WMSIC Electronic Components

Brightking 330KD10

Model330KD10
PackageThrough-hole, P=7.5mm
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 330KD10
Type
BRIGHTKING
Minimum package
500

Technical parameters

Electronic Component
Brightking
Electronic Component
330KD10
Electronic Component
1
Package
Through-hole, P=7.5mm
Electronic Component
Varistor Resistor
Electronic Component
4J
Electronic Component
0.673g
Electronic Component
1
Varistor Voltage
33V
Electronic Component
BM0257359304
Voltage
65V
Static Power
50mW
Static Capacitor
3nF@1kHz
Operating Voltage(AC)
20V
Operating Voltage(DC)
26V
Surge Current
500A

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

330KD10 — 压敏电阻产品概述

一、产品简介

330KD10(Brightking 台湾君耀)为直插式金属氧化物压敏电阻(MOV),10mm 磁盘封装,引脚间距 P=7.5mm。针对低压直流/交流系统的过电压防护设计,体积小、响应快、吸收能量能力适中,适用于通信电源、工业控制和消费类小功率电源的浪涌保护。

二、主要参数

  • 压敏电压(Vnom):33V
  • 钳位电压:65V(在指定浪涌条件下的典型值)
  • 工作电压 DC:26V(连续最大)
  • 工作电压 AC:20V(连续有效值)
  • 峰值浪涌电流 Ipk:500A(单次冲击脉冲能力)
  • 能量吸收:4J(单次能量吸收能力)
  • 静态电容:3nF @ 1kHz(对高频信号有影响)
  • 静态功耗:50mW(泄漏产生的最大功耗)
  • 封装:插件(直插),P=7.5mm

三、工作原理与特性要点

压敏电阻呈高度非线性 V–I 特性:在正常工作电压下保持高阻抗、泄漏电流小;遭受瞬态高压时阻抗骤降,将能量以热能形式吸收并将电压钳位在安全水平。响应时间极短(纳秒级),但能量吸收后会升温,长期或重复浪涌会导致特性退化或失效。

四、典型应用场景

  • DC/AC 小功率电源输入端防雷和浪涌抑制
  • 通讯设备(交换机、路由器)电源保护
  • 工业控制模块和传感器电源保护
  • 充电器与适配器的输入端过压防护

五、使用与选型建议

  • 连续工作电压应低于标称压敏电压,建议遵循额定工作电压(DC26V / AC20V)并留有裕量,避免长期接近Vnom导致高泄漏和自热。
  • 钳位电压65V为在指定浪涌条件下的典型值,设计系统时应保证设备能承受该电平瞬态。
  • 单次能量4J与峰值500A表明适用于中等幅度浪涌;若预期更高能量或重复冲击,应选用能量等级更高或并联/串联方案并配合熔断器/浪涌抑制器。
  • 静态电容3nF 在高频或高速数据线附近会造成耦合与失真,不适合直接并联在高速信号线上;用于电源线防护时通常可接受。
  • 对反复浪涌场景,建议配合热熔断器或监测电路,防止器件吸收多次大能量后失效引发连锁故障。

六、装配与可靠性注意

  • 直插封装适合手工或波峰焊装配,具体焊接曲线应参照厂方资料,避免过高温度或长时间加热。
  • 安装时避免机械应力和弯曲,引脚保持必要间距并良好接地连接(如用于接地型防护)。
  • 存储环境避免潮湿、高温及强酸碱气氛,老化或受潮会影响击穿与泄漏特性。
  • 建议在样机阶段进行浪涌试验(按 IEC/EN 标准或实际应用的脉冲规格)以验证钳位、电压分布及热稳定性。

如需更详细的电气特性曲线、浪涌测试条件和焊接推荐,请提供是否需要厂方数据手册或我可代为检索并整理关键图表与测试方法。

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