WMSIC Electronic Components

RUILON RL0805A241K

ModelRL0805A241K
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 RL0805A241K
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RL0805A241K
Electronic Component
1
Package
0805
Electronic Component
Varistor Resistor
Electronic Component
200mJ
Electronic Component
0.042g
Electronic Component
1
Varistor Voltage
216V~264V
Electronic Component
BM0264919857
Voltage
415V
Operating Voltage(AC)
150V
Operating Voltage(DC)
200V
Surge Current
30A
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.

RL0805A241K 压敏电阻产品概述

一、产品定位与核心价值

RL0805A241K是瑞隆源(RUILON)推出的小型贴片氧化锌压敏电阻,属于瞬态电压抑制(TVS)器件范畴,专为中低电压电路的过压防护设计。其核心价值在于以极小的805封装实现稳定的浪涌抑制能力,适配高密度PCB布局需求,广泛应用于消费电子、家电、小型工业设备等领域,是替代传统插件压敏电阻的高性价比方案。

二、关键参数深度解读

该器件的核心参数直接决定了防护性能,需结合实际场景匹配:

  1. 压敏电压(V₁ₘₐ):标称值240V(型号后缀“241K”表示:24×10¹=240V,“K”代表±10%公差),实际范围216V~264V。这是压敏电阻的核心标称值,指通过1mA测试电流时的电压,决定了器件的工作电压上限;
  2. 额定工作电压:DC200V(直流)/AC150V(交流),是器件可长期稳定工作的电压阈值。若持续工作电压超过该值,会加速器件老化甚至短路;
  3. 钳位电压(Vc):415V(测试条件:峰值浪涌电流30A,8/20μs波形)。过压发生时,压敏电阻快速导通,将电路电压钳位在该值以下,保护后端敏感元器件(如MCU、传感器等);
  4. 峰值浪涌电流(Iₚₚ):30A(8/20μs浪涌波形),即器件能承受的单次最大浪涌电流峰值,反映了对强瞬态冲击的耐受能力;
  5. 浪涌能量(E):200mJ,是器件能吸收的最大浪涌能量,对应多次小浪涌或单次中等能量冲击的耐受能力;
  6. 封装尺寸:805(英制),对应公制2012(2.0mm×1.2mm),属于小型贴片封装,支持自动化SMT贴装,节省PCB空间。

三、封装与工艺特性

RL0805A241K采用多层陶瓷叠层工艺,以氧化锌(ZnO)为主体材料,添加少量添加剂(如氧化铋、氧化钴等)形成晶粒间的压敏特性,具有以下优势:

  • 响应速度快:ns级响应时间,能在瞬态过压(如雷击感应、静电放电)发生时快速导通,抑制电压上升;
  • 无极性设计:可任意方向焊接,简化电路设计;
  • 可靠性高:多层结构提高了耐浪涌能力,陶瓷材料稳定性好,长期工作可靠性优于部分聚合物TVS器件;
  • 兼容SMT工艺:焊接温度范围(回流焊:220℃~260℃,峰值温度≤260℃)符合行业标准,适配自动化生产。

四、典型应用场景

因参数匹配中低电压环境,该器件广泛应用于:

  1. 家电控制板:洗衣机、空调、冰箱等的电源输入端,防护市电波动(如电压尖峰)或雷击感应过压;
  2. 小型工业设备:传感器模块、PLC辅助电源、小型变频器的过压防护;
  3. 消费电子:智能音箱、机顶盒、路由器的电源及信号端防护(部分信号端若电压匹配也可使用);
  4. 通信接入设备:光纤收发器、ONU(光网络单元)的电源防护,适配高密度PCB布局。

五、选型与使用注意事项

  1. 电压匹配:必须确保电路正常工作电压不超过DC200V/AC150V,避免长期过压导致器件失效;
  2. 浪涌耐受:若电路浪涌能量超过200mJ或峰值电流超过30A,需并联多个同型号器件(并联后能量和电流能力叠加);
  3. 焊接规范:SMT焊接时需控制回流焊温度,避免过温损坏;手工焊接需使用低温焊锡(≤350℃),焊接时间≤3s;
  4. 环境温度:常规工作温度范围为-40℃~+85℃,超出需降额使用;
  5. 布局建议:尽量靠近被保护电路的输入端,减少引线电感(引线电感会导致钳位电压升高,降低防护效果)。

RL0805A241K以“小体积、高可靠性、适配性强”为核心优势,是中低电压电路过压防护的实用选择,能有效降低电路因瞬态过压损坏的风险。

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