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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)：47 kOhms
- Resistor - Emitter Base (R2)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：68 @ 5mA, 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
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Overview
The DDTC144EUA-7-F is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features built-in biasing resistors where R1 equals R2, with a nominal resistance of 47 kΩ. The device utilizes epitaxial planar die construction and is housed in a SOT323 package. Key electrical specifications include a supply voltage (VCC) of 50 V, a continuous collector current (IC) of 100 mA, and a power dissipation (PD) of 200 mW. The DC current gain (hFE) has a minimum value of 68 at a collector current of 5 mA. The transition frequency (fT) is 250 MHz. Operating temperature ranges from -55°C to +150°C.
Feature Summary
- Built-in biasing resistors simplify circuit design by eliminating the need for external input resistors.
- Epitaxial planar die construction ensures robust performance.
- Qualified to AEC-Q101 standards for high reliability applications.
Applications
- Inverter circuits
- Switching applications
- Driver circuits
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm compliance with RoHS directives and check for PPAP capability if automotive application requirements are necessary. Ensure proper handling procedures are followed due to surface mount packaging.
Selection Notes
Select this component when an NPN digital transistor with 47 kΩ internal biasing resistors is required. Consider the SOT323 package size constraints and the 50 V maximum supply voltage rating. Verify that the 100 mA collector current meets the load requirements.
Part Context
This part belongs to the DDTC (R1 = R2 SERIES) UA family from Diodes Incorporated. Complementary PNP types are available under the DDTA series. The 'EUA' suffix indicates the specific resistor values and SOT323 package configuration within the product line.
Replacement Considerations
Equivalent parts may include other NPN pre-biased transistors with similar 47 kΩ biasing resistors and SOT323 packaging. Verify pinout compatibility and electrical parameters such as VCEO and IC before substitution.
FAQ
What is the relationship between the internal resistors R1 and R2?
For the DDTC144EUA-7-F, the internal biasing resistors R1 and R2 are equal, with a nominal value of 47 kΩ each.
Is this component suitable for automotive applications?
Yes, the base device is qualified to AEC-Q101 standards. Automotive-specific variants like DDTC144EUAQ-7-F are also available with PPAP capability.
What is the maximum operating junction temperature?
The maximum operating junction temperature (TJ) is +150°C.
