MFG:VishaySemicond Package Cooled:N/A D/C:03+
MFG: VishaySemicond
Package Cooled: N/A
D/C: 03+
Description: The LH1556 dual 1 Form A relays are SPST normally open switches that can replace electromechanical relays in many ap...
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 FCC 68.302 and other regulatory surge requirements when overvoltage protection is provided.
Absolute Maximum Ratings, Tamb = 25
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.
| Parameter | Test condition | Symbol | Value | Unit |
| LED continuous forward current | IF | 50 | mA | |
| LED reverse voltage | IR 10 A | VR | 8.0 | V |
| DC or peak AC load voltage | IL 50 A | VL | 350 | V |
| Continuous DC load current - one pole operating |
IL | 120 | mA | |
| Continuous DC load current - two pole operating |
IL | 250 | mA | |
| Peak load current (single shot) | t = 100 ms | IP | 1) | mA |
| Ambient temperature range | Tamb | -40to+85 | ||
| Storage temperature range | Tstg | -40to+150 | ||
| Pin soldering temperature | t = 100 max | Ts | 260 | |
| Input/output isolation voltage | VISO | 5300 | VRMS | |
| Output power dissipation (continuous) |
Pdiss | 550 | mW |
• Dual Channel (LH1546)
• Current Limit Protection
• Isolation Test Voltage 5300 VRMS
• Typical RON 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
• Lead-free component
• Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC
LH1556AACTR
PDF/DataSheet Download
The LH1556AAC 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, ...
The LH1550AT1 is robust, ideal for telecom and ground fault applications. It is a 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...
The LH1550AAB1TR is robust, ideal for telecom and ground fault applications. It is a 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 resista...
The LH1550AAB1 is robust, ideal for telecom and ground fault applications. It is a 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 resistanc...
The LH1550 is a single pole single throw (SPST), normally open (NO), solid state relay. The relay can control AC or DC loads currents up to 100 mA, with a supply voltage up to 350 V. The LH1550 is packaged in a six pin 0.3 inch dualin line package. This pack...
1 Form A Phototransistor Telecomswitch A Telecom Switch consists of an optically isolated, SPST solid-state relay (SSR) LH1549AB and a bidirectional input optocoupler in a single package. The LH1549AB is ideal for performing switch hook and dial-pulse switc...
Price: 1.15-1.5 USD
CapSenseLITE controller, 16-SOIC, 2.4V to 5.25V, 1mA, CY8C20110-SX2I
Price: 0.01-0.05 USD
SMT inductor, High Q factor, B82498B3150J000
Price: 1-2 USD
class AB, dual Audio power amplifier, ZIP11, ±25 V, 4.5 A, 30W, split supply, short circuit protec...
Price: 2-3 USD
4 Mbit EPROM, CDIP32, -2 to 13.5 V, Low power consumption, 12.75V±0.25V
Price: 28-34 USD
Enhancement-Mode, Lateral MOSFETs, Integrated ESD Protection, RoHS Compliant, 27W, TO-270-4, 880 M...
Price: 0.5-2 USD
512Kx36-bit, 1Mx18-bit, DDRII CIO b2 SRAM, BGA, DLL circuitry, Samsung
Price: 1-10 USD
16-Bit, Single-Chip microcomputer, TQFP144, –0.3 to +4.3 V, general register, High-speed operation
Price: 0.09-0.3 USD
Zener Voltage Regulator, DO-214, - 3.3 V to 200 V, Flat Handling Surface
Price: 0.2-0.27 USD
speaker-phone integrated circuit, hands-free speaker-phone system, Wide operating dynamic range
Price: 11-13 USD
LC2MOS Complete 14-Bit, Sampling ADC, 28-pin DIP, Complete Monolithic 14-Bit ADC
Price: 2-24 USD
Surface Mount, Automotive Transient, Voltage Suppressor, DO-218AB, Low forward voltage drop
Price: 0.15-0.168 USD
cost-effective, system supervisor circuit, SOT-23-3, Low Supply Current, -0.3 to 6.0 V
