Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Littelfuse 1812L260/12MR 1812L260
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse 1812L260 / 12MR
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 1812L260/12MR
- Electronic Component
- 1
- Electronic Component
- 3.5mm
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.088g
- Electronic Component
- 4.73mm
- Electronic Component
- 2mm
- Electronic Component
- 1
- Electronic Component
- 2.5s
- Electronic Component
- BM0265220761
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 12V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：1812L260/12MR 聚合物 PTC 自恢复保险丝
一、产品简介
1812L260/12MR 是由美国力特（Littelfuse）公司推出的一款聚合物 PTC（正温度系数）自恢复保险丝，专为需要过流保护的电路设计。该产品采用表面贴装型封装，具备优越的热管理和较高的可靠性，适用于各种电子设备的电流保护。
二、基本参数
- 工作温度范围：-40°C ~ 85°C
- 材料类型：聚合物
- 最大电压：12V
- 电阻参数：
- 跳断电阻值（Max）：55 mΩ
- 初始电阻值（Min）：15 mΩ
- 电流参数：
- 保持电流（Ih，最大值）：2.6A
- 最大电流：100A
- 跳断电流（It）：5A
- 跳断时间：最大5秒
- 安装类型：表面贴装型
- 封装/外壳：1812（4532公制），凹陷
- 大小/尺寸：
- 长度：0.179"（4.55mm）
- 宽度：0.128"（3.24mm）
- 最大厚度：0.053"（1.34mm）
三、技术特点
自恢复能力： 该 PTC 保险丝在遇到过流情况下能够迅速跳断，从而保护电路，避免损坏。一旦过流条件解除，保险丝又能自我恢复至正常工作状态，降低了更换频率和维护成本。
低电阻： 其初始电阻值为15 mΩ，跳断后的电阻值为55 mΩ，使其在正常工作状态下能有效降低能量损耗，提高器件的整体效率。
高耐流性： 最大电流达到100A，适用于需求较高的电流环境，能够满足多种电子设备的保护需求。
多样化应用： 1812L260/12MR 被广泛应用于各类电子设备中，如电池管理系统，电源适配器，移动设备等，尤其适合对体积和重量有严格要求的设备。
宽广的工作温度： 该产品具备良好的环境适应性，能够在-40°C到85°C的温度范围内稳定工作，适应各种恶劣的工作环境。
四、应用场合
消费电子： 用于智能手机、平板电脑等设备，保护充电电路和电池，防止过热和过流造成的损坏。
电池管理系统： 在电池保护电路中实施过流保护，维护电池的安全性和稳定性。
电源适配器： 在充电器和电源适配器中提供过流保护，确保设备及用户的安全。
新能源汽车： 为电动汽车的电池管理系统提供可靠的保护，确保在高功率运行情况下的安全。
五、总结
1812L260/12MR 聚合物 PTC 自恢复保险丝凭借其卓越的电流保护能力和适应极端工作环境的特性，成为多种电子设备的理想选择。其高电流承载能力、快速响应特性以及自恢复功能使其在现代电子设计中占据重要位置。选择力特的1812L260/12MR，您不仅是在选择一种保护元件，更是在选择一种可靠的电路保护方案。在日趋复杂的电子设备中，1812L260/12MR 的应用将为产品可靠性和长寿命提供坚实的保证。
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.
