DESCRIPTION
The MCT6X Optocouplers have two channels for density applica-
tions. For four channel applications, two-packages fit into a standard
16-pin DIP socket. Each channel is an NPN silicon planar phototran-
sistor optically coupled to a gallium arsenide infrared emitting diode.
FEATURES
• Two isolated channels per package
• Two packages fit into a 16 lead DIP socket
• Choice of three current transfer ratios
• Underwriters Laboratory (U.L.) recognized File E90700
APPLICATIONS
• AC Line/Digital Logic - isolate high voltage transients
• Digital Logic/Digital Logic - Eliminate spurious grounds
• Digital Logic/AC Triac Control - isolate high voltage transients
• Twisted pair line receiver - Eliminate ground loop feedthrough
• Telephone/Telegraph line receiver - isolate high voltage transients
• High Frequency Power Supply Feedback Control - Maintain floating
grounds and transients
• Relay contact monitor - isolate floating grounds and transients
• Power supply monitor - Isolate transients
DUAL
PHOTOTRANSISTOR OPTOCOUPLERS
EMITTER
COLLECTOR
ANODE
CATHODE
1
2
3
4 5
6
7
8
EMITTER
COLLECTOR
ANODE
CATHODE
Equivalent Circuit
8
8
1
8
1
1
Rating Symbol Value Unit
EMITTER (Each channel)
Forward Current - Continuous IF60 mA
Forward Current - Peak (PW = 1µs, 300pps) IF(pk) 3A
Reverse Voltage VR3.0 V
LED Power Dissipation @ TA= 25°CPD
100 mW
Derate above 25°C (Total Input) 1.3 mW/°C
DETECTOR (Each channel) IC30 mA
Collector Current - Continuous
Detector Power Dissipation @ TA = 25°CPD
150 mW
Derate above 25°C 2.0 mW/°C
TOTAL DEVICE TSTG -55 to +150 °C
Storage Temperature
Operating Temperature TOPR -55 to +100 °C
Lead Solder Temperature TSOL 250 for 10 sec °C
Total Device Power Dissipation @ TA = 25°CPD
400 mW
Derate above 25°C 5.33 mW/°C
ABSOLUTE MAXIMUM RATINGS
SCHEMATIC
MCT6 MCT61 MCT62
2001 Fairchild Semiconductor Corporation
DS300245 2/26/01 1 OF 7 www.fairchildsemi.com
Parameter Test Conditions Symbol Min Typ** Max Unit
EMITTER (IF= 20 mA) VF1.2 1.5 V
Input Forward Voltage
Reverse Voltage (IR= 10 µA) VR3.0 25 V
Reverse Current (VR= 5 V) IR0.001 10 µA
Junction Capacitance (VF= 0 V, f = 1 MHz) CJ50 pF
DETECTOR (IC= 1.0 mA, IF= 0) BVCEO 30 85 V
Collector-Emitter Breakdown Voltage
Emitter-Collector Breakdown Voltage (IE= 100 µA, IF= 0) BVECO 613 V
Collector-Emitter Dark Current (VCE = 10 V, IF= 0) ICEO 5 100 nA
Capacitance (VCE = 0 V, f = 1 MHz) CCE 8pF
INDIVIDUAL COMPONENT CHARACTERISTICS
ELECTRICAL CHARACTERISTICS (TA= 25°CUnless otherwise specified.)
DC Characteristic Test Conditions Symbol Min Typ** Max Units
Current Transfer Ratio, Collector-Emitter (IF= 10 mA, VCE = 10 V) 20
MCT6 CTR %
MCT61 (IF= 5 mA, VCE = 5 V) 50
MCT62 100
Saturation Voltage (IF= 16 mA, IC= 2 mA) VCE(sat) 0.15 0.40 V
TRANSFER CHARACTERISTICS
AC Characteristic Test Conditions Symbol Min Typ** Max Units
SWITCHING TIMES (RL= 100 1, IC= 2 mA, VCC = 10 V) ton 2.4 µs
Non-Saturated Turn-on Time
Non-Saturated Turn-off Time (RL= 100 1, IC= 2 mA, VCC = 10 V) toff 2.4 µs
TRANSFER CHARACTERISTICS
Characteristic Test Conditions Symbol Min Typ** Max Units
Input-Output Isolation Voltage (II-O 61 µA, 1 min.) VISO 5300 Vac(rms)
Isolation Resistance (VI-O = 500 VDC) RISO 1011 1
Isolation Capacitance (f = 1 MHz) CISO 0.5 pf
ISOLATION CHARACTERISTICS
** All typicals at TA= 25°C
DUAL
PHOTOTRANSISTOR OPTOCOUPLERS
MCT6 MCT61 MCT62
www.fairchildsemi.com 2 OF 7 2/26/01 DS300245
Normalized CTR vs. Forward Current
IF - FORWARD CURRENT (mA)
0 5 10 15 20
NORMALIZED CTR
0.0
0.2
0.4
0.6
08
1.0
1.2
1.4
VCE = 5.0V
TA = 25˚C
Normalized to
IF = 10 mA
Normalized CTR vs. Ambient Temperature
-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)
IF = 5 mA
Dark Current vs. Ambient Temperature
TA - AMBIENT TEMPERATURE (˚C)
0 25 50 75 100 125
ICEO - COLLECTOR-EMITTER DARK CURRENT (µA)
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
VCE = 10 V
DUAL
PHOTOTRANSISTOR OPTOCOUPLERS
MCT6 MCT61 MCT62
DS300245 2/26/01 3 OF 7 www.fairchildsemi.com
Switching Speed vs. Load Resistor
R-LOAD RESISTOR (kΩ)
0.1 1 10 100
SWITCHING SPEED - (µs)
0.1
1
10
100
1000
Toff
Ton
Tf
IF = 10 mA
VCC = 10 V
TA = 25˚C
Collector-Emitter Saturation Voltage vs Collector Current
IC - COLLECTOR CURRENT (mA)
VCE (SAT) - COLLECTOR-EMITTER SATURATION VOLTAGE (V)
0.01 0.1 1 10
0.001
0.01
0.1
1
10
100
IF = 20 mA
IF = 2.5 mA
IF = 10 mA
IF = 5 mA
TA = 25˚C
IF - LED FORWARD CURRENT (mA)
VF - FORWARD VOLTAGE (V)
LED Forward Voltage vs. Forward Current
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
Tr
DUAL
PHOTOTRANSISTOR OPTOCOUPLERS
MCT6 MCT61 MCT62
www.fairchildsemi.com 4 OF 7 2/26/01 DS300245
NOTE
All dimensions are in inches (millimeters)
Package Dimensions (Surface Mount)
Lead Coplanarity : 0.004 (0.10) MAX
0.270 (6.86)
0.250 (6.35)
0.390 (9.91)
0.370 (9.40)
0.022 (0.56)
0.016 (0.41)
0.100 (2.54)
TYP
0.020 (0.51)
MIN
0.070 (1.78)
0.045 (1.14)
0.300 (7.62)
TYP
0.405 (10.30)
MIN
0.315 (8.00)
MIN
0.045 [1.14]
32 14
5678
PIN 1
ID.
0.016 (0.41)
0.008 (0.20)
Package Dimensions (Through Hole)
0.200 (5.08)
0.140 (3.55)
0.100 (2.54) TYP
0.022 (0.56)
0.016 (0.41)
0.020 (0.51) MIN
0.390 (9.91)
0.370 (9.40)
0.270 (6.86)
0.250 (6.35)
PIN 1
ID.
3
0.070 (1.78)
0.045 (1.14)
241
56 78
0.300 (7.62)
TYP
0.154 (3.90)
0.120 (3.05)
0.016 (0.40)
0.008 (0.20)
15° MAX
SEATING PLANE
Package Dimensions (0.4”Lead Spacing)
0.200 (5.08)
0.140 (3.55)
0.100 (2.54) TYP
0.022 (0.56)
0.016 (0.41)
0.004 (0.10) MIN
0.390 (9.91)
0.370 (9.40)
0.270 (6.86)
0.250 (6.35)
3
0.070 (1.78)
0.045 (1.14)
241
56 78
0.400 (10.16)
TYP
0.154 (3.90)
0.120 (3.05)
0.016 (0.40)
0.008 (0.20)
0° to15°
PIN 1
ID.
SEATING PLANE
DUAL
PHOTOTRANSISTOR OPTOCOUPLERS
MCT6 MCT61 MCT62
8 - Pin Dip
0.070 (1.78)
0.060 (1.52)
0.030 (0.76)
0.100 (2.54)
0.295 (7.49)
0.415 (10.54)
DS300245 2/26/01 5 OF 7 www.fairchildsemi.com
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
4.90 ± 0.20
0.1 MAX 10.30 ± 0.20
10.30 ± 0.20
Ø1.6 ± 0.1
QT Carrier Tape Specifications (“D” Taping Orientation)
ORDERING INFORMATION
S .S Surface Mount Lead Bend
SD .SD Surface Mount; Tape and reel
W .W 0.4 Lead Spacing
300 .300 VDE 0084
300W .300W VDE 0084 and 0.4 Lead Spacing
3S .3S VDE 0084 and Surface Mount Lead Bend
3SD .3SD VDE 0084 and Surface Mount Lead Bend Tape and Reel
Order
Entry
Option Identifier Description
DUAL
PHOTOTRANSISTOR OPTOCOUPLERS
MCT6 MCT61 MCT62
www.fairchildsemi.com 6 OF 7 2/26/01 DS300245
DUAL
PHOTOTRANSISTOR OPTOCOUPLERS
MCT6 MCT61 MCT62
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
FAIRCHILDS 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.
DS300245 2/26/01 7 OF 7 www.fairchildsemi.com