WMSIC Electronic Components

Littelfuse V68MLA1206NH

ModelV68MLA1206NH
Package1206
BrandLittelfuse
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

20 specifications

Core information

Product name
Littelfuse V68MLA1206NH
Type
LITTELFUSE
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
V68MLA1206NH
Electronic Component
1
Package
1206
Electronic Component
Varistor Resistor
Electronic Component
1J
Electronic Component
0.023g
Electronic Component
1
Varistor Voltage
83V
Electronic Component
BM0264520864
Voltage
140V
Static Capacitor
150pF@1MHz
Operating Voltage(AC)
50V
Operating Voltage(DC)
68V

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

V68MLA1206NH 金属氧化物压敏电阻(MLV)产品概述

一、产品核心定位与品牌背景

V68MLA1206NH是美国力特(Littelfuse)推出的通用型贴片金属氧化物压敏电阻(MLV),专为中低压电子电路的浪涌/过压防护设计。力特作为全球电路保护领域的标杆厂商,其MLV产品以高可靠性、宽温度适应性和稳定的防护性能著称,该型号继承了力特的核心工艺优势,兼顾小封装与实用防护能力,广泛覆盖消费电子、工业控制等主流场景。

二、关键电气参数深度解析

该型号的电气参数直接决定防护性能与适用场景,核心参数需结合实际电路需求理解:

  1. 工作电压(AC/DC):额定长期工作电压为50VAC(交流)/68VDC(直流)——若电路长期电压超过该值,压敏电阻漏电流会持续增大,导致发热加速老化甚至击穿失效;
  2. 压敏电压(V₁ₘₐ):标称值为83V(通过1mA电流时的电压),是防护阈值的核心指标——当电路电压突破该值时,器件快速导通,将过压钳位在安全范围;
  3. 钳位电压(V_C):8/20μs浪涌电流(180A峰值)下,最大钳位电压为140V——直接决定后级元件(如IC、电容)的耐受上限,140V可有效保护大多数中低压电子元件;
  4. 浪涌耐受能力:峰值浪涌电流达180A(8/20μs波形),单次浪涌能量耐受1J——可应对电源开关浪涌、雷击感应浪涌(如户外设备低压侧冲击);
  5. 静态电容:150pF@1MHz——影响高频电路信号完整性,适合低频电源、工业IO等场景,若用于RF射频电路需评估电容对信号的衰减。

三、封装形式与典型应用场景

V68MLA1206NH采用1206封装(公制3216,3.2mm×1.6mm),属于小型贴片封装,适配自动化贴装生产线,可压缩PCB布局空间。其典型应用包括:

  • 消费电子:手机、平板、笔记本电源输入(USB/AC-DC适配器)防护,避免充电浪涌损坏;
  • 工业控制:PLC IO端口、传感器接口防护,应对现场电磁干扰(EMI)与浪涌;
  • 通信设备:路由器、交换机电源模块防护,抵御电网波动或雷击感应;
  • LED驱动:小功率LED灯电源端防护,延长驱动IC寿命。

四、可靠性与环境适应性

力特的工艺设计保障了该型号的稳定性:

  1. 环保合规:采用无铅封装,符合RoHS指令,满足欧盟出口要求;
  2. 温度范围:支持**-40℃至+85℃**(行业通用MLV标准),适应户外或工业环境温度变化;
  3. 老化特性:经严格老化测试,漏电流稳定性好,长期工作后防护性能衰减缓慢;
  4. 焊接可靠性:贴片封装适配回流焊/波峰焊工艺,不易出现虚焊或脱落。

五、选型与使用注意事项

为确保防护效果与器件寿命,需注意以下要点:

  1. 电压裕量:电路长期电压需低于68VDC/50VAC,建议预留10%-20%裕量,避免接近额定值工作;
  2. 压敏公差:标称83V通常有±10%公差(74.7V-91.3V),选型需结合电路电压波动范围;
  3. 高频评估:150pF电容可能影响10MHz以上信号,射频电路需选低电容MLV(如pF级);
  4. 并联限制:如需提升浪涌能力,可并联同型号器件,但需保证参数一致性(避免电流集中过热);
  5. 焊接工艺:遵循力特推荐的回流焊温度曲线,避免高温损坏。

总结

V68MLA1206NH是性价比突出的通用型贴片MLV,兼顾小封装、实用防护与可靠性,适合大多数中低压电路的浪涌/过压防护。其参数匹配消费电子、工业控制等主流场景,是力特电路保护产品线中的经典型号,可有效降低设备过压损坏概率,提升产品稳定性。

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