Built in resistor NPN digital transistor ROHM DTC643TKT146 designed for office automation and electronic toys

Product Overview

The DTC643TU/DTC643TK are NPN digital transistors featuring built-in resistors, offering the advantages of regular digital transistors along with a low saturation voltage (typically VCE(sat) = 40mV at IC/IB=50mA/2.5mA), making them ideal for muting circuits. These transistors also support high current levels up to IC=600mA. They are designed for use in ordinary electronic equipment and devices such as audio visual equipment, office-automation equipment, communications devices, electrical appliances, and electronic toys.

Product Attributes

• Brand: ROHM CO.,LTD.
• Type: NPN digital transistor (Built-in resistor type)
• Built-in Resistor Value (R1): 4.7k (Typical)
• Abbreviated Symbol: R03

Technical Specifications

Packaging and Models

External Dimensions (Unit : mm)

UMT3 <SC-70>

Pin Configuration:

• (1) Emitter
• (2) Base
• (3) Collector

Dimensions:

• 00.1 +0.1 0
• 1.250.1
• 2.10.1
• 0.3
• 0.150.05
• 0.1Min.
• (3) 0.90.1
• 0.70.1
• 0.2
• 0.65
• (2) 2.00.2
• 1.30.1
• (1) 0.65
• 0.80.1
• 0.15
• 0.3Min.

SMT3 <SC-59>

Pin Configuration:

• (1) Emitter
• (2) Base
• (3) Collector

Dimensions:

• 1.1
• (2) (1) 2.80.2
• (3) 2.90.2
• 1.90.2
• 0.95
• 0.95
• +0.1 0.06
• 0.4+0.1 0.05
• 1.6+0.2 0.1
• +0.2 0.1