WMSIC Electronic Components

RUILON 07D271K

Model07D271K
PackageThrough-hole, P=5mm
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON 07D271K
Type
RUILON
Minimum package
1000 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
07D271K
Electronic Component
1
Package
Through-hole, P=5mm
Electronic Component
Varistor Resistor
Electronic Component
11.3J
Electronic Component
0.712g
Electronic Component
1
Varistor Voltage
243V~297V
Electronic Component
BM0265611299
Voltage
455V
Static Power
250mW
Static Capacitor
150pF@1kHz
Operating Voltage(AC)
175V
Operating Voltage(DC)
225V

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

RUILON瑞隆源07D271K压敏电阻产品概述

07D271K是RUILON(瑞隆源)品牌推出的径向引线式压敏电阻,属于过电压保护核心器件,针对中等功率电路的浪涌防护需求设计,兼具稳定的电气性能与可靠的封装特性,广泛适用于家电、小型工业设备等领域的电源防护场景。

一、产品命名与核心属性

该型号命名遵循压敏电阻通用规则,各部分含义清晰:

  • 07:标识器件直径约7mm(径向引线封装的典型尺寸);
  • D:表示圆形片状封装结构;
  • 271:标称压敏电压为270V(27×10¹);
  • K:压敏电压公差为±10%。

作为压敏电阻,其核心功能是当电路出现过电压(如雷击、开关浪涌)时,快速从高阻态转为低阻态,钳位电压并泄放浪涌能量,保护后端敏感电子元件免受损坏。

二、关键电气参数深度解析

1. 电压特性参数

  • 压敏电压范围:243V~297V(对应标称270V±10%),是器件从高阻向低阻转换的临界电压,需与电路工作电压匹配以避免误触发;
  • 长期工作电压:DC225V(直流有效值)、AC175V(交流有效值),此为器件可长期安全工作的电压上限,超过该值会导致漏电流增大,引发热老化甚至失效;
  • 钳位电压:455V(典型值),指浪涌电流达到峰值时,器件两端的最大电压,是评估浪涌防护效果的核心指标(电压越低,对后端电路保护越好)。

2. 浪涌防护能力

  • 峰值浪涌电流:1.2kA(8/20μs波形,行业通用浪涌测试波形),表示器件可承受的最大瞬时浪涌电流;
  • 浪涌能量:11.3J(10/1000μs波形),反映器件可泄放的浪涌能量上限,适用于中等能量浪涌场景(如家电开关浪涌、小型雷电感应浪涌)。

3. 其他电气特性

  • 静态电容:150pF@1kHz,属于低电容值,对高频电路干扰较小,适合简单电源防护;
  • 静态功率:250mW,是器件自身允许的最大静态功耗,需结合工作电压下的漏电流控制在安全范围内。

三、封装与物理特性

07D271K采用径向引线封装(插件式),具有以下实用特点:

  • 物理尺寸紧凑(直径≈7mm,引脚间距符合标准插件要求),适配空间有限的PCB布局;
  • 引脚为镀锡铜线,焊接性良好,支持手工焊接或自动插件设备;
  • 封装材料为环氧树脂,具备耐温、耐湿、抗机械冲击能力,可在-40℃~+85℃的宽温环境下稳定工作。

四、典型应用场景

该器件的电压等级与浪涌能力匹配以下常见场景:

  1. 家电电源防护:洗衣机、空调、微波炉等220V交流电源的浪涌防护(避免开关浪涌或雷电感应损坏控制电路);
  2. 小型工业设备:小型PLC、传感器模块的电源输入端防护;
  3. LED驱动电源:低功率LED灯具的电源浪涌防护;
  4. 通信辅助电源:路由器、交换机的辅助电源模块防护(针对静电放电、开关浪涌)。

五、选型与使用注意事项

1. 选型要点

  • 确认电路工作电压(DC/AC)不超过器件长期工作电压(DC225V/AC175V);
  • 评估浪涌能量与电流,确保不超过11.3J/1.2kA的上限;
  • 若需更高防护能力,可考虑并联多个器件(需注意均流,避免局部过流)。

2. 使用注意

  • 焊接温度不超过260℃,焊接时间≤5秒(避免损伤封装与内部结构);
  • 安装位置靠近被保护电路的输入端,减少引线电感对防护效果的影响;
  • 储存环境需干燥、通风,避免引脚氧化(储存温度-40℃~+60℃,湿度≤80%);
  • 禁止在超过工作电压的环境下长期运行,否则会加速器件老化。

该产品凭借稳定的电气性能、可靠的封装与适中的防护能力,成为中等功率电路浪涌防护的常用选型之一,符合家电、小型工业设备等领域的实际防护需求。

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