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PANJIT P4SMA170A_R1_00001
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- PANJIT P4SMA170A_R1_00001
- Type
- PANJIT
- Minimum package
- 1800 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- PANJIT
- Electronic Component
- P4SMA170A_R1_00001
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.022g
- Electronic Component
- 1
- Electronic Component
- BM0227686054
- Operating Temperature
- 55℃~+150℃
- Voltage
- 234V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 179V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
P4SMA170A_R1_00001 产品概述
一、产品简介
P4SMA170A_R1_00001 是 PANJIT（强茂）出品的一款单向 TVS（瞬态电压抑制）二极管，封装为 SMA（DO-214AC），专为抑制工业脉冲浪涌与雷击冲击设计。器件在 10/1000 μs 波形下可承受 400W 峰值脉冲功率，适合用于需要对抗高能突发过电压的电源线与信号线保护场合。
二、主要性能参数
- 极性：单向（Unidirectional）
- 反向工作电压 Vrwm：145 V
- 击穿电压 VBR：179 V（在规定电流下测得）
- 钳位电压（Ipp=1.8 A，10/1000 μs）：234 V
- 峰值脉冲电流 Ipp：1.8 A（10/1000 μs）
- 峰值脉冲功率 Ppp：400 W（10/1000 μs）
- 反向漏电流 Ir：≤1 μA
- 工作温度范围：-55 °C ～ +150 °C
- 封装：SMA（DO-214AC）
三、关键特性与典型应用
该器件具有高能吸收能力与低漏电流的特性，单向结构在正向工作时表现为低压降，反向瞬态时迅速导通，将过电压钳位在安全范围内。典型应用包括：
- 直流电源保护（中高压直流母线、逆变器辅助回路）
- 电源适配器与开关电源输入端防雷击、浪涌保护
- 工业控制、楼宇自控系统的外部接口保护
- 通信与监控设备的电源/信号防护
四、安装与热管理建议
- SMA 封装适合流行的双面贴片或手工焊接工艺，建议按器件厂商提供的焊盘布局进行 PCB 设计以保证良好焊接强度与热散布。
- 浪涌能量会产生热量，建议在可能承受频繁脉冲的场合增加散热铜箔或热通孔，或与其他保护器件协同工作以分散能量。
- 布线应尽量短而粗，钳位点接地要直接、低阻抗，避免走长回流路径导致钳位性能下降。
五、选型与注意事项
- 选用 Vrwm 时应接近或略高于电路最大工作电压，以避免正常工作时器件接近击穿。Vrwm=145 V 适用于约 120–140 V 级别直流侧保护。
- 钳位电压 234 V（在 Ipp 条件下）表示在高能脉冲情况下被保护节点仍会承受较高电压，需确认被保护设备能承受该电压峰值或采取级联保护。
- 若遇到更高能量或更低钳位需求，可并联或级联其他 TVS 器件，但应注意功率分配与动态阻抗匹配。
- 器件本身对静电与浪涌有一定承受力，但在装配与存储过程中仍应采取常规 ESD 防护措施。
六、可靠性与包装
P4SMA170A_R1_00001 适用于工业级温度范围（-55 ℃～+150 ℃），在正确安装与热管理下可长期稳定工作。购买时建议确认批次数据表与出厂测试报告以满足特定可靠性要求。
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