Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
DOWO SMD4532-075N SMD4532
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMD4532-075N
- Type
- DOWO
- Minimum package
- 2500 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMD4532-075N
- Electronic Component
- 1
- Electronic Component
- 3.2mm
- Package
- 1812
- Electronic Component
- (GDT)
- Electronic Component
- ±30%
- Electronic Component
- 0.626g
- Electronic Component
- 4.5mm
- Electronic Component
- 2.7mm
- Electronic Component
- 1
- Electronic Component
- BM0230826999
- Operating Temperature
- 40℃~+90℃
- Capacitor
- 1pF
- 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.
SMD4532-075N 产品概述
SMD4532-075N 是东沃（DOWO）推出的一款面向瞬态过压/浪涌保护的表面贴装器件，封装1812（尺寸约4.5mm × 3.2mm × 2.7mm）。器件设计用于在高能脉冲事件下吸收能量并保护下游电路，适配工业与通信等对瞬态干扰敏感的应用场景。
一、主要规格亮点
- 脉冲放电电流（Ipp）：2 kA（峰值）
- 直流击穿电压（Vdc）：75 V（标称）
- 冲击击穿电压（Vimp）：650 V
- 工作温度范围：-40 ℃ 至 +90 ℃
- 封装尺寸：1812（4.5 mm × 3.2 mm），高度 2.7 mm
- 极间电容：1 pF（低电容，利于高速信号线应用）
- 标称精度/公差：±30%（典型）
二、性能含义与应用价值
75V 的直流击穿电压和 2kA 的峰值脉冲放电能力，说明该器件可承受较强的浪涌能量，适合直流母线、开关电源输入侧、汽车电源辅助线路或工业控制系统的过压保护。1 pF 的低极间电容使其在需要保留信号完整性的场合（如某些数据/通信线）也能应用，而不会显著影响传输性能。
三、典型应用场景
- 工业控制与PLC 电源防护
- 通信设备的线路保护与浪涌抑制
- 电源模块输入侧的浪涌能量吸收
- 需要低电容保护且耐受大能量冲击的场合
四、封装与布局注意事项
- 使用标准1812贴片焊盘并保证焊盘过孔和热量分布均匀，避免局部过热。
- 布线时使保护器件与被保护端尽量靠近，减小回路面积以提升抑制效果。
- 对高速信号通道应用，注意器件的1 pF电容带来的影响，必要时在器件前端增加匹配或滤波元件。
- 工作环境接近上限时（+90 ℃），应注意器件长期稳定性并考虑散热设计。
五、选型与可靠性提示
- 精度±30%意味着标称击穿电压会有较大范围波动，设计时需留有裕量以确保保护门槛可靠。
- 若需要更严格的击穿一致性或更低的剩余电压，建议对比同类TVS或压敏电阻产品的动态钳位性能和能量吸收曲线。
- 在高频或敏感信号应用中，低电容是优势；在纯功率侧浪涌防护时，可优先考察能量吸收能力与循环寿命。
六、包装与品牌信息
品牌：DOWO（东沃）；封装：1812 表面贴装；描述分类为未分类（通用瞬态浪涌保护器件）。在实际采购与替换时，请参考厂家完整数据表以获取更多电气特性曲线、冲击试验条件和可靠性数据。
如需基于具体应用（例如数据线保护、汽车电源或通讯基站）做更精确的参数匹配与PCB布局建议，可提供电路拓扑与工作条件，我会给出针对性的方案。
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