how many volts does the led part of it take? and what resistors to use from a 3.3v source to make it work at max?

The spec. sheet says 20ma at 1.2 volts typically. I used it with a Arduino off a standard GPIO and used a 2.2Kohm resistor. That should work in most situations. Obviously it you don't get conduction on the other side you might lower that resistance but not to exceed 20ma.

Will this drive a 12 vdc coil on a relay that draws 150mA? What's themax current it will drive?

No. The max collector current is only 50mA.

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BOJACK PC817 OPTOCOUPLER DIP Installation PC817C 2.54 mm Pitch 4-pin DIP-4 (Pack of 50 pcs)

BOJACK PC817 OPTOCOUPLER DIP Installation PC817C 2.54 mm Pitch 4-pin DIP-4 (Pack of 50 pcs)

Product ID: 241012665

Details

Brand
BOJACK
Color
Black
Contact Type
Spst
Current Rating
50 Milliamps
Voltage
5 Volts

⚡5000V isolation voltage

📦Pack of 50 in resealable box

🔌50mA max collector current

₩23952

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Description

⚡ Elevate your electronics with BOJACK PC817 – where precision meets power!

COMPACT CONVENIENT - 50 pcs packed in a durable resealable box for easy storage and access 📦
HIGH VOLTAGE ISOLATION - Protect your circuits with a robust 5000V isolation barrier ⚡
ENERGY EFFICIENT DESIGN - Low power consumption at just 200mW keeps your projects running cool and efficient
VERSATILE COMPATIBILITY - Perfect for computer terminals, SCR systems, measuring instruments, and more
RELIABLE CURRENT HANDLING - Supports up to 50mA collector current for stable performance 🔌

The BOJACK PC817 is a high-performance 4-pin DIP phototransistor optocoupler offering 5000V isolation voltage and 50mA collector current. Ideal for a wide range of applications including computer terminals and SCR systems, it comes in a convenient pack of 50 units housed in a resealable box, ensuring both reliability and ease of use for professional-grade electronic projects.

Specifications

ASIN	B08CXRHDHP
Best Sellers Rank	#38,457 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Optocouplers
Brand Name	BOJACK
Circuit Type	4-Way
Color	Black
Compatible Devices	Computer terminals, SCR system equipment, measuring instruments, photocopiers, automatic ticketing, household appliances
Connector Type Used on Cable	Pin
Contact Type	Spst
Control Method	App
Control Type	Automatic
Current Rating	50 Milliamps
Customer Reviews	4.7 4.7 out of 5 stars (144)
Manufacturer	BOJACK
Material Type	Plastic
Number of Positions	4
Operating Voltage	5 Volts (DC)
Operation Mode	Automatic
Part Number	BJ-PC-817
Switch Type	Dip
Terminal	Physical
UPC	759838089656
Unit Count	50.0 Count
Voltage	5 Volts
Wattage	200 Milliwatts

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₩23952

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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