WMSIC Electronic Components

BORN SMD1206-200/12N

ModelSMD1206-200/12N
Package1206
BrandBORN
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
BORN SMD1206-200 / 12N
Type
BORN
Minimum package
3500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
SMD1206-200/12N
Electronic Component
1
Electronic Component
1.8mm
Package
1206
Electronic Component
Resettable Fuse
Electronic Component
0.04g
Electronic Component
3.4mm
Electronic Component
1.3mm
Electronic Component
1
Electronic Component
500ms
Electronic Component
BM0258880919
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
12V
Power(Pd)
800mW

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

SMD1206-200/12N — BORN(伯恩)1206 封装表面贴装熔断器 产品概述

一、产品简介

SMD1206-200/12N 是 BORN(伯恩半导体)推出的一款 1206 封装表面贴装熔断器(Fuse),用于电路过流保护与短路保护。该器件体积小、低阻抗、适合自动贴装与回流焊工艺,常用于 12V 及以下电源系统的过流保护。凭借明确的保持电流与跳闸电流规格以及较低的初始电阻,适合对体积、效率和可靠性有要求的消费电子、通信设备与便携电源等场景。

二、主要技术参数

  • 型号:SMD1206-200/12N
  • 品牌:BORN(伯恩半导体)
  • 封装:1206(SMD)
  • 外形尺寸:长度 3.4 mm × 宽度 1.8 mm × 高度 1.3 mm
  • 最大耐压(Vmax):12 V
  • 最大电流(Imax):40 A(指器件可承受的短时浪涌/最大中断能力,具体以厂方试验条件为准)
  • 保持电流(Ihold):2 A(持续不发生跳闸的最大电流)
  • 跳闸电流(Itrip):4 A(在规定时间或条件下会动作的过流值)
  • 动作时间:约 500 ms(在 Itrip 条件下的典型动作时间)
  • 消耗功率(Pd):800 mW(在特定散热/环境条件下器件可耗散的功率)
  • 初始态阻值(Rmin):18 mΩ
  • 跳断后阻值(R1max):100 mΩ(动作后残余阻值上限)
  • 工作温度范围:-40 ℃ ~ +85 ℃

三、性能与特点

  • 体积小,1206 标准封装,适合自动贴装与回流焊,便于批量生产。
  • 低初始电阻(约 18 mΩ),在保持电流下电压降与功耗较低,有利于电源效率与发热控制。举例:在 2 A 连续电流下电压降约 36 mV,耗散约 72 mW。
  • 明确的保持电流(2 A)与跳闸电流(4 A),利于工程师在电路中精确匹配保护阈值。
  • 跳闸时间约 500 ms,属于中等延时特性,能兼顾抑制瞬态浪涌和可靠动作。
  • 工作温度范围广,适应常见消费与工业环境(-40 ℃ ~ +85 ℃)。
  • 跳断后阻值上限 100 mΩ,有助于在跳断后隔离电源,减少残余电流。

四、典型应用场景

  • 移动电源、充电宝电路和锂电池保护模块(12 V 及以下系统)。
  • 消费电子设备和家用电器内部电源保护(路由器、机顶盒、音响等)。
  • 通信设备和小型基站、交换设备的模块级过流保护。
  • 汽车电子辅助电路(注意:整车高温或严格汽车级要求需确认是否满足更高温度与认证)。
  • USB/外设电源分支保护、负载短路保护。

五、选型与电路设计建议

  • 连续工作电流应主要参考 Ihold(2 A),长期持续电流建议低于 Ihold,并留有裕度以应付环境温升与器件老化。
  • 过流动作设计以 Itrip(4 A)为参考,若系统允许更短的动作时间或更高动作电流,应选用不同特性的熔断器。
  • 对于存在短时间较大浪涌(如电机启动、电容充电)的电路,SMD1206-200/12N 的 40 A 短时承受能力能抵抗瞬态冲击,但具体选择仍需结合浪涌波形与次数。
  • 布板时尽量将熔断器布局在电源入口处,确保在组件或下游故障时优先被保护。注意散热走线与铜箔面积,器件功耗 Pd(800 mW)与环境散热能力直接影响工作温升与动作特性。
  • 若电路需重复动作后自动恢复,熔丝(一次性)与自恢复型 PTC 不同,需确认产品为一次熔断型还是可复位类型;SMD1206-200/12N 为熔断器,跳断后需更换。

六、使用、焊接与贮存注意事项

  • 推荐采用标准回流焊工艺,遵循无铅/有铅回流温度曲线(以厂方回流规范为准)。
  • 避免在回流或手工焊接时对器件施加机械挤压或过度加热。
  • 存储环境建议干燥、避免阳光直射与剧烈湿度变化,长期存放应按电子元器件存储规范(防潮包装)。
  • 打样或更换时注意观察跳断后阻值(R1max)以确认是否完全断开。

七、可靠性与检测建议

  • 在产品验证阶段,应做温升测试、老化测试与过流动作测试,验证在目标 PCB 布局与环境下的实际动作电流与时间。
  • 对关键应用(医疗、汽车等)建议进行更严格的环境应力筛选与寿命评估。
  • 跳断后建议检查周边电路是否因高温或弧光受损,并替换熔断器以保证后续测试结果准确。

八、包装与订购信息

  • 标准 1206 SMD 包装,适配自动贴片机。
  • 订货型号:SMD1206-200/12N(BORN)—— 采购时请确认批次与技术说明书(Datasheet),以获取最新的试验条件与额定参数。

总结:SMD1206-200/12N 以其低阻抗、小体积和明确的动作参数,适合在 12V 级别电源中作为模块级或分支级过流保护元件。选型时应结合实际热环境、浪涌波形和系统连续电流做全面评估,并参考厂方 Datasheet 与测试数据进行最终确认。

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