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LH1521BACTR_11 Datasheet, PDF (1/4 Pages) Vishay Siliconix – Dual 1 Form B Solid-State Relay
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LH1521BACTR
Vishay Semiconductors
Dual 1 Form B Solid-State Relay
S1
S1'
SMD
i179034_11
S2
S2'
S1
S1' S2
S2'
8
76
5
1
23
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.
FEATURES
• Dual channel (LH1501)
• Isolation test voltage 3750 VRMS
• Typical RON 20 
• 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
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
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 system code H, double protection
CSA: certification no. 093751
DIN EN: 60747-5-2 (VDE 0884)/60747-5-5 (pending),
available with option 1
FIMKO: 25419
ORDERING INFORMATION
L
H
1
5
2
PART NUMBER
PACKAGE
SMD-8, tape and reel
1
B
#
#
ELECTR. PACKAGE
VARIATION CONFIG.
T
R
SMD-8
TAPE AND
REEL
> 0.1 mm
UL, CSA, FIMKO
LH1521BACTR
Rev. 1.6, 03-Aug-11
1
Document Number: 83820
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