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3N261

Description
transistor output optocouplers isolator
Categorysemiconductor    Other integrated circuit (IC)   
File Size216KB,5 Pages
ManufacturerOPTEK(TT Electronics)
Websitehttp://www.ttelectronics.com/optek-technology
Environmental Compliance
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3N261 Overview

transistor output optocouplers isolator

Hi-Reliability Optically Coupled Isolator
3C91C, 3C92C, 3N243, 3N244, 3N245, 3N261, 3N262, 3N263
(TX, TXV)
Features:

TO-72 hermetically sealed package

1 kVDC electrical isolation

High current transfer ratio

TX and TXV devices processed to MIL-PRF-19500
Description:
Each device is a high reliability optically coupled isolator that consists of an infrared emitting diode and a NPN
silicon phototransistor which are mounted in a hermetically sealed TO-72 package. The
3C91C
and
3C92C
have
a 935 nm wavelength, whereas the
3N243, 3N244, 3N245, 3N261, 3N262
and
3N263
have an 880 nm
wavelength. All devices have 0.50” (12.70 mm) leads. Electrical characteristics vary. The
3N261TX, 3N262TX
and
3N263TX
devices are similar to JEDEC registered optically coupled isolators.
TX and TXV devices are processed to OPTEK’s military screening program patterned after MIL-PRF-19500.
Please refer to Application Bulletins 208 and 210 for additional design information and reliability (degradation) data.
Contact your local representative or OPTEK for more information.
Applications:

High-voltage isolation
between input and output

Electrical isolation in dirty
environments

Industrial equipment
Part
Number
3C91C (TX, TXV)
3C92C (TX, TXV)
3N243 (TX, TXV)
3N244 (TX, TXV)
3N245 (TX, TXV)
3N261 (TX, TXV)
3N262 (TX, TXV)
3N263 (TX, TXV)
LED
Peak
Wavelength
935 nm
Sensor
Isolation
V
CE
(V)
Voltage
CTR
I
F
(mA)
Typ /
Lead
(,000)
Min / Max Typ / Max Max Length
0.3 / 2.0
0.15 / NA
0.3 / NA
0.6 / NA
.05 / NA
1.0 / 5.0
2.0 / 10.0
1 / 40
5 / 30
10 / 50
10 / 50

Medical equipment

Office equipment
3C91
1
2
Transistor
880 nm
1
3 / 40
10 / 30
0.50"
3C92
1
3
Phototransistor Collector is connected to the Header-Base-Case for ALL versions
3N2XX
2
3
4
3
Bottom
View
4
2
4
1
Pin #
1
2
3
4
3C91
Cathode
Collector
Emitter
Anode
3C92
Cathode
Emitter
Collector
Anode
3N2XX
Emitter
Cathode
Collector
Anode
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. —
1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.3
11/09
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