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Product Detailed Parameters
- Description：MOSFET N-CH 415V 5MA SOT-223
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel, Depletion Mode
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：415 V
- Current - Continuous Drain (Id) @ 25°C：5mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：0.35V
- Rds On (Max) @ Id, Vgs：14Ohm @ 50mA, 350mV
- Vgs(th) (Max) @ Id：-
- Gate Charge (Qg) (Max) @ Vgs：-
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：300 pF @ 0 V
- FET Feature：-
- Power Dissipation (Max)：2.5W (Ta)
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-223
- Package / Case：TO-261-4, TO-261AA
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Overview
The Littelfuse CPC5603CTR is a single-channel, normally-open solid-state relay featuring an N-channel depletion-mode MOSFET output. It provides electrical isolation between the control input and the load circuit. The device supports a maximum drain-source voltage of 415V and operates within a temperature range of -40°C to +85°C. It utilizes a surface-mount SOT-23 package for compact integration into electronic designs requiring high-voltage switching capabilities.
Feature Summary
- Integrates an N-channel depletion-mode MOSFET for reliable high-voltage switching
- Provides galvanic isolation between input control signals and output loads
- Designed for surface-mount assembly in space-constrained applications
Applications
- Industrial automation control systems
- Telecommunications signal routing
- Test and measurement equipment
Procurement Notes
Verify the specific suffix 'CTR' corresponds to the required tape-and-reel packaging configuration. Confirm that the depletion-mode characteristic aligns with the circuit design requirements, as this differs from standard enhancement-mode MOSFETs. Ensure the 415V rating exceeds the maximum expected load voltage under all operating conditions.
Selection Notes
Select this component when a normally-on behavior is required or when high-voltage isolation is necessary in a small footprint. Compare the on-resistance and gate threshold specifications against the driving circuit capabilities. Ensure the thermal management strategy accommodates the power dissipation limits defined in the official datasheet for the intended ambient temperature range.
Part Context
This part belongs to the IXYS/CPC series of solid-state relays manufactured by Littelfuse. These devices combine optical isolation with semiconductor switching elements to replace mechanical relays. The series offers various voltage ratings and channel configurations to suit different industrial and commercial switching needs.
Replacement Considerations
Consult official Littelfuse documentation for verified cross-reference part numbers. Direct replacements must match the depletion-mode MOSFET type, 415V rating, and SOT-23 package dimensions to ensure functional compatibility without redesigning the PCB layout.
