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T500128004AQ
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Product Detailed Parameters
- Description：SCR 1.2KV 125A TO209AC
- Series：-
- Mfr：Powerex Inc.
- Package：Bulk
- Voltage - Off State：1.2 kV
- Voltage - Gate Trigger (Vgt) (Max)：3 V
- Current - Gate Trigger (Igt) (Max)：150 mA
- Current - Hold (Ih) (Max)：-
- Current - Non Rep. Surge 50, 60Hz (Itsm)：1800A @ 60Hz
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Chassis, Stud Mount
- Package / Case：TO-209AC, TO-94-4, Stud
- Supplier Device Package：-
- Voltage - On State (Vtm) (Max)：2.2 V
- Current - On State (It (AV)) (Max)：80 A
- Current - On State (It (RMS)) (Max)：125 A
- Current - Off State (Max)：10 mA
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Overview
The T500128004AQ is a standard recovery silicon controlled rectifier (SCR) manufactured by Powerex Inc. It features a TO-209AC (TO-94) chassis mount package with stud mounting for efficient thermal dissipation. The device supports a maximum off-state voltage of 1200 V and an average on-state current of 70 A, with a root-mean-square current rating of 125 A. Gate trigger specifications include a maximum voltage of 3 V and a maximum current of 150 mA. The component operates within a temperature range of -40°C to 125°C and exhibits a maximum on-state voltage of 3.5 V.
Feature Summary
- Standard recovery type construction suitable for general power control applications
- Stud mount chassis installation design for robust mechanical stability
- High surge current capability for handling transient load conditions
Applications
- Industrial motor drive systems
- Power supply circuits
- Resistive heating control
Procurement Notes
Verify the specific suffix designation against the manufacturer datasheet to confirm pinout configuration and exact electrical tolerances. Ensure that the mounting surface preparation and torque specifications align with the official mechanical drawing requirements. Confirm RoHS compliance status through the latest documentation provided by Powerex Inc. prior to finalizing procurement orders.
Selection Notes
Select this component when a high-voltage SCR with moderate current capacity is required in a chassis-mount form factor. The 1200 V rating provides sufficient margin for industrial line voltages. Consider the thermal resistance characteristics inherent to the TO-94 package when designing heat sinking solutions for continuous operation at rated currents.
Part Context
This part belongs to the T50 series of power SCRs from Powerex Inc., designed for medium-power industrial applications. The series utilizes advanced silicon planar technology to ensure reliable switching performance. The TO-94 package variant offers a standardized footprint compatible with common heatsink interfaces used in power electronics assemblies.
Replacement Considerations
Cross-reference with other T50 series variants or equivalent TO-94 packaged SCRs from other manufacturers only if voltage and current ratings match or exceed the original specifications. Verify gate trigger parameters and thermal characteristics before substitution.
