WMSIC Electronic Components

Brightking 820KD07

Model820KD07
PackageElectronic Component
BrandBrightking
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
Brightking 820KD07
Type
BRIGHTKING
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
820KD07
Electronic Component
1
Package
Electronic Component
Electronic Component
Varistor Resistor
Electronic Component
10J
Electronic Component
0.4g
Electronic Component
1
Varistor Voltage
82V
Electronic Component
BM0257689055
Voltage
135V
Static Power
250mW
Static Capacitor
600pF@1kHz
Operating Voltage(AC)
50V
Operating Voltage(DC)
65V

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

820KD07 产品概述

一、产品简介

820KD07 是 Brightking(台湾君耀)出品的一款径向引线型金属氧化物压敏电阻(MOV),器件直径约7 mm,标称压敏电压 82 V ±10%。该型号为低压直流/交流系统提供瞬态过电压保护,适用于工业控制、电源模块、通信设备及48 V 类系统的浪涌抑制场合。

二、主要电气参数

  • 压敏电压(Vnom):82 V ±10%
  • 钳位电压(典型):135 V(在峰值浪涌条件下)
  • 工作电压(DC):65 V
  • 工作电压(AC):50 V
  • 峰值浪涌电流(Ipeak):1.75 kA(脉冲条件,示例波形为8/20 μs)
  • 吸收能量:10 J(单次脉冲能量等级)
  • 静态电容:600 pF @ 1 kHz(对高速信号有影响,应注意)
  • 持续功耗(或直流功耗):约 250 mW
  • 封装形式:径向引线,盘形(7 mm)
  • 品牌/产地:Brightking(台湾君耀)

三、性能特点

  • 小体积、高能量密度:7 mm 小盘型设计,适合空间受限的电路板布局。
  • 良好的瞬态吸收能力:峰值浪涌电流可达 1.75 kA,单次吸收能量约 10 J,可有效钳位短时过电压。
  • 低工作电容:600 pF 在一定程度上影响高速信号路径,适合电源线和低速控制信号的保护场合。
  • 低静态功耗:长期承受直流/工作电压时损耗小,适合48 V 等常见低压系统。

四、典型应用场景

  • 48 V 通信电源及基站室内配线防护。
  • 工业控制与自动化设备的直流母线防雷浪涌。
  • 开关电源、适配器输出端的过压保护。
  • LED 驱动器、仪器仪表等低压电源系统的瞬态抑制。
    (注:因静态电容较大,不建议用于高速以太网或高速数据链路的直接保护。)

五、安装与使用注意事项

  • 选型应确保器件的工作电压高于系统正常最大电压:本件适合直流不超过 65 V、交流不超过 50 V 的系统。
  • 浪涌次数与能量累积:10 J 为单次脉冲能量,频繁或多次高能浪涌会降低器件寿命,应按系统寿命要求适当冗余或并联/采用更高能量等级产品。
  • 热管理与散热:在高温或连续受扰条件下应考虑散热与间距,避免长期超出额定持续功耗(250 mW)。
  • 焊接工艺:遵循厂商推荐的波峰或回流焊曲线,避免长时间高温以免影响压敏材料特性。
  • 外观与引脚间距:径向引线便于插装及手工焊接,注意牢固固定以避免机械应力。

六、可靠性与选型建议

  • 若保护点靠近电源输入或可能承受多次高能脉冲,建议选用能量等级更高或并联多个压敏电阻以分担能量。
  • 对于要求低电容的信号线保护,应选用专门为通信/数据线设计的低电容防护元件,避免 600 pF 带来的信号畸变。
  • 设计时应预留足够安全裕度:钳位电压 135 V 在浪涌工况下可能出现峰值,确保被保护器件能承受该电压。

七、包装与订购信息

  • 型号:820KD07
  • 品牌:Brightking(台湾君耀)
  • 封装:径向引线,7 mm 盘型
  • 订购时请确认压敏电压公差(±10%)、单次能量需求及浪涌波形(如 8/20 μs)以便匹配应用场景。若需样品、批量报价或详细浪涌测试曲线,请联系供应商获取完整数据手册及可靠性测试报告。

如需我帮您对照具体电路(例如 48 V 通信电源或 LED 驱动输入)进行选型验证或计算钳位/能量分配,请提供系统最大工作电压、可能的浪涌源及期望寿命等信息。

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