Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PS2501 是友台半导体(UMW)推出的一款晶体管输出型光电耦合器,输入为直流 LED,输出为光电三极管隔离型开关。器件以低正向压降、较高隔离耐压和宽工作温度范围为主要特征,适合直流信号隔离、逻辑电平转换以及中低速开关应用。封装为常见的 DIP-4 直插形式,便于工程样机与批量安装。
PS2501 在常见的工作条件下具有较低的输入压降和合理的 CTR,便于在有限驱动电流下实现较大输出。VCE(sat) 典型值 0.3 V 意味着在饱和导通时输出端的压降小,可降低功耗。需要注意 CTR 有较宽的范围(80%–600%),这是光耦固有特性,实际电路设计时应按最坏情况(低 CTR)预留足够的驱动裕量或采用反馈校准方法。上升/下降时间在微秒级,适合数据率不高的隔离信号(例如开关监测、PWM 反馈回路、控制信号)。
DIP-4 通孔封装便于手工焊接与波峰焊批量工艺,机械强度与散热性能适中。UMW 的光耦设计兼顾隔离可靠性与耐压能力,隔离电压 5 kV 能满足多数工业与消费类隔离需求。对长期可靠性要求高的应用,建议在样机阶段做加速老化与温度循环测试。
总结:PS2501 以其低 Vf、较高隔离电压与中等速率响应,适合各类中低速隔离信号场合。设计时重点关注 CTR 的变动范围、LED 驱动电流与输出上拉电路的配合,以实现稳定可靠的隔离传输。
Request for quote
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products