WMSIC Electronic Components

RUILON RL0805A240K

ModelRL0805A240K
Package0805
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 RL0805A240K
Type
RUILON
Minimum package
4000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RL0805A240K
Electronic Component
1
Package
0805
Electronic Component
Varistor Resistor
Electronic Component
200mJ
Electronic Component
0.048g
Electronic Component
1
Varistor Voltage
21.6V~27V
Electronic Component
BM0259569914
Voltage
59V
Operating Voltage(AC)
14V
Operating Voltage(DC)
18V
Surge Current
50A
Electronic Component
Electronic Component

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

RL0805A240K压敏电阻产品概述

RL0805A240K是瑞隆源(RUILON)推出的一款0805封装片式压敏电阻,专为低电压电子电路的瞬态过压防护设计,可有效抑制静电放电(ESD)、开关浪涌、雷电感应等干扰,保障敏感元器件(如MCU、传感器)稳定运行。

一、产品定位与核心设计思路

该产品针对消费电子、通信设备、小型家电等领域的低压电路防护需求,核心围绕“小封装+高效浪涌抑制”展开:既适配高密度PCB布局(0805封装尺寸紧凑),又能在低工作电压下快速响应瞬态过压,将电压钳位在安全阈值内,避免电路损坏。

二、关键电性能参数解析

2.1 电压核心参数

  • 压敏电压:21.6V~27V(标称24V,公差±10%),指通过1mA直流电流时的电压值,是判断防护等级的基础;
  • 持续工作电压:直流18V、交流14V(有效值),即电路长期稳定工作时,压敏电阻允许承受的最大电压,需与被保护电路电压严格匹配;
  • 钳位电压:59V(在50A浪涌电流下),即浪涌发生时,压敏电阻两端的电压上限,远低于多数敏感元器件的损坏阈值(通常≥60V)。

2.2 浪涌防护能力

  • 峰值浪涌电流:50A(8/20μs标准波形),可承受单次中等强度浪涌(如近距离雷电感应);
  • 能量耐受:200mJ,反映多次小浪涌(如开关切换)的吸收能力,确保长期防护可靠性。

三、封装与可靠性设计

3.1 封装特性

采用0805封装(英制:0.08″×0.05″,公制:2012),适配表面贴装工艺,支持回流焊、波峰焊,无引脚设计减少PCB占用空间,适合小型化设备(如智能手机、智能插座)。

3.2 可靠性保障

  • 耐焊接热:可承受260℃±5℃回流焊温度(持续10~20秒),无开裂、性能衰减;
  • 环境适应性:工作温度范围-55℃~125℃,满足工业级(如小型PLC)与消费级设备的环境要求;
  • 环保合规:符合RoHS 2.0、REACH标准,无铅无镉,适配绿色电子产品设计。

四、典型应用场景

  1. 消费电子接口:智能手机USB充电口、耳机接口,抑制人体接触静电(ESD)与充电浪涌;
  2. 通信设备端口:路由器RS485接口、物联网模块以太网口,防护雷电感应与设备开关浪涌;
  3. 小型家电控制:智能插座MCU供电电路、遥控器按键电路,避免开关切换瞬态过压;
  4. 低压工业模块:小型传感器节点输入输出端,防护现场电磁干扰产生的浪涌。

五、选型与使用注意事项

  1. 电压匹配:被保护电路持续电压需≤18V(DC)/14V(AC),避免长期过压导致老化;
  2. 浪涌强度:若电路浪涌强度较高(如户外设备雷电防护),可并联多个该型号或选用更高规格(如峰值电流100A);
  3. 安装方式:必须并联在被保护电路(电源/信号端)与地之间,确保浪涌电流快速泄放;
  4. 焊接注意:回流焊时避免温度过高/时间过长,防止封装开裂;
  5. 老化检测:关键电路可定期检测压敏电压,若漂移超10%需更换,确保防护有效性。

该产品以高性价比、小封装优势,成为低压电子电路浪涌防护的主流选型之一,广泛应用于消费电子、通信等领域。

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