Integrated-Protection
Solid State Relays

Specialized OptoMOS single-pole, normally open Solid State Relays (1-Form-A) with an integrated current limit feature that can replace electromechanical relays while enhancing the robustness of wireline interface applications. The active current-limit circuitry in these relays also has a thermal management feature that provides excellent power cross immunity for improved survivability in harsh environments. These features greatly improve the robustness of end systems that use these devices, when compared to systems using relays without integrated current limit. These devices may be used in both unidirectional DC applications as well as bidirectional AC applications.

• Telephony Hook Switch
• VoIP Gateways
• I/O Subsystems
• Electronic Switching
• Medical Equipment (Patient Isolation)
• Security
• Aerospace
• Industrial Controls

CPC1540 incorporates an additional safety feature, voltage limiting, that quickly shuts the device down if a high voltage transient, >100V, occurs in the load while current limiting is in effect. This device is ideal for use in noisy environments where such transients can be expected. CPC1560 is available in 8-pin DIP and surface mount packages; CPC1510, CPC1540, CPC1563, and CPC1593 are available in 6-pin DIP and surface mount packages.

• Integrated Active Current Limit Protection
• Thermal Management
• Low Input Control Current
• Low Drive Power Requirements
• 3750Vrms Isolation, Input-to-Output

Current Limited SSRs with Thermal Management

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