© 2013 Solid State Optronics • San José, CA

SDT400-R/H/S/TR

Rev 2.01 (07/29/2013)

001612

Page 1 of 10

SDT400-R

DC Input

80V

Photo-Transistor Optocoupler

Description

The SDT400-R consists of a phototransistor optically

coupled to a light emitting diode. Optical coupling between

the input IR LED and output phototransistor allows for high

isolation levels while maintaining low-level DC signal

control capability.

The SDT400-R provides an optically

isolated method of controlling many interface applications

such as telecommunications, industrial control and

instrumentation circuitry.

The SDT400-R comes standard in a miniature 4 pin DIP

package.

Schematic Diagram

Agency Approvals

UL/C-UL:

File # E201932

VDE:

File # 40035191 (EN 60747-5-2)

Applications



Registers, Copiers, Automatic Vending Machines



System Appliances, Measuring Instruments



Computer Terminals, PLCs



Telecommunication Equipment, Telephones



Home Appliances



Digital Logic Inputs



Microprocessor Inputs



Switching Power Supplies

Absolute Maximum Ratings

The values indicated are absolute stress ratings. Functional

operation of the device is not implied at these or any

conditions in excess of those defined in electrical

characteristics section of this document. Exposure to

absolute Maximum Ratings may cause permanent damage

to the device and may adversely affect reliability.

Storage Temperature …………………………..-55 to +125°C

Operating Temperature

………………………-40 to +85°C

Continuous Input Current………………………………..50mA

Transient Input Current ………………….……………..500mA

Reverse Input Control Voltage …………..…………………6V

Input Power Dissipation…………………………………70mW

Total Power Dissipation ……………………………..200mW

Solder Temperature – Wave (10sec)……………….….260°C

Solder Temperature – IR Reflow (10sec)….…………..260°C

Ordering Information / Lead Form / Packaging

Part Number

Description

SDT400-R

4 pin DIP, (100/Tube)

SDT400-RH

SDT400-RS

4 pin SMD, (100/Tube)

SDT400-RSTR

4 pin SMD, Tape and Reel (2000/Reel)

Features





Reversed Output (Emitter-Pin4, Collector-Pin3)



Low input power consumption



CTR Range 50 – 600% (Binning Available)





Long Life / High Reliability



RoHS / Pb-Free / REACH Compliant

NOTE: For complete product ordering / naming conventions,

reference page 10. Suffixes listed above are not included in

marking on device for part number identification