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SDT400 Datasheet, PDF (1/6 Pages) Solid State Optronic – DC Input Optocoupler
SDT400
DC Input
Optocoupler
DESCRIPTION
The SDT400 consists of a phototransistor optically coupled to a light emitting diode. Optical coupling between the input LED and output
phototransistor allows for high isolation levels while maintaining low-level DC signal control capability. The SDT400 provides an optically
isolated method of controlling many interface applications such as telecommunications, industrial control and instrumentation circuitry.
FEATURES
• High input-to-output isolation package (5000 Vrms)
• Low input power consumption
• High stability
• Miniature 4 pin DIP package
• CTR Range 50-600%
OPTIONS/SUFFIXES*
• -H .04" (10.16mm) lead spacing (VDE0884)
• -S Surface Mount Option
• -TR Tape and Reel Option
NOTE: Suffixes listed above are not included in marking on
device for part number identification.
SCHEMATIC DIAGRAM
1
+ Input
2
- Input
4
Collector
3
Emitter
APPLICATIONS
• Registers, copiers, Automatic Vending Machines
• System appliances, measuring instruments
• Computer terminals, PLCs
• Telecommunications, telephones
• Home Appliances
• Digital logic inputs
• Microprocessor inputs
• Switching power supply
ABSOLUTE MAXIMUM RATINGS*
PARAMETER
UNIT MIN TYP MAX
Storage Temperature
ºC -55
125
Operating Temperature
ºC -40
100
Input Forward Current
mA
50
Input Peak Forward
A
1
Current
Reverse Input Control
V
6
Voltage
Total Power Dissipation
mW
200
*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
Ratings may cause permanent damage to the device and may adversely
affect reliability.
APPROVALS
• UL and C-UL Approved, File #E201932
• VDE Approved, Lic # 40011227
© 2004 Solid State Optronics • San José, CA
www.ssousa.com • +1.408.293.4600
Page 1 of 6
SDT400
rev 1.40 (10/25/2004)