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
Page 1 of 5
Hi-Reliability Optically Coupled Isolator
3C91C, 3C92C, 3N243, 3N244, 3N245, 3N261, 3N262, 3N263
(TX, TXV)
Absolute Maximum Ratings
(T
A
= 25° C unless otherwise noted)
Operating Temperature Range
Storage Temperature Range
Input to Output Isolation Voltage
Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 seconds with soldering iron]
Input Diode
Forward DC Current
Reverse Voltage
Power Dissipation
Output Phototransistor
Continuous Collector Current
Collector-Emitter Voltage
Emitter-Collector Voltage
30 mA
30 V
5.0 V
40 mA
2.0 V
60 mW
(3)
-55
o
C to +125
o
C
-65
o
C to +150
o
C
± 1 kVDC
(1)
260° C
(2)
Notes:
1. Measured with input leads shorted together and output leads shorted together.
2. RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
3. Derate linearly 2.0 mW/° C above 25° C.
Power Dissipation
4. Derate linearly 0.60 mW/° C above 65° C.
200 mW
(4)
I
C(ON)
vs T
A
2.5
Normalized @ 20 mA and 25° C
2.0
I
F
= 50mA
I
C(ON)
(mA)
1.5
1.0
I
F
= 20mA
0.5
0.0
-55
-35
-15
+5
+25
+45
T
A
(°C)
+65
+85
+105
+125
+135
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.3
11/09
Page 2 of 5
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
Hi-Reliability Optically Coupled Isolator
3C91C, 3C92C, 3N243, 3N244, 3N245, 3N261, 3N262, 3N263
(TX, TXV)
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
Input Diode
Forward Voltage
3C91C, 3C92C (TX, TXV)
3C91C, 3C92C (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
Reverse Voltage
3C91C, 3C92C (TX, TXV)
Reverse Current
3C91C, 3C92C (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
Diode Capacitance
3C91C, 3C92C (TX, TXV)
-
-
0.8
1.0
0.7
0.8
1.0
0.7
7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
25
1.2
1.5
1.3
1.5
1.2
1.5
1.7
1.3
-
1
100
100
-
I
F
= 2 mA
I
F
= 50 mA
I
F
= 10 mA
I
F
= 10 mA, T
A
= -55° C
I
F
= 10 mA, T
A
= -100° C
I
F
= 10 mA
I
F
= 10 mA, T
A
= -55° C
I
F
= 10 mA, T
A
= -100° C
PARAMETER
MIN
TYP
MAX UNITS
TEST CONDITIONS
V
F
V
V
R
V
I
R
= 0.1 mA
V
R
= 3.0 V
V
R
= 2.0 V
V
R
= 2.0 V
V = 0, f = 1 MHz
I
R
µA
C
IN
pF
Output Phototransistor
Collector-Emitter Breakdown Voltage
3C91C, 3C92C (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
Emitter-Collector Breakdown Voltage
3C91C, 3C92C (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
Collector Dark Current
3C91C, 3C92C (TX, TXV)
3C91C, 3C92C (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
50
30
40
7
5
7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10
50
100
100
100
100
I
C
= 10.0 mA
I
C
= 1.0 mA
I
C
= 1.0 mA
I
C
= 10 µA
I
E
= 100 µA
I
E
= 100 µA
V
CE
= 5 V
V
CE
= 50 V
V
CE
= 10.0 V
V
CE
= 10.0 V, T
A
= 100° C
V
CE
= 10.0 V
V
CE
= 10.0 V, T
A
= 100° C
V
(BR)CEO
V
V
(BR)ECO
V
I
CEO
nA
nA
nA
µA
µA
µA
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
Page 3 of 5
Hi-Reliability Optically Coupled Isolator
3C91C, 3C92C, 3N243, 3N244, 3N245, 3N261, 3N262, 3N263
(TX, TXV)
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
Coupled
On-State Collector Current
3C91C, 3C92C (TX, TXV)
3C91C, 3C92C (TX, TXV)
3N243 (TX, TXV)
3N243 (TX, TXV)
3N243 (TX, TXV)
3N243 (TX, TXV)
3N244 (TX, TXV)
3N244 (TX, TXV)
3N244 (TX, TXV)
3N244(TX, TXV)
3N245 (TX, TXV)
3N245 (TX, TXV)
3N245(TX, TXV)
3N245(TX, TXV)
3N261(TX, TXV)
3N261 (TX, TXV)
3N261 (TX, TXV)
3N262 (TX, TXV)
3N262(TX, TXV)
3N262 (TX, TXV)
3N263 (TX, TXV)
3N263(TX, TXV)
3N263(TX, TXV)
Collector-Emitter Saturation Voltage
3C91C, 3C92C (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
Turn-on Time
3C91C, 3C92C (TX, TXV)
Turn-off Time
3C91C, 3C92C (TX, TXV))
4.0
3.0
1.5
0.3
0.5
0.5
3.0
0.8
1.0
1.0
6.0
1.5
1.5
1.5
0.5
0.7
0.5
1.0
1.4
1.0
2.0
2.8
2.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
5
-
-
10
-
-
0.4
0.3
0.3
0.3
0.3
0.3
0.3
9
6
I
F
= 10 mA , V
CE
= 5 V
I
F
= 10 mA , V
CE
= 0.4 V
I
F
= 10 mA , V
CE
= 10.0 V
I
F
= 3 mA , V
CE
= 10.0 V
I
F
= 10 mA , V
CE
= 10.0 V, T
A
= 55° C
I
F
= 10 mA , V
CE
= 10.0 V, T
A
= 100° C
I
F
= 10 mA , V
CE
= 10.0 V
I
F
= 3 mA , V
CE
= 10.0 V
I
F
= 10 mA , V
CE
= 10.0 V, T
A
= 55° C
I
F
= 10 mA , V
CE
= 10.0 V, T
A
= 100° C
I
F
= 10 mA , V
CE
= 10.0 V
I
F
= 3 mA , V
CE
= 10.0 V
I
F
= 10 mA , V
CE
= 10.0 V, T
A
= 55° C
I
F
= 10 mA , V
CE
= 10.0 V, T
A
= 100°
I
F
= 1 mA , V
CE
= 5.0 V
I
F
= 2.0 mA , V
CE
= 5.0 V, T
A
= 55° C
I
F
= 2.0 mA , V
CE
= 5.0 V, T
A
= 100° C
I
F
= 1 mA , V
CE
= 5.0 V
I
F
= 2.0 mA , V
CE
= 5.0 V, T
A
= 55° C
I
F
= 2.0 mA , V
CE
= 5.0 V, T
A
= 100° C
I
F
= 1 mA , V
CE
= 5.0 V
I
F
= 2.0 mA , V
CE
= 5.0 V, T
A
= 55° C
I
F
= 2.0 mA , V
CE
= 5.0 V, T
A
= 100° C
I
F
= 50 mA , I
C
= 10 mA
I
F
= 20 mA , I
C
= 1.50 mA
I
F
= 20 mA , I
C
= 3.0 mA
I
F
= 20 mA , I
C
= 6.0 mA
I
F
= 2.0 mA , I
C
= 0.50 mA
I
F
= 2.0 mA , I
C
= 1.0 mA
I
F
= 2.0 mA , I
C
= 2.0 mA
V
CC
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
V
CC
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
PARAMETER
MIN
TYP
MAX UNITS
TEST CONDITIONS
I
C(ON)
mA
V
CE(SAT)
V
t
ON
t
IOFF
µs
µs
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.3
11/09
Page 4 of 5
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
Hi-Reliability Optically Coupled Isolator
3C91C, 3C92C, 3N243, 3N244, 3N245, 3N261, 3N262, 3N263
(TX, TXV)
Electrical Characteristics
(T
A
= 25°C unless otherwise noted)
SYMBOL
Coupled
Input-to-Output Capacitance
3C91C, 3C92C (TX, TXV)
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
Leakage Input -to-Output
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262, 3N263 (TX, TXV)
Isolation Resistance
3C91C, 3C92C (TX, TXV)
Output Rise Time
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262 (TX, TXV)
3N263 (TX, TXV)
Output Fall Time
3N243, 3N244, 3N245 (TX, TXV)
3N261, 3N262 (TX, TXV)
3N263 (TX, TXV)
-
-
-
-
-
10
9
-
-
-
-
-
-
2
-
-
-
-
-
-
-
-
-
-
-
2.5
5.0
5.0
100
10
-
10
20
25
10
10
25
f = 1 MHz
V
IO
= 0 V, f = 1.00 MHz
(1)
V
IO
= 0 V, f = 1.00 MHz
(1)
V
IO
= ± 1.00 kVDC
(1)
V
IO
= ± 1.00 kVDC
(1)
V
IO
= +1 kV
V
CC
= 10.0 V, I
F
= 10.0 mA, R
L
= 100
Ω
(2)
V
CC
= 10.0 V, I
F
= 5.0 mA, R
L
= 100
Ω
(2)
V
CC
= 10.0 V, I
F
= 5.0 mA, R
L
= 100
Ω
(2)
V
CC
= 10.0 V, I
F
= 10.0 mA, R
L
= 100
Ω
(2)
V
CC
= 10.0 V, I
F
= 5.0 mA, R
L
= 100
Ω
(2)
V
CC
= 10.0 V, I
F
= 5.0 mA, R
L
= 100
Ω
(2)
PARAMETER
MIN
TYP
MAX UNITS
TEST CONDITIONS
C
IO
pF
I
IO
R
IO
nA
Ω
t
r
µs
t
f
µs
Notes:
1. Measured with input leads shorted together and output leads shorted together.
2. The input waveform is supplied by a generator with the following characteristics:
Z
OUT
= 50
Ω,
t
r
≤
15 ns, duty cycle ~ 1%, pulse width ~ 100 ms
V
F
vs I
F
vs T
A
1.50
1.40
1.30
1.20
1.10
V
F
(V)
1.00
-55
I
C(ON)
vs I
F
vs T
A
2.5
Normalized @ 20 mA and 25° C
2.0
I
C(ON)
(mA)
1.5
0.90
0.80
0.70
0.60
0.50
0
10
20
I
F
(mA)
30
40
-35
-15
+5
+25
+45
+65
+85
+105
+125
+135
1.0
-55
-35
-15
+5
+25
+45
+65
+85
+105
+125
+135
0.5
0.0
0
10
20
I
F
(mA)
30
40
50
50
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
Page 5 of 5
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