內容編輯SHARP光耦pc817資料
PC817光電耦合器廣泛用在電腦終端機，可控硅系統設備，測量儀器，影印機，自動售票，家用電器如風扇，加熱器等。 電路之間的信號傳輸，使前端與負載完全隔離，目的在于增加安全性，減小電路干擾，減化電路設計。
特點：1.電流傳輸比：(CTR: MIN. 50% at IF=5mA ,VCE=5V)
2.高隔離電壓：5000V有效值
3.緊湊型雙列直插封裝
4.公認的UL認證，檔案編號E64380
Absolute Maximum Ratings PC817光耦絕對最大額定值：
| Parameter 參數 | Symbol符號 | Rating 數值 | Unit 單位 | |
| 輸入側 | Forward current 正向電流 | IF | 50 | mA |
| *1 Peak forward current 峰值正向電流 | IFM | 1 | A | |
| Reverse voltage 反向電壓 | VR | 6 | V | |
| Power dissipation 功耗 | P | 70 | mW | |
| 輸出側 | Collector-emitter voltage 集電極發射極電壓 | V CEO | 35 | V |
| Emitter-collector voltage 發射極集電極電壓 | V ECO | 6 | V | |
| Collector current 集電極電流 | IC | 50 | mA | |
| Collector power dissipation 集電極功耗 | PC | 150 | mW | |
| Total power dissipation 總功耗 | P tot | 200 | mW | |
| *2 Isolation voltage 隔離電壓 | V iso | 5 000 | Vrms | |
| Operating temperature 操作溫度 | T opr | -30 to + 100 | ℃ | |
| Storage temperature 存儲溫度 | T stg | -55 to + 125 | ℃ | |
| *3 Soldering temperature 焊接溫度 | T sol | 260 | ℃ | |
* 1.脈沖寬度<=100ms，占空比:0.001
* 2.40至60％相對濕度，交流1分鐘
* 3.10秒
Electro-optical Characteristics光電特性：
| Parameter 參數 | Symbol 符號 | Conditions 測試條件 | 數值 | |||||
最小 | 典型 | 最大 | 典型 | |||||
| 輸入側 | Forward voltage正向電壓 | V F | IF = 20mA | - | 1.2 | 1.4 | V | |
| Peak forward voltage正向峰值電壓 | V FM | IFM = 0.5A | - | - | 3.0 | V | ||
| Reverse current 反向電流 | IR | VR =4V | - | - | 10 | μA | ||
| Terminal capacitance 終端電容 | Ct | V = 0, f = 1kHz | - | 30 | 250 | pF | ||
| 輸出側 | Collector dark current 集電極暗電流 | ICEO | VCE = 20V | - | - | 10-7 | A | |
| Transfer charac-teristics 傳輸特點 | *4 Current transfer ratio 電流傳輸比 | CTR | IF = 5mA, V CE = 5V | 50 | - | 600 | % | |
| Collector-emitter saturation voltage 集電極發射極飽和電壓 | V CE(sat) | IF = 20mA, I C = 1mA | - | 0.1 | 0.2 | V | ||
| Isolation resistance 隔離電阻 | R ISO | DC500V, 40 to 60% RH | 5x1010 | 1011 | - | Ω | ||
| Floating capacitance 浮動電容 | Cf | V = 0, f = 1MHz | - | 0.6 | 1.0 | pF | ||
| Cut-off frequency截止頻率 | fc | VCE = 5V, I C = 2mA, R L = 100 W, -3dB | - | 80 | - | kHz | ||
| Response time 響應時間 | Rise time 上升時間 | tr | VCE = 2V, I C = 2mA, R L = 100 W | - | 4 | 18 | μs | |
| Fall time下降時間 | tf | - | 3 | 18 | μs | |||
* 4.分類表電流傳輸比如下所示
| Model No. 型號 | Rank mark 等級標志 | 電流傳輸比CTR ( % ) |
| PC817A | A | 80 to 160 |
| PC817B | B | 130 to 260 |
| PC817C | C | 200 to 400 |
| PC817D | D | 300 to 600 |
| PC8 * 7AB | A 或 B | 80 to 260 |
| PC8 * 7BC | B 或C | 130 to 400 |
| PC8 * 7CD | C 或 D | 200 to 600 |
| PC8 * 7AC | A, B 或 C | 80 to 400 |
| PC8 * 7BD | B, C 或 D | 130 to 600 |
| PC8 * 7AD | A, B, C 或 D | 80 to 600 |
| PC8 * 7 | A, B, C, D 或 無標記 | 50 to 600 |
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