BT169D SCR - Thyristor (Original)

BT169D SCR - Thyristor (Original) - Sensitive Gate, 400V, TO-92

The BT169D is an original Silicon Controlled Rectifier (SCR) engineered for electronic switching. This sensitive gate thyristor facilitates direct interfacing with microcontrollers and low-power logic ICs. It is housed in a compact SOT54 (TO-92) plastic package. The device features a repetitive peak off-state voltage of 400V. An effective on-state current of 0.8A is supported. Its planar passivated silicon construction ensures consistent performance. This component is suitable for power control applications requiring precise triggering. Optimal functionality and longevity are inherent to this original part.

Specifications:

• Device Type: Silicon Controlled Rectifier (SCR)
• Package Type: SOT54 (TO-92)
• Repetitive Peak Reverse Voltage (VRRM): 400V
• Repetitive Peak Off-state Voltage (VDRM): 400V
• Average On-state Current (IT(AV)): 0.5A
• Effective On-state Current (IT(RMS)): 0.8A
• Non-Repetitive Peak On-state Current (ITSM): 8A
• Gate Trigger Current (IGT): 200µA
• Gate Trigger Voltage (VGT): 0.8V (typical)
• Holding Current (IH): 5mA (typical)

Key features and benefits:

• Sensitive gate for direct interfacing with low-power circuits
• Repetitive Peak Off-state Voltage (VDRM): 400V
• Effective On-state Current (IT(RMS)): 0.8A
• Low Gate Trigger Current (IGT): 200µA
• Compact SOT54 (TO-92) plastic package
• Planar passivated silicon technology

Applications:

• Microcontroller-based switching and control
• Logic IC controlled power applications
• Small motor control circuits
• Solid-state relay designs
• Phase control and dimming circuits

Frequently Asked Questions:

Q: Is the BT169D SCR compatible with 3.3V logic circuits?
A: Yes, its sensitive gate design and low Gate Trigger Voltage (VGT) of 0.8V (typical) allow direct interfacing with 3.3V and 5V microcontrollers and logic ICs.

Q: What is the lead pitch for the TO-92 package of the BT169D?
A: The standard TO-92 package typically features a 2.54mm (0.1 inch) lead pitch.

Q: Can this BT169D SCR replace other 0.8A, 400V thyristors?
A: Compatibility depends on specific gate trigger current (IGT), holding current (IH), and package requirements. The BT169D has an IGT of 200µA and IH of 5mA.

Package Includes:

*Image shown is a representation only.

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