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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SOT323
- Series：DDTA (R1?R2 SERIES) UA
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Resistors Included：R1 and R2
- Transistor Type：PNP - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：47 kOhms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：33 @ 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
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Overview
The DDTA144VUA-7-F is a PNP pre-biased small signal surface mount transistor from Diodes Incorporated, housed in an SOT-323 package. It integrates biasing resistors with nominal values of R1 = 47 kΩ and R2 = 47 kΩ. The device supports a supply voltage up to -50 V and delivers a continuous collector current of -100 mA. Power dissipation is rated at 200 mW, with a thermal resistance of 625 °C/W. Operating temperatures range from -55°C to +150°C, and the gain-bandwidth product reaches 250 MHz.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated unequal biasing resistors (R1≠R2) simplify circuit design
- Lead-free finish compliant with RoHS standards
Applications
- General-purpose switching applications
- Driver circuits for low-power loads
- Logic interface level shifting
Procurement Notes
Verify the specific ordering suffix against official documentation before procurement. Distributor listings may include variations such as 'DDTA144VUA-7' or 'DDTA144VUA-7-F'. Confirm that the component matches the required SOT-323 package and resistor configuration specified in the manufacturer datasheet DS30326.
Selection Notes
Select this component when a compact PNP solution with integrated biasing is required. Ensure the application voltage does not exceed the -50 V limit and that the thermal environment allows for 200 mW dissipation. Verify compatibility with the -100 mA output current requirement for the intended load.
Part Context
This part belongs to the DDTA (R1≠R2 Series) UA family, which includes various PNP pre-biased transistors with different resistor ratios. It serves as a complement to the DDTC NPN series. The 'UA' designation indicates the SOT-323 case style used for space-constrained surface mount designs.
Replacement Considerations
Direct replacements within the same series include DDTA144WUA-7-F, which shares the SOT-323 package but features different internal resistor values. Cross-series substitution requires verifying pinout compatibility and electrical ratings.
