WMSIC Electronic Components

LGE SS56L

ModelSS56L
PackageSMB
BrandLGE
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
LGE SS56L
Type
LGE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LGE
Electronic Component
SS56L
Electronic Component
1
Package
SMB
Electronic Component
Schottky Diode
Electronic Component
0.182g
Electronic Component
1
Electronic Component
BM0230873530
Current
5A
Diode
Electronic Component
Current(Ir)
500uA@60V
(Vf)
520mV@5A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
3000

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

SS56L(LGE 鲁光)肖特基二极管 产品概述

一、产品简介

SS56L 为 LGE(鲁光)品牌的独立式肖特基整流二极管,封装为 SMB(DO-214AA),额定整流电流 5A,直流反向耐压 60V。其在 5A 工作条件下正向压降约为 520mV,具备低正向压降和较快开关特性,适用于中功率直流整流和开关电源应用。器件允许的工作结温范围为 -55℃ 至 +150℃,并能承受非重复峰值浪涌电流 175A(Ifsm)。

二、主要电气参数

  • 类型:肖特基二极管(独立式)
  • 额定整流电流(Io):5A
  • 直流反向耐压(Vr):60V
  • 正向压降(Vf):≈520mV @ 5A
  • 反向漏电流(Ir):500μA @ 60V(常温条件下)
  • 非重复峰值浪涌电流(Ifsm):175A
  • 工作结温范围:-55℃ ~ +150℃

三、主要性能特点

  1. 低正向压降:在大电流条件下 Vf 约 0.52V,可降低整流损耗和发热,提升效率。
  2. 快速开关:肖特基结构不存在显著反向恢复,适合高频开关电源与 PWM 场景。
  3. 高浪涌承受能力:Ifsm 达 175A,短时冲击电流承受能力强,适合有浪涌负载的电路。
  4. 宽温区工作:工作结温上限 150℃,在高温环境下仍具备可靠性,但需注意漏电流随温度上升而增加。
  5. SMB 封装:机械强度好,便于手工与波峰/回流焊接,适合中功率 PCB 布局。

四、典型应用场景

  • 开关电源整流(中功率二次侧整流)
  • DC-DC 转换器的同步或非同步整流
  • 电池充放电路径与逆连接保护、反向保护电路
  • 电机驱动、电源滤波与续流二极管(freewheeling)
  • 汽车电子及工业控制中 12V/24V 系统的整流与保护(需考虑瞬态抑制)

五、选型与电路设计注意事项

  1. 温度对漏电流影响明显:反向漏电流会随结温升高显著增加,设计时需为高温工况留有余量。
  2. 散热与降额:虽然器件额定 5A,但在 PCB 上要做好散热(加宽铜箔、加热孔或散热片),并根据环境温度进行电流降额。
  3. 浪涌和峰值能量:Ifsm 能承受短时浪涌,但不宜长期以峰值电流工作,必要时考虑外置限流或使用并联/替代更大规格器件。
  4. 反向耐压裕量:60V 的反向耐压适用于大多数 12V/24V 系统,但在含有高压瞬态(如汽车负载突变)的场合应配合 TVS 或其他抑制元件。
  5. 焊接与应用温度:遵循 SMB 封装的焊接温度曲线,避免过热造成器件性能下降或可靠性问题。

六、可靠性与检测建议

  • 建议在样机阶段测试典型温度下的漏电流、Vf 随温度和电流的变化,以及在实际负载下的温升验证。
  • 做常见应力试验(热循环、振动、ESD/瞬态冲击)以评估在目标应用环境中的长期可靠性。
  • 在高温或长时间大电流工况下,定期检查焊点与封装温度,防止接触不良或过热失效。

七、结论

SS56L(LGE 鲁光)是一款面向中功率整流与开关电源应用的 5A/60V 肖特基二极管,具备低正向压降、良好浪涌承受能力和较宽的工作温度范围。合理的 PCB 散热设计和温度管理能够发挥其效率与可靠性优势,适合用于整流、续流及反向保护等常见电源电路中。

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