WMSIC Electronic Components

BORN S2M SMB

ModelS2M SMB
PackageSMB(DO-214AA)
BrandBORN
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN S2M SMB
Type
BORN
Minimum package
3000

Technical parameters

Electronic Component
BORN
Electronic Component
S2M SMB
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
General Purpose Diode
Electronic Component
0.197g
Electronic Component
1
Electronic Component
BM0231019408
Current
2A
Diode
Electronic Component
Current(Ir)
5uA@1kV
(Vf)
1.1V@1A
Electronic Component
55℃~+150℃
Electronic Component
3000
Voltage Rating(Vr)
1kV
Surge Current (Ifsm)
50A

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

S2M(SMB)通用整流二极管 — 产品概述

一、产品简介

S2M 是伯恩半导体(BORN)推出的一款高压通用整流二极管,采用SMB(DO-214AA)独立式表面贴装封装。该器件定位于高压整流和保护用途,具有高反向耐压、低反向泄漏和良好的浪涌承受能力,适合各类开关电源、适配器、逆变器及工业电源等场景。

二、主要电气参数

  • 型号:S2M(SMB 封装)
  • 品牌:BORN(伯恩半导体)
  • 正向压降:1.1 V @ 1 A(典型)
  • 直流反向耐压(Vr):1000 V(1 kV)
  • 整流电流(平均正向电流):2 A
  • 反向电流(Ir):5 µA @ 1 kV
  • 非重复峰值浪涌电流(Ifsm):50 A(短时浪涌承受能力)
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 封装:SMB(DO-214AA),独立式表面贴装

三、封装与机械特性

SMB(DO-214AA)封装为常用的中等功率表面贴装封装,兼顾尺寸、散热与可靠性,适合自动贴装与回流焊工艺。独立式器件便于在有限空间内进行高电压布局,且安装和更换方便。具体封装尺寸及焊盘推荐请参考厂商机械图纸并结合PCB工艺调整。

四、关键特性与优势

  • 高耐压:1000 V 的直流反向耐压满足多数高压整流和保护场合的电压要求。
  • 低反向泄漏:在1 kV 时反向电流仅约 5 µA,适合对漏电流敏感的高压应用。
  • 低正向压降:1.1 V @ 1 A 的正向压降在同类别器件中具有竞争力,有助于降低整流损耗。
  • 良好浪涌能力:50 A 的非重复峰值浪涌电流可应对短时启动或突发浪涌事件,提高系统鲁棒性。
  • 宽温度范围:-55 ℃ 至 +150 ℃ 的结温范围适应恶劣环境与高温工作需求。

五、典型应用场景

  • 开关电源(SMPS)高压整流与回收回路
  • 功率适配器、充电器的整流与保护
  • 工业电源和变频器的高压整流段
  • 逆变器、太阳能逆变及储能系统的保护元件
  • 高频电子设备中需要高压耐受与低泄漏的电路

六、热管理与可靠性建议

  • 功耗估算:正向功耗约为 P = Vf × If。例:在 1 A 时 P ≈ 1.1 W;在 2 A 连续工作时则 P ≈ 2.2 W。长期工作在高电流下需要充分考虑散热。
  • PCB 散热:建议在焊盘和周围使用足够的铜箔面积(多层板可使用内层铜通孔散热),并优化焊盘设计以降低结-环境热阻。
  • 结温控制:尽量保证工作结温远低于最大额定值(+150 ℃),并在高环境温度下对电流进行适当降额。常见做法是按照厂商给出的温升与热阻曲线进行计算与评估。
  • 浪涌与容错:Ifsm 为非重复峰值浪涌能力,适合处理短时冲击。若系统存在频繁大冲击,建议选择更高峰值或加并联/限流保护器件。

七、选型与使用注意事项

  • 确认工况电压和反向耐压余量:实际电路工作电压应低于器件额定 Vr,并留有安全裕度以应对过压峰值。
  • 考虑平均与脉冲电流:2 A 为整流平均电流,若电路包含脉冲或频繁浪涌,应参考脉冲特性并可能降额使用。
  • 注意焊接工艺:遵循焊接温度与时间限制,避免过热引起封装或内部结构损伤。
  • 老化与长期可靠性:在高温高应力工况下实施降额策略,以延长器件寿命。

八、质量与测试建议

  • 进货检验:建议对批次器件进行关键参数抽检(Vr、Vf、Ir 和封装外观)。
  • 可靠性测试:在产品开发阶段,可进行热循环、湿热、浪涌与恒定应力测试,验证在目标工况下的长期稳定性。
  • 失效分析:若出现异常升温或漏电增加,应进行失效定位,排查焊接、布局或过压/过流导致的损坏原因。

九、封装尺寸与焊接建议

  • SMB 封装适合回流焊与波峰焊工艺,推荐按厂商提供的封装及焊盘布局进行PCB设计。
  • 对于大电流使用场合,建议扩大焊盘铜箔面积并增加过孔与内层散热连接,以降低结-环境热阻并分散热量。

总结:S2M(SMB)由伯恩半导体提供,是一款面向高压整流与保护应用的通用二极管,具备 1 kV 的高反向耐压、低漏电与50 A 的短时浪涌能力。合理的热管理和选型降额可确保其在工业级电源与高压场景中的可靠工作。如需进一步的电气特性曲线、封装尺寸图或推荐焊盘,请索取厂商完整 Datasheet 以获得详细参数和测试数据。

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