lowers the discharge
resistance from 50 ? to 17.7 ? , giving a discharge time constant of 355 μ s and a 50% current decay time of 247 μ s, which is rounded to
250 μ s.
For the rise time, R2, R3 and R 4 are in parallel, reducing the effective source resistance from 15 ? to 6.82 ? , giving a time constant of 1.36 μ s,
which gives a current rise time of 2.75 x 1.36 = 3.75, which is rounded to 4 μ s. Thus, the short circuit current rises in 4 μ s and decays in 250
μ s, giving the 4/250 wave shape.
MARCH 1994 - REVISED SEPTEMBER 2008
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 |
|---|---|
| TISP7260F3PS | 制造商:Bourns Inc 功能描述: |
| TISP7260F3P-S | 功能描述:硅对称二端开关元件 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 |
| TISP7260F3SL | 功能描述:硅对称二端开关元件 200V(DRM) 260V(BO) 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 |
| TISP7260F3SLS | 制造商:Bourns Inc 功能描述: |
| TISP7260F3SL-S | 功能描述:硅对称二端开关元件 200V(DRM) 260V(BO) 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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