4N25X, 4N26X, 4N27X, 4N28X
4N25, 4N26, 4N27, 4N28
OPTICALLY COUPLED
ISOLATOR
PHOTOTRANSISTOR OUTPUT
APPROVALS
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UL recognised, File No. E91231
'X' SPECIFICATION APPROVALS
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VDE 0884 in 3 available lead form : -
- STD
- G form
-
SMD approved to CECC 00802
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Certified to EN60950 by the following
Test Bodies :-
Nemko - Certificate No. P01102464
Fimko - Certificate No. FI18166
Semko - Reference No. 0202037/01-22
Demko - Certificate No. 311158-01
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BSI approved - Cetificate No. 8001
DESCRIPTION
The 4N25, 4N26, 4N27, 4N28 series of optically
coupled isolators consist of infrared light
emitting diode and NPN silicon photo transistor
in a standard 6 pin dual in line plastic package.
FEATURES
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Options :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
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High Isolation Voltage (5.3kV
RMS
,7.5kV
PK
)
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All electrical parameters 100% tested
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Custom electrical selections available
APPLICATIONS
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DC motor controllers
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Industrial systems controllers
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Measuring instruments
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Signal transmission between systems of
different potentials and impedances
OPTION SM
SURFACE MOUNT
OPTION G
2.54
7.0
6.0
1.2
7.62
6.62
Dimensions in mm
1
2
3
6
5
4
7.62
4.0
3.0
0.5
13°
Max
0.26
3.0
0.5
3.35
ABSOLUTE MAXIMUM RATINGS
(25°C unless otherwise specified)
Storage Temperature
-55°C to + 150°C
Operating Temperature
-55°C to + 100°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current
Reverse Voltage
Power Dissipation
OUTPUT TRANSISTOR
Collector-emitter Voltage BV
CEO
Collector-base Voltage BV
CBO
Emitter-collector Voltage BV
ECO
Power Dissipation
POWER DISSIPATION
30V
70V
6V
160mW
60mA
6V
105mW
7.62
0.6
0.1
10.46
9.86
1.25
0.75
0.26
10.16
Total Power Dissipation
200mW
(derate linearly 2.67mW/°C above 25°C)
ISOCOM COMPONENTS LTD
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, TS25 1YD England Tel: (01429)863609
Fax : (01429) 863581 e-mail sales@isocom.co.uk
http://www.isocom.com
5/2/03
ISOCOM INC
1024 S. Greenville Ave, Suite 240,
Allen, TX 75002 USA
Tel: (214) 495-0755 Fax: (214) 495-0901
e-mail info@isocom.com
http://www.isocom.com
DB91028m-AAS/A4
ELECTRICAL CHARACTERISTICS ( T
A
= 25°C Unless otherwise noted )
PARAMETER
Input
Forward Voltage (V
F
)
Reverse Current (I
R
)
Output
Collector-emitter Breakdown (BV
CEO
)
( Note 2 )
Collector-base Breakdown (BV
CBO
)
Emitter-collector Breakdown (BV
ECO
)
Collector-emitter Dark Current (I
CEO
)
Collector-base Dark Current (I
CBO
)
Current Transfer Ratio (CTR)
4N25, 4N26
4N27, 4N28
Collector-emitter Saturation VoltageV
CE(SAT)
Input to Output Isolation Voltage V
ISO
Input-output Isolation Resistance R
ISO
Turn-on Time
Turn-off Time
Output Rise Time
Output Fall Time
ton
toff
tr
tf
30
70
6
50
20
MIN TYP MAX UNITS
1.2
1.5
10
V
µ
A
TEST CONDITION
I
F
= 10mA
V
R
= 6V
I
C
= 1mA
I
C
= 100
µ
A
I
E
= 100
µ
A
V
CE
= 10V
V
CE
= 10V
10mA I
F
, 10V V
CE
10mA I
F
, 10V V
CE
50mA I
F
, 2mA I
C
See note 1
See note 1
V
IO
= 500V (note 1)
V
CC
= 10V ,
I
F
= 10mA, R
L
= 100
Ω
( FIG 1)
V
V
V
nA
nA
Coupled
20
10
0.5
5300
7500
5x10
10
4
3
2
2
%
%
V
V
RMS
V
PK
Ω
µ
s
µ
s
µ
s
µ
s
Note 1
Note 2
Measured with input leads shorted together and output leads shorted together.
Special Selections are available on request. Please consult the factory.
V
CC
Input
R
L
= 100Ω
Output
Output
10%
t
r
t
f
t
on
t
off
10%
90%
90%
FIG 1
5/2/03
DB91028m-AAS/A4
Collector Power Dissipation vs. Ambient Temperature
200
Collector power dissipation P
C
(mW)
Relative current transfer ratio
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
-30
0
25
50
75
100
125
1
Relative Current Transfer Ratio
vs. Forward Current
150
100
50
V
CE
= 0.5V
T
A
= 25°C
2
5
10
20
50
0
Ambient temperature T
A
( °C )
Forward Current vs. Ambient Temperature
80
70
Relative current transfer ratio
Forward current I
F
(mA)
60
50
40
30
20
10
-30
0
25
50
75
100
125
Forward current I
F
(mA)
Relative Current Transfer Ratio
vs. Forward Current
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1
2
5
10
20
50
V
CE
= 10V
T
A
= 25°C
Ambient temperature T
A
( °C )
Relative Current Transfer Ratio
vs. Ambient Temperature
1.5
Forward current I
F
(mA)
Collector-emitter Saturation
Voltage vs. Ambient Temperature
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
-30
0
25
50
75
100
Ambient temperature T
A
( °C )
DB91028m-AAS/A4
Collector-emitter saturation voltage V
CE(SAT)
(V)
Relative current transfer ratio
I
F
= 10mA
V
CE
= 10V
I
F
= 50mA
I
C
= 2mA
1.0
0.5
0
-30
0
25
50
75
100
Ambient temperature T
A
( °C )
5/2/03
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