WMSIC Electronic Components

JDTfuse JED323-3.3V-LC JED323

ModelJED323-3.3V-LC
PackageSOD-323
BrandJDTfuse
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
JDTfuse JED323-3.3V-LC
Type
JDTFUSE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JDTFUSE
Electronic Component
JED323-3.3V-LC
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.037g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1pF
Electronic Component
BM0264730583
Operating Temperature
55℃~+125℃
Voltage
16V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2

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

JED323-3.3V-LC 产品概述

一、产品简介

JED323-3.3V-LC 是集电通(JDTfuse)推出的一款单路双向瞬态抑制器(TVS 二极管),采用 SOD-323 小体积封装,专为 3.3V 系统提供 ESD 和浪涌保护。器件品质稳定、性价比高,适用于通信接口、数据总线、传感器和各类低压数字电路的瞬态过压防护。

二、主要电气参数

  • 极性:双向(bi‑directional),无极性限制,适合交流或双向数据线保护
  • 反向截止电压 Vrwm:3.3V(适配 3.3V 电源或信号线)
  • 击穿电压 VBR:约 3.3V(在规定电流下测得)
  • 钳位电压:16V(在峰值脉冲条件下典型钳位)
  • 峰值脉冲电流 Ipp:21A(器件能承受的瞬态脉冲电流)
  • 峰值脉冲功率 Ppp:340W(短时能量吸收能力)
  • 反向电流 Ir:≤200nA(在 Vrwm 条件下的漏电流)
  • 结电容 Cj:約 1pF(低电容设计,适合高速信号)
  • 通道数:单路
  • 工作温度:-55℃ ~ +125℃
  • 认证/防护等级:符合 IEC 61000-4-5(浪涌)与 IEC 61000-4-2(静电放电)测试要求

三、关键特性与优势

  • 小体积封装:SOD-323 占板面积小,便于高密度 PCB 布局。
  • 低电容(1pF):对高速数据与高速接口影响小,适合 I2C、UART、SPI、HDMI 等敏感线路。
  • 双向保护:无需考虑极性,适用于双向信号线和交流耦合场合。
  • 高能量吸收能力:21A 峰值电流与 340W 峰值功率,能有效吸收瞬态浪涌与静电脉冲。
  • 低漏电流:200nA 的低反向电流有助于降低系统静态功耗,适用于低功耗设计。
  • 品质与成本平衡:适合批量商业化应用,可靠性与性价比兼顾。

四、典型应用场景

  • 3.3V 数字接口保护(MCU 引脚、FPGA IO)
  • USB、Ethernet、串口和高频信号线的 ESD/浪涌防护
  • 模拟与测量前端保护(传感器信号输入)
  • 工业控制、消费电子与通信设备的输入输出端口防护

五、封装与布局建议

  • 建议将 JED323-3.3V-LC 放置在被保护引脚与接地之间,越靠近连接器或外部引线越好,以缩短回路电感并提高防护效果。
  • 对于双向器件,两端对称焊接,接地良好且尽量使用宽铜箔过孔引至地平面以增强散热和浪涌回流通路。
  • 推荐遵循标准无铅回流焊工艺,遵守 JEDEC/ J‑STD-020 温度曲线,避免超过器件焊接限制温度。

六、可靠性与使用注意事项

  • 器件在规定工作温度范围内保证性能稳定(-55℃~+125℃)。
  • 钳位电压受测试条件和 PCB 回路电阻/电感影响,实际应用中应留有裕量。
  • 对于高频或超高速差分线,应评估器件电容对信号完整性的影响;本器件 1pF 的低电容设计可最大限度减小影响。
  • 如需更高能量吸收能力或多通道保护,可考虑并联或选型更高规格的 TVS 器件,但需关注均流与热管理。

七、选型与采购提示

  • 型号:JED323-3.3V-LC,品牌:JDTfuse(集电通),封装:SOD-323。
  • 在批量采购前建议索取样品并在目标系统中进行实际 ESD/浪涌和信号完整性验证。
  • 如需 RoHS、REACH 或其它认证文件,请与供应商联系获取相应资料。

JED323-3.3V-LC 以其小体积、低电容与良好的瞬态吸收能力,为 3.3V 系统提供经济可靠的保护方案,是对抗静电放电与浪涌冲击的实用选择。

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