5/7/03
WHITE PACKAGE (-M SUFFIX)
Page 1 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
BLACK PACKAGE (NO -M SUFFIX)
6
1
6
1
6
1
6
1
6
6
1
1
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
DESCRIPTION
The general purpose optocouplers consist of a gallium arsenide infrared emitting diode driving a silicon phototransistor in a 6-pin
dual in-line package.
FEATURES
• Also available in white package by specifying -M suffix, eg. 4N25-M
• UL recognized (File # E90700)
• VDE recognized (File # 94766)
- Add option V for white package (e.g., 4N25V-M)
- Add option 300 for black package (e.g., 4N25.300)
APPLICATIONS
• Power supply regulators
• Digital logic inputs
• Microprocessor inputs
SCHEMATIC
PIN 1. ANODE
2. CATHODE
3. NO CONNECTION
4. EMITTER
5. COLLECTOR
6. BASE
2
1
3NC
5
6
4
5/7/03
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
Page 2 of 15
© 2003 Fairchild Semiconductor Corporation
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25°C unless otherwise specified)
Parameter Symbol Value Units
TOTAL DEVICE
Storage Temperature T
STG
-55 to +150 °C
Operating Temperature T
OPR
-55 to +100 °C
Wave solder temperature (see page 14 for reflow solder profiles) T
SOL
260 for 10 sec °C
Total Device Power Dissipation @ T
A
= 25°C
Derate above 25°CP
D
250 mW
3.3 (non-M), 2.94 (-M)
EMITTER
DC/Average Forward Input Current I
F
100 (non-M), 60 (-M) mA
Reverse Input Voltage V
R
6V
Forward Current - Peak (300µs, 2% Duty Cycle) I
F
(pk) 3A
LED Power Dissipation @ T
A
= 25°C
Derate above 25°CP
D
150 (non-M), 120 (-M) mW
2.0 (non-M), 1.41 (-M) mW/°C
DETECTOR
Collector-Emitter Voltage V
CEO
30 V
Collector-Base Voltage V
CBO
70 V
Emitter-Collector Voltage V
ECO
7V
Detector Power Dissipation @ T
A
= 25°C
Derate above 25°CP
D
150 mW
2.0 (non-M), 1.76 (-M) mW/°C
5/7/03
Page 3 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
Note
* Typical values at T
A
= 25°C
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise specified)
INDIVIDUAL COMPONENT CHARACTERISTICS
Parameter Test Conditions Symbol Min Typ* Max Unit
EMITTER
Input Forward Voltage (I
F
= 10 mA) V
F
1.18 1.50 V
Reverse Leakage Current (V
R
= 6.0 V) I
R
0.001 10 µA
DETECTOR
Collector-Emitter Breakdown Voltage (I
C
= 1.0 mA, I
F
= 0) BV
CEO
30 100 V
Collector-Base Breakdown Voltage (I
C
= 100 µA, I
F
= 0) BV
CBO
70 120 V
Emitter-Collector Breakdown Voltage (I
E
= 100 µA, I
F
= 0) BV
ECO
710 V
Collector-Emitter Dark Current (V
CE
= 10 V, I
F
= 0) I
CEO
1 50 nA
Collector-Base Dark Current (V
CB
= 10 V) I
CBO
20 nA
Capacitance (V
CE
= 0 V, f = 1 MHz) C
CE
8pF
ISOLATION CHARACTERISTICS
Characteristic Test Conditions Symbol Min Typ* Max Units
Input-Output Isolation Voltage (Non ‘-M’, Black Package) (f = 60 Hz, t = 1 min) V
ISO
5300 Vac(rms)
(‘-M’, White Package) (f = 60 Hz, t = 1 sec) 7500 Vac(pk)
Isolation Resistance (V
I-O
= 500 VDC) R
ISO
10
11
Ω
Isolation Capacitance (V
I-O
= &, f = 1 MHz) C
ISO
0.5 pF
(‘-M’ White Package) 0.2 2 pF
5/7/03
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
Page 4 of 15
© 2003 Fairchild Semiconductor Corporation
TRANSFER CHARACTERISTICS
(T
A
= 25°C Unless otherwise specified.)
DC Characteristic Test Conditions Symbol Device Min Typ* Max Unit
Current Transfer Ratio,
Collector to Emitter
(I
F
= 10 mA, V
CE
= 10 V)
CTR
4N35
4N36
4N37
100
%
H11A1 50
H11A5 30
4N25
4N26
H11A2
H11A3
20
4N27
4N28
H11A4
10
(I
F
= 10 mA, V
CE
= 10 V, T
A
= -55°C)
4N35
4N36
4N37
40
(I
F
= 10 mA, V
CE
= 10 V, T
A
= +100°C)
4N35
4N36
4N37
40
Collector-Emitter
Saturation Voltage
(I
C
= 2 mA, I
F
= 50 mA)
V
CE (SAT)
4N25
4N26
4N27
4N28
0.5
V
(I
C
= 0.5 mA, I
F
= 10 mA)
4N35
4N36
4N37
0.3
H11A1
H11A2
H11A3
H11A4
H11A5
0.4
AC Characteristic
(I
F
= 10 mA, V
CC
= 10 V, R
L
= 100
Ω
)
(Fig.20) T
ON
4N25
4N26
4N27
4N28
H11A1
H11A2
H11A3
H11A4
H11A5
2µs
Non-Saturated
Turn-on Time
Non Saturated
Turn-on Time
(I
C
= 2 mA, V
CC
= 10 V, R
L
= 100
Ω
)
(Fig.20) T
ON
4N35
4N36
4N37
210µs
5/7/03
Page 5 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
* Typical values at T
A
= 25°C
AC Characteristic Test Conditions Symbol Device Min Typ* Max Unit
Turn-off Time
(I
F
= 10 mA, V
CC
= 10 V, R
L
= 100
Ω
)
(Fig.20)
T
OFF
4N25
4N26
4N27
4N28
H11A1
H11A2
H11A3
H11A4
H11A5
2
µs
(I
C
= 2 mA, V
CC
= 10 V, R
L
= 100
Ω
)
(Fig.20)
4N35
4N36
4N37
210
TRANSFER CHARACTERISTICS
(T
A
= 25°C Unless otherwise specified.) (Continued)
5/7/03
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
Page 6 of 15
© 2003 Fairchild Semiconductor Corporation
TYPICAL PERFORMANCE CURVES
Fig.3 Normalized CTR vs. Forward Current
(Black Package)
Fig.4 Normalized CTR vs. Forward Current
(White Package)
IF - FORWARD CURRENT (mA) IF - FORWARD CURRENT (mA)
0 5 10 15 20
NORMALIZED CTR
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
VCE = 5.0V
TA = 25°C
0 2 4 6 8 10 12 14 16 18 20
NORMALIZED CTR
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
VCE = 5.0V
TA = 25°C
Normalized to
IF = 10 mA
Fig. 5 Normalized CTR vs. Ambient Temperature
(Black Package)
Fig. 6 Normalized CTR vs. Ambient Temperature
(White Package)
-75 -50 -25 0 25 50 75 100 125
NORMALIZED CTR
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Normalized to
IF = 10 mA
TA = 25°C
IF = 10 mA
IF = 20 mA
TA - AMBIENT TEMPERATURE (°C) TA - AMBIENT TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100
NORMALIZED CTR
0.2
0.4
0.6
0.8
1.0
1.2
1.4
IF = 5 mA
IF = 5 mA
IF = 10 mA
IF = 20 mA
Normalized to
IF = 10 mA
TA = 25°C
Normalized to
IF = 10 mA
IF - LED FORWARD CURRENT (mA)
VF - FORWARD VOLTAGE (V)
Fig. 2 LED Forward Voltage vs. Forward Current
(White Package)
1 10 100
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
TA = 25°C
TA = -55°C
TA = 100°C
IF - LED FORWARD CURRENT (mA)
VF - FORWARD VOLTAGE (V)
Fig. 1 LED Forward Voltage vs. Forward Current
(Black Package)
1 10 100
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
TA = 25°C
TA = -55°C
TA = 100°C
5/7/03
Page 7 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
Fig. 9 CTR vs. RBE (Saturated)
(Black Package)
Fig. 10 CTR vs. RBE (Saturated)
(White Package)
R
BE
- BASE RESISTANCE (k Ω) R
BE
- BASE RESISTANCE (k Ω)
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
10 100 1000
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
V
CE
= 0.3 V
I
F
= 5 mA
I
F
= 10 mA
I
F
= 20 mA
10 100 1000
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
I
F
= 20 mA
I
F
= 10 mA
I
F
= 5 mA
V
CE
= 0.3 V
Fig. 7 CTR vs. RBE (Unsaturated)
(Black Package)
Fig. 8 CTR vs. RBE (Unsaturated)
(White Package)
R
BE
- BASE RESISTANCE (kΩ) R
BE
- BASE RESISTANCE (kΩ)
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
10 100 1000
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
I
F
= 20 mA
I
F
= 10 mA
I
F
= 5 mA
V
CE
= 5.0 V
10 100 1000
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
V
CE
= 5.0 V
I
F
= 20 mA
I
F
= 10 mA
I
F
= 5 mA
0.01 0.1 1 10
0.001
0.01
0.1
1
10
100
I
F
= 5 mA
I
F
= 20 mA
I
F
= 10 mA
Fig. 12 Collector-Emitter Saturation Voltage vs Collector Current
(White Package)
I
C
- COLLECTOR CURRENT (mA)
V
CE (SAT)
- COLLECTOR-EMITTER SATURATION VOLTAGE (V)
I
F
= 2.5 mA
T
A
= 25
˚C
Fig. 11 Collector-Emitter Saturation Voltage vs Collector Current
(Black Package)
I
C
- COLLECTOR CURRENT (mA)
V
CE (SAT)
- COLLECTOR-EMITTER SATURATION VOLTAGE (V)
0.01 0.1 1 10
0.001
0.01
0.1
1
10
100
I
F
= 2.5 mA
T
A
= 25
˚C
I
F
= 20 mA
I
F
= 10 mA
I
F
= 5 mA
5/7/03
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
Page 8 of 15
© 2003 Fairchild Semiconductor Corporation
NORMALIZED ton - (ton(RBE) / ton(open))
NORMALIZED ton - (ton(RBE) / ton(open))
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Fig. 15 Normalized ton vs. RBE
(Black Package)
Fig. 16 Normalized ton vs. RBE
(White Package)
RBE- BASE RESISTANCE (k Ω) RBE- BASE RESISTANCE (k Ω)
10 100 1000 10000 100000 10 100 1000 10000 100000
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
VCC = 10 V
IC = 2 mA
RL = 100 Ω
VCC = 10 V
IC = 2 mA
RL = 100 Ω
SWITCHING SPEED - (µs)
Fig. 14 Switching Speed vs. Load Resistor
(White Package)
R-LOAD RESISTOR (kΩ)
0.1 1 10 100
0.1
1
10
100
1000
Toff
IF = 10 mA
VCC = 10 V
TA = 25°C
Tr
Ton
Tf
Fig. 13 Switching Speed vs. Load Resistor
(Black Package)
R-LOAD RESISTOR (kΩ)
0.1 1 10 100
SWITCHING SPEED - (µs)
0.1
1
10
100
1000
Toff
IF = 10 mA
VCC = 10 V
TA = 25°C
Tr
Ton
Tf
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
VCC = 10 V
IC = 2 mA
RL = 100 Ω
VCC = 10 V
IC = 2 mA
RL = 100 Ω
NORMALIZED toff - (toff(RBE) / toff(open))
NORMALIZED toff - (toff(RBE) / toff(open))
Fig. 17 Normalized toff vs. RBE
(Black Package)
10 100 1000 10000 100000
RBE- BASE RESISTANCE (k Ω)
10 100 1000 10000 100000
RBE- BASE RESISTANCE (k Ω)
Fig. 18 Normalized toff vs. RBE
(White Package)
5/7/03
Page 9 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
Fig. 19 Dark Current vs. Ambient Temperature
TA - AMBIENT TEMPERATURE
(°C)
0 20406080100
I
CEO
- COLLECTOR -EMITTER DARK CURRENT (nA)
0.001
0.01
0.1
1
10
100
1000
10000
VCE = 10 V
TA = 25°
C
OUTPUT PULSE
INPUT PULSE
TEST CIRCUIT WAVE FORMS
trtf
INPUT
IF RL
RBE
VCC = 10V
OUTPUT
ton
10%
90%
toff
Figure 20. Switching Time Test Circuit and Waveforms
IC
Adjust IF to produce IC = 2 mA
5/7/03
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
Page 10 of 15
© 2003 Fairchild Semiconductor Corporation
Black Package (No -M Suffix)
NOTE
All dimensions are in inches (millimeters)
Package Dimensions (Through Hole) Package Dimensions (Surface Mount)
Package Dimensions (0.4” Lead Spacing) Recommended Pad Layout for
Surface Mount Leadform
0.100 (2.54)
TYP
0.020 (0.51)
MIN
0.350 (8.89)
0.330 (8.38)
0.270 (6.86)
0.240 (6.10)
PIN 1
ID.
0.022 (0.56)
0.016 (0.41)
0.070 (1.78)
0.045 (1.14)
0.200 (5.08)
0.115 (2.92)
0.300 (7.62)
TYP
0° to 15°
0.154 (3.90)
0.100 (2.54)
SEATING PLANE
0.016 (0.40)
0.008 (0.20)
Lead Coplanarity : 0.004 (0.10) MAX
0.270 (6.86)
0.240 (6.10)
0.350 (8.89)
0.330 (8.38)
0.300 (7.62)
TYP
0.405 (10.30)
MAX
0.315 (8.00)
MIN
0.016 (0.40) MIN
2
5
PIN 1
ID.
0.016 (0.41)
0.008 (0.20)
0.100 (2.54)
TYP
0.022 (0.56)
0.016 (0.41)
0.070 (1.78)
0.045 (1.14)
0.200 (5.08)
0.165 (4.18)
4
3
0.020 (0.51)
MIN
1
6
SEATING PLANE
0.016 (0.40)
0.008 (0.20)
0.070 (1.78)
0.045 (1.14)
0.350 (8.89)
0.330 (8.38)
0.154 (3.90)
0.100 (2.54)
0.200 (5.08)
0.135 (3.43)
0.004 (0.10)
MIN
0.270 (6.86)
0.240 (6.10)
0.400 (10.16)
TYP
0° to 15°
0.022 (0.56)
0.016 (0.41)
0.100 (2.54) TYP
PIN 1 ID
0.070
(
1.78
)
0.060
(
1.52
)
0.030
(
0.76
)
0.100
(
2.54
)
0.295
(
7.49
)
0.415
(
10.54
)
5/7/03
Page 11 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
White Package (-M Suffix)
NOTE
All dimensions are in inches (millimeters)
Package Dimensions (Through Hole) Package Dimensions (Surface Mount)
Package Dimensions (0.4” Lead Spacing) Recommended Pad Layout for
Surface Mount Leadform
0.350 (8.89)
0.320 (8.13)
0.260 (6.60)
0.240 (6.10)
0.320 (8.13)
0.070 (1.77)
0.040 (1.02) 0.014 (0.36)
0.010 (0.25)
0.200 (5.08)
0.115 (2.93)
0.100 (2.54)
0.015 (0.38)
0.020 (0.50)
0.016 (0.41) 0.100 (2.54) 15°
0.012 (0.30)
Pin 1 ID
SEATING PLANE
0.350 (8.89)
0.320 (8.13)
0.260 (6.60)
0.240 (6.10)
0.390 (9.90)
0.332 (8.43)
0.070 (1.77)
0.040 (1.02)
0.014 (0.36)
0.010 (0.25)
0.320 (8.13)
0.035 (0.88)
0.006 (0.16)
0.012 (0.30)
0.008 (0.20)
0.200 (5.08)
0.115 (2.93)
0.025 (0.63)
0.020 (0.51)
0.020 (0.50)
0.016 (0.41)
0.100 [2.54]
PIN 1 ID
SEATING PLANE
0.350 (8.89)
PIN 1 ID
0.320 (8.13)
0.260 (6.60)
0.240 (6.10)
0.070 (1.77)
SEATING PLANE
0.040 (1.02) 0.014 (0.36)
0.010 (0.25)
0.200 (5.08)
0.115 (2.93)
0.020 (0.50)
0.016 (0.41)
0.100 [2.54]
0.100 (2.54)
0.015 (0.38)
0.012 (0.30)
0.008 (0.21)
0.425 (10.80)
0.400 (10.16)
0.070
(
1.78
)
0.060
(
1.52
)
0.030
(
0.76
)
0.100
(
2.54
)
0.305
(
7.75
)
0.425
(
10.79
)
5/7/03
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
Page 12 of 15
© 2003 Fairchild Semiconductor Corporation
ORDERING INFORMATION
MARKING INFORMATION
Order Entry Identifier
Black Package (No Suffix) White Package (-M Suffix) Option
.S S Surface Mount Lead Bend
.SD SR2 Surface Mount; Tape and reel
.W T 0.4" Lead Spacing
.300 V VDE 0884
.300W TV VDE 0884, 0.4" Lead Spacing
.3S SV VDE 0884, Surface Mount
.3SD SR2V VDE 0884, Surface Mount, Tape & Reel
4N25
V XX YY K
Black Package, No Suffix
1
2
6
43 5
4N25
V X YY Q
White Package, -M Suffix
1
2
6
43 5
*Note – Parts built in the white package (M suffix) that do not have the ‘V’ option (see
definition 3 above) that are marked with date code ‘325’ or earlier are marked in the
portrait format.
Definitions
1 Fairchild logo
2 Device number
3VDE mark (Note: Only appears on parts ordered with VDE
option – See order entry table)
4
One or two digit year code
• Two digits for black package parts, e.g., ‘03’
• One digit for white package parts, e.g., ‘3’
5 Two digit work week ranging from ‘01’ to ‘53’
6 Assembly package code
5/7/03
Page 13 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
QT Carrier Tape Specifications (Black Package, No Suffix)
4.0 ± 0.1
Ø1.55 ± 0.05
User Direction of Feed
4.0 ± 0.1
1.75 ± 0.10
7.5 ± 0.1
16.0 ± 0.3
12.0 ± 0.1
0.30 ± 0.05
13.2 ± 0.2
4.85 ± 0.20
0.1 MAX 10.30 ± 0.20
9.55 ± 0.20
Ø1.6 ± 0.1
QT Carrier Tape Specifications (White Package, -M Suffix)
4.0 ± 0.1
Ø1.5 MIN
User Direction of Feed
2.0 ± 0.05
1.75 ± 0.10
11.5 ± 1.0
24.0 ± 0.3
12.0 ± 0.1
0.30 ± 0.05
21.0 ± 0.1
4.5 ± 0.20
0.1 MAX 10.1 ± 0.20
9.1 ± 0.20
Ø1.5 ± 0.1/-0
5/7/03
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
Page 14 of 15
© 2003 Fairchild Semiconductor Corporation
Reflow Profile (White Package, -M Suffix)
Reflow Profile (Black Package, No Suffix)
Ramp up = 2–10°C/sec • Peak reflow temperature: 245°C (package surface temperature)
• Time of temperature higher than 183°C for 120–180 seconds
• One time soldering reflow is recommended
230°C, 10–30 s
Time (Minute)
0
300
250
200
150
100
50
0
0.5 1 1.5 2 2.5 3 3.5 4 4.5
Temperature (°C)
Time above 183°C, 120–180 sec
245°C peak
• Peak reflow temperature: 225° C (package surface temperature)
• Time of temperature higher than 183° C for 60–150 seconds
• One time soldering reflow is recommended
215°C, 10–30 s
225 C peak
Time (Minute)
0
300
250
200
150
100
50
0
0.5 1 1.5 2 2.5 3 3.5 4 4.5
Temperature (°C)
Time above 183° C, 60–150 sec
Ramp up = 3 C/sec
5/7/03
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME
ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Page 15 of 15
© 2003 Fairchild Semiconductor Corporation
GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25 4N26 4N27 4N28 4N35 4N36
4N37 H11A1 H11A2 H11A3 H11A4 H11A5
