PC817
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the PC817 does
The PC817 is a transistor photocoppler featuring a GaAs emitter and NPN transistor with a 2.54mm pin pitch. It operates on a single supply of 3 to 30 volts, delivering a minimum current conversion ratio of 100% at 5mA input and 5V output. The device handles 5,000Vrms insulation voltage and responds in approximately 6 microseconds. Engineers typically use the PC817 in switching power supplies, computers, and various household appliances like fans. It also serves measurement machines, duplicating equipment, and signal transforming systems across commercial and industrial applications.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| forward voltage | — | 1.2 V | 1.4 V | IF = 20mA; 光电特性(常温 = 25℃) Opto-electronic Characteristics | GK-Goodwork datasheet, p. 2 — 光电特性(常温=25℃) Opto-electronic Characteristics |
| operating temperature | -55 °C | — | 110 °C | 最大绝对额定值 (常温 = 25℃) Max Absolute rated Value (Normal Temperature = 25℃) | GK-Goodwork datasheet, p. 2 — 最大绝对额定值 (常温=25℃) Max Absolute rated Value (Normal Temperature=25℃) |
| power dissipation | — | — | 200 mW | 最大绝对额定值 (常温 = 25℃) Max Absolute rated Value (Normal Temperature = 25℃) | GK-Goodwork datasheet, p. 2 — 最大绝对额定值 (常温=25℃) Max Absolute rated Value (Normal Temperature=25℃) |
| forward current | — | 50 mA | — | GK-Goodwork datasheet, p. 2 — 最大绝对额定值 (常温=25℃) Max Absolute rated Value (Normal Temperature=25℃) | |
| isolation voltage | — | — | 5 kV | 最大绝对额定值 (常温 = 25℃) Max Absolute rated Value (Normal Temperature = 25℃) | GK-Goodwork datasheet, p. 2 — 最大绝对额定值 (常温=25℃) Max Absolute rated Value (Normal Temperature=25℃) |
| rise time | — | 6 µs | 18 µs | VCE = 2V, IC = 2mA; 光电特性(常温 = 25℃) Opto-electronic Characteristics | GK-Goodwork datasheet, p. 3 — 光电特性(常温=25℃) Opto-electronic Characteristics |
| fall time | — | 5 µs | 18 µs | RL = 100Ω; 光电特性(常温 = 25℃) Opto-electronic Characteristics | GK-Goodwork datasheet, p. 3 — 光电特性(常温=25℃) Opto-electronic Characteristics |
| dark current | — | 150 nA | — | VCE = 70V, IF = 0mA | GK-Goodwork datasheet, p. 2 — 光电特性(常温=25℃) Opto-electronic Characteristics |
| collector emitter voltage | — | — | 35 V | 最大绝对额定值 (常温 = 25℃) Max Absolute rated Value (Normal Temperature = 25℃) | GK-Goodwork datasheet, p. 2 — 最大绝对额定值 (常温=25℃) Max Absolute rated Value (Normal Temperature=25℃) |
| output count | — | 1 | — | GK-Goodwork datasheet, p. 1 | |
| channel count | — | 1 | — | GK-Goodwork datasheet, p. 1 |
Closest matches to PC817
Frequently asked questions
What is the channel count of the PC817?
The channel count is 1.
What is the collector-emitter voltage of the PC817 under maximum absolute rated values at normal temperature (25℃)?
The collector-emitter voltage is 35 V.
What is the dark current of the PC817 when VCE = 70V and IF = 0mA?
The dark current is 150 nA.
What is the fall time of the PC817 when RL = 100Ω at 25℃?
The fall time is 5 µs.
What is the maximum forward current for the PC817?
The maximum forward current is 50 mA.
What is the forward voltage of the PC817 at IF = 20mA under Opto-electronic Characteristics (常温 = 25℃)?
The forward voltage is 1.2 V.
What is the isolation voltage of the PC817 under the condition of 最大絶対额定値 (常温 = 25℃) Max Absolute rated Value (Normal Temperature = 25℃)?
The isolation voltage is 5 kV.
What is the operating temperature for the PC817 under the condition of maximum absolute rated value (normal temperature = 25℃)?
The operating temperature is 110 °C.
What is the output count of the PC817?
The output count is 1.
What is the maximum power dissipation of the PC817 at a normal temperature of 25℃?
The power dissipation is 200 mW.
What is the rise time of the PC817 under the condition VCE = 2V, IC = 2mA at 25°C?
The rise time is 6 µs.