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UMW PS2501-S PS2501
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UMW PS2501-S
- Type
- UMW
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- UMW
- Electronic Component
- PS2501-S
- Electronic Component
- 1
- Package
- SOP-4
- Electronic Component
- Transistor Output Optocoupler
- Electronic Component
- 0.395g
- Electronic Component
- 1
- Electronic Component
- 5us
- Electronic Component
- BM0226578630
- Operating Temperature
- 55℃~+100℃
- 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.
PS2501-S 产品概述
一、产品简介
PS2501-S 是 UMW（友台半导体）出品的一款单通道晶体管输出光耦，采用 SOP-4 封装，输入端为直流 LED，输出端为光电三极管。器件设计用于在信号隔离场合提供可靠的电气隔离与电平传递，具备较高的 CTR 和良好的开关特性，适合数字信号与中低速模拟隔离应用。
二、主要特性
- 输入正向压降 (Vf)：典型 1.17 V（在推荐驱动条件下）。
- 最大正向电流 (If)：80 mA（绝对最大值，请按额定条件使用）。
- 输出集电极电流：可达 50 mA（实际使用时依赖于 If 与负载）。
- 隔离耐压：5 kVrms（输入-输出，典型耐压等级）。
- 负载电压 (VCEO)：最高 80 V。
- 直流反向耐压 (Vr)：6 V。
- 电流传输比 (CTR)：最小 80%，最大/饱和值可达 600%。
- 集射极饱和电压 VCE(sat)：约 300 mV（厂方标准测试点下）。
- 开关速度：上升时间 tr ≈ 3 μs，下降时间 tf ≈ 5 μs。
- 工作温度范围：-55 ℃ ~ +100 ℃。
- 单通道，SOP-4 封装，便于 PCB 布局与自动化贴装。
三、电气特性与使用要点
PS2501-S CTR 范围很宽，意味着在不同 If 下输出电流变化明显，设计时应以最小 CTR（≥80%）估算最坏情况输出以确保可靠触发。VCE(sat) 低（约 0.3 V），有利于开关饱和时减小功耗。输入侧需串联限流电阻以控制 If，不要长期接近 If 最大值以免加速 LED 老化。输出侧在高电压或大电流工作时注意功耗与热散。
四、典型应用
- MCU 与高压/噪声侧之间的数字隔离接口（UART、GPIO 等）。
- 开关电源的初/次级反馈隔离。
- 电平转换与继电器驱动前端隔离。
- 工业控制、仪表与家电控制板中的信号隔离。
五、封装与可靠性
SOP-4 小型封装适合密集布局和自动化生产。器件通过高压绝缘测试（5 kVrms），能满足常见工业级隔离要求。工作温度覆盖 -55~+100 ℃，满足多数工业与消费级应用的温度耐受性。
六、选型与注意事项
- 若需更高速响应或对 CTR 要求极小散布，应选用专用高速/线性光耦。
- 在电路设计时按最小 CTR 与最大负载计算，预留安全裕量。
- 对于长时间高 If 工作，建议降额使用（例如取 If 的 50% 左右）以延长寿命。
- 遵守 PCB 安装间隙与气隙规范，保证隔离等级实现。
总结：PS2501-S 提供了高 CTR、较大输出驱动能力和良好的耐压特性，是一款性价比较高的通用型晶体管输出光耦，适用于多种中低速信号隔离场合。
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