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SJ6040RTP
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Product Detailed Parameters
- Description：SCR 600V 40A TO220AB
- Series：SJxx40xx
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：600 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：40 mA
- Current - Hold (Ih) (Max)：60 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：430A, 520A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220AB
- Voltage - On State (Vtm) (Max)：1.7 V
- Current - On State (It (AV)) (Max)：25 A
- Current - On State (It (RMS)) (Max)：40 A
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse SJ6040RTP is a standard high-temperature silicon-controlled rectifier (SCR) from the SJxx40xx series. It features a TO-220AB non-isolated package with a rated repetitive peak off-state voltage of 600 V and an RMS on-state current of 40 A at a case temperature of 115°C. The device has a maximum average on-state current of 25 A at 55°C and supports peak non-repetitive surge currents up to 520 A at 60 Hz. Gate trigger characteristics include a maximum DC gate trigger current of 40 mA and a maximum gate trigger voltage of 1.5 V. It operates within a junction temperature range of -40°C to 150°C.
Feature Summary
- High junction temperature capability for operation up to 150°C
- Low gate current trigger levels for efficient control
- Surge current capability up to 520 A at 60 Hz half cycle
- Halogen-free and RoHS compliant construction
Applications
- AC rectifiers
- Voltage regulators
- Phase control in heating systems
- Motor speed controls
- AC solid-state switches
Procurement Notes
Verify the specific ordering suffix against official Littelfuse documentation to confirm the exact package type, voltage rating, and gate sensitivity. Confirm compliance requirements such as RoHS status and moisture sensitivity level before procurement. Ensure thermal management design aligns with the specified case temperature ratings for the desired current load.
Selection Notes
Select this component based on the required blocking voltage and continuous current handling capabilities. Consider the thermal resistance and mounting configuration when designing heat dissipation. Verify that the gate drive circuit can supply the necessary trigger current and voltage under all operating temperature conditions.
Part Context
This part belongs to the SJxx40xx series of 40 Amp Standard High Temperature SCRs. The series includes variants with different voltage ratings (400V or 600V), gate sensitivities (15mA or 40mA), and packages (TO-220L, TO-220R, TO-263). The 'R' designation indicates a TO-220 non-isolated mounting tab.
Replacement Considerations
Consult the official datasheet for equivalent parts within the SJxx40xx family or other manufacturers offering similar 600V, 40A SCR specifications. Verify pinout compatibility and thermal performance metrics before substitution.
FAQ
What is the maximum allowable case temperature for the SJ6040RTP at full load?
The maximum allowable case temperature is 115°C when conducting the rated 40 A RMS on-state current.
How does the gate trigger current vary with temperature?
The gate trigger current increases as the junction temperature rises. Designers should refer to the normalized DC gate trigger current vs. junction temperature graph in the datasheet for derating information.
Is the mounting tab electrically isolated?
No, the SJ6040RTP uses a TO-220R package where the mounting tab is common with the center lead (anode) and is not electrically isolated.
