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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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Overview
The DDTA125TUA-7 is a PNP pre-biased transistor from Diodes Incorporated, housed in an SOT-323 package. It features a built-in 200 kOhm base resistor (R1) and operates with a collector-emitter voltage of -50 V and continuous collector current of -100 mA. The device has a power dissipation rating of 200 mW and a DC current gain (hFE) ranging from 100 to 600 at IC = -1mA, VCE = -5V. It supports an operating temperature range of -55°C to +150°C and includes a transition frequency of 250 MHz.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated single biasing resistor 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 interface level shifting
Procurement Notes
Verify the obsolete status of this specific part number before procurement planning. Confirm availability through authorized distributors or secondary markets if active supply channels are exhausted. Ensure compliance with environmental directives such as RoHS 3 and REACH requirements during sourcing. Validate that the component meets all necessary automotive or industrial standards required by the final application.
Selection Notes
Select this component when a PNP digital transistor with a high-value base resistor is required. The 200 kOhm internal resistance suits applications needing lower base drive currents. Consider the SOT-323 footprint constraints and thermal characteristics. Verify that the -50 V voltage rating aligns with the system's maximum collector-emitter voltage requirements.
Part Context
This component belongs to the DDTA R1-only series, which integrates a single base resistor into a PNP transistor structure. The UA suffix indicates the SOT-323 surface-mount package. This series provides a compact alternative to discrete resistor-transistor combinations, reducing board space and assembly complexity while maintaining standard electrical characteristics for general-purpose use.
Replacement Considerations
Check for equivalent PNP digital transistors with similar 200 kOhm base resistors and SOT-323 packaging. Verify pinout compatibility and electrical parameter alignment, particularly VCEO and hFE ranges. Consult manufacturer datasheets for direct cross-references or functional substitutes within the same product family.
