LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 1Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Dual 1 Form A Solid-State Relay
DESCRIPTION
The LH1520 dual 1 Form A relays are SPST normally open
switches that can replace electromechanical relays in many
applications. They are constructed using a GaAIAs LED for
actuation control and MOSFET switches for the output. In
addition, the LH1520 SSRs employ current-limiting circuitry
to provide overvoltage protection.
FEATURES
• Dual channel
• Current limit protection
• Isolation test voltage 5300 VRMS
• Typical RON 22 Ω
• Load voltage 350 V
• Load current 140 mA
• Clean bounce free switching
• Low power consumption
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• General telecom switching
- On / off hook control
- Ring delay
- Dial pulse
- Ground start
- Ground fault protection
• Instrumentation
• Industrial controls
AGENCY APPROVALS
• UL1577, file no. E52744
S2'
S2
S1
S1'
8
5
7
6
1
4
2
3
ORDERING INFORMATION
LH1520A##TR
PART NUMBER ELECTR.
VARIATION
PACKAGE
CONFIG.
TAPE AND
REEL
PACKAGE UL
SMD-8, tubes LH1520AAC
SMD-8, tape and reel LH1520AACTR
DIP-8, tubes LH1520AB
> 0.1 mm
7.62 mm
DIP SMD
LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 2Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Note
• Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not
implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute
maximum ratings for extended periods of the time can adversely affect reliability
Note
• Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering
evaluations. Typical values are for information only and are not part of the testing requirements
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER CONDITIONS SYMBOL VALUE UNIT
INPUT
IRED continuous forward current IF50 mA
IRED reverse voltage VR5V
Input power dissipation Pdiss 80 mW
OUTPUT
DC or peak AC load voltage VL350 V
Continuous DC load current at 25 °C,
one channel IL140 mA
Continuous DC load current at 25 °C,
two channels IL100 mA
SSR output power dissipation Pdiss 550 mW
SSR
Ambient temperature range Tamb -40 to +85 °C
Storage temperature range Tstg -40 to +150 °C
Soldering temperature t = 10 s max. Tsld 260 °C
ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
INPUT
IRED forward current, switch turn-on IL = 100 mA, t = 10 ms IFon -0.252 mA
IRED forward current, switch turn-off VL = ± 350 V IFoff 0.05 0.15 - mA
IRED forward voltage IF = 10 mA VF- 1.36 1.5 V
IRED reverse current VR = 5 V IR- - 10 μA
OUTPUT
On-resistance IF = 5 mA, IL = 50 mA RON -2227Ω
Off-resistance IF = 0 mA, VL = ± 100 V ROFF 0.5 5000 - GΩ
Off-state leakage current IF = 0 mA, VL = ± 100 V IO- < 1 200 nA
IF = 0 mA, VL = ± 350 V IO- 6 1000 nA
Output capacitance IF = 0 mA, VL = 1 V, 1 MHz CO-39-pF
IF = 0 mA, VL = 50 V, 1 MHz CO-6-pF
Current limit AC/DC IF = 5 mA, t = 5 ms, VL = ± 6 V Ilimit 170 300 450 mA
TRANSFER
Capacitance (input to output) VIO = 1 V CIO -1-pF
SWITCHING CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Turn-on time IF = 5 mA, IL = 50 mA ton -0.132 ms
Turn-off time IF = 5 mA, IL = 50 mA toff -0.052 ms
LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 3Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Fig. 1 - Timing Schematic
Note
• As per IEC 60747-5-5, § 7.4.3.8.2, this optocoupler is suitable for “safe electrical insulation” only within the safety ratings. Compliance with
the safety ratings shall be ensured by means of protective circuits
Fig. 2 - Safety Power Dissipation vs. Ambient Temperature Fig. 3 - Safety Input Current vs. Ambient Temperature
SAFETY AND INSULATION RATINGS
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
Climatic classification According to IEC 68 part 1 40 / 85 / 21
Pollution degree According to DIN VDE 0109 2
Comparative tracking index Insulation group IIIa CTI 175
Maximum rated withstanding isolation voltage According to UL1577, t = 1 min VISO 5300 VRMS
Maximum transient isolation voltage According to DIN EN 60747-5-5 VIOTM 8000 Vpeak
Maximum repetitive peak isolation voltage According to DIN EN 60747-5-5 VIORM 890 Vpeak
Isolation resistance VIO = 500 V, Tamb = 25 °C RIO ≥ 1012 Ω
VIO = 500 V, Tamb = 100 °C RIO ≥ 1011 Ω
Output safety power PSO 600 mW
Input safety current ISI 240 mA
Safety temperature TS175 °C
Creepage distance ≥ 7mm
Clearance distance ≥ 7mm
Insulation thickness DTI ≥ 0.4 mm
Input to output test voltage, method B VIORM x 1.875 = VPR, 100 % production test
with tM = 1 s, partial discharge < 5 pC VPR 1669 Vpeak
Input to output test voltage, method A VIORM x 1.6 = VPR, 100 % sample test
with tM = 10 s, partial discharge < 5 pC VPR 1424 Vpeak
Input
Output
90 %
10 %
ton toff
A
C
VL
Output
0
200
400
600
800
-50 0 50 100 150
PSO-Output Safety Power (mW)
Tamb - Ambient Temperature (°C)
Two channels
One channel
0
50
100
150
200
250
300
-50 0 50 100 150
ISI-Safety Input Current (mA)
Tamb - Ambient Temperature (°C)
Two channels
One channel
LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 4Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
Fig. 4 - Maximum Load Current vs. Ambient Temperature
Fig. 5 - Forward Voltage vs. Ambient Temperature
Fig. 6 - Forward Current vs. Forward Voltage
Fig. 7 - Normalized Forward Current for Switch Turn-On vs.
Ambient Temperature
Fig. 8 - Normalized On-Resistance vs. Ambient Temperature
Fig. 9 - Output Capacitance vs. Load Voltage
0
20
40
60
80
100
120
140
160
-40-200 20406080100
IL- Load Current (mA)
Tamb - Ambient Temperature (°C)
Two channels
One channel
IF> 5 mA
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
-40-200 20406080100
VF- Forward Voltage (V)
Tamb - Ambient Temperature (°C)
IF= 10 mA
IF= 5 mA
IF= 2 mA
0
10
20
30
40
50
60
0 0.5 1.0 1.5 2.0
IF- Forward Current (mA)
VF- Forward Voltage (V)
T = 85 °C
T = 25 °C
T = -40 °C
0
0.5
1.0
1.5
2.0
2.5
-40-200 20406080100
Normalized Forward Current
for Switch Turn-On
Tamb - Ambient Temperature (°C)
Normalized to Tamb = 25 °C
IL= 100 mA
0
0.5
1.0
1.5
2.0
-40-200 20406080100
Normalized On-Resistance
Tamb - Ambient Temperature (°C)
Normalized to Tamb = 25 °C
IF= 5.0 mA
IL= 50 mA
0
10
20
30
40
50
60
0 102030405060
CO- Output Capacitance (pF)
VL- Load Voltage (V)
IF= 0 mA
f = 1 MHz
LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 5Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Fig. 10 - Off-State Leakage Current vs. Load Voltage
Fig. 11 - Turn-On Time vs. Forward Current
Fig. 12 - Normalized Turn-On Time vs. Ambient Temperature
Fig. 13 - Turn-Off Time vs. Forward Current
Fig. 14 - Normalized Turn-Off Time vs. Ambient Temperature
0.01
0.1
1
10
100
0100200300
Off-State Leakage Current (nA)
VL- Load Voltage (V)
T = 85 °C
T = 25 °C
T = -40 °C
IF= 0 mA
0
0.5
1.0
1.5
2.0
0 1020304050
Turn-On Time (ms)
IF- Forward Current (mA)
T = 85 °C
T = 25 °C
T = -40 °C
IL= 50 mA
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-40 -20 0 20 40 60 80 100
Normalized Turn-On Time
Tamb - Ambient Temperature (°C)
Normalized to Tamb = 25 °C
IF= 5 mA
0
0.04
0.08
0.12
0.16
0.20
0 1020304050
Turn-Off Time (ms)
IF- Forward Current (mA)
T = 85 °C
T = 25 °C
T = -40 °C
IL= 50 mA
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-40 -20 0 20 40 60 80 100
Normalized Turn-Off Time
Tamb - Ambient Temperature (°C)
Normalized to Tamb = 25 °C
IF= 5.0 mA
LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 6Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PACKAGE DIMENSIONS (in millimeters)
SMD-8
DIP-8
9.80 ± 0.25
6.65 ± 0.15
7.62 typ.
0.25 ± 0.10
Leads coplanarity
0.1 max.
8.00 min.0.60 min.
10.16 max.
9.77 ± 0.13
3.55 ± 0.25
0.25 ± 0.20
0.79 typ.
1.00 ± 0.10
2.54 nom.
3 x 2.54 = 7.62
Recommended footprint
8.0 min.
11.00
1.50
2.54
1.50
7.62
Pin 1 I.D.
13
4
2
8657
13
4
2
8657
Pin 1 I.D.
10.16 max.
9.77 ± 0.13
3.55 ± 0.25
0.70 ± 0.20
0.79 typ.
1.00 ± 0.10
2.54 nom.
3 x 2.54 = 7.62
0.50 ± 0.10
6.65 ± 0.15
7.62 typ.
3.04 ± 0.25
6.09 ± 0.25
3° to 9°
0.25 ± 0.10
LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 7Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PACKAGE MARKING (example)
Fig. 15 - LH1520
Note
• Tape and reel suffix (TR) is not part of the package marking
PACKING INFORMATION (in millimeters)
Fig. 16 - Tape and Reel Packing
TAPE AND REEL PACKING
TYPE UNITS/REEL
SMD-8 1000
TUBE PACKING
TYPE UNITS/TUBE TUBES/BOX UNITS/BOX
SMD-8 50 40 2000
DIP-8 50 40 2000
LH1520
V YWW 68
0.35 ± 0.05
C
L
3.81 ± 0.1
4.17 ± 0.1
12 ± 0.1 10.2 ± 0.1
2 ± 0.1 4 ± 0.1 1.75 ± 0.1
Pin 1
7.5 ± 0.1
16 + 0.3
- 0.1
10.31 ± 0.1
1.5 min.
1.5 min.
LH1520AB, LH1520AAC, LH1520AACTR
www.vishay.com Vishay Semiconductors
Rev. 1.7, 05-Jul-2018 8Document Number: 83818
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
SOLDER PROFILES
Fig. 17 - Wave Soldering Double Wave Profile
According to J-STD-020 for DIP Devices
Fig. 18 - Lead (Pb)-free Reflow Solder Profile
According to J-STD-020 for SMD Devices
HANDLING AND STORAGE CONDITIONS
ESD level: HBM class 2
Floor life: unlimited
Conditions: Tamb < 30 °C, RH < 60 %
Moisture sensitivity level 1, according to J-STD-020
948626
10
100
1000
10000
0
100
200
300
050 100 150 200 250
Axis Title
1st line
2nd line
2nd line
Temperature (°C)
Time (s)
50
150
250
2 K/s
Second
wave
First wave
5 s
Full line: typical
Dotted lines:
process limits
Lead temperature
235 °C to
260 °C
100 °C to
130 °C
ca. 200 K/s
Forced cooling
ca. 5 K/s
ca. 2 K/s
240 °C
Max. 260 °C
217 °C
255 °C
19841
10
100
1000
10000
0
100
200
300
0 50 100 150 200 300
Axis Title
1st line
2nd line
2nd line
Temperature (°C)
Time (s)
50
150
250
250
245 °C
Max. 100 s
Max. 30 s
Max. 120 s
Max. ramp down 6 °C/s
Max. ramp up 3 °C/s
Footprint and Schematic Information
www.vishay.com Vishay Semiconductors
Rev. 1.0, 09-May-17 1Document Number: 84477
For technical questions, contact: optocoupleranswers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Footprint and Schematic Information
for LH1520AAC, LH1520AACTR, LH1520AB
The footprint and schematic symbols for the following parts can be accessed using the associated links. They are available in
Eagle, Altium, KiCad, OrCAD / Allegro, Pulsonix, and PADS.
Note that the 3D models for these parts can be found on the Vishay product page.
For technical issues and product support, please contact optocoupleranswers@vishay.com.
PART NUMBER FOOTPRINT / SCHEMATIC
LH1520AAC www.snapeda.com/parts/LH1520AAC/Vishay/view-part
LH1520AACTR www.snapeda.com/parts/LH1520AACTR/Vishay/view-part
LH1520AB www.snapeda.com/parts/LH1520AB/Vishay/view-part
i179034_2
DIP
SMD
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document
or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
