QT851

Part No :: QT851

Manufacturer: QT Brightek

VIGOR # :: 4085485

Description: 4 PIN HIGH POWER PHOTOTRANSISTOR

Catalog: Optoisolators - Transistor, Photovoltaic Output

DataSheet: QT851 PDF

Country of origin: -

Date code: -

QT851 Specifications

Type	Description
Series:	-
Package:	Tube
Part Status:	Active
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Current Transfer Ratio (Min):	50% @ 5mA
Current Transfer Ratio (Max):	600% @ 5mA
Turn On / Turn Off Time (Typ):	-
Rise / Fall Time (Typ):	6µs, 8µs
Input Type:	DC
Output Type:	Transistor
Voltage - Output (Max):	350V
Current - Output / Channel:	100mA
Voltage - Forward (Vf) (Typ):	1.2V
Current - DC Forward (If) (Max):	80 mA
Vce Saturation (Max):	400mV
Operating Temperature:	-55°C ~ 100°C
Mounting Type:	Through Hole
Package / Case:	4-DIP (0.300", 7.62mm)
Supplier Device Package:	4-DIP

Please confirm the specifications of the products when ordering.
MOQ means the minimum order quantity required to purchase each parts.
If you have special order instructions,please note it on the ordering pages.
The Pre-Shipment Inspection (PSI) will be applied.
You can email us to change the order details before shipment.
Orders cannot be canceled after shipping the packages.

TT in advance (bank transfer), Credit Card, PayPal can be chosen.
Cash transfer only. (Transfer with checks and bills are not accepted.)
Customer is responsible for paying all possible charges,including sales tax, VAT and customs charges,etc.
If you need the detailed invoice or tax ID,please email us.

FedEx, DHL, and UPS can be selected.
You can select whether to charge shipping fee by your shipping account or to charge by our side.
Please confirm with the logistics company in advance if you are in a remote area. (It may cost extra fees (35-50 USD) for delivery at those areas.)
The shopping cart will automatically calculate the shipping cost.
Delivery time: At the same day (Order deadline is 2pm, HK Time).
Delivery date: usually 2 to 7 working days.
It is unable to appoint a date of delivery.
Tracking number will be sent once your order has been shipped. (It may take up to 24 hours before carriers display the info.)

In Stock: 2254

Shipped from

HK warehouse

Expected Shipping Date

Jan 22 - Jan 26 2026

Pricing(USD)

Quantity	Unit Price	Ext. Price
1	~~$1.26~~	~~$1.26~~
10	~~$1.02~~	~~$10.24~~
25	~~$0.79~~	~~$19.69~~
100	~~$0.71~~	~~$70.88~~
300	~~$0.63~~	~~$189.00~~
500	~~$0.54~~	~~$267.75~~
1000	~~$0.44~~	~~$441.00~~
2500	~~$0.42~~	~~$1 047.38~~
5000	~~$0.41~~	~~$2 047.50~~

Current price of QT851 is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@Vigorcomp.com

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QT851

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Pricing(USD)