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DIOTEC 1N4148WS-AQ 1N4148WS
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DIOTEC 1N4148WS-AQ
- Type
- DIOTEC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DIOTEC
- Electronic Component
- 1N4148WS-AQ
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Switch Diode
- Electronic Component
- 0.022g
- Electronic Component
- 1
- Electronic Component
- BM0228561115
- Current
- 150mA
- Diode
- Electronic Component
- Current(Ir)
- 1uA
- (Vf)
- 855mV@10mA
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 55℃~+150℃@(Tj)
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N4148WS-AQ 产品概述
一、概述
1N4148WS-AQ 是 DIOTEC（德欧泰克）出品的独立式小信号开关二极管，采用 SOD-323 小外形封装（SOD-323F）。器件面向高速开关与小信号整流场景，具有低正向压降、快速恢复和较低反向漏电的特性，适用于高密度表贴电路板和温度要求苛刻的工业应用。
二、主要电气参数
- 封装：SOD-323（SOD-323F）
- 直流反向耐压 Vr：75V（部分资料/型号表述中也见 100V）
- 正向压降 Vf：典型 855 mV @ If = 10 mA
- 直流整流电流：150 mA
- 非重复峰值浪涌电流 Ifsm：1 A
- 反向电流 Ir：典型 1 μA
- 反向恢复时间 Trr：约 4 ns（高速开关特性）
- 功耗 Pd：200 mW
- 工作结温范围 Tj：-55 ℃ ～ +150 ℃
三、特点与优势
- 小封装、适合高密度贴片设计，节省 PCB 空间。
- 快速恢复时间（≈4 ns），适合高频开关和脉冲信号处理。
- 低正向压降和低反向漏电，保证小信号传输时的低损耗与高精度。
- 宽工作结温范围，满足工业级温度要求。
- 合理的浪涌承受能力（1 A 峰值）适合瞬态事件或短时冲击。
四、典型应用场景
- 数字电路中的开关、逻辑保护与电平转换。
- 高频脉冲整形、采样保持及混频器电路。
- 通信、测试与测量设备中的信号整流与钳位。
- 工业控制板与汽车电子（需按具体反向耐压和温度等级确认）。
五、设计与使用建议
- 功耗与温升：封装功耗 200 mW，为保证长期可靠性，应对环境温度与铜箔散热进行适当设计，必要时做功耗降额（derating）。
- 电流限制：连续工作电流不应长期接近 150 mA 极限，应留裕量；峰值浪涌 1 A 仅限短时冲击。
- 反向耐压确认：若电路存在超过 75 V 的反向应力，应核对器件批次/替代型号（部分 1N4148 系列标称 100 V 版本）。
- 高频开关注意：虽然 Trr ≈4 ns，但在极高频或严格脉冲要求下需验证反向恢复对系统的影响（例如会引入瞬态电流尖峰）。
- 焊接与可靠性：遵循 SMD 焊接工艺曲线，避免长时间高温暴露；储存与贴装按常规无铅回流工艺处理。
- 极性识别：正确识别阴阳极，避免反向装配导致元件损坏。
六、结论
1N4148WS-AQ 以其小巧的 SOD-323 封装、快速恢复与低漏电特性，适合多数高速开关和小信号处理场合。设计时需关注功耗散热与反向耐压要求，并依据实际工作电流与工作温度做合适降额，从而获得稳定且长期可靠的电路表现。若有更严格的耐压或更高电流需求，可在同系列或相近型号中选择更高额定项的替代产品。
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