ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SOT323
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 and R2
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：4.7 kOhms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：250 MHz
- Power - Max：200 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：SOT-323
Download product information
Overview
The DDTC143XUA-7 is a single NPN pre-biased transistor manufactured by Diodes Incorporated. It integrates an NPN silicon epitaxial planar die with built-in biasing resistors in a surface-mount SOT323 package. The device features a nominal input resistor (R1) of 4.7 kΩ and a nominal emitter-base resistor (R2) of 10 kΩ, resulting in a resistance ratio of approximately 0.47. Key electrical specifications include a maximum supply voltage (VCC) of 50 V, a continuous collector current (IC) of 100 mA, and a power dissipation (PD) of 200 mW at 25°C ambient temperature. The DC current gain (hFE) has a minimum value of 30. The component operates within a temperature range of -55°C to +150°C.
Feature Summary
- Integrates an NPN transistor with built-in biasing resistors for simplified circuit design
- Utilizes epitaxial planar die construction for reliable performance
- Designed for automated assembly using a surface-mount SOT323 package
Applications
- Interface circuits requiring signal buffering or level shifting
- Driver applications for low-power loads
- General-purpose switching logic interfaces
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm packaging details. The datasheet lists DDTC143XUA-7-F as the standard orderable part number with a packing quantity of 3,000 units per reel. Confirm that the required variant matches the exact suffix intended for your manufacturing process.
Selection Notes
Select this component when a compact NPN solution with integrated base biasing is required. Ensure the 4.7 kΩ input resistance aligns with the driving source impedance. Verify that the 50 V collector-emitter voltage rating exceeds the maximum circuit voltage and that the 100 mA output current capability meets load requirements.
Part Context
This component belongs to the DDTC (R1≠R2 Series) UA family from Diodes Incorporated. These devices are designed to replace discrete resistor-transistor networks, reducing board space and assembly costs. The 'UA' designation indicates the SOT323 package format used for high-density surface mount applications.
Replacement Considerations
Direct replacements must match the NPN polarity, SOT323 package, and specific resistor values (4.7 kΩ / 10 kΩ). Check equivalent parts from other manufacturers for identical electrical ratings and pinout configurations.
