The BS170_D26Z is an N-channel enhancement mode MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) manufactured by Fairchild/ON Semiconductor. It is designed for low-power switching applications and is commonly used in logic-level circuits and small signal amplification. The 'D26Z' likely refers to a specific manufacturing batch or internal code.

Applications

• Low-power switching circuits.
• Logic-level converters.
• Small signal amplifiers.
• Relay drivers.
• LED drivers.

Features

• N-channel enhancement mode.
• Low gate threshold voltage.
• Fast switching speed.
• High input impedance.
• Low on-resistance (RDS(on)).
• Lead-free package.

Benefits

• Easy to drive with logic-level signals.
• Efficient switching performance.
• Minimal gate drive current required.
• Reduced power dissipation.
• Environmentally friendly due to lead-free construction.

Additional Details

The BS170 is typically housed in a TO-92 package, suitable for through-hole mounting. Key electrical characteristics include a drain-source voltage (VDS) rating, gate-source voltage (VGS) rating, and continuous drain current (ID) rating. The low gate threshold voltage allows it to be driven directly by 3.3V or 5V logic circuits. The RDS(on) value is a critical parameter that determines the power dissipation during switching. Care should be taken to ensure that the device operates within its specified voltage and current limits to prevent damage.

The BS170 is a widely used and readily available MOSFET, making it a popular choice for various low-power electronic designs.