DDTB122TU-7

$0.06

Description：TRANS PREBIAS PNP 50V SOT323
Series：-

SKU:553c9fab5f13 Category: Single, Pre-Biased Bipolar Transistors Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：TRANS PREBIAS PNP 50V SOT323
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Tape & Reel (TR)
Resistors Included：R1 Only
Transistor Type：PNP - Pre-Biased
Current - Collector (Ic) (Max)：500 mA
Voltage - Collector Emitter Breakdown (Max)：50 V
Resistor - Base (R1)：220 Ohms
Resistor - Emitter Base (R2)：-
DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 5mA, 5V
Vce Saturation (Max) @ Ib, Ic：300mV @ 2.5mA, 50mA
Current - Collector Cutoff (Max)：500nA (ICBO)
Frequency - Transition：200 MHz
Power - Max：200 mW
Grade：-
Qualification：-
Mounting Type：Surface Mount
Package / Case：SC-70, SOT-323
Supplier Device Package：SOT-323

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DDTB122TU-7

Overview

The DDTB122TU-7 is a PNP pre-biased surface mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction and integrates built-in biasing resistors within a SOT-323 molded plastic package. The device supports a maximum collector-emitter voltage of -40 V and a continuous collector current of -500 mA. Internal resistor values are nominally 0.22 kOhms for R1 and open circuit for R2. It operates within a temperature range of -55°C to +150°C and offers a minimum DC current gain (hFE) of 100.

Feature Summary

Integrates built-in biasing resistors to simplify circuit design
Utilizes epitaxial planar die construction for reliability
Available in a compact SOT-323 surface mount package

Applications

General-purpose switching applications
Driver circuits for low-power loads
Logic interface buffering

Procurement Notes

Verify the specific ordering suffix, as it determines the internal resistor configuration and marking code. Confirm RoHS compliance status through official documentation prior to integration. Check for end-of-life notifications or discontinuance alerts from the manufacturer to ensure long-term supply availability for production cycles.

Selection Notes

Select this component when a PNP pre-biased transistor with a 0.22 kOhm input resistor is required. Ensure the application voltage does not exceed the -40 V collector-emitter breakdown rating. Verify that the SOT-323 package dimensions fit the PCB layout constraints and that the thermal dissipation requirements align with the 200 mW power limit at ambient conditions.

Part Context

This part belongs to the DDTB series of PNP pre-biased transistors from Diodes Incorporated. It serves as the complementary counterpart to the NPN DDTD series. The 'TU' designation specifically indicates the inclusion of a single 0.22 kOhm base resistor with an open collector-to-base resistor configuration.