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| 型号： | BZA408B,125 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 6/9页 |
| 文件大小： | 0K |
| 描述： | TVS ZENER QUAD BIDIR 5.5V SC-74 |
| 标准包装： | 1 |
| 电压 - 反向隔离（标准值）： | 5V |
| 电压 - 击穿： | 5.5V |
| 功率（瓦特）： | 20W |
| 电极标记： | 4 通道阵列 - 双向 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74，SOT-457 |
| 供应商设备封装： | 6-TSOP |
| 包装： | 标准包装 |
| 其它名称： | 568-7008-6 |
NXP Semiconductors
Quadruple bidirectional ESD transient
voltage suppressor
Product data sheet
BZA408B
APPLICATION INFORMATION
Typical bidirectional application
A quadruple bidirectional transient suppressor in a SOT457 package makes it possible to protect four separate lines
using only one package. One simplified example is shown in Fig.6.
handbook, full pagewidth
audio in L
audio in R
audio out L
audio out R
TVSET/VCR
SCART
CONNECTOR
BZA408B
GND
MGR559
Fig.6 Scart connector protection.
Device placement and printed-circuit board layout
Circuit board layout is of extreme importance in the suppression of transients. The clamping voltage of the BZA408B is
determined by the peak transient current and the rate of rise of that current (di/dt). Since parasitic inductances can further
add to the clamping voltage (V = L di/dt) the series conductor lengths on the printed-circuit board should be kept to a
minimum. This includes the lead length of the suppression element.
In addition to minimizing conductor length the following printed-circuit board layout guidelines are recommended:
1. Place the suppression element close to the input terminals or connectors.
2. Keep parallel signal paths to a minimum.
3. Avoid running protection conductors in parallel with unprotected conductors.
4. Minimize all printed-circuit board loop areas including power and ground loops.
5. Minimize the length of the transient return path to ground.
6. Avoid using shared transient return paths to a common ground point.
1998 Oct 15
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BZA408BT/R | 制造商:NXP Semiconductors 功能描述:ESD Suppressor TVS 15KV 6-Pin TSOP T/R |
| BZA418A | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Quadruple ESD transient voltage suppressor |
| BZA418A /T2 | 功能描述:TVS二极管阵列 DIODE ARRAY TAPE-11 REVERSE RoHS:否 制造商:Littelfuse 极性: 通道:4 Channels 击穿电压: 钳位电压:11.5 V 工作电压:2.5 V 峰值浪涌电流:20 A 安装风格:SMD/SMT 端接类型:SMD/SMT 系列: 最小工作温度:- 40 C 最大工作温度:+ 85 C |
| BZA418A,165 | 功能描述:TVS二极管阵列 DIODE ARRAY TAPE-11 RoHS:否 制造商:Littelfuse 极性: 通道:4 Channels 击穿电压: 钳位电压:11.5 V 工作电压:2.5 V 峰值浪涌电流:20 A 安装风格:SMD/SMT 端接类型:SMD/SMT 系列: 最小工作温度:- 40 C 最大工作温度:+ 85 C |
| BZA420A | 制造商:NXP Semiconductors 功能描述:DIODE TVS QUAD SOT-457 制造商:NXP Semiconductors 功能描述:DIODE, TVS, QUAD, SOT-457 制造商:NXP Semiconductors 功能描述:Quad Transient Voltage Supp,BZA420A |
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