WMSIC Electronic Components

DOWO MVR1206-390G MVR1206

ModelMVR1206-390G
Package1206
BrandDOWO
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
DOWO MVR1206-390G
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
MVR1206-390G
Electronic Component
1
Package
1206
Electronic Component
Varistor Resistor
Electronic Component
1J
Electronic Component
0.051g
Electronic Component
1
Varistor Voltage
39V
Electronic Component
BM0264801971
Voltage
65V
Static Capacitor
750pF@1MHz
Operating Voltage(AC)
24V
Operating Voltage(DC)
30V
Surge Current
100A

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

MVR1206-390G 压敏电阻产品概述

一、产品核心身份与定位

MVR1206-390G是东沃电子(DOWO)推出的1206封装片式压敏电阻,属于氧化锌(ZnO)基过电压保护器件,核心定位为低电压直流/交流电路的瞬态浪涌防护。其设计目标是针对消费电子、小型电源、智能家居等紧凑电路,有效抑制雷击、静电放电(ESD)、开关浪涌等瞬态过电压,避免敏感元件(如IC、MOS管)损坏,提升设备可靠性。

二、关键电气参数深度解析

压敏电阻的性能核心由电气参数决定,以下是MVR1206-390G的关键参数及实际意义:

  1. 压敏电压(39V):直流电流1mA时的器件电压(典型值),是导通阈值——电路电压超39V时,器件从高阻态转为低阻态,钳位过电压。
  2. 钳位电压(65V):峰值浪涌电流100A时的最大电压,是被保护对象的安全上限(适配通常耐受≤60V的敏感元件)。
  3. 工作电压(DC30V/AC24V):长期稳定工作的电压范围(有效值),需严格遵守(超压会加速老化)。
  4. 峰值浪涌电流(100A):单次8/20μs浪涌波形下的最大耐受电流,覆盖家庭电源、设备开关等常见浪涌场景。
  5. 浪涌能量(1J):单次浪涌可吸收的最大能量(对应100A峰值),满足低功率电路防护需求。
  6. 静态电容(750pF@1MHz):1MHz频率下的寄生电容,低频电路(电源、低频信号)无影响,高频电路(≥10MHz射频)需评估信号完整性。

三、机械封装与可靠性特性

  1. 封装规格:采用1206英制封装(公制3216,尺寸3.2mm×1.6mm×1.0mm),体积紧凑,适配SMT表面贴装,支持回流焊、波峰焊批量生产,适合高密度PCB布局。
  2. 可靠性设计:
    • 材料:高温烧结氧化锌陶瓷,热稳定性强,抗老化性能优;
    • 引脚:镀锡工艺,焊接兼容性好;
    • 认证:符合RoHS环保标准,通过IEC61000-4-5浪涌抗扰度测试,满足工业级基本可靠性要求。

四、典型应用场景

MVR1206-390G的参数适配性使其覆盖以下场景:

  1. 小型电源防护:手机充电器、蓝牙耳机充电仓、移动电源的输入/输出端,抑制电网浪涌;
  2. 消费电子终端:智能手表、无线耳机、小型家电(加湿器、智能灯)的控制电路,防护IC免受静电/浪涌损坏;
  3. 智能家居设备:温湿度传感器、智能开关、小型控制器的信号/电源线路,提升抗干扰能力;
  4. 工业低电压控制:PLC输入输出模块、小型电机控制电路的辅助电源,适配30V以下直流电路。

五、产品核心优势

  1. 紧凑封装适配小型化:1206封装节省PCB空间,适合便携设备、高密度电路;
  2. 参数梯度安全合理:压敏电压(39V)与工作电压(DC30V)差值9V,既保证导通灵敏度,又避免误触发;
  3. 浪涌耐受匹配主流需求:100A峰值+1J能量,无需并联多个器件即可覆盖常见浪涌;
  4. 品牌可靠性保障:东沃电子专业元器件厂商,产品质量稳定,提供技术支持与售后保障。

六、选型与使用注意事项

  1. 电压匹配优先:长期工作电压不得超DC30V/AC24V,避免过热老化;
  2. 并联位置靠近被保护对象:减少线路阻抗对钳位效果的影响;
  3. 高频电路需评估:10MHz以上射频电路,750pF电容可能影响信号,建议换低电容压敏;
  4. 焊接工艺控制:遵循1206封装回流焊曲线(峰值240-260℃,时间≤30s),避免高温损坏。

综上,MVR1206-390G是一款针对低电压电路设计的高性价比压敏电阻,在紧凑空间、常见浪涌防护场景中具有显著优势,是消费电子、小型电源等领域的可靠选择。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.