WMSIC Electronic Components

Brightking SMD1206B075TF/13.2 SMD1206B075TF

ModelSMD1206B075TF/13.2
Package1206
BrandBrightking
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMD1206B075TF / 13.2
Type
BRIGHTKING
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMD1206B075TF/13.2
Electronic Component
1
Electronic Component
1.8mm
Package
1206
Electronic Component
Resettable Fuse
Electronic Component
0.025g
Electronic Component
3.4mm
Electronic Component
1.6mm
Electronic Component
1
Electronic Component
200ms
Electronic Component
BM0257694871
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
13.2V
Power(Pd)
600mW

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

SMD1206B075TF/13.2 产品概述

SMD1206B075TF/13.2 是 Brightking(台湾君耀)推出的一款 1206 封装自恢复保险丝(PTC 型),专为低电压、需反复过流保护的表贴电路设计。器件在正常工作时呈低阻抗,通过过流时迅速升温增大阻值,从而限制电流并保护下游电路;故障消除后可自动冷却、恢复低阻状态,适合 USB、便携设备、电池管理与车载辅助电源等短路/过流保护场景。

一、主要参数概览

  • 耐压(Vmax):13.2 V
  • 最大电流(Imax):100 A(脉冲中断能力)
  • 保持电流(Ihold):0.75 A(750 mA)——在此电流下器件长期保持低阻态
  • 跳闸电流(Itrip):1.5 A——在此电流下器件在规定时间内跳断
  • 动作时间:约 200 ms(达到跳闸状态的典型时间)
  • 功率耗散(Pd):600 mW
  • 初始态阻值(Rmin):90 mΩ(初始低阻)
  • 跳断后阻值(R1max):350 mΩ(过热后高阻)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 尺寸:3.4 × 1.8 × 1.6 mm(1206 表面贴装封装)
  • 品牌/型号:Brightking(台湾君耀) SMD1206B075TF/13.2

二、产品特点与优势

  • 自恢复能力:无需更换熔断件,消除了维修更换的需求,适合难以拆卸或维护的产品。
  • 小尺寸高集成:1206 表贴封装适合现代紧凑型 PCB 布局,便于自动贴装与回流焊工艺。
  • 快速限流:在过流条件下能在约 200 ms 内迅速提高阻抗,保护下游器件免受持续高流损害。
  • 良好脉冲承受能力:高达 100 A 的瞬时中断能力,可承受短时间的浪涌电流。
  • 宽温度适应范围:-40 ℃ 到 +85 ℃,适用工业级与消费级环境。

三、典型应用场景

  • USB/外设电源保护(5 V/12 V 适配器及供电线路)
  • 电池组保护(适用于标称电压不超过 13.2 V 的单体/电池包旁路保护)
  • 通信设备、路由器与嵌入式主板的端口过流保护
  • 汽车电子辅助电源(非高压主电路)与车载配件保护(需与系统电压匹配)
  • 工业控制模块、楼宇自控等需要可重复保护的电路

四、设计与使用建议

  • 电流选型:长期工作电流应低于保持电流(Ihold = 0.75 A),以避免器件持续处于部分加热状态。若系统有较长时间的中等过流,建议选择 Ihold 更大的型号或采用并联/其他保护策略。
  • 电压匹配:器件最大工作电压为 13.2 V,确保实际电路工作电压及瞬态不会超过此值,否则可能导致器件失效。
  • 热管理:Pd 为 600 mW,实际功耗受过流幅度及环境温度影响。若频繁触发或环境温度高,应预留热量散逸空间、避免与热敏元件紧密堆叠。
  • PCB 布局:遵循 1206 表贴焊盘规范,保证合适焊盘尺寸与焊膏量以获得良好焊接强度与热传导;避免长导线或窄铜箔造成局部升温不均。
  • 回流焊:支持常规无铅回流焊工艺,建议遵循制造商的回流曲线与处理规范,避免过高温度或过长温度滞留导致材料性能退化。
  • 测试验证:在批量使用前应在目标系统中进行过流、热循环与长期老化试验,确认在实际负载与环境下的行为符合预期。

五、可靠性与维护

  • 自恢复次数:PPTC 类自恢复保险丝具有多次重复动作能力,但频繁触发会慢慢增加元件阻值并降低性能,应在设计中评估触发频率。
  • 储存与处理:避免潮湿、高温或强紫外照射环境,长时间储存应按常规电子元件存储规范(防潮、防静电)进行。
  • 异常排查:若出现高阻、频繁跳闸或在正常电流下温升明显,建议检查是否存在短路、接地错误或外部电压超标,并更换器件后再次验证。

六、选型注意事项

  • 若系统工作电压超过 13.2 V,需选择耐压更高型号或改用其他保护方案。
  • 对于需要更高保持电流或更短动作时间的场合,请参考 Brightking 其他系列或咨询供应商技术支持以获得合适的替代型号。
  • 在车规级或极端环境(高温、高湿、高振动)应用时,建议索取并审核制造商的完整可靠性报告与认证材料。

SMD1206B075TF/13.2 以其小巧的 1206 尺寸、自恢复特性与适配常见低压系统的电气参数,适合多类消费电子与工业控制的过流保护需求。选择与设计时请以实际系统电压、电流与热环境为依据,结合测试结果决定最终采用方案。

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