Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOURNS MF-SM250-2
Configuration
1 options
Configuration
21+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- BOURNS MF-SM250-2
- Type
- BOURNS
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- BOURNS
- Electronic Component
- MF-SM250-2
- Electronic Component
- 1
- Package
- SMD,9.5x6.7mm
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.851g
- Electronic Component
- 1
- Electronic Component
- 25s
- Electronic Component
- BM0000003073
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 15V
- Power(Pd)
- 1.9W
- Current(Imax)
- 100A
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MF-SM250-2 产品概述
一、产品概述
MF-SM250-2是一款高性能的正温度系数热敏电阻（PTC），由知名电子元器件制造商BOURNS提供。该元器件特别设计用于保护电路免受过流和短路现象的影响，广泛应用于电子设备和电源管理系统中。作为一种表面贴装型元件，MF-SM250-2不仅具备优异的电气性能，还具备良好的机械特性，适合进行自动化生产和紧凑型电路设计。
二、关键参数
电压和电流承载能力：MF-SM250-2的最大电压为15V，最大电流可达到100A，使其能够在多种应用场合下稳定运行，并能够承受瞬态电流的冲击。这使得它非常适用于高功率的电子设备，尤其是电池管理系统、电机控制和电源供应等场合。
电流保持和跳断特性：该PTC的保持电流（Ih）为2.5A，跳断电流（It）为5A。在发生过载时，它能在25秒内迅速响应，自动切断电流，从而保护下游电路，这样的快速反应时间在电源管理和保护电路设计中至关重要。
电阻特性：MF-SM250-2的初始电阻（Ri）为24毫欧，而跳断后的电阻（R1）最大可达到85毫欧。这一特性保证了元器件在正常工作状态下的低阻抗，确保电路的高效能和稳定性。跳断后的电阻值在某些场合下也能够提供额外的保护，帮助散发多余的热量，进一步降低潜在的线路故障风险。
广泛的工作温度范围：MF-SM250-2的工作温度范围为-40°C到85°C，适用于各种温度环境下的应用，无论是极寒还是高温环境，这种PTC都能保持良好的性能稳定性。
认证标准：产品符合AEC-Q200汽车电子组件标准，这意味着它在汽车应用中也能提供可靠的性能，适合汽车电子、控制单元以及其他要求高可靠性和安全性的应用场景。
三、应用场景
MF-SM250-2的设计使其适用广泛的应用场景，包括但不限于：
- 电源管理系统：能够有效防止过流和短路，保护电源模块及其下游元件不受损害。
- 电池保护板：在电池充电和放电过程中提供过流保护，延长电池的使用寿命。
- 电机驱动：在电动机应用中，能够防止电机因过载而引起的损坏。
- 家电产品：如洗衣机、空调和冰箱等家用电器中的安全保护，防止因过热或短路引发的火灾隐患。
- 汽车电子：广泛应用于电动汽车、混合动力汽车中的电池管理系统及相关电子设备。
四、结论
MF-SM250-2作为一款高度集成的正温度系数热敏电阻，凭借其卓越的性能、可靠的保护特性和广泛的应用场景，已经成为现代电子设备中不可或缺的重要元器件之一。无论是在消费电子、电力电子还是汽车电子领域，MF-SM250-2都展现出了其独特的价值，为设计师们提供了可靠的解决方案，以应对日益严峻的电源安全挑战。受益于BOURNS的优质制造和严格测试，MF-SM250-2为工程师和设计师提供了一个值得信赖的选择，确保其产品在各种工作环境下安全、高效地运行。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
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.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
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.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
