WMSIC Electronic Components

DOWO MVR1210-470G MVR1210

ModelMVR1210-470G
Package1210
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 MVR1210-470G
Type
DOWO
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
MVR1210-470G
Electronic Component
1
Package
1210
Electronic Component
Varistor Resistor
Electronic Component
1.5J
Electronic Component
0.076g
Electronic Component
1
Varistor Voltage
47V
Electronic Component
BM0230013242
Voltage
77V
Static Capacitor
850pF@1MHz
Operating Voltage(AC)
28V
Operating Voltage(DC)
36V
Surge Current
250A

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

MVR1210-470G 产品概述

一、主要特性

MVR1210-470G 是东沃(DOWO)推出的一款插件式压敏电阻,专为直流/交流低电压系统的浪涌抑制设计。其显著特性包括:压敏电压(Vb)47V、钳位电压(Vc)77V(峰值浪涌时)、工作电压 DC 36V / AC 28V、峰值浪涌电流 250A、吸收能量 1.5J,以及较高的静态电容 850pF(@1MHz)。封装为 1210,便于 PCB 布局与安装。

二、关键技术参数

  • 压敏电压:47V(标称触发电压)
  • 钳位电压:77V(在标称浪涌条件下的最大钳位)
  • 工作电压:DC 36V / AC 28V(建议长期连续使用不超过该值)
  • 峰值浪涌电流:250A(冲击瞬时峰值能力)
  • 吸收能量:1.5J(单次浪涌能量吸收能力)
  • 静态电容:850pF @1MHz(对高速信号线路有影响)
  • 封装:1210(插件式,适合常规焊接工艺)

三、典型应用场景

适用于48V类通信电源、工业控制电源输入端、消费类电源模块以及其他直流供电线路的浪涌/瞬态过压保护。由于静态电容较高,不推荐用于高速数据线或对阻抗敏感的信号线上;更适合电源轨、继电器线圈保护或浪涌较集中的电源入口处。

四、设计与使用建议

  • 布局:压敏电阻应尽量靠近需要保护的输入端或连接器,以减少导线/走线引入的感性阻抗,提升抑制效果。
  • 串联与并联:在高能量场合可并联多只以提高能量吸收能力;注意并联时一致性与电压分配问题。
  • 热与寿命:频繁大幅度浪涌会降低器件寿命,应根据实际工况进行能量预估和必要的热散耗设计。
  • 电容影响:850pF 的静态电容会对滤波与信号完整性产生影响,在对信号完整性有严格要求的场合需谨慎选型。
  • 焊接与可靠性:遵循常规插件焊接工艺与温度曲线,避免长时间高温作用。存放与使用时防潮、防机械应力。

五、选型与注意事项

在选用时需确认系统最大工作电压、可能出现的浪涌幅值与能量,并留有安全余量。若系统对钳位电压或残压敏感,可考虑更低钳位或更高能量等级的型号。MVR1210-470G 适合作为中低能量浪涌防护的经济型解决方案,但不宜替代高能量或电源隔离级的保护元件。

如需进一步的曲线图(放电曲线、能量-循环特性)、封装尺寸或样品测试建议,可提供具体应用拓扑以便给出更精确的选型与布板建议。

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.