LITE-ON DCC
RELEASE
LITE-ON Technology Corp. / Optoelectronics
No.90,Chien 1 Road, Chung Ho, New Taipei City 23585, Taiwan, R.O.C.
Tel: 886-2-2222-6181 Fax: 886-2-2221-1948 / 886-2-2221-0660
http://www.liteon.com/opto
Photocoupler
Product Data Sheet
6N137-L series
Spec No.: DS70-2008-0035
Effective Date: 04/19/2016
Revision: C
BNS-OD-FC001/A4
BNS-OD-FC001/A4
BNS-OD-FC001/A4
BNS-OD-FC001/A4
1/19
Photocoupler
6N137-L series
1. DESCRIPTION
The 6N137-L consists of a high efficient AlGaAs Light Emitting Diode and a high speed optical detector. This design provides
excellent AC and DC isolation between the input and output sides of the Optocoupler. The output of the optical detector features an
open collector Schottky clamped transistor. The enable function allows the optical detector to be strobed. A guaranteed common mode
transient immunity is up to 10k at 3.3V.
The Optocoupler operational parameters are guaranteed over the temperature range from -40oC ~ +85oC.
1.1 Features
3.3V / 5V Dual Supply Voltages
Low power consumption
High speed 15MBd typical
10kCM = 1000V
Guaranteed AC and DC performance over temperature -40oC ~ +85oC.
LVTTL/LVCMOS Compatible.
Available in Dual-in-line, Wide lead spacing, Surface mounting package.
Strobable output.
Safety approval
UL/ cUL 1577, 5000 Vrms/1 min
VDE DIN EN60747-5-5, VIORM = 567 Vpeak
1.2 Applications
Isolation in line receivers
Digital isolation for A/D, D/A conversion
Ground loop elimination
Feedback Element in Switching Mode Power Supplier
Pulse transformer replacement
Power transistor isolation in motor drives
Interface between Microprocessor system, computer and their peripheral
1.3 Functional Diagram
be connected between Pin8 and Pin5
Truth Table (Positive Logic)
LED
ENABLE
OUT
ON
H
L
OFF
H
H
ON
L
H
OFF
L
H
ON
NC
L
OFF
NC
H
2/19
Photocoupler
6N137-L series
2. PACKAGE DIMENSIONS
2.1 6N137-L 2.2 6N137M-L
2.3 6N137S-L
Notes :
1. Year date code.
2. 2-digit work week.
3. Factory identification mark shall be marked
(Y: Thailand , W: China-CZ)
4. For VDE option.
Dimensions in millimeters (inches).
3/19
Photocoupler
6N137-L series
3. TAPING DIMENSIONS
3.1 6N137S-TA-L 3.2 6N137S-TA1-L
3.3 Quantities Per Reel
Description
Symbol
Dimension in mm (inch)
Tape wide
W
16±0.3 (0.63)
Pitch of sprocket holes
P0
4±0.1 (0.15)
Distance of compartment
F
7.5±0.1 (0.295)
P2
2±0.1 (0.079)
Distance of compartment to compartment
P1
12±0.1 (0.472)
Package Type
TA / TA1
Quantities (pcs)
1000
4/19
Photocoupler
6N137-L series
4. RATING AND CHARACTERISTICS
4.1 Absolute Maximum Ratings at Ta=25°C *1
Parameter
Symbol
Rating
Unit
Note
Input
Average Forward Input Current
IF
20
mA
2
Reverse Input Voltage
VR
5
V
Power Dissipation
PI
40
mW
Enable Input Voltage
VE
Vcc+0.5
V
Enable Input current
IE
5
mA
Output
Output Collector Current
IO
50
mA
Output Collector Voltage
VO
7
V
Output Collector Power Dissipation
Po
85
mW
Isolation Voltage
Viso
5000
Vrms
Supply Voltage
VCC
7
V
Operating Temperature
Topr
-40 ~ +85
oC
Storage Temperature
Tstg
-55 ~ +125
oC
Lead Solder Temperature *2
Tsol
260
oC
1. Ambient temperature = 25oC, unless otherwise specified. Stresses exceeding the absolute maximum ratings
can cause permanent damage to the device. Exposure to absolute maximum ratings for long periods of time
can adversely affect reliability.
2. 260oC for 10 seconds. Refer to Lead Free Reflow Profile.
5/19
Photocoupler
6N137-L series
4.2 Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Operating Temperature
TA
-40
85
oC
Supply Voltage
VCC
2.7
3.6
V
4.5
5.5
Low Level Input Current
IFL
0
250

High Level Input Current
IFH
5
15
mA
Low Level Enable Voltage
VEL
0
0.8
V
High Level Enable Voltage
VEH
2
VCC
V
Output Pull-up Resistor
RL
330
4k
Fan Out (at RL
N
5
TTL Loads
6/19
Photocoupler
6N137-L series
4.3 ELECTRICAL OPTICAL CHARACTERISTICS at Ta = 25°C
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test Condition
Input
Input Forward Voltage
VF
1.38
1.70
V
IF= 10mA
Input Forward Voltage
Temperature Coefficient
F
-1.5
mV/OC
IF= 10mA
Input Reverse Voltage
BVR
5.0
V
IR 
Input Threshold Current
ITH
1.5
5
mA
VE = 2V, VCC = 3.3V,
VO = 0.6V
IOL (sinking) = 13mA
Input Capacitance
CIN
34
pF
f = 1MHz, VF = 0V
Detector
High Level Supply Current
ICCH
3.8
10
uA
VE= 0.5V, VCC= 3.3V,
IF = 0mA
Low Level Supply Current
ICCL
5.8
13
mA
VE= 0.5V, VCC= 3.3V,
IF =10mA
High Level Enable Current
IEH
-0.19
9
-1.6
mA
VCC = 3.3V, VE = 2V
Low Level Enable Current
IEL
-0.41
-1.6
mA
VCC = 3.3V, VE = 0.5V
High Level Enable Voltage
VEH
2
V
Low Level Enable Voltage
VEL
0.8
V
High Level Output Current
IOH
5
100

VE = 2V, VCC = 3.3V,
VO = 3.3V, IF 
Low Level Output Voltage
VOL
0.3
0.60
V
VE = 2V, VCC =3.3V,
IF = 5mA,
IOL (sinking) = 13mA
Specified over recommended temperature (TA = -40oC to +85oC, 2.7V VCC 3.6V), IF = 7.5mA unless otherwise specified. All
typicals at TA = 25oC, VCC = 3.3V.
7/19
Photocoupler
6N137-L series
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test Condition
Input
Input Forward Voltage
VF
1.38
1.70
V
IF= 10mA
Input Forward Voltage
Temperature Coefficient
F
-1.5
mV/OC
IF= 10mA
Input Reverse Voltage
BVR
5.0
V
IR 
Input Threshold Current
ITH
1.35
5
mA
VCC = 5.5V, VO = 0.6V
IOL > 13mA
Input Capacitance
CIN
34
pF
f = 1MHz, VF = 0V
Detector
High Level Supply Current
ICCH
6.1
10
uA
VE = 0.5V, VCC = 5.5V,
IF = 0mA
Low Level Supply Current
ICCL
8.3
13
mA
VE = 0.5V, VCC= 5.5V,
IF =10mA
High Level Enable Current
IEH
-0.6
-1.6
mA
VCC = 5.5V, VE = 2V
Low Level Enable Current
IEL
-0.9
-1.6
mA
VCC = 5.5V, VE = 0.5V
High Level Enable Voltage
VEH
2
V
Low Level Enable Voltage
VEL
0.8
V
High Level Output Current
IOH
0.9
100

VE = 2V, VCC = 5.5V,
VO = 5.5V, IF 
Low Level Output Voltage
VOL
0.4
0.60
V
VCC =5.5V, IF = 5mA,
IOL (sinking) = 13mA
Specified over recommended temperature (TA = -40oC to +85oC, 4.5V VCC 5.5V), IF = 7.5mA unless otherwise specified. All
typicals at TA = 25oC, VCC = 5.0V.
8/19
Photocoupler
6N137-L series
5. SWITCHING SPECIFICATION
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test Condition
Note
Propagation Delay Time to High
Output Level
tPLH
25
48
90
ns
RL L =15pF
3
Propagation Delay Time to Low
Output Level
tPHL
25
35
75
ns
4
Pulse Width Distortion
|tPLH -
tPHL|
13
ns
Propagation Delay Skew
tPSK
40
Output Rise Time (10 to 90%)
tr
21
ns
Output Fall Time (90 to 10%)
tf
6.6
ns
Propagation Delay Time of
Enable from VEH to VEL
tELH
27
ns
RL = 350, CL=15pF,
VEL = 0V, VEH = 3V
5
Propagation Delay Time of
Enable from VEL to VEH
tEHL
9
ns
RL = 350, CL=15pF,
VEL = 0V, VEH = 3V
6
Specified over recommended temperature (TA = -40oC to +85oC, 2.7V VCC 3.6V), IF = 7.5mA unless otherwise specified. All
typicals at TA = 25oC, VCC = 3.3V.
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test Condition
Note
Propagation Delay Time to High
Output Level
tPLH
25
40
75
ns
TA = 25oC
RL
CL =15pF
3
100
Propagation Delay Time to Low
Output Level
tPHL
25
32
75
ns
TA = 25oC
RL=
CL =15pF
4
100
Pulse Width Distortion
|tPLH -
tPHL|
8
ns
RL L =15pF
Propagation Delay Skew
tPSK
40
Output Rise Time (10 to 90%)
tr
22
ns
Output Fall Time (90 to 10%)
tf
6.9
ns
Propagation Delay Time of
Enable from VEH to VEL
tELH
28
ns
RL = 350, CL=15pF,
VEL = 0V, VEH = 3V
5
Propagation Delay Time of
Enable from VEL to VEH
tEHL
12
ns
RL = 350, CL=15pF,
VEL = 0V, VEH = 3V
6
Specified over recommended temperature (TA = -40oC to +85oC, 4.5V VCC 5.5V), IF = 7.5mA unless otherwise specified. All
typicals at TA = 25oC, VCC = 5.0V.
9/19
Photocoupler
6N137-L series
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test Condition
Note
Logic High Common Mode
Transient Immunity
|CMH|
10
15
k
VCC = 3.3V
VCM = 1000V
RL 
IF = 0mA
TA = 25oC
7
10
15
VCC = 5V
VCM = 1000V
RL 
IF = 0mA
TA = 25oC
Logic Low Common Mode
Transient Immunity
|CML|
10
15
k
VCC = 3.3V
VCM = 1000V
RL 
IF = 10.0mA
TA = 25oC
8
10
15
VCC = 5V
VCM = 1000V
RL 
IF = 10.0mA
TA = 25oC
10/19
Photocoupler
6N137-L series
6. ISOLATION CHARACTERISTIC
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test Condition
Note
Input-Output Insulation Leakage
Current
II-O
1.0

45% RH, t = 5s,
VI-O = 3kV DC, TA =25oC
9
Withstand Insulation Test
Voltage
VISO
5000
VRMS

TA = 25oC
9, 10
Input-Output Resistance
RI-O
1012
VI-O = 500V DC
9,
Input-Output Capacitance
CI-O
1.0
p
F
f = 1MHz, TA = 25oC
9,
Specified over recommended temperature (TA = -40oC to +85oC) unless otherwise specified. Typical values applies to TA = 25oC
Notes
1. A 0.1µF or bigger bypass capacitor for VCC is needed as shown in Fig.1
2. Peaking driving circuit may be used to speed up the LED. The peak drive current of LED may go up to 50mA and maximum
pulse 
3. tPLH (propagation delay) is measured from the 3.75 mA point on the falling edge of the input pulse to the 1.5 V point on the rising
edge of the output pulse.
4. tPHL (propagation delay) is measured from the 3.75 mA point on the rising edge of the input pulse to the 1.5 V point on the falling
edge of the output pulse.
5. The tELH enable propagation delay is measured from the 1.5 V point on the falling edge of the enable input pulse to the 1.5 V
point on the rising edge of the output pulse.
6. The tEHL enable propagation delay is measured from the 1.5 V point on the rising edge of the enable input pulse to the 1.5 V
point on the falling edge of the output pulse.
7. CMH is the maximum tolerable rate of rise of the common mode voltage to assure that the output will remain in a high logic state
(i.e., VO > 2.0 V).
8. CML is the maximum tolerable rate of fall of the common mode voltage to assure that the output will remain in a low logic state
(i.e., VO < 0.8 V).
9. Device is considered a two-terminal device: pins 1, 2, 3 and 4 shorted together, and pins 5, 6, 7 and 8 shorted together.
10. In accordance with UL1577, each optocoupler is proof tested by applying an insulation test voltage 5250Vrms for one second
(leakage current less than 10 A). This test is performed before the 100% production test for partial discharge
11/19
Photocoupler
6N137-L series
7. SWITCHING TIME TEST CIRCUIT
IFMONITOR
PULSE
GEN.
ZO
tr= 5 ns
IF
tr=
RL
3.3V or 5V
VO
=15 pF
CL
0.1 uF
Bypass
MONITOR
CLINCLUDES PROBE AND STRAY WIRING CAPACITANCE
INPUT( )
IF
OUTPUT( )
VO
tPHL tPLH
=7.5mA
IF
=3.75mA
IF
1.5V
Figure 1: Test Circuit for tPHL and tPLH
PULSE
GEN.
ZO 
tr= 5 ns
tr=
RL
3.3V or 5V
VO
=15 pF
CL
0.1 uF
Bypass
MONITOR
CLINCLUDES PROBE AND STRAY WIRING CAPACITANCE
INPUT( )
OUTPUT( )
VO
tEHL tELH
3.0V
1.5V
1.5V
=7.5mA
IF
VE
MONITOR
VE
Figure 2: Single Channel Test Circuit for Common Mode Transient Immunity
12/19
Photocoupler
6N137-L series
RL
3.3V or 5V
VO
0.1 uF
Bypass
MONITOR
IF
+ -
VCM
PULSE GEN.
B
A
ZO 
VCM
VO
SW A: IF=0mA CMH
CML
SW B: IF=7.5mA
VO
0V
5V
5V
VO(MIN) VO(MAX)
VCM(PEAK)
Figure 3: Single Channel Test Circuit for Common Mode Transient Immunity
13/19
Photocoupler
6N137-L series
8. CHARACTERISTIC CURVES
0
5
10
15
20
25
30
35
-40 -20 0 20 40 60 80 100
IOH - High Level Output Current - A
TA- Ambient Temperature - oC
VCC = 3.3V
VO= 5.5V
VE= 2.0V
I
F
=250A
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-40 -20 0 20 40 60 80 100
IOH - High Level Output Current - A
TA- Ambient Temperature - oC
VCC = 5.0V
VO= 5.5V
VE= 2.0V
IF= 250A
0
0.5
1
1.5
2
2.5
3
3.5
4
-40 -20 0 20 40 60 80 100
ITH - Input Threshold Current - mA
TA- Ambient Temperature - oC
RL
RL
RL
VCC = 3.3V
VO= 0.6V
Figure 4: Typical High Level Output Current vs. Ambient Temperature
Figure 5: Typical Input Diode Threshold Current vs. Ambient Temperature
14/19
Photocoupler
6N137-L series
0.1
0.2
0.3
0.4
0.5
0.6
-40 -20 0 20 40 60 80 100
VOL - Low Level Output Voltage - V
TA- Ambient Temperature - oC
VCC = 3.3V
VE= 2.0V
IF= 5.0mA
IOL = 13mA
30
40
50
60
70
-40 -20 0 20 40 60 80 100
IOL - Low Level Output Current - mA
TA- Ambient Temperature - oC
IF= 5mA
VCC = 3.3V
VE= 2.0V
VOL = 0.6V
Figure 6: Typical Low Level Output Voltage vs. Ambient Temperature
Figure 7: Typical Low Level Output Current vs. temperature
Figure 8: Typical Input Diode Forward Characteristic
15/19
Photocoupler
6N137-L series
0
10
20
30
40
50
60
70
80
90
100
-40 -20 0 20 40 60 80 100
tP - Propagation Delay - ns
TA- Ambient Temperature - oC
VCC = 3.3V
IF= 7.5mA
tPHL, RL= 350
tPLH, RL= 350
0
10
20
30
40
50
60
70
80
90
100
-40 -20 0 20 40 60 80 100
t
P-Propagation Delay -ns
T
A-Ambient Temperature -o
C
V
CC = 5.0V
IF= 7.5mA
RL= 4K
RL= 350, 1K
RL= 350, 1K, 4K
PLH
PHL
0
5
10
15
20
-40 -20 0 20 40 60 80 100
PWD - Pulse Width Distortion - ns
TA- Ambient Temperature - oC
VCC = 3.3V
IF= 7.5mA
RL= 350
0
10
20
30
40
50
-40 -20 0 20 40 60 80 100
PWD -Pulse Width Distortion -ns
T
A-Ambient Temperature -o
C
R
L= 4K
R
L= 350R
L= 1K
V
CC = 5.0V
IF= 7.5mA
Figure 9: Typical Propagation Delay vs. Ambient Temperature
Figure 10: Typical Pulse Width Distortion vs. Ambient Temperature
16/19
Photocoupler
6N137-L series
9. TEMPERATURE PROFILE OF SOLDERING
9.1 IR Reflow soldering (JEDEC-STD-020C compliant)
One time soldering reflow is recommended within the condition of temperature and time profile shown below. Do not solder more than three
times.
Profile item
Conditions
Preheat
- Temperature Min (TSmin)
- Temperature Max (TSmax)
- Time (min to max) (ts)
150
200
90±30 sec
Soldering zone
- Temperature (TL)
- Time (tL)
217
60 ~ 100 sec
Peak Temperature (TP)
260
Ramp-up rate
3
Ramp-down rate
3~6
60 ~ 120 sec
25 C
150 C
200 C
260 C
217 C
60-100 sec
Time (sec)
Temperature ( C)
20 sec
Tsmax
ts (Preheat)
tL (Soldering)
Tsmin
TL
TP
Ramp-down
Ramp-up
17/19
Photocoupler
6N137-L series
9.2 Wave soldering (JEDEC22A111 compliant)
One time soldering is recommended within the condition of temperature.
Temperature: 260+0/-5
Time: 10 sec.
Preheat temperature:25 to 140
Preheat time: 30 to 80 sec.
9.3 Hand soldering by soldering iron
Allow single lead soldering in every single process. One time soldering is recommended.
Temperature: 380+0/-5
Time: 3 sec max.
18/19
Photocoupler
6N137-L series
10. RECOMMENDED FOOT PRINT PATTERNS (MOUNT PAD)
Note :
Dimensions in millimeters.
19/19
Photocoupler
6N137-L series
11. NAMING RULE
Example : 6N137S-TA1-L
Example : 6N137STA1-V-L
12. NOTES
LiteOn is continually improving the quality, reliability, function or design and LiteOn reserves the right to make changes
without further notices.
The products shown in this publication are designed for the general use in electronic applications such as office automation
equipment, communications devices, audio/visual equipment, electrical application and instrumentation.
For equipment/devices where high reliability or safety is required, such as space applications, nuclear power control
equipment, medical equipment, etc, please contact our sales representatives.
When requiring a device for any in advice.
If there are any questions about the contents of this publication, please contact us at your convenience.
The contents described herein are subject to change without prior notice.
Immerge units body in solder paste is not recommended.
(2) TAPING TYPE (TA, TA1)
Please refer to orientation of taping on Page: P3
(1) No suffix = Dual-in-Line package
M = Wide lead spacing package
S = Surface mounting package
(3) VDE Option
(4) Liteon P/N
DEVICE PART NUMBER
(2) TAPING TYPE (TA, TA1)
Please refer to orientation of taping on Page: P3
(1) No suffix = Dual-in-Line package
M = Wide lead spacing package
S = Surface mounting package
DEVICE PART NUMBER
6N137 (1)-(2) -L
(3) Liteon P/N
6N137 (1)(2)-V -L