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What is LH1541AT1?

This electronic component, produced by the manufacturer "Vishay Siliconix", performs the same function as "1 Form A Solid State Relay".


LH1541AT1 Datasheet PDF - Vishay Siliconix

Part Number LH1541AT1
Description 1 Form A Solid State Relay
Manufacturers Vishay Siliconix 
Logo Vishay Siliconix Logo 


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LH1541AT1/AAB1/AAB1TR
1 Form A
Solid State Relay
(Low Capacitance)
FEATURES
• Low Capacitance Switch (5.0 pF)
• l/O Isolation, 5300 VRMS
• Extremely High OFF-resistance (100 T)
• Load Voltage 350 V
• Linear, AC/DC Operation
• Clean Bounce Free Switching
• Low Power Consumption
• High Reliability Monolithic Receptor
AGENCY APPROVALS
• UL – File No. E52744
• CSA – Certification 093751
• BSI/BABT Cert. No. 7980
• VDE 0884 Approval
• FIMKO Approval
APPLICATIONS
• Instrumentation
– Thermocouple Switching
– Analog Multiplexing
• Reed Relay Replacement
• Programmable Logic Controllers
• Data Acquisition
• Test Equipment
DESCRIPTION
These SSRs (LH1541, 1 Form A) are SPST normally
open switches which can replace electromechanical
relays in many applications. The relays provide a low-
capacitance, high-voltage switch contact with high off-
resistance and low switch-offset voltage. These charac-
teristics, combined with high-speed actuation, result in
an SSR which is ideal for small signal and dc instrumen-
tation applications.
The relays are constructed by using a GaAlAs LED for
actuation control and an integrated monolithic die for
the switch output. The die is comprised of a photodiode
array, switch-control circuity, and low-capacitance MOS-
FET switches.
Package Dimensions in Inches (mm)
DIP
Pin One ID.
321
.256 (6.50)
.248 (6.30)
S DC S'
6 54
S
4 56
.343 (8.70)
.335 (8.50)
.039
(1.00)
Min.
4° Typ.
.022 (0.55)
.018 (0.45)
.150 (3.81)
.130 (3.30)
.020 (.051) Min.
.035 (0.90)
.031 (0.80)
.100 (2.54) Typ.
SMD
.343 (8.71)
.335 (8.51)
Pin one I.D.
123
.300 (7.62)
Typ.
18° Typ.
.014 (.35)
.010 (.25)
.347 (8.82)
.300 (7.62)
.150 (3.81)
.110 (2.79)
S'
.256 (6.50)
.248 (6.30)
.039
(0.99)
min.
4°
.050 (1.27) typ.
.052 (1.33)
.048 (1.22)
.150 (3.81)
.130 (3.30) .0098 (.25)
.0040 (.10)
.100 (2.54)
.040 (1.016)
.020 (0.508)
.395 (10.03)
.375 (9.63)
.300 (7.62)
typ.
3° to 7°
18°
.315 (8.00)
min.
.012 (0.31)
.008 (0.20)
Part Identification
Part Number
LH1541AT1
LH1541AAB1
LH1541AAB1TR
Description
6-pin DIP, Tubes
6-pin SMD, Gullwing, Tubes
6-pin SMD, Gullwing, Tape and Reel
Document Number: 83834
Revision 17-August-01
www.vishay.com
3–159

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LH1541AT1 equivalent
Figure 13. Switch Offset Voltage vs. LED Current
0.6
0.5
0.4
0.3
0.2
0.1
0
0 5 10 15 20
LED Forward Current (mA)
Figure 14. Turn-on Time vs. Temperature
70
60
50
IF= 5.0 mA
IL= 50 mA
40
30
20
10
0
10
20
30
40
40
20
0
20 40 60
Ambient Temperature (°C)
25
80
Figure 15. Turn-off Time vs. Temperature
160
140
120
IF= 5.0 mA
IL= 50 mA
100
80
60
40
20
0
20
40
60
80
40
20
0
20 40 60
Ambient Temperature (°C)
80
Figure 16. Turn-on Time vs. LED Current
1.50
1.25
1.00
0.75
0.50
0.25
+85°C
+25°C
40°C
0
0 5 10 15
LED Forward Current (mA)
Figure 17. Turn-off Time vs. LED Current
40
40°C
30 +85°C
+25°C
20
10
0
0 10 20 30 40
LED Forward Current (mA)
20
50
Document Number: 83834
Revision 17-August-01
www.vishay.com
3–163


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