WMSIC Electronic Components

DOWO SMD4532-400M SMD4532

ModelSMD4532-400M
Package1812
BrandDOWO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO SMD4532-400M
Type
DOWO
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SMD4532-400M
Electronic Component
1
Electronic Component
3.2mm
Package
1812
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
±20%
Electronic Component
0.604g
Electronic Component
4.5mm
Electronic Component
2.7mm
Electronic Component
1
Electronic Component
BM0264866309
Operating Temperature
40℃~+90℃
Capacitor
1pF

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMD4532-400M 产品概述

一、产品简介

SMD4532-400M(品牌:DOWO/东沃)是一款面向中高压瞬态抑制与浪涌保护的片式二端器件,封装为1812(尺寸 4.5 × 3.2 × 2.7 mm)。器件极数为双极(2 极),直流击穿电压标称 400 V,精度 ±20%,脉冲放电能力高达 2 kA,极间电容仅 1 pF,工作温度范围 -40 ℃ 至 +90 ℃。总体定位为在高压供电与防雷/浪涌抑制场合提供可靠的过压保护,同时对高速信号线影响极小。

二、主要性能特点

  • 高脉冲能量承受能力:尖峰放电电流可达 2 kA(短时冲击),适合 8/20 µs 类浪涌能量吸收场合。
  • 高击穿电压:典型直流击穿电压 400 V,适用于中高压直流与交流系统的防护。
  • 低极间电容:仅 1 pF,对高速数据线与信号完整性影响甚小,适合低容敏感电路。
  • 宽温工作:-40 ℃ 到 +90 ℃,可在工业环境长期工作。
  • 贴片 1812 封装:便于自动贴装、回流焊接和大批量生产。

三、电气与机械参数(概要)

  • 型号:SMD4532-400M(DOWO/东沃)
  • 极数:2 极
  • 直流击穿电压 (Vdc):400 V(±20%)
  • 脉冲放电电流:2 kA(峰值,短时浪涌)
  • 极间电容:1 pF
  • 工作温度:-40 ℃ ~ +90 ℃
  • 外形尺寸:4.5 mm × 3.2 mm × 2.7 mm(封装 1812)

注:具体应用时请参考厂方完整数据手册以确认测试条件(如脉冲波形、测量标准等)。

四、典型应用场景

  • 工业电源与配电保护:变频器、PLC、控制柜等的输入端及敏感模块防护。
  • 可再生能源电站:光伏逆变器、储能系统对直流侧与交流侧的浪涌保护。
  • 电动汽车与充电桩:高压直流输电线路的过压与浪涌抑制。
  • 通信及数据线路:由于低电容特性,可用于对高频信号链路的防护。
  • 电源模块与开关电源:对开关器件、整流桥、滤波电容的浪涌缓冲。

五、封装与安装建议

  • 封装为 1812(SMD),推荐采用常规 SMT 自动贴装与回流焊工艺。
  • 回流焊温度及曲线请依据元器件耐热性和厂方推荐的焊接规范执行,避免超温或长时间高温暴露。
  • 为保证浪涌承受能力和散热,建议合理布局——保护器件尽可能靠近被保护端口或输入端。
  • 对于高能量应用,可通过并联多只器件分摊能量,但需注意匹配电压特性并采取适当电阻或阻抗平衡措施。

六、选型与系统配合建议

  • 根据系统最大工作电压与可能出现的瞬态电压幅值,选择击穿电压和能量等级合适的型号;本型号适合 400 V 级别直流/高压应用。
  • 若用于线路侧防雷或高能浪涌,需与熔断器、限流器件、线缆屏蔽及接地系统配合,形成完整的防护方案。
  • 对于对容性敏感的高速信号通路,本器件低至 1 pF 的极间电容,可有效降低对信号带宽的影响。

七、品质与服务

DOWO(东沃)对出厂器件通常进行基本电气参数测试与外观检验,支持样品测试与批量供货。建议在量产前与供应商确认详细的可靠性测试报告、浪涌试验条件(如 8/20 µs 或其他波形)以及环保与放行文件(如 RoHS 等),以满足项目的认证和质量要求。

如需进一步的原理图接入示例、推荐封装焊盘尺寸或实际波形下的能量吸收曲线,可联系供应商获取完整数据手册与实验测试资料。

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