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S8070WTP
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Product Detailed Parameters
- Description：SCR 800V 70A TO218X
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：800 V
- Voltage - Gate Trigger (Vgt) (Max)：2 V
- Current - Gate Trigger (Igt) (Max)：50 mA
- Current - Hold (Ih) (Max)：80 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：800A, 950A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-218X-3
- Supplier Device Package：TO-218X Non-Isolated Mounting Tab
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：45 A
- Current - On State (It (RMS)) (Max)：70 A
- Current - Off State (Max)：20 µA
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Overview
The Littelfuse S8070WTP is a silicon-controlled rectifier (SCR) designed for high-reliability applications. It utilizes a TO-218 flange mount package with three terminals and an anode-connected case. Key electrical parameters include a maximum DC gate trigger current of 50 mA, a maximum DC gate trigger voltage of 2 V, and a holding current of 50 mA. The device features a circuit commutated turn-off time of 35 µs and a critical rate of rise of off-state voltage of 250 V/µs. Maximum leakage current is specified at 2 mA. The component is RoHS compliant and classified under JEDEC-95 code TO-218.
Feature Summary
- High reliability construction suitable for demanding industrial environments
- Flange mount configuration for efficient thermal management
- Anode-connected case design for simplified grounding
Applications
- Industrial power control systems
- High-reliability switching circuits
- AC power regulation modules
Procurement Notes
Verify the specific suffix 'TP' against official Littelfuse documentation to confirm any distinct material or screening variations compared to the standard S8070W. Ensure the TO-218 package dimensions match the target PCB or heatsink interface requirements. Confirm RoHS compliance status directly from the manufacturer's latest datasheet before finalizing procurement specifications.
Selection Notes
Select this component when a single-phase SCR with fast commutation characteristics is required. The 35 µs turn-off time supports higher frequency operation compared to slower thyristors. Verify that the 250 V/µs dv/dt rating meets the transient voltage conditions of the application circuit to prevent false triggering during off-states.
Part Context
The S8070WTP belongs to Littelfuse's portfolio of power semiconductors, specifically within the thyristor category. This series is engineered for robust performance in industrial and commercial power conversion equipment. The component represents a discrete solution for controlling AC power flow in applications requiring reliable switching and thermal stability.
Replacement Considerations
Direct substitutes must match the TO-218 package, 50 mA gate trigger current, and 35 µs turn-off time. Verify pinout compatibility and thermal resistance values. Cross-reference with other Littelfuse SCR series offering similar commutation speeds and flange-mount configurations.
FAQ
What is the maximum DC gate trigger current for the S8070WTP?
The maximum DC gate trigger current is 50 mA.
How is the case connected in the S8070WTP package?
The case is connected to the anode terminal.
What is the circuit commutated turn-off time specification?
The nominal circuit commutated turn-off time is 35 µs.
