NXP Semiconductors
Quadruple ESD transient voltage
suppressor
Device placement and printed-circuit board layout
Circuit board layout is of extreme importance in the
suppression of transients. The clamping voltage of the
BZA456A 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.
1999 May 25
7
Product data sheet
BZA456A
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BZA462A T/R 功能描述:TVS二极管阵列 DIODE ARRAY TAPE-7 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
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BZA462A,125 功能描述:ESD 抑制器 6.51V Diode TVS Quad Uni-Dir 24W 6-Pin RoHS:否 制造商:STMicroelectronics 通道:8 Channels 击穿电压:8 V 电容:45 pF 端接类型:SMD/SMT 封装 / 箱体:uQFN-16 功率耗散 Pd: 工作温度范围:- 40 C to + 85 C
BZA462A115 制造商:NXP Semiconductors 功能描述:DIODE ESD PROTECTION
BZA462A125 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: