WMSIC Electronic Components

BHFUSE BSMD0805-005-24V BSMD0805

ModelBSMD0805-005-24V
Package0805
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BHFUSE BSMD0805-005-24V
Type
BHFUSE
Minimum package
5000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD0805-005-24V
Electronic Component
1
Electronic Component
1.5mm
Package
0805
Electronic Component
Resettable Fuse
Electronic Component
0.025g
Electronic Component
2.2mm
Electronic Component
0.9mm
Electronic Component
1
Electronic Component
1.5s
Electronic Component
BM0228072311
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
24V
Power(Pd)
500mW

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

BSMD0805-005-24V 产品概述

一、产品简介

BSMD0805-005-24V 为佰宏(BHFUSE)出品的一款微型自恢复过流保护元件,采用0805表贴封装(尺寸:2.2 × 1.5 × 0.9 mm)。器件针对低电压电路的连续过流与短路保护而设计,额定耐压为24V,适用于各类便携式、通信与车规低压外围电路中对板载过流保护体积和阻抗有严格要求的场合。

二、主要参数

  • 耐压(Vmax):24 V
  • 峰值承受电流(Imax):40 A(瞬态冲击能力)
  • 保持电流(Ihold):50 mA
  • 跳闸电流(Itrip):150 mA
  • 消耗功率(Pd):500 mW
  • 初始态阻值(Rmin):1.5 Ω
  • 跳断后阻值(R1max):20 Ω
  • 动作时间:1.5 s
  • 工作温度:-40 ℃ 至 +85 ℃
  • 封装:0805(2.2×1.5×0.9 mm)
  • 品牌:BHFUSE(佰宏)

三、性能特性

  1. 小尺寸、低占板面积:0805 封装方便高密度贴装与自动化生产,适合空间受限的移动设备和模块化电路。
  2. 可自恢复保护:在短路或过流故障消除后,器件能恢复低阻态,免去更换熔断器的维护成本。
  3. 快速动作与有效限流:在超过150 mA 时,典型动作时间约1.5 s,可在故障期间将电流受控限制,减少下游器件受损。
  4. 抗浪涌能力:可承受高达40 A 的瞬态冲击(短时脉冲),适配上电或负载突变场景。
  5. 宽温度范围:-40 到 +85 ℃ 的工作温度适合多数工业、消费类和车载环境。

四、典型应用

  • USB/OTG 端口与数据接口的过流保护
  • 电池管理与便携设备供电路径保护
  • 模块化电源与充电电路的板载保护
  • 工业与通信终端的低压外围保护场景

五、选型与使用建议

  1. 保持裕量:实际应用中建议保证正常工作电流低于 Ihold,且典型工作电流与 Itrip 有足够安全裕度,避免在临界区长期工作导致误动作或寿命降低。
  2. 温度影响:环境温度上升会降低器件的保持电流,应在高温工况下重新评估裕度并适当降额。
  3. 功耗与散热:Pd=500 mW 表示在给定条件下的额定功耗能力,持续高功耗可能使器件升温并影响动作行为,设计时应留意热耦合与周边器件散热。
  4. 冲击与浪涌:虽然器件具有短时40 A 的承受能力,但不建议将此作为长期工作值,必要时配合其他限流或吸收元件共同保护。

六、注意事项

  • 请根据实际电路环境(峰值电流、占空比、环境温度)进行可靠性验证测试。
  • 若对响应时间或保持/跳闸阈值有更严格要求,可联系供应商获取详细曲线与样品以便实验验证。
  • 避免长期处于接近 Itrip 的电流水平,以延长器件寿命并降低漂移风险。

七、总结

BSMD0805-005-24V 是一款体积微小、适用于低压场合的自恢复过流保护器件,凭借0805封装和良好的瞬态承受能力,适合用于USB、便携设备与模块化电源等对板级保护有空间与自动化贴装要求的场景。选型时应综合考虑工作电流、环境温度及功耗条件,确保器件在安全裕度内稳定工作。若需更详细的特性曲线或认证资料,建议联系佰宏(BHFUSE)获取官方数据手册与测试报告。

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