WMSIC Electronic Components

BHFUSE BSMD1812-110-16V BSMD1812

ModelBSMD1812-110-16V
Package1812
BrandBHFUSE
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BHFUSE BSMD1812-110-16V
Type
BHFUSE
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1812-110-16V
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.105g
Electronic Component
4.73mm
Electronic Component
1mm
Electronic Component
1
Electronic Component
300ms
Electronic Component
BM0257686107
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
16V
Power(Pd)
800mW

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

BSMD1812-110-16V 产品概述

一、产品简介

BSMD1812-110-16V 是佰宏(BHFUSE)推出的一款1812封装自恢复式聚合物PTC保险器,额定耐压16V,专为低压直流电源保护设计。器件尺寸为4.73 × 3.41 × 1.00 mm,适合SMD贴片工艺,适用于消费电子、通讯设备与便携电源等需要过流自恢复保护的场合。

二、主要电气参数

  • 最大工作电压(Vmax):16V
  • 最大短时承受电流(Imax):100A
  • 保持电流(Ihold):1.1A(器件在正常工作时允许通过的连续电流)
  • 跳闸电流(Itrip):2.2A(在该电流下器件受热膨胀并进入高阻态)
  • 功耗(Pd):800mW(稳态功耗参考)
  • 初始态阻值(Rmin):45 mΩ
  • 跳断后阻值(R1max):250 mΩ(进入高阻态后的最大阻值)
  • 动作时间:约300 ms(在规定过流条件下的典型响应时间)
  • 工作温度范围:-40℃ ~ +85℃

三、产品特性与优势

  • 自恢复:过流或短路发生时自动进入高阻态限制电流,故障消除后自动恢复,免维护。
  • 低初始电阻:45 mΩ 起,正常工作时功耗与电压降小,降低发热与能量损耗。
  • 小型SMD封装:1812 尺寸便于自动贴装,节省PCB空间。
  • 高脉冲承受能力:短时可承受高达100A 的冲击电流,适合抑制启动电流或短时浪涌。

四、典型应用场景

  • USB、充电器与移动电源的过流保护
  • 路由器、机顶盒、消费电子主板的局部电源保护
  • LED 驱动与背光电源的短路抑制
  • 电池管理与便携设备电源输入处的自恢复保护(需注意工作温度与电压范围)

五、选型与使用建议

  • 环境温度影响:高温会降低器件保持电流,设计时应留有余量并考虑可靠的散热路径。
  • 能耗与电压降:初始阻值虽低,但在较高电流下仍会产生显著压降,需评估对负载的影响。
  • 布局建议:靠近被保护电源输入处串联放置,避免与热源近贴,确保良好焊点和散热。
  • 验证测试:在最终产品中做实际的启动浪涌、短路和热耦合测试,确认动作特性与恢复性能满足系统需求。

六、注意事项与可靠性

BSMD1812-110-16V 适合反复动作的场景,但并非针对高能量故障的熔断式保护替代品。在需要一次性断开高能短路或更高工作温度(如发动机舱)的应用,应慎重评估或选择相应等级的保护器件。建议在产品开发阶段进行温度循环、过流寿命与焊接可靠性测试,确保长期稳定性。

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.