WMSIC Electronic Components

Jingdao Microelectronics SMF36CA

ModelSMF36CA
PackageSOD-123FL
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 SMF36CA
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMF36CA
Electronic Component
1
Package
SOD-123FL
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0227663769
Operating Temperature
55℃~+150℃
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.

SMF36CA 产品概述

一、产品简介

SMF36CA 是晶导微电子推出的一款瞬态电压抑制器(TVS 二极管),封装为 SOD-123FL。器件设计用于吸收瞬态浪涌能量,保护敏感电子元件免受电压冲击和电气瞬变损坏。其典型电气参数包括反向工作电压 Vrwm = 36V、击穿电压 Vbr ≈ 44.2V、钳位电压 Vc ≈ 58.1V,适用于中低压直流系统的浪涌保护。

二、主要电气参数

  • 钳位电压(Vc):58.1 V(在 10/1000 μs 波形工况下)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 击穿电压(Vbr):44.2 V
  • 反向截止电压 Vrwm:36 V
  • 峰值脉冲功率 Ppp:200 W(10/1000 μs)
  • 峰值脉冲电流 Ipp:3.4 A(10/1000 μs)
  • 反向电流 Ir:1 μA(在 Vrwm 条件下)
  • 器件类型:TVS 二极管,封装 SOD-123FL

三、特点与优势

  • 高能量吸收能力:在 10/1000 μs 浪涌波形下可承受最高 200 W 的瞬态能量,适合典型的工业级浪涌事件。
  • 低漏电流:在工作电压下反向电流仅 1 μA,有利于对敏感电路保持低功耗与稳定性。
  • 宽温度范围:-55 ℃ 到 +150 ℃,适应恶劣环境与高温工作场景。
  • 紧凑封装:SOD-123FL 体积小、焊接方便,便于在空间受限的 PCB 上布局。

四、典型应用场景

  • 工业控制与自动化设备的电源输入与信号口过压保护(24V/36V 系统)。
  • 电池供电设备与模块化电源防护,用于吸收开机/关机、负载切换产生的瞬态。
  • 通信接口与继电器驱动电路的浪涌抑制,保护后端敏感器件。
  • 其他需要在中低压直流总线上实现瞬态抑制的场合。

五、封装与焊接建议

SOD-123FL 小型化封装便于自动化贴装。推荐在 PCB 设计时遵循厂方推荐的焊盘尺寸与热阻控制,尽量缩短从保护器件到被保护节点的导线长度,以降低寄生感抗并提升吸收效率。若需更高的浪涌能力,可考虑并联多只或选择更大封装的同系列器件,但应注意热均衡和匹配问题。

六、使用注意事项

  • 浪涌能量不可超过器件额定 Ppp(参考 10/1000 μs 标准波形),重复或频繁的大能量冲击会降低器件寿命。
  • 对于是否单向或双向保护的需求,请以厂方完整数据手册中极性说明为准,避免接错极性造成失效。
  • 在高温环境中长期工作时,需考虑功率与结温的热降额,保证结温不超过额定上限。
  • 对于关键系统应配合熔断、限流或串联阻抗等保护措施共同使用,以获取更可靠的系统级防护。

七、结语

SMF36CA 以其 36V 的工作电压档位、58.1V 的钳位能力与 200W 的瞬态吸收能力,适合对中低压直流系统进行有效浪涌保护。结合小型 SOD-123FL 封装与宽温区间,本型号在工业控制、电源防护与接口保护等领域具有良好适用性。选型时建议参考晶导微电子的完整数据手册和应用说明,以确保在目标应用中达到最佳保护效果。

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