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SJ6020LTP
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Product Detailed Parameters
- Description：SCR 600V 20A ITO220AB
- Series：SJ
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：600 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：35 mA
- Current - Hold (Ih) (Max)：75 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：225A, 300A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-220-3 Full Pack, Isolated Tab
- Supplier Device Package：ITO-220AB
- Voltage - On State (Vtm) (Max)：1.6 V
- Current - On State (It (AV)) (Max)：12.8 A
- Current - On State (It (RMS)) (Max)：20 A
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse SJ6020LTP is a high-temperature Silicon Controlled Rectifier (SCR) from the SJxx20xx series, rated for 600 V repetitive peak reverse voltage and 20 A RMS on-state current. It utilizes a TO-220L isolated package with a maximum junction temperature of 150°C. The device features a low gate trigger current of 6 mA at approximately 1.5 V. Surge capability reaches 300 A at 60 Hz half-cycle. Thermal resistance from junction to case is 2.4 °C/W. It operates within a temperature range of -40°C to 150°C.
Feature Summary
- Halogen-free and RoHS compliant construction
- Electrically isolated semiconductor device recognized to UL 1557
- High junction temperature rating up to 150°C
- Low gate trigger sensitivity for efficient control
Applications
- Phase control in heating systems
- Motor speed controls
- Converters and rectifiers
- Inrush current controllers
- Capacitive discharge systems for strobe lights and gas engine ignition
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to confirm the exact package type and gate sensitivity. Confirm compliance requirements such as RoHS and UL recognition directly with the supplier documentation before finalizing procurement specifications.
Selection Notes
Select this component for uni-directional switching applications requiring high thermal stability. Ensure the design limits continuous current to 75% of the rated value to extend operating life. Verify that the gate drive circuit can supply the required 6 mA trigger current under worst-case temperature conditions.
Part Context
This part belongs to the SJxx20xx series of 20 Amp High Junction Temperature SCRs. The 'L' designation indicates a TO-220L isolated mounting tab package, while '1' specifies the 6 mA gate sensitivity level. This series is designed for robust performance in demanding power electronics environments.
Replacement Considerations
Consult the official Littelfuse datasheet for direct pin-compatible alternatives within the same series. Consider SJ6020RTP or SJ6020NTP only if package isolation requirements differ. Verify all electrical parameters match the original application constraints before substitution.
FAQ
What is the maximum surge current rating for the SJ6020LTP?
The peak non-repetitive surge current is 300 A for a single half-cycle at 60 Hz with an initial junction temperature of 25°C.
Is the mounting tab electrically isolated?
Yes, the TO-220L package provides an electrically isolated mounting tab, which is recognized to UL 1557.
What is the critical rate of rise of on-state current (di/dt)?
The critical rate of rise of on-state current is 125 A/µs at 60 Hz and a junction temperature of 150°C.
