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
BZA420A 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 20
7
Product data sheet
BZA420A
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相关代理商/技术参数
BZA420A,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
BZA420A115 制造商:NXP Semiconductors 功能描述:DIODE ESD PROTECTION
BZA456A 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:DIODE, TVS, QUAD, SOT-457; TVS Polarity:Unidirectional; Clamping Voltage Vc Max:8V; Peak Pulse Current Ippm:3A; Diode Case Style:SOT-457; No. of Pins:6; Power Dissipation Pd:720mW; SVHC:No SVHC (19-Dec-2012); Capacitance Cd @ Vr ;RoHS Compliant: Yes
BZA456A /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
BZA456A /T3 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
BZA456A,115 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
BZA456A,125 功能描述:TVS二极管阵列 5.88V Diode TVS Quad Uni-Dir 24W 6-Pin 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
BZA456A,135 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