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MCR08MT1G
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Product Detailed Parameters
- Description：SCR 600V 800MA SOT223
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Off State：600 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：200 µA
- Current - Hold (Ih) (Max)：5 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：8A @ 60Hz
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223
- Voltage - On State (Vtm) (Max)：1.7 V
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：800 mA
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse MCR08MT1G is a surface-mount sensitive gate silicon controlled rectifier (SCR) designed for line-powered consumer applications. It features a glass-passivated PNPN structure housed in an SOT-223 package. The device supports peak repetitive off-state voltages of up to 600V and handles an on-state RMS current of 0.8A at 80°C case temperature. Key electrical characteristics include a maximum gate trigger current of 200μA, a holding current of 5.0mA, and a turn-on time of 1.25μs. It operates within a junction temperature range of -40°C to +110°C.
Feature Summary
- Sensitive gate design enables reliable triggering from low-power digital control circuitry.
- Glass passivation provides enhanced reliability and uniformity against environmental stress.
- Surface mount SOT-223 packaging facilitates automated manufacturing processes.
Applications
- Relay drivers
- Lamp drivers
- Small motor controls
- Gate drivers for larger thyristors
- Sensing and detection circuits
Procurement Notes
Verify the specific suffix 'T1G' confirms the SOT-223 surface mount package and lead-free RoHS compliance. Confirm that the 'M' variant rating aligns with the required blocking voltage for the target application. Ensure the ordering quantity matches the standard tape and reel shipping configuration provided by the manufacturer.
Selection Notes
Select this component when a compact surface mount solution is required for low-current AC switching or DC latching. The sensitive gate characteristic makes it suitable for direct interfacing with microprocessors or logic gates without additional amplification stages. Evaluate thermal derating curves based on the specific PCB copper pad area and ambient operating conditions.
Part Context
This part belongs to the MCR08B/M series of surface mount SCRs. The 'M' designation indicates a higher blocking voltage capability compared to the 'B' variant. Both share identical physical dimensions and pinouts, allowing for potential form-fit replacements if voltage ratings permit.
Replacement Considerations
The MCR08BT1G serves as a lower voltage alternative within the same package family. Other manufacturers producing sensitive gate SCRs in SOT-223 packages may offer functional equivalents, though exact parameter matching requires datasheet comparison.
