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AOTE PC357B
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- AOTE PC357B
- Type
- AOTE
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- AOTE
- Electronic Component
- PC357B
- Electronic Component
- 1
- Package
- SOP-4
- Electronic Component
- Transistor Output Optocoupler
- Electronic Component
- 0.232g
- Electronic Component
- 1
- Electronic Component
- 3us
- Electronic Component
- BM0230039168
- Operating Temperature
- 55℃~+110℃
- Load Voltage
- 80V
- Type
- DC
- Output Current
- 50mA
- Output Type
- Photoelectric Transistor
- Output Channel Count
- 1
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PC357B 光电耦合器（AOTE 奥特）产品概述
一、产品简介
PC357B 是 AOTE（奥特）出品的一款单通道光电三极管输出光耦，采用 SOP-4 封装，面向工业控制、通信与电源隔离信号传输场景。器件提供高达 3.75kVrms 的输入/输出隔离电压，兼具大电流传输比（CTR）与较低的饱和压降，适合做逻辑信号隔离及中低速数字/模拟隔离应用。
二、主要特点
- 隔离电压（Viso）：3.75 kVrms，满足常见隔离等级要求。
- 电流传输比（CTR）：最小 130%，最大（饱和值）260%，传输效率高，灵敏度好。
- 输入特性：正向压降 Vf ≈ 1.2V（典型），正向电流 If 最大 50mA。
- 输出特性：光电三极管，最大输出电流可达 50mA；负载电压最高 80V。
- 饱和电压：VCE(sat) ≈ 200mV（典型测试条件下，如 IF/IC 标准测试配置）。
- 响应速度：上升时间 tr ≈ 4μs，下降时间 tf ≈ 3μs，适合中速信号隔离。
- 工作温度范围：-55℃ 至 +110℃，适应恶劣环境。
- 封装：SOP-4，单通道，便于 PCB 布局与批量生产。
三、典型应用
- MCU 与隔离侧外设的数字信号隔离（GPIO、脉冲信号）。
- 开关电源及驱动板的控制信号隔离。
- 工业现场总线接口、传感器信号隔离。
- 通信设备、仪器仪表的低/中速数据隔离。
四、使用建议
- 输入侧应串联限流电阻以控制 If（建议按 Vf 与目标 If 计算）。
- 输出侧通常采用上拉电阻到目标逻辑电平，若驱动较大负载需确认 IC 与功耗。
- 对于需要最快响应的场合，关注器件的 tr/tf 限制并验证在目标 If/IC 条件下的延迟。
- 安装与焊接遵循 SOP-4 封装的回流焊工艺规范，避免过热和湿度相关失效。
- 存储与使用时注意静电防护与端子清洁，确保长期可靠性。
五、质量与选型要点
选择 PC357B 可在保证高隔离电压的同时获得较高 CTR 与较低 VCE(sat)，利于降低驱动电流和提高系统噪声裕度。若需更高速度或双通道隔离，请对比其他型号或咨询供应商获取更详尽的测试曲线与样品测试。
若需技术资料（典型电气特性曲线、引脚图、封装尺寸及回流曲线）或样品评估，请联系 AOTE（奥特）授权渠道获取完整数据手册与支持。
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