LH1550AAB1_11 Datasheet, PDF (1/6 Pages) Vishay Siliconix – 1 Form A High-Voltage Solid-State Relay

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LH1550AAB1, LH1550AAB1TR, LH1550AT1
Vishay Semiconductors
1 Form A High-Voltage Solid-State Relay
SMD
DIP
S
S'
S
NC
S'
6
5
4
i179041-2
1
2
3
DESCRIPTION
The LH1550 is robust, ideal for telecom and ground fault
applications. It is an SPST normally open switch (1 form A)
that replaces electromechanical relays in many applications.
It is similar to the LH1540, but has a characteristically higher
On resistance. It is 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, it employs current-limiting circuitry
which meets lightning surge testing as per ANSI/TIA-968-B
and other regulatory voltage surge requirements when
overvoltage protection is provided.
FEATURES
• Current limit protection
• Isolation test voltage 5300 V_RMS
• Typical R_ON 28 
• 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
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
APPLICATIONS
• General telecom switching
• Instrumentation
• Industrial controls
AGENCY APPROVALS
UL1577: file no. E52744 system code H, double protection
BSI:
7979/7980
DIN EN: 60747-5-2 (VDE 0884)/60747-5-5 (pending),
available with option 1
FIMKO: 25419
ORDERING INFORMATION
L
H
1
5
5
0
#
#
#
1
T
R
DIP
PART NUMBER
PACKAGE
SMD-6
SMD-6, tape and reel
DIP-6, thru hole
ELECTR.
VARIATION
PACKAGE
CONFIG.
NO DC
CONTACT
AT PIN 5
TAPE AND
REEL
7.62 mm
UL, BSI, FIMKO
LH1550AAB1
LH1550AAB1TR
LH1550AT1
ABSOLUTE MAXIMUM RATINGS (T_amb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
INPUT
LED continuous forward current
LED reverse voltage
OUTPUT
I_F
I_R  10 μA
V_R
DC or peak AC load voltage
Continuous DC load current -
bidirectional operation
I_L  50 μA
V_L
I_L
Peak load current (single shot)
t = 100 ms
I_P
VALUE
50
8
350
100
(1)
SMD
> 0.1 mm
UNIT
mA
V
V
mA
Rev. 1.9, 25-Jul-11
1
Document Number: 83841
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