WMSIC Electronic Components

CJ SS56

ModelSS56
PackageSMAG
BrandCJ
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
CJ SS56
Type
CJ
Minimum package
5000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
SS56
Electronic Component
1
Package
SMAG
Electronic Component
Schottky Diode
Electronic Component
0.091g
Electronic Component
1
Electronic Component
BM0257713195
Current
5A
Diode
1
Current(Ir)
200uA@60V
(Vf)
850mV@5A
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.

SS56(CJ 长晶)60V 5A 肖特基二极管 — 产品概述

一、概述与核心参数

SS56 为江苏长电(CJ/长晶)生产的肖特基整流二极管,采用SMAG 表面贴装封装,面向中大电流、低压降整流和开关电源应用。主要电气参数如下:

  • 正向压降(Vf):0.85 V @ 5 A
  • 直流反向耐压(Vr):60 V
  • 额定整流电流:5 A(直流)
  • 反向漏电流(Ir):200 μA @ 60 V
  • 非重复峰值浪涌电流(Ifsm):150 A(一次性浪涌能力)
  • 工作结温范围:-55 ℃ ~ +150 ℃

二、产品特点与优势

  • 低正向压降:0.85 V @5 A 的典型 Vf 能显著降低整流损耗,提升转换效率,特别在高频 DC-DC、降压模块和续流路径中优势明显。
  • 快速恢复与低结电容:肖特基结构本征具备快速响应特性,适合开关频率较高的电源场合。
  • 良好浪涌承受力:150 A 的非重复峰值浪涌能力可应对启动瞬态或短时突波,但不等同于长期重复冲击,应遵循数据手册的浪涌准则。
  • 宽温度范围:工作结温支持 -55 ℃ 到 +150 ℃,适应工业级和较苛刻环境,但需关注高温时反向漏流上升及热耗散问题。
  • 表面贴装(SMAG):便于高速贴片生产与自动化组装,适配紧凑 PCB 布局需求。

三、典型应用场景

  • 开关电源(SMPS)整流与续流二极管
  • DC-DC 降压/升压模块的输出整流
  • 汽车电源及电源管理(需按车规验证)
  • 逆向保护、电池充放电路径
  • 电机驱动、LED 驱动和功率整流场合(需考虑热耗)

四、热管理与使用建议

  • 计算结温与耗散:在额定 5 A 连续工作时,约产生 P = Vf × I ≈ 0.85 V × 5 A ≈ 4.25 W 的功率耗散。该功率需通过器件到 PCB 的热阻和铜箔散热路径导出,建议在 PCB 上增加散热铜面积与过孔(热盲孔)以降低结温。
  • 漏电流随温度上升显著增加,长时间在高温下工作会增加功耗并影响可靠性,设计时应留有热裕度并进行热仿真或实测。
  • 对于频繁脉冲或感性负载,考虑并联 RC 吸收或合适的续流安排,避免反复高能量冲击超出 Ifsm 限值。

五、选型与替代

SS56 适合需要 60 V 等级、5 A 电流且要求较低 Vf 的场合。若需更低正向压降或更高电压/电流等级,可在同类肖特基系列中对比 Vf、Ir、Ifsm 及封装热阻;对汽车与更高可靠性要求,应核实是否符合相关车规认证。

六、封装与注意事项

SMAG 为紧凑表贴封装,便于高速贴装,但相对散热能力受限,建议在设计时优化 PCB 散热并遵循制造商的焊接、回流曲线及存储防潮规范。使用前请参考完整数据手册以获取封装引脚、推荐焊盘尺寸及详细电气/热参数。

总结:SS56(CJ)是一款面向中功率、高效率整流与续流应用的 60 V/5 A 肖特基二极管,具备低压降与良好浪涌能力。合理的 PCB 散热和温度控制是发挥其性能与保证可靠性的关键。若需进一步的封装图、热阻或波形测试建议,可提供具体应用场景以便给出更精确的工程建议。

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