WMSIC Electronic Components

TWGMC SS56(SMB) Schottky Diode SS56

ModelSS56(SMB)
PackageSMB
BrandTWGMC
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
TWGMC SS56(SMB)
Type
TWGMC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
SS56(SMB)
Electronic Component
1
Package
SMB
Electronic Component
Schottky Diode
Electronic Component
0.18g
Electronic Component
1
Electronic Component
BM0265082573
Current
5A
Diode
Electronic Component
Current(Ir)
300uA
(Vf)
700mV@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.

SS56(SMB封装)快恢复/整流二极管产品概述

一、产品核心身份与品牌背景

SS56是台湾迪嘉(TWGMC)推出的表面贴装式整流二极管,采用SMB封装(行业代码DO-214AA),属于其功率整流器件系列的核心型号。TWGMC作为台湾本土专注中小功率半导体的厂商,以参数一致性好、可靠性稳定为特点,其器件广泛覆盖消费电子、工业控制及汽车辅助电路。SS56的命名逻辑清晰:“SS”代表快恢复/整流二极管,“56”对应核心参数——5A额定整流电流、60V直流反向耐压,是针对小体积、高效率整流需求设计的基础功率器件。

二、关键电性能参数详解

SS56的参数针对实际应用做了优化,核心指标符合工业标准且实用性强:

  • 正向导通特性:5A额定电流下正向压降(Vf)仅700mV,较普通硅整流管(典型800mV@5A)降低12.5%,导通损耗显著减小,可降低电路发热、提升效率;
  • 反向阻断能力:直流反向耐压(Vr)达60V,满足低压电源、电池电路的反向阻断需求;额定结温下反向漏电流(Ir)仅300μA,反向功耗低、阻断可靠性高;
  • 浪涌耐受能力:非重复峰值浪涌电流(Ifsm)达150A(8.3ms正弦波),可应对开机瞬间、负载突变等场景的大电流冲击,避免器件损坏;
  • 宽温工作范围:工作结温覆盖-55℃至+150℃,满足工业级环境(低温车间、高温户外)及消费电子的温度波动需求。

三、封装与物理特性说明

SS56采用SMB封装,是小功率表面贴装器件的主流方案,具有以下优势:

  • 尺寸紧凑:典型尺寸约3.5mm(长)×2.5mm(宽)×1.5mm(高),无引脚设计大幅节省PCB空间,适合高密度电路(如便携式设备、小型电源);
  • 焊接兼容性:支持回流焊、波峰焊等自动化工艺,焊接峰值温度≤260℃(持续≤30秒),易匹配量产流程;
  • 封装可靠性:环氧树脂封装绝缘性好、耐机械应力强,可保护内部芯片,适应振动、冲击环境。

四、典型应用场景解析

SS56的参数特性使其适配多种低压小功率整流场景,核心应用包括:

  1. 开关电源输出整流:如5V/5A适配器、机顶盒电源、LED驱动的次级整流,低Vf减少电源发热,提升转换效率;
  2. 电池充电电路:充电宝、电动牙刷等便携式设备的充电回路,150A浪涌能力应对充电初始大电流冲击;
  3. 工业控制辅助电路:PLC模块、传感器节点的电源整流,宽温范围适应工业现场温度波动;
  4. 汽车电子辅助电路:车载充电器、LED照明的整流(部分批次满足AEC-Q101),应对车载温度变化;
  5. 消费电子接口:USB集线器、智能插座的电源整流,SMB封装适配小型化设计。

五、可靠性与环境适应性优势

SS56的设计聚焦可靠性,核心优势明显:

  • 低损耗高热稳定性:700mV低Vf减少导通发热,150℃最大结温确保连续工作稳定,避免热失效;
  • 强浪涌抵御:150A非重复浪涌可抵御雷击、负载短路后的瞬间冲击,降低故障率;
  • 宽温可靠性:-55℃至+150℃结温范围覆盖多数场景,无需额外散热即可稳定工作;
  • 参数一致性:TWGMC工艺确保批量器件参数偏差小,电路性能稳定,减少调试难度。

六、选型与替换参考

若需替换或扩展应用,可参考以下原则:

  1. 同参数替换:其他品牌SMB封装SS56可直接替换,如ON Semiconductor 1N5822、NXP US56,需确认焊盘匹配;
  2. 不同封装兼容:轴向封装(DO-201AD)SS56可替换,但需调整焊盘;
  3. 参数扩展:需更高耐压选SS10(100V),需更低Vf选肖特基SB560(但漏电流稍大);
  4. 应用注意:焊接避免超温,结温不超150℃,负载近5A时加宽PCB铜箔散热。

SS56作为性价比高、参数均衡的SMB整流二极管,是消费电子、工业控制等领域的常用基础器件,可满足多数低压小功率整流需求。

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