FOD2743BSDV Phototransistor Optocouplers by ON Semiconductor

8-PIN DIP Error Amplifier Optocoupler

Status: Active
Series: FOD2743B
RoHS: Compliant
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The FOD2743 Optically Isolated Amplifier consists of the popular KA431 percision programmable shunt reference and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. It comes in 3 grades of reference voltage tolerance = 2%, 1% and 0.5%.The Current Transfer Ratio, (CTR) ranges from 50% to 100%. It also has an outstanding temperature coefficient of 50 ppm/°C. It is primarily intended for use as the error amplifier/reference voltage/optocoupler function in isolated ac to dc power supplies and dc/dc converters.When using the FOD2743, power supply designers can reduce the component count and save space in tightly packaged designs. The tight tolerance eliminates the need for adjustments in many applications. The device comes in an 8-pin dip white package.

Where to Buy

Prices starting from US$0.67

Distributor Stock
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Farnell
from US$0.67
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Newark Electronics
from US$0.78
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Future Electronics
from US$0.78
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Avnet America
from US$0.75
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Features

Optocoupler, precision reference and error amplifier in single package
2.5V reference
CTR 50% to 100% at 1mA
5,000V RMS isolation
UL approval E90700, Vol. 2; CSA approval 1296837; VDE approval pending; BSI approval pending
Low temperature coefficient 50 ppm/°C max
FOD2743A: tolerance 0.5%; FOD2743B: tolerance 1%; FOD2743C: tolerance 2%
Applications
AC-DC Merchant Power Supply
Industrial Motor
End Products
Consumer Appliances

Specifications

Description FOD2743B
Compliance Pb-free
VREF Tolerance (%) 1
VREF (Min) (V) 2.47
VREF (Typ) (V) 2.495
VREF (Max) (V) 2.52
CTR (Min) (%) 50
CTR (Max) (%) 100
CTR tested @ IF (mA) 1
VCE (sat) (Max) (V) 0.4
BVCEO (Min) (V) 70
VISO (Min) (V) 5000
TOPR (Min) (°C) -25
TOPR (Max) (°C) 85
Package Type PDIP-8 GW

Alternative Descriptions

Npn-Output Dc-Input Optocoupler,1-Channel,5Kv Isolation,so Rohs Compliant: Yes |Onsemi FOD2743BSDV | Newark Electronics
DIP-8 Surface Mount 1 Channel 70 V 5000 Vrms Optically Isolated Error Amplifier | Future Electronics
Optocoupler DC-IN 1-CH Transistor DC-OUT 8-Pin PDIP SMD Black Bulk | Avnet America
OPTOCOUPLER, DIP-8, ERROR AMP, SMD | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a FOD2743BSDV?

Additional datasheets, footprints and schematics for FOD2743BSDV are listed on our Part Details page. You can also find images and similar parts to FOD2743BSDV on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for FOD2743BSDV on our Product Comparison page. Access via the 'View Pricing & Stock' button to view FOD2743BSDV price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does FOD2743BSDV fall under?

The FOD2743BSDV is listed under Interfaces > Phototransistor Optocouplers > Isolated Error Amplifier Optocouplers.

Can I view similar or alternative parts?

You can view similar parts to FOD2743BSDV when available in the Isolated Error Amplifier Optocouplers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the FOD2743BSDV you can contact the distributor directly for product support, shipping queries etc.

Is the FOD2743BSDV RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for FOD2743BSDV have stock available?

Authorised distributors including Newark Electronics, Future Electronics, Avnet America, Farnell and Avnet Silica have stock available or on a lead time for FOD2743BSDV.

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