WMSIC Electronic Components

Littelfuse(美国力特) 36912000000

Model36912000000
PackageThrough-hole, P=5.08mm
BrandLittelfuse
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

20 specifications

Core information

Product name
Littelfuse 36912000000
Type
LITTELFUSE
Unit
Electronic Component
Minimum package
1400

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
36912000000
Electronic Component
1
Electronic Component
4mm
Package
Through-hole, P=5.08mm
Type
Fuse
Electronic Component
Non-Resettable Fuse
Electronic Component
0.557g
Electronic Component
8.5mm
Electronic Component
8mm
I2t
29
Pitch
5.08mm
Electronic Component
1
Electronic Component
50A
Electronic Component
BM0230872039

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

36912000000 产品概述

一、产品简介

36912000000 为 Littelfuse(美国力特)出品的一款方形插件保险丝,属 time-lag(慢熔/延时)类型,额定电流 2A,额定电压 300VAC。该器件设计用于对电路过流提供可靠保护,同时具备一定的抗浪涌能力,适合含有启动涌流或短时脉冲的电源和设备。

二、主要参数与电气特性

  • 类型:方形保险丝,time-lag(慢熔/延时)
  • 额定电流:2 A
  • 额定电压:300 V AC
  • 熔断 I2t:29(典型,单位常见为 A²s,用于评估熔断能量)
  • 分断能力(Interrupting Rating):50 A(断开短路电流的能力)
  • 工作温度范围:-40 ℃ 到 +85 ℃

time-lag 特性意味着在短时脉冲或启动浪涌时,保险丝不会立即熔断,适用于含有电容性或感性负载的电路。I2t 值可用于与热敏元件或被保护电路的耐受能量比较,评估熔断对系统的影响。

三、机械与封装信息

  • 尺寸(约):长 8.5 mm × 宽 4 mm × 高 8 mm
  • 引脚间距(P):5.08 mm(插件式,适合通孔 PCB 安装)
  • 封装形式:插件(穿孔安装),便于更换与维修

体积小巧,适合空间受限的面板或 PCB 布局;5.08 mm 的引脚间距与常用插座/夹持器件兼容,便于现场替换。

四、典型应用

  • 开关电源、适配器的输入侧保护
  • 照明设备(含有启动电容/镇流器)的过流保护
  • 小型电机、继电器及其他有短时启动电流的负载
  • 工业控制、电力电子模块及测试设备的短路与故障保护

五、选型与使用建议

  • 如需承受反复较大浪涌,请优先选用 time-lag(慢熔)类型;若电路不允许任何短时过流,应选用快速熔断型。
  • 长期连续工作时,建议考虑适度的电流裕量(常见做法为在额定值下留有一定余量),并参考厂方的温度-电流特性曲线进行选型与热设计。
  • 在高温环境或密闭空间内,保险丝的实际承载能力会下降,应按厂商提供的温度修正系数进行调整。
  • 使用前请核实 I2t 与系统允许的能量吸收能力是否匹配,确保在熔断过程中对下游器件的冲击在可接受范围内。

六、储存与装配注意事项

  • 避免潮湿、腐蚀性环境储存,长期存放请按厂商建议的条件保管。
  • 插件安装时避免在靠近保险丝的区域进行高温焊接或长时间热作用,遵循生产厂家的焊接和清洁工艺要求以保证可靠性。
  • 更换时不要直接触碰保险丝主体表面以免污染或损伤引脚,确保器件型号和电流等级完全一致。

七、采购与替代

  • 该产品由 Littelfuse 提供,适合需要高可靠性与品牌保证的工业与商用产品。
  • 如需替代,请确认替代件在额定电流、电压、time-lag 特性、I2t 和分断能力等关键参数上与 36912000000 匹配,并注意机械封装与引脚间距的兼容性。

如需该器件的完整数据表(datasheet)、温度-电流曲线或安装模板图,请提供联系方式或要求,我可帮助检索并提供对应技术文档。

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