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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 200MW SOT323
- Series：*
- Mfr：Diodes Incorporated
- Package：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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Overview
The DDTA143TUA-7 is a PNP pre-biased transistor from Diodes Incorporated, housed in an SOT-323 package. It features an integrated base resistor (R1) with a nominal value of 4.7 kΩ and a tolerance of ±30%. The device supports a maximum collector current of -100 mA and a collector-emitter voltage of -50 V. Electrical characteristics include a DC current transfer ratio (hFE) ranging from 100 to 600 at IC = -1 mA and VCE = -5 V, and a gain-bandwidth product (fT) of approximately 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range spanning from -55°C to +150°C.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated single biasing resistor (R1 only) simplifies circuit design
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free "Green" device
Applications
- General-purpose switching applications
- Driver circuits for low-power loads
- Logic level translation interfaces
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm packaging details such as reel size and quantity per reel. Confirm compliance status including RoHS and halogen-free requirements prior to procurement. Ensure the component source is authorized to guarantee authenticity and traceability throughout the supply chain.
Selection Notes
Select this component when a compact PNP solution with a fixed 4.7 kΩ base resistor is required. Verify that the -50 V collector-emitter voltage rating meets the circuit's maximum voltage requirements. Consider the 200 mW power dissipation limit and thermal resistance when designing for high ambient temperatures or dense PCB layouts.
Part Context
This part belongs to the DDTA R1-only series of pre-biased transistors manufactured by Diodes Incorporated. It is designed as a complementary counterpart to the DDTC NPN series. The UA suffix indicates the SOT-323 surface-mount package configuration, providing a small footprint suitable for space-constrained electronic designs.
Replacement Considerations
Direct replacements within the same series include DDTA113TUA-7-F (1 kΩ) and DDTA123TUA-7-F (2.2 kΩ). For different resistor values, consider DDTA144TUA-7-F (47 kΩ). Ensure any substitute maintains the SOT-323 package and PNP polarity while matching the required electrical ratings.
