WMSIC Electronic Components

JDTfuse ASMD1206-100 ASMD1206

ModelASMD1206-100
Package1206
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 ASMD1206-100
Type
JDTFUSE
Minimum package
3500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JDTFUSE
Electronic Component
ASMD1206-100
Electronic Component
1
Electronic Component
1.9mm
Package
1206
Electronic Component
Resettable Fuse
Electronic Component
0.042g
Electronic Component
3.6mm
Electronic Component
0.8mm
Electronic Component
1
Electronic Component
300ms
Electronic Component
BM0265001236
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
6V
Power(Pd)
600mW

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

JDTfuse ASMD1206-100自恢复保险丝产品概述

一、产品定位与典型应用场景

ASMD1206-100是集电通(JDTfuse)推出的1206贴片封装自恢复保险丝,核心针对低压、高密度电路的过流保护需求设计,体积小巧、可重复使用,适配对空间敏感的小型化设备。典型应用包括:

  • 消费电子:智能手机/平板的电池保护、USB接口过流防护;
  • 便携设备:智能手环、蓝牙耳机的电源回路;
  • 低压工业:小型传感器、微型控制器的过流保护;
  • 车载附件:12V以下车载小设备(如点烟器适配器)的过流防护(需匹配≤6V电压)。

二、核心电气参数深度解析

该产品参数平衡了保护灵敏度与耐浪涌能力,关键指标如下:

1. 保护电流特性

  • 保持电流(Ihold):1A(电路正常工作电流≤1A时不动作);
  • 跳闸电流(Itrip):1.8A(电流超1.8A时触发保护);
  • 最大动作时间:300ms(过流后300ms内响应,避免负载损坏)。

2. 阻值与功耗

  • 初始阻值:最小55mΩ(导通损耗极低,1A工作时压降仅0.055V,适配6V低压系统);
  • 跳断后阻值:最大270mΩ(故障时限制电流≤6V/0.27Ω≈22.2A,故障消除后自动恢复低阻);
  • 最大消耗功率:600mW(1A工作时仅55mW,余量充足)。

3. 电压与环境耐受

  • 最大额定电压:6V(直流/交流通用,禁止超压使用);
  • 最大峰值电流:100A(可承受开机浪涌、静电冲击,不损坏);
  • 工作温度:-40℃~+85℃(宽温范围,满足户外/车载高低温场景)。

三、封装特性与安装适配性

采用1206标准贴片封装(尺寸约3.2mm×1.6mm×0.8mm),具备以下优势:

  • 体积小巧:适配高密度PCB布局,适合小型化设备;
  • 贴装兼容:支持回流焊(峰值≤260℃,时间≤10s)、波峰焊(温度≤250℃,时间≤5s),便于自动化生产;
  • 重量轻:约0.05g,对设备整体重量影响极小。

四、工作原理与可靠性优势

基于聚合物正温度系数(PPTC)材料,工作原理简单可靠:

  • 正常状态:PPTC呈结晶态,阻值低(55mΩ左右),不影响电路;
  • 过流触发:电流超跳闸电流时,焦耳热使PPTC相变,阻值急剧上升,限制电流保护负载;
  • 故障恢复:故障排除后,PPTC降温恢复低阻,无需更换(典型重复动作次数≥1000次)。

可靠性经测试验证:

  • 宽温稳定性:-40℃~+85℃内,保护参数无明显漂移;
  • 浪涌耐受:100A峰值冲击后性能无衰减;
  • 动作一致性:批量产品动作时间偏差≤±10%。

五、选型与使用注意事项

1. 选型匹配要点

  • 保持电流>电路最大正常工作电流(如电路0.9A,选1A);
  • 跳闸电流>电路最大正常峰值电流(如电路1.6A,选1.8A);
  • 额定电压匹配电路工作电压(≤6V)。

2. 使用禁忌

  • 禁止超6V电压使用,避免PPTC击穿;
  • 避免靠近发热元件(如功率管),防止误触发;
  • 故障排除后,需等待30分钟(PPTC降温至室温)再恢复工作;
  • 不建议并联使用(保持电流增加但动作特性不稳定)。

总结

ASMD1206-100是一款专为低压小型化设备设计的高性价比自恢复保险丝,参数平衡合理,可靠性强,可重复保护特性降低了维护成本,是消费电子、便携设备等场景的理想过流防护方案。

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