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QT851

QT851

QT851

QT Brightek (QTB)

4 PIN HIGH POWER PHOTOTRANSISTOR

QT851 Datasheet

compliant

4-DIP (0.300", 7.62mm)

HongKong/Shenzhen Warehouse

DHL/Fedex/UPS/TNT/SF/EMS

QT851 Pricing & Ordering

Quantity Unit Price Ext. Price
1 $1.20000 $1.2
10 $0.97500 $9.75
25 $0.75000 $18.75
100 $0.67500 $67.5
300 $0.60000 $180
500 $0.51000 $255
1,000 $0.42000 -
2,500 $0.39900 -
5,000 $0.39000 -
682 items

QT851 Purchase Assurance: Buy Confidently, Use Securely

Transparent & Traceable Sources

We source exclusively from verified channels to ensure authenticity:

  • Direct from manufacturer and OEMs
  • Authorized distributors
  • Market-vetted traders (3+ years stable supply)

Every batch is traceable with documented proof of origin.

Quality Inspection Process

We enforce strict checks to ensure components meet standards:

  • Visual: Appearance, markings, packaging, batch codes
  • X-ray: Pad consistency (on request)
  • Function test: Sample checks for specific models (upon request)
  • Reports: Available upon request
Flexible Payments & Terms

We adapt to your project needs:

  • T/T, PayPal, Credit Card
  • Credit terms for long-term partners (e.g., monthly, Net 15/30)
Reliable After-Sales Support

365 Days warranty with streamlined solutions:

  • Defective? Free returns/replacements
  • Fast reshipment or refund
  • Full-service sourcing: Procurement & payment support
Bom Cost Down
Bom Cost Down
Wholesale Prices for Every Order, Big or Small
Wholesale Prices for Every Order, Big or Small

QT851 QT Brightek (QTB)

Name Value
Product 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
Q1: What is the purchase guide for QT851?
QT851 of QT Brightek (QTB) is a 4 PIN HIGH POWER PHOTOTRANSISTOR. ICHOME is a long-term spot supplier of QT851, supporting sample purchase and bulk order.
Q2: How to find the detailed information of QT851?
Download QT851 Datasheet
Q3: What payment can support in ICHOME?
PayPal, Payoneer, Visa, Bank Transfer, AliExpress.
Q4: Where do you sourcingQT851 from?
After 21 years of long-term and stable development, ICHOME have accumulated leading supply chain partner.
Q5: Can you provide QT851 alternative/replacement suggestions?
Through different levels of industry applications, ICHOME engineers will analyze component risks (discontinued, single source, etc.) and give you QT851 replacement suggestions, and then provide you with alternative products, supporting free sample delivery.
Q6: Why choose ICHOME?
Compared with ordinary agents, ICHOME provides full BOM matching, EOL judgment, alternative model suggestions, large stock + flexible procurement, test reports, return service
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