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LH1521BAC/ BACTR/ BB
Vishay Semiconductors
Dual 1 Form B Solid State Relay
DIP SMD
Features
* * * * * * * * * * * Dual Channel (LH1501) Isolation test Voltage 3750 VRMS Typical RON 20 e3 Load Voltage 350 V Load Current 150 mA High Surge Capability Clean Bounce Free Switching Low Power Consumption SMD Lead Available on Tape and Reel Lead (Pb)-free component Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC
S1 8 S1 S1'
S1' S2 76
S2' 5
S2
i179046
S2' 1 2 3 4
Description
The LH1521 dual 1 Form B relays are SPST normally closed switches that can replace electromechanical relays in many applications. The relays are constructed as a multi chip hybrid device. Actuation control is via an Infrared LED. The output switch is a combination of a photodiode array with MOSFET switches and control circuity.
Agency Approvals
* UL1577, File No. E52744 System Code H or J, Double Protection * CSA - Certification 093751
Applications
* General Telecom Switching - On/off Hook Control - Ring Delay - Dial Pulse - Ground Start - Ground Fault Protection * Instrumentation * Industrial Controls
Order Information
Part LH1521BAC LH1521BACTR LH1521BB Remarks Tubes, SMD-8 Tape and Reel, SMD-8 Tubes, DIP-8
Document Number 83820 Rev. 1.2, 01-Dec-05
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LH1521BAC/ BACTR/ BB
Vishay Semiconductors Absolute Maximum Ratings, Tamb = 25 C
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 time can adversely affect reliability.
SSR
Parameter Ambient temperature range Storage temperature range Pin soldering temperature Input/output isolation voltage Pole-to-pole isolation voltage (S1 to S2)1) (dry air, dust free, at sea level) LED continuous forward current LED reverse voltage DC or peak AC load voltage Continuous DC load current one pole operating Continuous DC load current two poles operating Peak load current (single shot) Output power dissipation (continuous)
1
Test condition
Symbol Tamb Tstg
Value - 40 to + 85 - 40 to + 125 260 3750 1600
Unit C C C VRMS V
t = 10 s max t = 1.0 s, IISO = 10 A max
Tsld VISO
IF IR 10 A IL 50 A VR VL IL IL t = 100 ms IP Pdiss
50 5.0 350 150 110 400 600
mA V V mA mA mA mW
Breakdown occurs between the output pins external to the package.
Electrical Characteristics, Tamb = 25 C
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.
Input
Parameter LED forward current, switch turn-on LED forward current, switch turn-off LED forward voltage Test condition IL = 150 mA, t = 10 ms VL = 300 V IF = 10 mA Symbol IFon IFoff VF 1.15 Min 0.2 Typ. 0.9 1.0 1.22 2.0 1.45 Max Unit mA mA V
Output
Parameter ON-resistance OFF-resistance Off-state leakage current Output capacitance Test condition IF = 0 mA, IL = 50 mA IF = 5.0 mA, VL = 100 V IF = 5.0 mA, VL = 350 V IF = 5.0 mA, VL = 50 V Symbol RON ROFF 0.1 Min Typ. 20 1.4 0.08 50 1.0 Max 25 Unit G A pF
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Document Number 83820 Rev. 1.2, 01-Dec-05
LH1521BAC/ BACTR/ BB
Vishay Semiconductors Transfer
Parameter Capacitance (input-output) Turn-on time Turn-off time Test condition VISO = 1.0 V IF = 5.0 mA, IL = 50 mA IF = 5.0 mA, IL = 50 mA Symbol CIO ton toff Min Typ. 3.0 2.0 1.0 3.0 3.0 Max Unit pF ms ms
Typical Characteristics (Tamb = 25 C unless otherwise specified)
150 5.0 mA 120
Load Current (mA)
90 50
30 0 -40
iLH1521BB_00
-20
0
20
40
60
80
Ambient Temperature (C)
Figure 1. Recommended Operating Conditions
Package Dimensions in Inches (mm)
DIP
.380 (9.65) .100 (2.54) 6-.031 (6-.80) Dia. .100 (2.54)
.250 (6.35)
.360 (9.14) .250 (6.35)
.300 (7.62)
.018 (.46) .318 (8.08)
.300 (7.62) .300 (7.62) .130 (3.30) .285 (7.24)Typ.
ISO Method A
i178017
.360 (9.14)Typ.
Document Number 83820 Rev. 1.2, 01-Dec-05
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LH1521BAC/ BACTR/ BB
Vishay Semiconductors Package Dimensions in Inches (mm)
SMD
.380 (9.65) .100 (2.54) .100 (2.54)
.250 (6.35)
.375 (9.53) .075 (1.90) .018 (.46) .318 (8.08) .300 (7.62) .175 (4.45) .130 (3.30)
.327 (8.31)
.059 (1.50)
i178018
ISO Method A
.025 (.64)Typ.
.010 (.25)Typ.
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Document Number 83820 Rev. 1.2, 01-Dec-05
LH1521BAC/ BACTR/ BB
Vishay Semiconductors Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use Vishay Semiconductors products for any unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Document Number 83820 Rev. 1.2, 01-Dec-05
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Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000 Revision: 08-Apr-05
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