Overview
The X0202MA 2BL2 is a 1.25 A sensitive gate Silicon Controlled Rectifier (SCR) produced by STMicroelectronics. This device is designed to serve as an on/off function in applications where the topology does not provide high current for gate triggering. It is optimized for reduced power losses and high reliability in harsh environments, thanks to its improved forward voltage drop and inrush current capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| On-state rms current (IT(RMS)) | 1.25 A | A |
| Repetitive peak off-state voltage (VDRM/VRRM) | 600 V | V |
| Triggering gate current (IGT) | 50 to 200 µA | µA |
| Average on-state current (IT(AV)) | 0.8 A | A |
| Non repetitive surge peak on-state current (ITSM) | 25 A (tp = 8.3 ms), 22.5 A (tp = 10 ms) | A |
| I²t value for fusing | 2.5 A²s | A²s |
| Critical rate of rise of on-state current (di/dt) | 50 A/µs | A/µs |
| Peak gate current (IGM) | 1.2 A | A |
| Average gate power dissipation (PG(AV)) | 0.2 W | W |
| Storage junction temperature range (Tstg) | -40 to +150 °C | °C |
| Operating junction temperature range (Tj) | -40 to +125 °C | °C |
Key Features
- Optimized for reduced power losses and high reliability in harsh environments.
- Improved forward voltage drop and inrush current capabilities.
- Low gate triggering current (50 to 200 µA).
- High repetitive peak off-state voltage (600 V or 800 V).
- Available in various packages: TO-92, SOT-223, and SMBflat-3L.
Applications
- Ground fault circuit interrupters.
- Overvoltage crowbar protection in power supplies.
- Capacitive ignition circuits.
Q & A
- What is the on-state rms current of the X0202MA 2BL2 SCR?
The on-state rms current (IT(RMS)) is 1.25 A.
- What are the possible repetitive peak off-state voltages for this SCR?
The repetitive peak off-state voltage (VDRM/VRRM) can be either 600 V or 800 V.
- What is the range of the triggering gate current for this device?
The triggering gate current (IGT) ranges from 50 to 200 µA.
- What are the different packages available for the X0202MA 2BL2 SCR?
The device is available in TO-92, SOT-223, and SMBflat-3L packages.
- What is the storage junction temperature range for this SCR?
The storage junction temperature range (Tstg) is -40 to +150 °C.
- What is the operating junction temperature range for this SCR?
The operating junction temperature range (Tj) is -40 to +125 °C.
- What are some typical applications of the X0202MA 2BL2 SCR?
Typical applications include ground fault circuit interrupters, overvoltage crowbar protection in power supplies, and capacitive ignition circuits.
- What is the average on-state current for this device?
The average on-state current (IT(AV)) is 0.8 A.
- What is the non-repetitive surge peak on-state current for this SCR?
The non-repetitive surge peak on-state current (ITSM) is 25 A for tp = 8.3 ms and 22.5 A for tp = 10 ms.
- What is the critical rate of rise of on-state current for this device?
The critical rate of rise of on-state current (di/dt) is 50 A/µs.
