WMSIC Electronic Components

BORN SMFJ36A

ModelSMFJ36A
PackageSOD-123F
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 SMFJ36A
Type
BORN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
SMFJ36A
Electronic Component
1
Package
SOD-123F
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.041g
Electronic Component
1
Electronic Component
BM0264583390
Voltage
58.1V
Current(Ir)
1uA
Voltage(VBR)
44.2V
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.

SMFJ36A — 200W 单向 TVS 浪涌保护器件 产品概述

一、产品简介

SMFJ36A 是 BORN(伯恩半导体)推出的一款单向高能量瞬态电压抑制(TVS)二极管,采用 SOD-123F 小型贴片封装,专为电源端口和线路的浪涌与脉冲过压保护设计。器件在 10/1000 µs 波形下可承受高达 200W 的峰值脉冲功率,适用于需要对中高电压轨(如 24V、30V 及类似等级)实施可靠浪涌防护的场合。

二、主要参数

  • 极性:单向(单极节流)
  • 反向截止电压(Vrwm):36 V
  • 击穿电压(VBR):44.2 V(典型)
  • 钳位电压(Vcl):58.1 V(在指定脉冲条件下)
  • 峰值脉冲电流(Ipp):3.4 A @ 10/1000 µs
  • 峰值脉冲功率(Ppp):200 W @ 10/1000 µs
  • 反向泄漏电流(Ir):典型 1 µA(在 Vrwm 附近)
  • 类型:TVS 二极管
  • 品牌:BORN(伯恩半导体)
  • 封装:SOD-123F

三、工作原理与产品特性

SMFJ36A 在正常工作时以反向截止(阻断)状态工作,对系统不产生显著负载。遇到瞬态过压或冲击时,器件进入雪崩击穿区并迅速导通,将超过线路的能量钳位在约 58.1 V(钳位电压),并把能量吸收到自身中,从而保护下游元件免受高电压冲击。单向结构适合对 DC 电源轨和单向浪涌来源(如电源反接或感性负载反冲)进行保护。

器件具备以下特点:

  • 高瞬态吸收能力(200 W @10/1000 µs),适合能量较大的长脉冲浪涌。
  • 低反向泄漏,平时对系统功耗影响小。
  • SOD-123F 小封装,便于贴片工艺与空间受限电路板的布署。

四、封装与布局建议

  • 尽量将 SMFJ36A 布置在受保护线路入口附近(如电源插座、连接器处),以缩短信号路径并降低串联阻抗。
  • 引脚与被保护元件之间的走线应最短且尽量加宽,以利于浪涌电流快速导入 TVS 并减少寄生感抗。
  • SOD-123F 热阻有限,连续或重复大的脉冲会使器件升温,布局时应考虑散热空间与底层铜箔辅助散热。
  • 注意焊接工艺,遵循制造商的回流焊温度曲线,避免过热造成器件损伤。

五、典型应用场景

  • 通用电源输入保护(24V / 36V 级别)
  • 工业控制设备电源端口浪涌吸收
  • 通讯设备、网关、监控摄像头的电源防护
  • 汽车电子子系统(非严苛汽车级要求场景,实际使用时请核对车规认证)

六、使用与选型注意事项

  • 确认系统最大工作电压低于 Vrwm(36 V),并留有余量以避免频繁进入击穿区。
  • 若需要承受更高脉冲能量或重复脉冲,应参考数据表中的能量吸收曲线并考虑并联或更高额定功率器件(并联时需注意分流不均问题)。
  • 参考厂方完整规格书中的温度范围、冲击波形和寿命数据,确保在目标工况下可靠性满足要求。
  • 对于汽车或航天等高可靠性场合,需选用对应认证等级产品或通过额外测试验证。

如需更详细的电气特性曲线、热阻参数或封装尺寸,请参考 BORN 官方技术资料或联系供应商获取完整数据手册。

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