The DTD123YK is an NPN digital transistor with built-in bias resistors, designed for use in switching, inverter, interface, and driver circuits. It is packaged in an SOT-346 (SC-59) case, measuring 3.00 mm in length, 1.80 mm in width, and 1.30 mm in height. The device has a maximum collector current of 500 mA and a collector-emitter voltage rating of 50 V. Power dissipation is limited to 200 mW, with a junction temperature range of -55°C to +150°C. The input resistance is specified as 2.2 kΩ with a resistance ratio of R2/R1 at 4.5, and it includes thin-film resistors for stable, parasitic-free operation. The part is RoHS compliant and features complementary PNP variant DTB123YK.
These are the standard products of "digital transistors" which ROHM invented and marketed first in the world.
These are the standard products of "digital transistors" which ROHM invented and marketed first in the world.
| ROHM Semiconductor GmbH | ROHM Semiconductor USA, LLC | |
|---|---|---|
| Product Category | Transistors | Transistors |
| Product Number | DTD123YK | DTD123YK |
| Product Name | NPN, SOT-346, R1≠R2 Leak Absorption Type Digital Transistor (Bias Resistor Built-in Transistor) | NPN Digital transistor (with built-in resistors) |
| Polarity | NPN | NPN |
