WMSIC Electronic Components

Brightking 221KD07J

Model221KD07J
PackageThrough-hole
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking 221KD07J
Type
BRIGHTKING
Minimum package
1000 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
221KD07J
Electronic Component
1
Package
Through-hole
Electronic Component
Varistor Resistor
Electronic Component
19J
Electronic Component
0.527g
Electronic Component
1
Varistor Voltage
198V~242V
Electronic Component
BM0265147982
Voltage
360V
Static Power
250mW
Static Capacitor
230pF@1kHz
Operating Voltage(AC)
140V
Operating Voltage(DC)
180V

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

Brightking(君耀)221KD07J 压敏电阻产品概述

Brightking(台湾君耀)作为国内过压防护器件的主流供应商,其221KD07J型号径向引线压敏电阻,针对中高压电路的瞬态浪涌冲击防护设计,具备稳定的电气特性与工业级可靠性,广泛适配电源、工业控制等领域的防护需求。

一、产品核心定位与基础属性

221KD07J属于氧化锌(ZnO)压敏电阻,采用径向双引线封装,核心作用是在电路遭遇雷击、开关浪涌等瞬态高压时,快速导通并钳位电压,避免后级敏感元器件(如IC、电容、半导体器件)被击穿损坏。

品牌:Brightking(君耀)
封装形式:径向引线(通孔安装)
核心类型:氧化锌压敏电阻

二、关键电气参数详解

该型号参数经过严格校准,覆盖防护性能与安全工作范围,具体如下:

1. 压敏电压与工作电压

  • 压敏电压(V₁ₘₐ):198V242V(公差±10%),即器件通过1mA直流电流时的电压值,是选型核心参考——需匹配电路正常工作电压的1.21.5倍,确保常态下低漏电流、不干扰电路;
  • 工作电压:DC180V(直流持续工作电压)、AC140V(交流有效值持续工作电压),是器件长期安全工作的电压上限,超过此值可能导致漏电流增大、器件老化。

2. 浪涌防护能力

  • 钳位电压(V꜀):360V(8/20μs浪涌波形下),即器件导通后能将浪涌电压限制在360V以内,保护后级器件不被过压击穿;
  • 峰值浪涌电流(Iₚₚ):1.75kA(8/20μs浪涌),可耐受单次最大浪涌峰值电流;
  • 浪涌能量:19J(单次8/20μs浪涌下的能量耐受值),能有效吸收中等强度的浪涌冲击。

3. 其他关键参数

  • 静态电容:230pF(1kHz测试),高频下的电容特性——虽不适合射频电路,但适配电源滤波、工业控制等对电容要求不苛刻的场景;
  • 静态功率:250mW,器件常态下的最大允许功耗,需确保工作时漏电流对应的功耗不超过此值。

三、封装与可靠性设计

221KD07J采用径向引线封装,具备以下实用优势:

  1. 安装便捷:通孔式引线适配传统PCB焊接工艺,无需特殊夹具,适合批量生产;
  2. 机械强度:引线采用镀锡铜线,抗弯折、耐焊接高温(符合君耀标准:焊接温度260℃±5℃,时间≤3s);
  3. 环境适应性:器件本体采用耐高温环氧树脂封装,可在-40℃~+85℃工业级温度范围内稳定工作,抗潮湿、抗振动性能符合IEC相关标准。

四、典型应用场景推荐

结合参数特性,221KD07J适用于以下场景的浪涌防护:

  1. 开关电源AC输入防护:如家电(空调、洗衣机)、办公设备(打印机)的电源模块,过滤电网浪涌;
  2. 工业控制电路:PLC、变频器等设备的电源/信号端口防护,应对工业现场的开关浪涌;
  3. 通信基站电源:基站整流器、户外设备的电源滤波,防护雷击与电网波动;
  4. 低压配电系统:小型配电箱、应急照明的过压保护,提升配电可靠性。

五、选型与使用注意事项

  1. 选型匹配:需确保电路正常工作电压(DC/AC)不超过器件额定值,压敏电压需为工作电压的1.2~1.5倍(如AC140V电路,1.2倍为168V,1.5倍为210V,该型号完全适配);
  2. 安装规范:并联在被保护电路两端,引线长度尽量缩短(≤10mm),避免引入额外电感影响防护响应;
  3. 焊接要求:避免焊接时间过长或温度过高,防止器件本体受热损坏;
  4. 失效判断:若器件出现颜色发黑、引线断裂,或漏电流明显增大,需及时更换,避免防护失效。

综上,Brightking 221KD07J压敏电阻凭借稳定的中高压防护性能、可靠的径向封装设计,成为工业控制、电源等领域的实用防护器件,可有效提升电路的抗浪涌能力与长期可靠性。

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