H11A1SR2V-M - Fairchild Semiconductor

6/15/05

WHITE PACKAGE (-M SUFFIX)

Page 1 of 15

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

BLACK PACKAGE (NO -M SUFFIX)

6

1

6

1

6

1

6

1

6

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

6/15/05

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

Page 2 of 15

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°C P

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°C P

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°C P

D

150 mW

2.0 (non-M), 1.76 (-M) mW/°C

6/15/05

Page 3 of 15

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

150 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

6/15/05

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

Page 4 of 15

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

Tu r n-on Time

Non Saturated

Tu r n-on Time

(I

C

= 2 mA, V

CC

= 10 V, R

L

= 100

Ω

)

(Fig.20) T

ON

4N35

4N36

4N37

210µs

6/15/05

Page 5 of 15

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

Tu r n-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)

6/15/05

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

Page 6 of 15

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)

051015 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

02468101214 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 = 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)

110100

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)

110100

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

6/15/05

Page 7 of 15

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

6/15/05

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

Page 8 of 15

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))

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)

6/15/05

Page 9 of 15

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)

020406080100

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

6/15/05

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

Page 10 of 15

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)

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)

0.012 (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]

Seating Plane

Pin 1 ID

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

)

6/15/05

Page 11 of 15

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

)

6/15/05

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

Page 12 of 15

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

1Fairchild logo

2Device 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’

5Two digit work week ranging from ‘01’ to ‘53’

6 Assembly package code

6/15/05

Page 13 of 15

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

6/15/05

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

Page 14 of 15

Reﬂow Proﬁle (White Package, -M Sufﬁx)

Reﬂow Proﬁle (Black Package, No Sufﬁx)

300

280

260

240

220

200

180

160

140

120

100

80

60

40

20

0

°C

Time (s)

0 60 180120 270

260°C

>245°C = 42 Sec

Time above

183°C = 90 Sec

360

1.822°C/Sec Ramp up rate

33 Sec

• 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

6/15/05

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

GENERAL PURPOSE 6-PIN

PHOTOTRANSISTOR OPTOCOUPLERS

4N25 4N26 4N27 4N28 4N35 4N36

4N37 H11A1 H11A2 H11A3 H11A4 H11A5