LH1556AAC_14 Datasheet, PDF (1/9 Pages) Vishay Siliconix – Dual 1 Form A Solid-State Relay

www.vishay.com
LH1556AAC
Vishay Semiconductors
Dual 1 Form A Solid-State Relay
DIP
SMD
S1
S1'
S2
S2'
S1
S1' S2
S2'
87
65
i179034_2
1
23
4
DESCRIPTION
The LH1556 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 an integrated monolithic die for the
switch output. The die, fabricated in a high-voltage
dielectrically isolated technology is comprised of a
photodiode array, switch control circuitry, and MOSFET
switches. In addition, the LH1556 SSRs employ
current-limiting circuitry, enabling them to pass lightning
surge testing as per ANSI/TIA-968-B and other regulatory
surge requirements when overvoltage protection is
provided.
FEATURES
• Dual channel (LH1546)
• Current limit protection
• Isolation test voltage 5300 V_RMS
• Typical R_ON 28 Ω
• Load voltage 350 V
• Load current 120 mA
• High surge capability
• Clean bounce free switching
• Low power consumption
• SMD lead available on tape and reel
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• General telecom switching
- On/off hook control
- Ring relay
- 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
ORDERING INFORMATION
L
H
1
5
5
PART NUMBER
PACKAGE
SMD-8, tubes
6
A
#
#
ELECTR. PACKAGE
VARIATION CONFIG.
T
R
DIP
TAPE AND
REEL
7.62 mm
UL, CSA
LH1556AAC
SMD
> 0.1 mm
Rev. 1.8, 10-Mar-14
1
Document Number: 83842
For technical questions, contact: [e-mail]
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