WMSIC Electronic Components

DOWO ES2DA

ModelES2DA
PackageSMA
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 ES2DA
Type
DOWO
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
ES2DA
Electronic Component
1
Package
SMA
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.127g
Electronic Component
1
Electronic Component
BM0264801998
Current
2A
Diode
1
Current(Ir)
10uA
(Vf)
950mV@2A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000

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

ES2DA 产品概述

一、产品简介

ES2DA 是 DOWO(东沃) 出品的一款高可靠性、超快恢复整流二极管,采用玻璃钝化结芯片并封装于常用的 SMA 外壳。该器件专为高效率开关电源、电动工具驱动、电池充电器及各类需要快速恢复和低反向漏电的直流整流与续流场合而设计。器件支持自动贴片装配(SMT),同时符合 RoHS 无卤环保要求,适合工业级到消费类电子的广泛应用。

二、主要电气参数

  • 直流反向耐压(Vr):300 V
  • 正向压降(Vf):约 950 mV @ If = 2 A
  • 额定整流电流(If):2 A(连续)
  • 非重复峰值浪涌电流(Ifsm):50 A
  • 反向恢复时间(Trr):35 ns(超快恢复)
  • 反向电流(Ir):最大 10 μA(典型条件)
  • 工作结温范围:-55 ℃ ~ +150 ℃

这些参数使 ES2DA 在高频开关环境中既能承受较高的电压应力,又保持较低的开关损耗与较小的反向漏电。

三、关键特性与优点

  1. 玻璃钝化结芯片:提升结面稳定性与抗湿热性能,增强长期可靠性。
  2. 超快恢复时间(Trr≈35 ns):显著减少开关过程的能量损耗,降低 EMI 和瞬态应力,适合高开关频率的电源设计。
  3. 低正向压降(~0.95 V @ 2 A):在导通状态下减少功耗与发热,提高转换效率。
  4. 优良的浪涌承受能力(Ifsm 50 A):在突发冲击或启动瞬态下具备较好鲁棒性。
  5. 适配自动贴装(SMA封装):兼容主流SMT装配线,提高生产效率与良率。
  6. 内置应力消除结构:降低热机械循环造成的应力集中,延长器件寿命。
  7. RoHS 无卤合规:满足环境与安全的合规要求。

四、典型应用场景

  • 开关电源(SMPS)整流与续流二极管
  • AC/DC 适配器与充电器输出整流
  • LED 驱动电源
  • DC-DC 转换器快恢复整流
  • 逆变器与电机驱动中的续流保护
  • 保护电路、反向保护、瞬态钳位与续流回路

在这些场合中,ES2DA 的超快恢复与低损耗特性能有效提升系统总体效率并减小散热设计压力。

五、封装与机械特性

  • 封装类型:SMA(符合自动贴装工艺)
  • 标准化尺寸与焊盘布局,方便在常见 PCB 设计中替换与升级。
  • 封装材料与工艺兼顾导热与机械强度,适应工业环境下的振动与温变要求。

在布板时建议预留适当的焊盘尺寸与散热铜箔,以确保在 2 A 连续工作时热量能够有效传导并散出,延长结温寿命。

六、可靠性与焊接建议

  • 工作结温范围宽(-55 ℃ ~ +150 ℃),适合严苛环境下长期工作。
  • 玻璃钝化与应力消除结构提升了热循环与湿热试验中的稳定性。
  • 推荐按照常见的无铅回流焊曲线进行焊接,避免超温或长时间高温暴露;在批量生产中,应根据 PCB 与组件热容调整回流工艺。这类具体工艺参数可参考 DOWO 官方应用手册或与供应商工程支持确认。

七、封装型号与选型提示

型号:ES2DA(SMA 封装)
选型时请关注工作电压余量(建议实际使用电压远低于 Vr,以提高可靠性)、连续电流与散热条件(If=2 A 连续),以及开关频率对反向恢复时间(Trr)引发的开关损耗影响。对于更高电流或更低 Vf 的需求,可咨询同系列或其它封装产品以匹配系统要求。

八、合规与质量保证

ES2DA 符合 RoHS 无卤环保标准,采用经过可靠性验证的玻璃钝化工艺与应力消除结构,适配自动化生产线。购买时建议从授权分销或正规渠道获取,以保证产品真伪与长期可追溯的质量支持。

如需更详细的电气特性曲线(Vf-Vs-If、Ir 随温度变化、Trr 测试条件)、封装尺寸图或可靠性测试报告,我可以帮助整理并提供进一步的技术资料。

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