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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)：10 kOhms
- Resistor - Emitter Base (R2)：4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：24 @ 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 DDTA114WUA-7-F is a PNP pre-biased small signal surface mount transistor from Diodes Incorporated, housed in an SOT-323 package. It features built-in biasing resistors with nominal values of R1 = 10 kΩ and R2 = 10 kΩ. The device supports a supply voltage (VCC) of -50 V and a continuous collector current (IC) of -100 mA. Power dissipation is rated at 200 mW, with a thermal resistance (RθJA) of 625 °C/W. Operating and storage temperatures range from -55°C to +150°C. The DC current gain (hFE) minimum is 24 at VO = -5V and IO = -10mA.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated unequal biasing resistors simplify circuit design
- Lead-free plating with matte tin finish over alloy 42 leadframe
- RoHS compliant and manufactured with green molding compound
Applications
- General-purpose switching applications
- Driver circuits for logic interfaces
- Inverter circuits requiring compact footprint
Procurement Notes
Verify the component marking code 'P15' on the physical device to confirm it matches the DDTA114WUA-7-F specification sheet. Ensure the ordering suffix '-7-F' corresponds to the tape and reel packaging format containing 3000 units per reel. Confirm RoHS compliance status if manufacturing dates precede the specified date code thresholds.
Selection Notes
Select this component when a PNP configuration with specific 10kΩ/10kΩ resistor ratios is required. Compare against the DDTC114WUA-7-F for NPN alternatives within the same series. Consider the SOT-323 package dimensions and thermal characteristics relative to available board space and heat dissipation requirements.
Part Context
This part belongs to the DDTA (R1≠R2 SERIES) UA family of pre-biased transistors. It serves as the complement to the DDTC series NPN types. The device integrates discrete resistors into a single semiconductor package to reduce external component count and PCB area.
Replacement Considerations
Direct substitutes include other DDTA114 variants with different resistor values, such as DDTA114YUA-7-F or DDTA114EUA-7-F, provided the input impedance requirements match the application design.
FAQ
What are the nominal values for the internal biasing resistors?
The internal biasing resistors have nominal values of R1 = 10 kΩ and R2 = 10 kΩ.
What is the maximum power dissipation rating?
The maximum power dissipation (Pd) is rated at 200 mW.
Is this component suitable for high-frequency applications?
Yes, the gain-bandwidth product (fT) is typically 250 MHz under standard test conditions.
