WMSIC Electronic Components

Slkor ES1D

ModelES1D
PackageSMA(DO-214AC)
BrandSLKOR
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
Slkor ES1D
Type
SLKOR
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SLKOR
Electronic Component
ES1D
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.095g
Electronic Component
1
Electronic Component
BM0226546083
Current
1A
Current(Ir)
5uA@200V
(Vf)
950mV@1A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
2000
Voltage Rating(Vr)
200V

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

ES1D 快恢复高效二极管 — 产品概述

一、核心参数速览

  • 型号:ES1D(品牌:Slkor / 萨科微)
  • 封装:SMA (DO-214AC)
  • 额定反向耐压(Vr):200 V
  • 正向压降(Vf):950 mV @ 1 A
  • 整流电流(Io):1 A(连续)
  • 非重复峰值浪涌电流(Ifsm):30 A(瞬态)
  • 反向电流(Ir):5 µA @ 200 V
  • 反向恢复时间(Trr):35 ns
  • 工作结温(Tj):-55 ℃ ~ +150 ℃

二、产品简介与主要特性

ES1D 是 Slkor(萨科微)推出的一款快恢复型整流二极管,针对开关电源与高效率整流场景优化。其主要特性包括:

  • 快速恢复(Trr ≈ 35 ns),在开关切换瞬态中显著减少反向恢复引起的功耗与电磁干扰(EMI)。
  • 中等正向压降(约0.95 V @1A),在1 A等级负载下保持较低导通损耗。
  • 200 V 的反向耐压与较低的反向泄漏(5 µA @200 V),适合中高压直流/开关电源环境。
  • SMA 封装便于表面贴装与自动化焊接,适用于空间受限的中小功率模块。

三、典型应用场景

ES1D 适用于需要兼顾开关速度与耐压能力的中小功率整流场合,例如:

  • 开关电源(SMPS)的输出整流与续流二极管;
  • 反激/正激/同步整流前端的保护或备份整流;
  • 电机驱动与步进驱动的续流/钳位电路;
  • 电池充电器、适配器、LED 驱动器等需要快速恢复和较低漏电的应用;
  • 极性保护、电源切换与一般用途整流。

四、热管理与封装注意点

  • 功率估算:在1 A 连续整流条件下,导通损耗约为 P ≈ Vf × If ≈ 0.95 W(忽略温度导致的Vf变化)。实际结温上升取决于器件的热阻(RθJA)和 PCB 的散热设计,应参照完整数据手册进行热仿真与留有裕量。
  • 封装与装配:SMA (DO-214AC) 为常用表贴封装,焊接兼容常见回流工艺。建议按 PCB 制造商和焊膏供应商的推荐回流曲线执行,避免超过器件的最高结温。
  • PCB 布局:为降低结温并提升可靠性,应在焊盘下方和周围提供足够铜面积并可接地或电源平面做散热,必要时采用过孔导热到背面散热层。

五、选型建议与对比考量

  • 若应用对导通损耗极为敏感(尤其在低压大电流场合),可以优先考虑肖特基二极管以获得更低的 Vf,但肖特基在高电压下漏电较大且耐压受限;ES1D 在200 V 耐压下保持较低反向泄漏,是高压场合的折衷选择。
  • 对于高频、高效能开关电源,ES1D 的 Trr=35 ns 能有效降低开关损耗与尖峰,但在非常高频(数百 kHz 以上)或要求极低开关损耗时,需评估是否选用更快恢复时间或专用快速肖特基/同步整流方案。
  • 浪涌能力 Ifsm=30 A 提供短时间的入电浪涌保护,但不是连续过流能力;选型时应考虑系统中的浪涌幅度与持续时间。

六、可靠性与使用建议

  • 浪涌与保护:Ifsm 为非重复峰值浪涌能力,仅用于短脉冲(如开机浪涌)保护。长期过载或反复大浪涌会损伤器件,应配合保险丝、限流电阻或软启动电路。
  • 温度与寿命:工作结温范围宽(-55~+150 ℃),但长期在高温下会加速失效。如长期在高温环境工作,应做热管理与必要的降额设计。
  • 焊接与存储:建议遵循厂家焊接与储存说明,避免超出回流温度与潮湿敏感条件;如为敏感批次,应进行适当的干燥处理。
  • 电磁兼容(EMC):快恢复二极管在开关瞬态可能产生较短、陡的电流/电压变化,应配合缓冲网络(RC、TVS)与合理的布局抑制尖峰与 EMI。

总结:ES1D(Slkor)是一款面向中小功率、高耐压且需快速恢复性能的整流二极管,适合多数开关电源、续流与保护场景。在选型时应综合考虑导通损耗、反向恢复、耐压与系统散热,必要时参考完整数据手册与实际应用验证,以实现可靠且高效的电源设计。

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