DDTB122LU-7

$0.26

Description：TRANS PREBIAS PNP 200MW SOT323
Series：*

SKU:24f64a0ace9c Category: Single, Pre-Biased Bipolar Transistors Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：TRANS PREBIAS PNP 200MW SOT323
Series：*
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)
Resistors Included：-
Transistor Type：-
Current - Collector (Ic) (Max)：-
Voltage - Collector Emitter Breakdown (Max)：-
Resistor - Base (R1)：-
Resistor - Emitter Base (R2)：-
DC Current Gain (hFE) (Min) @ Ic, Vce：-
Vce Saturation (Max) @ Ib, Ic：-
Current - Collector Cutoff (Max)：-
Frequency - Transition：-
Power - Max：-
Grade：-
Qualification：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-

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DDTB122LU-7

Overview

The DDTB122LU-7 is a PNP pre-biased surface mount transistor manufactured by Diodes Incorporated. It integrates built-in biasing resistors within an SOT-323 package, featuring a nominal base resistor (R1) of 0.22 kΩ and an open emitter resistor (R2). The device supports a maximum collector-emitter voltage of -50 V and a continuous collector current of -500 mA. Key electrical characteristics include a DC current gain (hFE) of at least 56 at -50 mA and a transition frequency (fT) of approximately 200 MHz. Power dissipation is rated at 200 mW with a thermal resistance of 625 °C/W.

Feature Summary

Integrates built-in biasing resistors to simplify circuit design
Utilizes epitaxial planar die construction for reliability
Available in lead-free SOT-323 molded plastic packaging

Applications

General-purpose switching applications
Driver circuits for low-power loads
Complementary NPN type integration (DDTD series)

Procurement Notes

Verify the specific ordering suffix '-7' corresponds to the tape and reel packaging configuration containing 3000 units per reel. Confirm that the component meets RoHS compliance standards as indicated in the manufacturer's documentation. Ensure compatibility with the specified SOT-323 footprint during procurement planning.

Selection Notes

Select this component when a PNP pre-biased transistor with a 0.22 kΩ base resistor is required in an SOT-323 package. Consider the complementary NPN variant if an NPN configuration is needed. Evaluate the 200 mW power dissipation limit against the ambient temperature conditions to ensure operation remains within the safe operating area defined by the derating curve.

Part Context

This part belongs to the DDTB (LO-R1) U series of PNP pre-biased transistors from Diodes Incorporated. The series includes variants with different resistor values, such as the DDTB142JU-7 with a 0.47 kΩ base resistor. The 'U' designation typically indicates the SOT-323 package style used in this product line.

Replacement Considerations

Direct substitutes within the same family include the DDTB142JU-7, which features a 0.47 kΩ base resistor. For NPN polarity requirements, the DDTD122LU-7 serves as the complementary counterpart. Verify pinout and resistor values match the original design intent before substitution.

How to buy

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Payment Method

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Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.