参数资料
| 型号： | TBU-CX085-VTC-WH |
| 厂商： | Bourns Inc. |
| 文件页数： | 2/5页 |
| 文件大小： | 0K |
| 描述： | SURGE SUPP TBU 850VIMP SMD |
| 产品目录绘图： | TBU-CX Series Top TBU-CX Series Side |
| 标准包装： | 1 |
| 系列： | TBU-CX |
| 电压 - 工作： | 425V |
| 电压 - 箝位： | 850V |
| 技术： | 混合技术 |
| 电路数： | 2 |
| 应用： | 通用 |
| 封装/外壳： | SMD 4.00mm x 8.25mm |
| 供应商设备封装： | SMD |
| 包装： | 标准包装 |
| 其它名称： | TBU-CX085-VTC-WHDKR |
TBU-CX Series - TBU ? High-Speed Protectors
The TBU devices are general use protectors used in a wide
Reference Application
?
variety of applications. The maximum voltage rating of the TBU
device should never be exceeded. Where necessary, an OVP
should be employed to limit the maximum voltage. A cost-
effective protection solution combines Bourns ? TBU ? protection
devices with a pair of Bourns ? MOVs. For bandwidth sensitive ap-
plications, a Bourns ? GDT may be substituted for the MOV. See
“Trigger Current vs External Resistor Value” graph for selecting
the optimum trigger current value using a 0 ohm – 50 ohm
resistor value.
Note: Line Resistance =
TBU ? Device Resistance + R external Resistance
Basic TBU Operation
The TBU ? device, constructed using MOSFET semiconductor
technology, placed in the system circuit will monitor the
current with the MOSFET detection circuit triggering to provide
an effective barrier behind which sensitive electronics are not
exposed to large voltages or currents during surge events. The
TBU ? device operates in approximately 1 μs - once line
current exceeds the TBU ? device’s trigger current Itrigger.
When operated, the TBU ? device restricts line current to less
than 1 mA typically. When operated, the TBU ? device will
block all voltages including the surge up to rated limits.
After the surge, the TBU ? device resets when the voltage
across the TBU ? device falls to the V reset level. The TBU ?
device will automatically reset on lines which have no DC bias
or have DC bias below V reset (such as unpowered signal lines).
R
External
Resistor
If the line has a normal DC bias above V reset , the voltage
Equip.
TBU ?
Device
TBU ?
Device
OVP
OVP
Line
across the TBU ? device may not fall below V reset after the
surge. In such cases, special care needs to be taken to ensure
that the TBU ? device will reset, with software monitoring as one
method used to accomplish this. Bourns application
engineers can provide further assistance.
Line
Performance Graphs
R
External
Resistor
Typical V-I Characteristics (TBU-CX050-VTC-WH with Rext = 1 Ω )
I TRIP
CURRENT
(100 mA/div)
Typical Trigger Current vs. Temperature
1.8
1.6
1.4
V RESET
1.2
1.0
VOLTAGE
(5 V/div)
0.8
0.6
0.4
0.2
0.0
-75 -50
-25
0
25
50
75
100 125
Junction Temperature (°C)
Speci?cations are subject to change without notice.
Customers should verify actual device performance in their speci?c applications.
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TBU-CX085-VTC-WH | 制造商:Bourns Inc 功能描述:OVERVOLTAGE PROTECTOR 850V DFN |
| TBU-DESIGNKIT | 功能描述:器件套件 10ea of 18 devices TBU RoHS:否 制造商:AVX 零部件类型: |
| TBU-DT065-100-WH | 功能描述:浪涌抑制器 Dual Unidirectional TBU Device RoHS:否 制造商:Bourns 电压额定值:40 V 电流额定值:750 mA 工作温度范围:- 40 C to + 125 C 端接类型:SMD/SMT 封装 / 箱体: |
| TBU-DT065-200-WH | 功能描述:浪涌抑制器 Dual Unidirectional TBU Device RoHS:否 制造商:Bourns 电压额定值:40 V 电流额定值:750 mA 工作温度范围:- 40 C to + 125 C 端接类型:SMD/SMT 封装 / 箱体: |
| TBU-DT065-300-WH | 功能描述:浪涌抑制器 Dual Unidirectional TBU Device RoHS:否 制造商:Bourns 电压额定值:40 V 电流额定值:750 mA 工作温度范围:- 40 C to + 125 C 端接类型:SMD/SMT 封装 / 箱体: |
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