Summary of LITTELFUSE INTRODUCES 1 AMP FAULT PROTECTED SOLID STATE RELAY WITH INTEGRATED CURRENT LIMITING AND THERMAL SHUTDOWN
Littelfuse introduced the CPC1561B, a 1 A, 60 V surface-mount solid state relay featuring integrated current limiting and thermal shutdown, providing rugged dual-fault protection, auto-reset recovery, and 3750 VRMS input-to-output isolation for demanding applications like smart homes, building automation, gaming, instrumentation, and battery-powered systems.
Parts used in the CPC1561B Solid State Relay Project:
- CPC1561B Solid State Relay (1 A, 60 V)
- Surface-mount package
- Integrated current limiting circuitry
- Integrated thermal shutdown circuitry (128°C die temperature)
- Input LED driver (for optocoupler-style input)
- PCB with appropriate solder pads and routing for SMD SSR
- Isolation barrier designed for 3750 VRMS input-to-output isolation
- Passive components for input/output interfacing (resistors, capacitors)
Littelfuse, Inc. a global manufacturer of leading technologies in circuit protection, power control, and sensing, announced the CPC1561B Solid State Relay (SSR). The CPC1561B is the highest current (1 A, 60 V) normally-open SSR currently available on the market to integrate both current limiting and thermal shutdown circuits.
The small, surface-mount CPC1561B SSR’s dual fault protection benefit provides a rugged solution for demanding applications that is not possible when using electro-mechanical relays and standard SSRs.
Typical markets and applications for the CPC1561B include:
- Smart homes
- Building automationcpc
- Gaming
- Instrumentation
- Battery powered systems
“The CPC1561B is ideal for markets and applications that cannot be down for long periods of time due to overcurrent, overtemperature and electrical stress,” said Steve Andrezyk, Director of Marketing for Littelfuse-IXYS Integrated Circuits. “The CPC1561B output relay can survive harsh conditions and resume normal operation once the fault is removed, thus reducing product downtime and potentially eliminating service call time as the SSR both protects itself and resets to resume normal operation.”
The CPC1561B offers these key benefits:
- Enhances electronics capabilities to survive fault conditions through active current limiting.
- Adapts to fault conditions using thermal shutdown fault mode protection @ 128˚C die temperature.
- Reduces equipment downtime and high cost of repair by utilizing recovery with auto-reset capabilities, thus avoiding system failures.
- Offers input-output galvanic isolation via 3750VRMS input-to-output isolation.
- What is the maximum current rating of the CPC1561B?
The CPC1561B is rated for 1 A continuous current. - What voltage can the CPC1561B handle?
The CPC1561B is rated for 60 V. - Does the CPC1561B include thermal protection?
Yes, it includes thermal shutdown fault mode protection at 128°C die temperature. - Does the CPC1561B provide current limiting?
Yes, it integrates active current limiting to help survive fault conditions. - Can the CPC1561B recover automatically after a fault?
Yes, it offers recovery with auto-reset capabilities to resume normal operation once the fault is removed. - What isolation rating does the CPC1561B provide?
It offers 3750 VRMS input-to-output galvanic isolation. - Is the CPC1561B suitable for battery-powered systems?
Yes, battery powered systems are listed as a typical application. - What markets are targeted for the CPC1561B?
Typical markets include smart homes, building automation, gaming, instrumentation, and battery powered systems.
