6
1
FEATURES
• High current transfer ratio
-500% (MOC8020)
-1000% (MOC8021)
• No base connection for improved noise immunity
• Underwriters Laboratory (UL) recognized File# E90700
DESCRIPTION
The MOC8020 and MOC8021 are photodarlington-type optically
coupled optocouplers. The devices have a gallium arsenide infrared
emitting diode coupled with a silicon darlington phototransistor.
Parameter Symbol Value Units
TOTAL DEVICE TSTG -55 to +150 °C
Storage Temperature
Operating Temperature TOPR -55 to +100 °C
Lead Solder Temperature TSOL 260 for 10 sec °C
Total Device Power Dissipation @ TA= 25°C PD250 mW
Derate above 25°C 2.94 mW/°C
Input-Output Isolation Voltage VISO 5300 Vac(rms)
EMITTER IF60 mA
DC/Average Forward Input Current
Reverse Input Voltage VR3V
LED Power Dissipation @ TA= 25°C PD120 mW
Derate above 25°C 1.41 mW/°C
DETECTOR VCEO 50 V
Collector-Emitter Voltage
Detector Power Dissipation @ TA= 25°C PD150 mW
Derate above 25°C 1.76 mW/°C
Continuous Collector Current IC150 mA
ABSOLUTE MAXIMUM RATINGS (TA= 25°C Unless otherwise specified.)
PACKAGE DIMENSIONS
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)
NOTE
All dimensions are in inches (millimeters)
APPLICATIONS
• Appliances, measuring instruments
• I/O interface for computers
• Programmable controllers
• Portable electronics
• Interfacing and coupling systems of
different potentials and impedance
• Solid state relays
EMITTER
COLLECTOR
1
2
3
ANODE
CATHODE
4
5
6N/C
N/C
2001 Fairchild Semiconductor Corporation
DS300392 1/14/02 1 OF 5 www.fairchildsemi.com
PHOTODARLINGTON OPTOCOUPLERS
(NO BASE CONNECTION)
MOC8020 MOC8021
Parameter Test Conditions Symbol Min Typ** Max Unit
EMITTER (IF= 10 mA) VF1.15 2 V
Input Forward Voltage
Input Capacitance (VF= 0, f = 1 MHz) CIN 18 pF
Reverse Leakage Current (VR= 3.0 V) IR0.05 10 µA
DETECTOR (IC= 1.0 mA) BVCEO 50 V
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage (IE= 100 µA) BVECO 5V
Collector-Emitter Dark Current (VCE = 10 V) ICEO 100 nA
INDIVIDUAL COMPONENT CHARACTERISTICS
ELECTRICAL CHARACTERISTICS (TA= 25°CUnless otherwise specified.)
DC Characteristic Test Conditions Symbol Min Typ** Max Units
Current Transfer Ratio, MOC8020 (IF= 10 mA, VCE = 5 V) CTR 500 %
Collector-Emitter MOC8021 (IF= 10 mA, VCE = 5 V) 1000
Collector-Emitter (IF= 10 mA, IC= 25 mA) VCE(SAT) 2V
Saturation Voltage
TRANSFER CHARACTERISTICS
Characteristic Test Conditions Symbol Min Typ** Max Units
SWITCHING TIMES ton 3.5 µs
Turn-on Time (VCC= 10 V, RL= 100!, IF= 5 mA)
Turn-off Time toff 95 µs
TRANSFER CHARACTERISTICS
Characteristic Test Conditions Symbol Min Typ** Max Units
Input-Output Isolation Voltage (II-O "#1 µA, 1 min.) VISO 7500 Vac(pk)
(II-O "#1 µA, 1 min.) 5300 Vac(rms)
Isolation Resistance (VI-O = 500 VDC) RISO 1011 !
Isolation Capacitance (f = 1 MHz) CISO 0.5 pf
ISOLATION CHARACTERISTICS
Note
** Typical values at TA= 25°C
www.fairchildsemi.com 2 OF 5 1/14/02 DS300392
PHOTODARLINGTON OPTOCOUPLERS
(NO BASE CONNECTION)
MOC8020 MOC8021
Fig. 6 Turn-Off Time vs. Input Current
IF - LED INPUT CURRENT (mA)
0.1 1 10 100
T
OFF
- TIME (µs)
1
10
100
1000
VCC = 10 V
RL = 100 !
RL = 1 k!
RL = 10 !
Fig. 3 Collector Current vs. Collector-Emitter Voltage
VCE- COLLECTOR -EMITTER VOLTAGE (V)
012345678910
I
C
- COLLECTOR CURRENT (mA)
0
2
4
6
8
10
12
14
16
IF = 10 mA
IF = 5 mA
IF = 2 mA
IF = 1 mA
NORMALIZED TO:
IF = 1 mA
VCE = 5 V
Fig. 5 Turn-On Time vs. Input Current
IF - LED INPUT CURRENT (mA)
T
ON
- TIME (µs)
0.1 1 10 100
0.1
1
10
100
1000
RL = 100 !
RL = 1 k!
RL = 10 !
VCC = 10 V
TA - AMBIENT TEMPERATURE (˚C)
I
CEO
- COLLECTOR-EMITTER DARK CURRENT (nA)
Fig. 4 Dark Current vs. Ambient Temperature
0 20406080100
0.01
0.1
1
10
100
1000
10000 NORMALIZED TO:
TA = 25˚C
VCE = 10 V
Fig. 1 Output Current vs. Input Current
IF - LED INPUT CURRENT (mA)
0.1 1 10 100
CTR - CURRENT TRANSFER RATIO (NORMALIZED)
0.1
1
NORMALIZED TO:
CTR @ IF = 10 mA
TA = 25˚C
VCE = 5 V
TA = 0˚C, 25˚C
TA = 70˚C
TA = 100˚C
TA = -55˚C
TA - AMBIENT TEMPERATURE (˚C)
Fig. 2 Current Transfer Ratio vs. Ambient Temperature
-80 -60 -40 -20 0 20 40 60 80 100 120
CTR - CURRENT TRANSFER RATIO (NORMALIZED)
0.1
1
10
NORMALIZED TO:
CTR @ IF = 10 mA
TA = 25˚C
VCE = 10 V
DS300392 1/14/02 3 OF 5 www.fairchildsemi.com
PHOTODARLINGTON OPTOCOUPLERS
(NO BASE CONNECTION)
MOC8020 MOC8021
S .S Surface Mount Lead Bend
SD .SD Surface Mount; Tape and reel
W .W 0.4” Lead Spacing
300 .300 VDE 0884
300W .300W VDE 0884, 0.4” Lead Spacing
3S .3S VDE 0884, Surface Mount
3SD .3SD VDE 0884, Surface Mount, Tape & Reel
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 (“D” Taping Orientation)
ORDERING INFORMATION
Order
Option Entry Description
Identifier
www.fairchildsemi.com 4 OF 5 1/14/02 DS300392
PHOTODARLINGTON OPTOCOUPLERS
(NO BASE CONNECTION)
MOC8020 MOC8021
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.
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 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.
DS300392 1/14/02 5 OF 5 www.fairchildsemi.com
PHOTODARLINGTON OPTOCOUPLERS
(NO BASE CONNECTION)
MOC8020 MOC8021
