WMSIC Electronic Components

Jingdao Microelectronics S1M

ModelS1M
PackageSMA(DO-214AC)
BrandElectronic
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
Electronic S1M
Type
Jingdao Microelectronics
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
S1M
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
General Purpose Diode
Electronic Component
0.119g
Electronic Component
1
Electronic Component
BM0264086077
Current
1A
Diode
Electronic Component
Current(Ir)
5uA@1000V
(Vf)
1.1V@1A
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.

S1M通用整流二极管产品概述

一、产品基本定位与核心参数

S1M是晶导微电子推出的通用型独立式整流二极管,采用SMA(DO-214AC)贴片封装,专为1A级小功率直流整流场景设计,核心参数匹配常规电子设备的电源转换需求。其关键参数可快速概括为:

  • 最大整流电流(平均):1A
  • 直流反向耐压(峰值):1kV
  • 正向压降:1.1V@1A(导通损耗适中)
  • 反向漏电流:5μA@1000V(反向特性优异)
  • 非重复峰值浪涌电流:30A(抗瞬间过流能力)
  • 工作结温范围:-55℃~+150℃(宽温适应)

二、关键性能指标详解

1. 正向导通特性

在1A额定整流电流下,正向压降稳定在1.1V,既避免了过高压降导致的导通损耗(适合低功耗场景),又保证了足够的导通可靠性——连续工作时的功率损耗约1.1W,可通过常规PCB铜箔实现有效散热。

2. 反向耐压与漏电流

直流反向耐压达1kV,可覆盖常规高压辅助电源、部分工业控制电路的反向阻断需求;反向漏电流仅5μA@1000V,远低于同类器件平均水平(通常10μA以上),能减少反向功耗,提升电路在待机状态下的稳定性。

3. 浪涌抗扰能力

非重复峰值浪涌电流(Ifsm)为30A,可有效应对电源启动瞬间的脉冲电流、负载突变(如LED灯突然全亮)等异常工况,降低器件因过流损坏的风险。

4. 宽温适应性

工作结温范围覆盖-55℃至+150℃,符合工业级器件标准,可在高低温环境(如户外设备、车载辅助电路)中稳定工作,无需额外散热措施即可满足常规场景需求。

三、封装与可靠性设计

S1M采用SMA(DO-214AC)贴片封装,具有以下核心优势:

  • 体积小巧:封装尺寸仅约3.8mm×2.5mm×1.5mm,适合小型化电子设备(如手机充电器、便携式电源)的高密度布局;
  • 散热优化:虽为小封装,但结合150℃结温上限,可满足1A连续电流下的散热需求(建议配合≥10mm²的PCB铜箔增强散热);
  • 工艺可靠:晶导微电子采用成熟的芯片设计与封装工艺,批量生产中参数离散性≤5%,保证器件一致性。

四、典型应用场景

S1M因参数均衡、体积小巧,广泛应用于以下场景:

1. 消费电子电源

手机、平板、蓝牙耳机等小型设备的电源适配器整流(将交流220V转换为低压直流的前级整流);

2. LED驱动电源

小功率LED台灯、灯带的辅助整流电路(1A电流满足5-10颗LED串联的功率需求);

3. 家电控制板

洗衣机、空调、微波炉等家电的辅助电源(如待机电源、传感器供电电路);

4. 工业控制电路

小型PLC、传感器模块的低压直流电源整流(宽温特性适应工业环境的温度波动);

5. 车载辅助电路

汽车中控、仪表盘的小功率辅助电源(需应对车载-40℃~85℃的温度范围)。

五、选型与品牌价值

作为晶导微电子的主流整流器件,S1M具有以下选型优势:

  • 参数匹配性:1A电流、1kV耐压覆盖80%以上小功率整流场景,无需过度选型(避免成本浪费);
  • 国产替代优势:性能接近进口同类器件(如1N4007贴片版),但供货更稳定、成本降低15%-20%,适合批量生产;
  • 可靠性保障:产品通过高温存储(150℃/1000h)、温度循环(-55℃~150℃/500次)等可靠性测试,满足工业级应用要求。

S1M凭借均衡的性能、紧凑的封装与稳定的可靠性,成为小功率整流场景的高性价比选型,可广泛替代进口器件,降低终端产品成本。

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