Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
AOTE PC817A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- AOTE PC817A
- Type
- AOTE
- Minimum package
- 100 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- AOTE
- Electronic Component
- PC817A
- Electronic Component
- 1
- Package
- DIP-4
- Electronic Component
- Transistor Output Optocoupler
- Electronic Component
- 0.38g
- Electronic Component
- 1
- Electronic Component
- 3us
- Electronic Component
- BM0229305980
- 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.
PC817A（AOTE 奥特）光电隔离器 产品概述
一、产品简介
PC817A 为单通道光电三极管型隔离器（光耦），由红外发光二极管与光敏三极管封装在同一DIP-4外壳内。此器件提供高达5kVrms的输入—输出绝缘能力，并兼顾较高的电流传输比（CTR），适用于电平隔离、信号传输和开关反馈等应用。
二、主要特点
- 隔离电压：5 kVrms（高电压抗绝缘要求场景）
- 电流传输比（CTR）：最小80%，典型/最大可达160%（随If与测试条件变化）
- 输入正向压降 Vf ≈ 1.2V，最大正向电流 If = 50mA（推荐常用工作电流远低于极限）
- 输出类型：光电三极管，最大集电电流约 50mA，集电-发射极耐压（VCEO）80V
- 集射极饱和电压 VCE(sat) 约 200mV（在测试开关条件下，例如 If = 20mA、Ic ≈ 1mA）
- 上升/下降时间：tr ≈ 18μs，tf ≈ 3μs（属中速开关类型）
- 工作温度范围：-55℃ ～ +110℃
- 封装：DIP-4，单通道
三、典型应用场景
- MCU 与高电压部分的逻辑隔离与接口转换
- 开关电源反馈隔离（欠压/过压检测）
- 电机驱动、继电器驱动信号隔离
- 工业控制、PLC 输入输出隔离
四、封装与引脚
- 标准 DIP-4 封装，适合通孔焊接与手工调试，便于替换与量产PCB布局。
- 建议在PCB布局时为输入侧添加合适的限流电阻并留出绝缘爬电距离，以满足5kV隔离要求。
五、设计与使用要点
- 限流电阻计算示例（5V MCU 驱动，目标 If = 2mA）：R = (5V − Vf)/If ≈ (5 − 1.2)/2mA ≈ 1.9kΩ。
- CTR 受温度、If 与器件散差影响，设计时以最小 CTR（80%）进行保守计算，确保在最差条件下仍能满足下游逻辑电平或电流需求。
- 由于上升时间较长，PC817A 适合低速或中速信号隔离；对高频或脉冲精确需求，应考虑高速光耦或数字隔离器。
- 注意热耗散与长时间工作寿命，尽量避免持续在 If 或输出 Ic 的极限值附近工作。
六、注意事项
- 器件最高正向电流与最大集电电流分别为 50mA，长期工作时应留裕量以防老化或热失配。
- 进行高压隔离测试时，严格按照规范进行升压、泄放与绝缘测试，避免对封装或周边工艺造成破坏。
- 在存在较大共模干扰场景下，输出端需配合滤波/弱滞回电路，提高抗干扰性。
PC817A（AOTE 奥特）以其良好的隔离性能与稳定的CTR表现，适合多数通用隔离场合。合理的限流、退耦与PCB布线可确保长期可靠工作。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
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
Packaged components ready for RFQ.
1 Piece Integrated Circuit for IRS20124S IRS21956S SOP-20 IRS2453DS SOP-14
- Model
- IRS20124S
- Package
