WMSIC Electronic Components

JDTfuse ASMD0805-100-16V ASMD0805

ModelASMD0805-100-16V
Package0805
BrandJDTfuse
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
JDTfuse ASMD0805-100-16V
Type
JDTFUSE
Minimum package
4000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JDTFUSE
Electronic Component
ASMD0805-100-16V
Electronic Component
1
Electronic Component
1.25mm
Package
0805
Electronic Component
Resettable Fuse
Electronic Component
0.033g
Electronic Component
2mm
Electronic Component
1
Electronic Component
300ms
Electronic Component
BM0265001251
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
16V
Power(Pd)
600mW
Current(Imax)
100A

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

ASMD0805-100-16V 产品概述

ASMD0805-100-16V 是 JDTfuse(集电通)推出的一款小型片式自恢复保险(PTC/resettable fuse),采用 0805 封装,针对便携电子、接口防护和板级电源保护等场景设计。产品具有体积小、初始阻抗低、瞬态耐受能力强和动作可靠等特点,兼顾稳定性与性价比,适合大量使用于空间受限且需要重复保护的电路中。

一、电气与机械主要参数

  • 耐压 (Vmax):16 V
  • 最大瞬时电流 (Imax):100 A(可承受短时冲击)
  • 保持电流 (Ihold):1.0 A(在规定环境温度下可长期通过的电流)
  • 跳闸电流 (Itrip):1.95 A(典型动作电流)
  • 功耗 (Pd):600 mW(参考稳态功耗/温升条件)
  • 初始态阻值 (Rmin):40 mΩ(冷态导通时的低电阻)
  • 跳断后阻值 (R1max):230 mΩ(保护动作后限制电流的电阻上限)
  • 动作时间:300 ms(在超过 Itrip 条件下达到限制态所需时间)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 封装尺寸:0805(长度 2.0 mm × 宽度 1.25 mm)
  • 品牌:JDTfuse(集电通)
  • 特性描述:品质稳定,性价比高

二、工作原理与性能特点

ASMD0805-100-16V 基于聚合物正温度系数材料制成,当电路工作电流超过其设定的跳闸电流(Itrip)时,元件自热使材料电阻急剧上升,从而限制电流,起到保护作用。故障消除后材料冷却,电阻恢复初始低阻态,实现自恢复功能。

主要特点包括:

  • 低阻值损耗:Rmin 仅 40 mΩ,在正常工作下对电源线路影响小,适合对压降敏感的应用。
  • 快速响应:约 300 ms 的动作时间,可迅速抑制短路或严重过流情况。
  • 高冲击能力:可承受短时高达 100 A 的冲击电流,适合电流突变场合。
  • 自恢复:跳闸后阻值 R1max ≤ 230 mΩ,故障清除后自动复位,便于重复使用和减少维护。
  • 宽温适应性:-40 ~ +85 ℃,满足大多数消费、工业环境需求。

三、典型应用场景

  • USB 与接口保护:USB、HDMI、音频接口等在短路或误接时提供可靠保护。
  • 移动设备与便携电源:智能手机配件、蓝牙设备、移动电源等对体积与效率要求高的产品。
  • 主板与模块电源轨:为 5V、12V 等低压电源轨(确保不超过 16V)提供板级过流保护。
  • LED 驱动与背光保护:限制短路电流,保护 LED 驱动器和灯串。
  • 工业/仪器仪表:输入电源防短路保护,减少维修频次。

四、选型与应用建议

  • 电压裕量:Vmax 为 16 V,使用时应确保系统工作电压低于此值并留有裕度。
  • 电流匹配:选择时 Ihold 应高于器件正常工作电流,避免在正常瞬态条件下误动作;Itrip 应低于可接受的短路电流。
  • 热环境考量:Pd(600 mW)为参考值,具体热性能受 PCB 散热条件、周围元件及环境温度影响,必要时进行实测或采用更大规格。
  • 布线与焊接:0805 小体积,建议采用规范化回流焊工艺,焊盘设计与热阻匹配有助于实现标称性能。避免在过高的机械应力下使用,防止焊点裂纹。
  • 测试验证:在目标系统中进行 I-V 曲线、动作时间与复位特性测试,确认在实际工作条件下的可靠性。

五、可靠性与质量保证

JDTfuse(集电通)针对 ASMD0805-100-16V 提供出厂筛选与质量控制,产品通过常规环境与老化试验,可适应长期循环的自恢复保护需求。为确保长期可靠性,建议在 PCB 设计阶段考虑热流管理与合理去耦,避免长期高温工作点。

六、小结

ASMD0805-100-16V 是一款适合板级、接口与便携设备的 0805 片式自恢复保险,特点为初始阻值低、动作迅速、瞬态耐受高、工作温度范围宽,且性价比较高。选型时请结合系统最大工作电压、正常工作电流和热环境进行确认,以充分发挥其保护效果。若需进一步的规格书、曲线图或样品评估建议联系供应商获取详细数据资料。

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