参数资料
型号: TISP4395H3LM
厂商: BOURNS INC
元件分类: 浪涌电流限制器
英文描述: 395 V, 60 A, SILICON SURGE PROTECTOR, DO-92
封装: PLASTIC, TO-92, 2 PIN
文件页数: 2/13页
文件大小: 376K
代理商: TISP4395H3LM
NOVEMBER 1997 - REVISED JANUARY 2007
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Deployment
TISP4xxxH3LM Overvoltage Protector Series
APPLICATIONS INFORMATION
These devices are two terminal overvoltage protectors. They may be used either singly to limit the voltage between two conductors (Figure 12)
or in multiples to limit the voltage at several points in a circuit (Figure 13).
In Figure 12, protector Th1 limits the maximum voltage between the two conductors to ±V(BO). This configuration is normally used to protect
circuits without a ground reference, such as modems. In Figure 13, protectors Th2 and Th3 limit the maximum voltage between each conduc-
tor and ground to the ±V(BO) of the individual protector. Protector Th1 limits the maximum voltage between the two conductors to its ±V(BO)
value. If the equipment being protected has all its vulnerable components connected between the conductors and ground, then protector Th1
is not required.
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.
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 fictive 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 verification over a
temperature range. By using the rated waveform values from Figure 11, the appropriate series resistor value can be calculated for ambient
temperatures in the range of -40 °C to 85 °C.
AC Power Testing
The protector can withstand 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 resistors 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).
Figure 12. TWO POINT PROTECTION
Figure 13. MULTI-POINT PROTECTION
Th1
Th3
Th2
Th1
Standard
Peak Voltage
Setting
V
Voltage
Waveform
s
Peak Current
Value
A
Current
Waveform
s
TISP4xxxH3
25 °C Rating
A
Series
Resistance
GR-1089-CORE
2500
2/10
500
2/10
500
0
1000
10/1000
100
10/1000
100
FCC Part 68
(March 1998)
1500
10/160
200
10/160
250
0
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
相关PDF资料
PDF描述
TISP4400H3LMFR 400 V, 60 A, SILICON SURGE PROTECTOR, DO-92
TISP4400H3LM 400 V, 60 A, SILICON SURGE PROTECTOR, DO-92
TISP4220M3LM 220 V, 32 A, SILICON SURGE PROTECTOR, DO-92
TISP4240M3LM 240 V, 32 A, SILICON SURGE PROTECTOR, DO-92
TISP4400M3LM 400 V, 32 A, SILICON SURGE PROTECTOR, DO-92
相关代理商/技术参数
参数描述
TISP4395H3LMFR 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
TISP4395H3LMFR-S 功能描述:硅对称二端开关元件 PROTECTOR - SINGLE 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
TISP4395H3LM-S 功能描述:硅对称二端开关元件 Single bidirectional protector 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
TISP4395J1 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
TISP4395J1BJ 制造商:BOURNS 制造商全称:Bourns Electronic Solutions 功能描述:BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS