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BLUE ROCKET 1N4148W
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BLUE ROCKET 1N4148W
- Type
- BLUE ROCKET
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BLUE ROCKET
- Electronic Component
- 1N4148W
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Switch Diode
- Electronic Component
- 0.031g
- Electronic Component
- 1
- Electronic Component
- BM0225825120
- Current
- 150mA
- Diode
- Electronic Component
- Current(Ir)
- 25nA@20V
- (Vf)
- 1V@10mA
- Power Dissipation(Pd)
- 400mW
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N4148W 产品概述
一、产品简介
BLUE ROCKET 1N4148W 是一款面向高速开关与通用整流的小信号二极管，采用 SOD-123 表贴封装，提供紧凑的尺寸与良好的热散能力。器件强调低正向压降与快恢复特性，适合高速脉冲、保护与小功率整流场合。
二、主要电气参数
- 二极管配置：独立式（单管）
- 直流反向耐压 Vr：75 V
- 平均整流电流 Io：150 mA
- 非重复峰值浪涌电流 Ifsm：2 A（瞬态，不可重复）
- 耗散功率 Pd：400 mW（最大）
- 正向压降 Vf：约 1.0 V @ 10 mA
- 反向电流 Ir：典型 25 nA @ 20 V；最大 5 μA @ 75 V（按说明书条件）
- 反向恢复时间 trr：8 ns（典型，适合高速开关）
三、封装与热特性
SOD-123 小型表贴封装便于高密度 PCB 布局，适用于自动贴片生产。由于 Pd 为 400 mW，在设计时需考虑封装与 PCB 散热能力，长期连续工作电流应按功耗与结-环境温度上升来降额使用，避免长时间接近最大耗散限值。
四、典型应用场景
- 高速开关电路与脉冲整流（反向恢复时间短，开关损耗低）
- 信号限幅与保护（过压钳位、输入保护）
- 低功率电源整流与整流桥中的小信号元件
- 通信设备、仪表与消费电子中的逻辑级保护与波形整形
五、使用建议与注意事项
- 连续电流：尽管标称平均整流电流为 150 mA，但考虑 Pd 与封装散热，应在实际 PCB 工况下适度降额，尤其在高环境温度下。
- 浪涌能力：Ifsm 为 2 A，适合短时浪涌吸收，但不可用于频繁、大能量冲击场合。
- 反向漏流：在高压（接近 75 V）工作时，反向漏流会上升，应评估对系统的影响，必要时增加旁路或选择更低漏电的型号。
- PCB 布局：为利于散热与稳固焊接，建议在焊盘附近保留铜面并避免聚集高热源元件；对高速开关路径做短回路、低电感布线以减少寄生影响。
- 库存与环境：避免在高湿、含腐蚀性气体环境长期存放，贴装前遵循潮湿敏感元件处理流程。
六、等效替代与采购建议
1N4148W 属于常见小信号开关二极管，市场上有多家厂商提供相近参数的替代品（关注 Vf、Vr、trr 与封装一致性）。采购时建议查看完整数据手册，确认测试条件（温度、电流点），并索取样品做实测验证。BLUE ROCKET 作为品牌标识，适合对成本与性能都有平衡需求的量产项目。
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