The DTC143ZK is a digital transistor (BRT) manufactured by Rohm Semiconductor. It's an NPN transistor with integrated bias resistors, designed to minimize external components and simplify circuit design. This makes it an excellent choice for applications where board space is at a premium.

Applications

• Digital switching circuits
• Inverter circuits
• Load drivers
• General-purpose amplification and switching
• Mobile devices

Features

• Built-in bias resistors (R1 = 4.7 kΩ, R2 = 10 kΩ)
• Reduces component count and board space
• Simplifies circuit design
• Low input current
• High DC current gain (hFE)
• Small SOT-323 (SC-70) package

Benefits

• Simplified Design: Integrated bias resistors simplify circuit design by eliminating the need for external components, thereby reducing the risk of errors.
• Reduced Component Count: By combining the transistor and bias resistors into a single package, the component count is significantly reduced, leading to smaller and more compact designs.
• Space Saving: The small SOT-323 package allows for high-density mounting, making it suitable for space-constrained applications such as portable devices.
• Improved Reliability: The integrated design enhances circuit reliability by minimizing the number of solder joints and external connections.
• Cost-Effective: Reduces overall system cost by minimizing external components.

Additional Details

The DTC143ZK has a collector-emitter voltage (VCEO) of 50V, a collector current (IC) of 100mA, and a power dissipation of 200mW. The input resistor (R1) is 4.7 kΩ and the resistor between base and emitter (R2) is 10 kΩ. The DC current gain (hFE) is typically around 68. It operates over a temperature range of -55°C to +150°C. The package is SOT-323. This device is RoHS compliant.