WMSIC Electronic Components

BOURNS MF-R020

ModelMF-R020
PackageThrough-hole, P=5.1mm
BrandBOURNS
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
BOURNS MF-R020
Type
BOURNS
Unit
Electronic Component
Minimum package
500

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
MF-R020
Electronic Component
1
Package
Through-hole, P=5.1mm
Electronic Component
Resettable Fuse
Electronic Component
0.493g
Electronic Component
7.4mm
Electronic Component
1
Electronic Component
2.2s
Electronic Component
BM0000281946
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
60V
Power(Pd)
400mW
Current(Imax)
40A
Electronic Component
500

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

MF-R020 产品概述

产品简介

MF-R020 是一款由 BOURNS 生产的聚合物复位保险丝(PTC Fuse),专为高电流保护设计,能够有效防止过电流对电子设备造成的损害。该产品采用先进的聚合物材料,能够在特定条件下自动复位,确保电路的长期稳定性和可靠性。适合多种应用场景,特别是在需要对设备进行过流保护的电子电路中。

基础参数

类型与材料
MF-R020 是一种聚合物材料的 PTC 保险丝,具有良好的热稳定性和电气性能。其聚合物基材能在过载情况下迅速反应,确保电路的安全性。

电气特性

  • 最大电压: 60V,这使得 MF-R020 能够在多种电力系统中安全使用。
  • 最大电流: 40A,适应高功率应用。
  • 保持电流 (Ih): 最大值为 200mA,当电流低于此值时,保险丝不会跳断。
  • 跳断电流 (It): 400mA,当电流持续超过此值时,保险丝将在 2.2 秒内跳断。这一特性,确保了在电流异常情况下的快速反应,保护电路。

电阻特性

  • 初始电阻 (Ri): 最小值为 1.5 Ohms,这样的初始电阻有助于隔离电流的正常流动。
  • 跳断后的电阻 (R1): 最大值为 4.4 Ohms,确保保险丝在跳断后能够有效地阻隔电流。

温度范围
该保险丝的工作温度范围为 -40°C 至 85°C,适合各种严酷的工作环境,确保在极端条件下也能保持良好的性能。

结构与安装
MF-R020 的封装类型为径向、圆片式,采用通孔安装设计,这种设计便于在 PCB 板上进行焊接和集成。产品尺寸为 0.291"(7.40mm)直径 x 0.122"(3.10mm)厚,最大安装高度为 0.500"(12.70mm),引线间距为 0.201"(5.10mm),这些参数确保了其在 PCB 板上的兼容性和灵活性。

应用场景

MF-R020 适用于多种电子设备和电路板,特别是在以下领域表现优异:

  1. 电源供应模块: 为开关电源、适配器和充电器提供有效的过载保护,确保对电源装置的长期保护。
  2. 消费电子产品: 在音响、电视、家电等消费类电子产品中应用,防止过电流损坏电路。
  3. 玩具和通信设备: 在玩具和各类通信设备中使用,保障设备的安全运行,避免电流过载导致的损坏。
  4. 工业控制系统: 在工业设备和自动化控制系统中,保护敏感部件不受过流的影响。

优势与特点

  • 自恢复性: MF-R020 具有自我恢复功能,当过载电流消失后,保险丝可以自动返回到常用状态,避免了更换保险丝的麻烦。
  • 快速响应: 快速的跳断时间(2.2秒)确保了在过流情况下能及时保护电路,降低损坏风险。
  • 高电流处理能力: 最高可支持 40A 的工作电流,为高功率应用提供足够的保护余地。
  • 广泛的工作温度范围: 可在严酷环境下运行,确保了在不同温度和条件下的性能稳定。

结论

MF-R020 聚合物复位保险丝是一个可靠和有效的电流保护选择,适用于多种电器设备和电路应用。Bourns 作为行业内领先的品牌,凭借其卓越的设计与制造能力,提供了这一出色的保护解决方案。选择 MF-R020,不仅能够确保电路的安全性,同时还可以提高设备的使用寿命和稳定性,是各类电子产品不可或缺的重要组件之一。

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