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SCT855Z
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Product Detailed Parameters
- Description：SCR 800V 55A TO3P
- Series：-
- Mfr：SMC Diode Solutions
- Package：Tube
- Voltage - Off State：800 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：50 mA
- Current - Hold (Ih) (Max)：80 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：520A @ 50Hz
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-3P-3, SC-65-3
- Supplier Device Package：TO-3P Insulated
- Voltage - On State (Vtm) (Max)：1.6 V
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：55 A
- Current - Off State (Max)：10 µA
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Overview
The SCT855Z is a silicon-controlled rectifier (SCR) manufactured by SMC Diode Solutions. It features an 800V repetitive peak off-state voltage and a 55A on-state current rating. The device operates with a maximum on-state voltage of 1.6V and a gate trigger voltage of 1.5V. It utilizes a standard recovery characteristic and is housed in a TO-3P insulated package suitable for through-hole mounting.
Feature Summary
- High voltage blocking capability rated at 800V
- Robust 55A on-state current handling
- Insulated TO-3P package design for thermal management
Applications
- Industrial motor control systems
- Power supply circuits requiring high voltage isolation
- AC power switching applications
Procurement Notes
Verify the specific ordering suffix to ensure the correct package variant, as the base part number may correspond to multiple physical configurations. Confirm that the TO-3P insulated designation matches the required electrical isolation standards for the target application. Cross-reference the manufacturer's latest datasheet to validate the 800V and 55A ratings against current production specifications before finalizing procurement orders.
Selection Notes
Select this component when an SCR with 800V blocking voltage and 55A continuous current capacity is required. The TO-3P insulated package is essential for applications needing direct heatsink mounting with electrical isolation from the circuit ground. Ensure the gate trigger characteristics align with the driving circuit's output capabilities.
Part Context
This SCR belongs to the SCT series of thyristors designed for general-purpose industrial power control. The series offers various voltage and current combinations within the same insulated package family, allowing for standardized mechanical designs across different power levels while maintaining consistent thermal performance profiles.
Replacement Considerations
The SCT655Z is a related model within the same product line offering similar structural characteristics. Verify voltage and current ratings match the specific application requirements when considering substitutes from other manufacturers.
