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BOURNS MF-R250
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- BOURNS MF-R250
- Type
- BOURNS
- Unit
- Electronic Component
- Minimum package
- 500
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- MF-R250
- Electronic Component
- 1
- Package
- Through-hole
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.493g
- Electronic Component
- 12mm
- Electronic Component
- 1
- Electronic Component
- 10.3s
- Electronic Component
- BM69413870
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 30V
- Power(Pd)
- 1.2W
- 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-R250 产品概述
产品背景
在现代电子设备中，保护电路和关键元器件的安全至关重要。过流保护器件如正温度系数热敏电阻（PTC）在这一领域扮演着不可或缺的角色。MF-R250是一款由BOURNS公司制造的高性能PTC产品，广泛应用于多种电子设备中，以防止因过流引起的损坏。
基础参数
MF-R250的基础参数设计合理，多项指标确保了其在高性能应用中的可靠性和实用性：
- 类型：聚合物
- 最大电压：30V
- 最大电流：40A
- 保持电流 (Ih)：最大2.5A
- 跳断电流 (It)：5A
- 跳断时间：10.3秒
- 初始电阻 (Ri)：最小25 mΩ
- 跳断后电阻 (R1)：最大70 mΩ
- 工作温度范围：-40°C到85°C
- 安装类型：通孔
- 封装形式：径向、圆片式
- 尺寸：长0.472"（12.00mm）x 宽0.118"（3.00mm）x 高0.720"（18.30mm）
- 引线间距：0.201"（5.10mm）
设计与功能
MF-R250的设计不仅注重功能性，也兼顾了尺寸和便捷的安装方式。其聚合物材料带来了优异的电气特性，能够有效抑制温度变化对电流的影响，保障设备在各种工作环境下的安全运行。
电流特性方面，MF-R250具有极低的初始电阻（25 mΩ），这意味着在正常工作条件下其对电流的阻抗很小，不会造成不必要的能量损失。当设备出现过流现象并达到跳断电流阈值（5A）时，MF-R250能够迅速反应并断开电流，从而防止设备损坏。该设备的跳断时间为10.3秒，在达到过流条件后能够快速切换，确保保护系统的高效性。
工作温度范围非常广泛，从-40°C到85°C，意味着MF-R250在各种极端环境下都可以稳定工作，适合在工业、汽车、消费电子等领域中使用。
应用场合
MF-R250广泛应用于许多领域，包括但不限于：
- 消费电子：在智能手机、平板电脑、各种家用电器等设备中提供电流过载保护。
- 工业设备：在工业控制系统和机械设备中，保护敏感组件免受电流过载的影响。
- 汽车电子：在汽车电气系统中对电子控制单元（ECU）、传感器及其他重要组件进行保护。
- 家用电器：如冰箱、洗衣机等，通过过流防护提高设备的安全性和可靠性。
安装和兼容性
MF-R250采用通孔安装设计，适合各种电路板，只需简单的焊接和插入即可。这种安装方式使得MF-R250与大多数现有电路环境兼容，降低了设计和维护的复杂性。此外，其较小的体积和合理的引线间距使得可以在空间有限的设备中使用。
结论
BOURNS的MF-R250正温度系数热敏电阻是一款卓越的过流保护元器件，凭借其优异的性能、广泛的应用范围和便捷的安装方式，必将在许多电子设备和系统中发挥至关重要的作用。随着对电源保护需求的不断提升，MF-R250将成为设计工程师和系统集成商的理想选择。
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