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MCR08BT1
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Product Detailed Parameters
- Description：THYRISTOR SCR 0.8A 200V SOT223
- Series：-
- Mfr：onsemi
- Package：Cut Tape (CT)
- Voltage - Off State：200 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：-
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223 (TO-261)
- Voltage - On State (Vtm) (Max)：-
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：800 mA
- Current - Off State (Max)：-
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Overview
The MCR08BT1 is a sensitive gate silicon controlled rectifier (SCR) manufactured by onsemi, designed for line-powered consumer applications. It features a peak repetitive off-state voltage of 200 V and an RMS on-state current rating of 0.8 A. The device utilizes a glass-passivated surface for reliability and operates within a junction temperature range of -40°C to +110°C. Packaged in a SOT-223 surface-mount format, it supports automated manufacturing processes. Key electrical characteristics include a maximum gate trigger current of 200 µA and a holding current of 5.0 mA.
Feature Summary
- Sensitive gate design enabling direct interfacing with low-power logic circuits
- Glass passivation ensures uniformity and long-term reliability
- Surface mount package facilitates automated assembly
Applications
- Relay drivers
- Lamp drivers
- Small motor controls
- Gate drivers for larger thyristors
- Sensing and detection circuits
Procurement Notes
Verify the specific suffix against official documentation to confirm packaging details and compliance status. Confirm availability through authorized distributors as supply conditions may vary. Ensure the ordering information matches the required voltage variant and thermal specifications for the target application environment.
Selection Notes
Select the appropriate voltage rating based on the circuit requirements; the MCR08B variant provides 200 V blocking capability. Consider the thermal resistance characteristics when designing the PCB layout to ensure adequate heat dissipation. Verify that the gate trigger current requirements align with the driving logic levels available in the system design.
Part Context
This component belongs to the MCR08 series of sensitive gate SCRs from onsemi. The series includes variants with different blocking voltages, such as the MCR08M which offers 600 V capability. These devices are engineered for robust performance in consumer electronics where space constraints and reliable switching are critical.
Replacement Considerations
Direct replacements should match the SOT-223 package and 200 V blocking voltage. Check datasheets for equivalent gate trigger sensitivity and current ratings. Cross-referencing with other manufacturers' sensitive gate SCR offerings requires careful verification of pinout compatibility and thermal performance metrics.
