WMSIC Electronic Components

LUTE 2512L100/60QR 2512L100

Model2512L100/60QR
Package2512
BrandLUTE
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
LUTE 2512L100 / 60QR
Type
LUTE
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LUTE
Electronic Component
2512L100/60QR
Electronic Component
1
Electronic Component
3.3mm
Package
2512
Electronic Component
Resettable Fuse
Electronic Component
1.923g
Electronic Component
6.85mm
Electronic Component
1.75mm
Electronic Component
1
Electronic Component
500ms
Electronic Component
BM0264548620
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
60V
Power(Pd)
1.8W

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

2512L100/60QR 高分子正温度系数热敏电阻(PPTC)产品概述

一、产品定位与核心价值

2512L100/60QR是陆特(LUTE)品牌推出的表面贴装自恢复过流保护器件,专为中低压电路的过流/过温保护设计。其核心价值在于:在实现可靠故障防护的同时,通过低初始阻值降低电路损耗,且具备自恢复特性(无需故障后更换元件),适配多种小型化、宽温工作的电子设备需求,是消费电子、车载、工业控制等领域的实用保护方案。

二、关键参数深度解析

该器件的核心参数直接决定保护能力与适用场景,具体解析如下:

  • 耐压(Vmax=60V):电路正常工作及故障状态下可承受的最高电压,适用于60V以下中低压系统(如LED驱动、车载辅助电路);
  • 最大电流(Imax=50A):可承受的瞬时浪涌电流(非持续电流),能应对电路启动瞬间的脉冲冲击,避免误动作;
  • 保持电流(Ihold=1A):正常工作时器件不动作的最大持续电流,需确保电路正常工作电流≤1A(如小功率传感器、微型电机);
  • 跳闸电流(Itrip=1.8A):电流超过该值时,器件在500ms内动作,阻值急剧上升限制电流,切断故障回路;
  • 初始阻值(Rmin=90mΩ):常温下最小导通电阻,低阻值可减少电路功耗与压降,提升系统效率;
  • 跳断后阻值(R1max=400mΩ):故障状态下的最大阻值,能将电流限制在安全范围,避免元件烧毁;
  • 动作时间(500ms):Itrip=1.8A下的典型响应时间,兼顾保护速度与抗瞬态干扰(如开关脉冲);
  • 工作温度(-40℃~+85℃):宽温范围覆盖工业、车载等严苛环境,满足低温启动与高温持续工作需求。

三、封装与尺寸规格

该器件采用2512表面贴装封装(英寸规格,实际公制尺寸为6.85mm×3.3mm×1.75mm),属于小型化贴片封装,适配自动化贴装生产线,可节省PCB空间,适合高密度电路设计(如便携式设备、小型电源模块)。封装无引脚设计减少寄生参数影响,机械强度满足常规焊接与使用场景。

四、典型应用场景

结合参数特性,2512L100/60QR适用于以下场景:

  1. 车载电子辅助电路:车内传感器(胎压、温度)、小功率执行器(门锁、座椅调节)的过流保护,宽温范围适配车载-40℃~85℃环境;
  2. LED驱动电源:小功率LED模组(台灯、广告灯)的输出过流保护,避免LED烧毁,自恢复特性减少维护成本;
  3. 消费电子配件:移动电源、无线充电器的输入/输出保护,应对充电浪涌与过流故障;
  4. 工业控制小模块:PLC模拟量接口、小型继电器驱动电路的过流保护,提升设备可靠性。

五、工作原理与可靠性优势

工作原理

PPTC核心为高分子聚合物+导电填料复合结构:

  • 正常工作时,温度低,导电填料形成连续通路,阻值低(≤90mΩ),不影响电路;
  • 过流时,焦耳热使聚合物膨胀,导电通路破坏,阻值急剧上升(最高400mΩ),限制电流;
  • 故障排除后,温度下降,聚合物收缩,通路恢复,器件自动复位。

可靠性优势

  1. 自恢复特性:故障解除后无需更换,减少维护成本与停机时间;
  2. 低功耗:初始低阻值使电路压降小,提升系统效率;
  3. 宽温稳定:-40℃~+85℃范围内参数变化小,适配严苛环境;
  4. 快速响应:500ms动作时间平衡保护速度与抗干扰;
  5. 小型化:2512封装适合高密度贴装,节省PCB空间。

六、选型与使用注意事项

  1. 选型匹配:电路正常电流≤1A、最大电压≤60V、浪涌电流≤50A;
  2. 焊接要求:回流焊峰值温度≤260℃(10秒内),避免高温损坏;
  3. 安装建议:靠近被保护元件安装,减少线路压降影响;
  4. 环境降额:+85℃时Ihold需降额至0.8A,确保保护可靠性;
  5. 禁止并联:多个器件并联会改变动作特性,导致保护失效。

该器件通过平衡保护性能与体积,为中低压电路提供了经济可靠的自恢复保护方案,适配多领域小型化设备需求。

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.