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KUU F12TH5
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU F12TH5
- Type
- KUU
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- F12TH5
- Electronic Component
- 1
- Electronic Component
- 1.6mm
- Package
- 1206
- Type
- SMD Fuse
- Electronic Component
- Non-Resettable Fuse
- Electronic Component
- 0.045g
- Electronic Component
- 3.2mm
- Electronic Component
- 0.7mm
- I2t
- 4
- Electronic Component
- 1
- Electronic Component
- 50A@72VDC；50A@63VDC；50A@32VDC
- Electronic Component
- BM0264356218
- Operating Temperature
- 55℃~+125℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
F12TH5 — KUU 5A / 72V 高压慢熔贴片保险丝（1206）
一、产品概述
F12TH5 是 KUU 推出的厚膜陶瓷基板制造的慢熔高压贴片保险丝，外形尺寸仅 3.20mm × 1.6mm × 0.7mm（1206 封装），专为直流系统的过流保护设计。器件采用陶瓷载体与厚膜工艺，兼具耐热、耐冲击和防火性能，适用于狭小空间的工业、通信和汽车电子等高压应用场景。
二、主要特点
- 小型化：1206（3.2×1.6mm）封装，节省 PCB 面积。
- 慢熔（Time‑Delay）：对浪涌电流有一定容忍能力，减少误动作。
- 高压等级：额定电压高达 72V，适用更高直流系统。
- 高分断能力：50A 分断能力（50A@72VDC、50A@63VDC、50A@32VDC），能在故障时安全切断回路。
- 宽温区间：工作温度 -55℃ ~ +125℃，适合严苛环境。
- 耐热耐冲击：厚膜与陶瓷结构提供良好机械强度和热稳定性。
- 熔断 I2t 低（标称 4），便于限制故障能量。
三、电气与机械参数（主要指标）
- 类型：贴片式保险丝（慢熔）
- 额定电流：5A
- 额定电压：72VDC
- 分断能力：50A@72VDC；50A@63VDC；50A@32VDC
- 熔断能量 I2t：4（标称）
- 工作温度：-55℃ ~ +125℃
- 外形尺寸：长 3.20mm × 宽 1.60mm × 高 0.7mm（1206）
- 基材与工艺：厚膜制造，陶瓷基板
四、典型应用
- 电源输入防护与分支保护（72V 以下直流系统）
- 通信设备电源模块、基站设备
- 工业控制装置、机器人驱动电源保护
- 汽车/商用车车载电子（符合电压等级时）
- 电池管理系统（配合整体保护策略使用）
五、安装与焊接建议
- 建议按照常见 1206 封装焊盘设计，保证焊点热容量和焊料覆盖良好。
- 回流焊建议参考 J-STD-020 曲线，峰值温度 245–260℃，液相线以上时间 30–60s；避免多次重复高温暴露导致寿命下降。
- 手工焊接时应缩短加热时间并控制温度，避免直接在器件上进行长期加热。
- 安装后如需检测，建议在断电状态下进行以防误触发熔断。
六、使用与可靠性建议
- 连续工作时建议考虑环境温升与散热，设计裕量或按额定电流的 75% 左右作选型参考，以提升可靠性。
- 保险丝为一次性保护元件，熔断后必须更换相同规格器件。
- 在高浪涌环境中配合限流器或软启动电路使用，可减少保险丝不必要的动作。
- 存储与运输避免潮湿、高温与机械冲击，出厂前尽量保持原包装状态。
F12TH5 以其超小体积、高压等级和可靠的分断能力，适合对空间与性能有双重要求的直流保护场景。根据目标系统的工作电流、浪涌特性和环境温度，合理选型与布局可获得稳定而长寿的过流保护效果。
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