WMSIC Electronic Components

RUILON SMBJ26CA

ModelSMBJ26CA
PackageDO-214AA(SMB)
BrandRUILON
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
RUILON SMBJ26CA
Type
RUILON
Minimum package
3000

Technical parameters

Electronic Component
RUILON
Electronic Component
SMBJ26CA
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.232g
Electronic Component
1
Electronic Component
BM0227699986
Operating Temperature
55℃~+150℃
Voltage
42.1V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
33.2V
Electronic Component
3000

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

SMBJ26CA 产品概述

一、产品简介

SMBJ26CA 是 RUILON(瑞隆源) 出品的一款双向瞬态电压抑制器(TVS),封装为 DO-214AA(SMB)。该器件专为抑制瞬态过压、吸收浪涌能量设计,适用于对 ESD、EFT 等电磁瞬变有防护需求的电源与信号线路。器件符合 IEC 61000-4-2(静电放电)和 IEC 61000-4-4(电快速瞬变)等电磁兼容测试标准。

二、主要参数一览

  • 钳位电压(Vclamp):42.1 V
  • 反向击穿电压(Vbr):33.2 V
  • 反向截止电压 / 额定工作电压(Vrwm):26 V
  • 峰值脉冲功率(Ppp,10/1000μs):600 W
  • 峰值脉冲电流(Ipp):14.2 A
  • 反向漏电流(Ir):1 μA(典型条件下)
  • 极性:双向(无极性)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:DO-214AA(SMB)

三、性能解读

SMBJ26CA 的 Vrwm = 26 V 表明其适用于 24 V 及附近电压系统作为常态电压保护器件;当系统出现高能瞬态(如 10/1000μs 浪涌)时,器件能承受 600 W 的瞬态功率并限制电压在约 42.1 V,从而保护后级器件免受过压损坏。双向结构适合交流或无极性场合,对正负极均能提供对称保护。低漏电(1 μA)有利于低功耗应用和不影响精密测量。

四、典型应用场景

  • 24V 工业控制电源防护(PLC、驱动器、传感器供电)
  • 通信与接口保护(供电线、I/O 接口)
  • 仪器仪表、测控设备的输入端防护
  • 需满足 IEC ESD/EFT 抗扰度的系统前端保护

五、设计与使用建议

  • 选型时以系统最大连续工作电压不超过 Vrwm(26 V)为原则。
  • 将 TVS 尽量靠近可能受扰的接头或外部入线处布置,缩短回路面积以降低寄生电感。
  • 对于高能量冲击,检验 PCB 散热与焊点强度,以保证在浪涌事件中器件能正确吸收能量并有效散热。
  • 双向器件无极性,安装时无需方向区分,但仍需参考器件封装标识确保焊接可靠。

六、安装与可靠性注意事项

  • 遵循制造商推荐的焊接工艺和温度曲线,避免超过器件允许的最大回流温度。
  • 储存与装配环境应防潮、防静电;生产线需做好 ESD 防护。
  • 系统设计中应考虑到 TVS 在多次大能量冲击后的老化问题,必要时预留更换或冗余保护方案。

七、选型与替代

如需替代或通用替换,关注关键参数匹配:Vrwm ≈ 26 V、Vbr ≈ 33 V、Vclamp ≤ 42 V(在相同 Ipp 条件下)、Ppp ≥ 600 W、双向结构及工作温度范围。选择时建议对比厂商器件的测试曲线与封装管脚兼容性。

八、总结

SMBJ26CA 凭借 600 W 的瞬态吸收能力、较低的钳位电压和宽温度范围,适合对 24V 级电源与接口进行可靠的瞬态抑制。合理布局、恰当的热管理与按规范的焊接工艺可确保其在实际产品中发挥稳定保护作用。若需更详细的电气特性曲线或封装尺寸与回流焊建议,请参考 RUILON 提供的规格书。

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