BT169D SCR - Thyristor (Original)

BT169D SCR Thyristor - Sensitive Gate, 400V, 0.8A, TO-92 Package

The BT169D is an original Silicon Controlled Rectifier (SCR). It functions as an electronic switch. This sensitive gate thyristor interfaces directly with microcontrollers and low-power logic ICs. It is housed in a compact SOT54 (TO-92) plastic package. The device has a repetitive peak off-state voltage of 400V. An effective on-state current of 0.8A is supported. Its planar passivated silicon construction is used. This component is for power control applications requiring precise triggering.

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 0.8V (typical) Gate Trigger Voltage (VGT) 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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