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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SOT323
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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)：1 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 DDTA113ZUA-7 is a PNP pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction housed in an SOT-323 case. The device integrates two biasing resistors, R1 and R2, with nominal values of 1 kΩ and 10 kΩ respectively. Key electrical ratings include a maximum supply voltage (VCC) of -50 V, a continuous collector current (IC) of -100 mA, and a power dissipation (Pd) of 200 mW at 25°C ambient temperature. The gain-bandwidth product (fT) is specified at 250 MHz under standard test conditions.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated unequal biasing resistors to simplify circuit design
- Lead-free plating with matte tin finish over alloy 42 leadframe
- RoHS compliant and constructed with green molding compound
Applications
- General-purpose switching applications
- Driver circuits for logic interfaces
- Inverter circuits requiring built-in biasing
Procurement Notes
Verify the specific ordering suffix against official documentation, as it determines packaging configuration such as tape and reel quantities. Confirm that the component meets RoHS standards and utilizes the specified green molding compound if environmental compliance is required for the target assembly process.
Selection Notes
Select this component when a compact PNP solution with integrated base and emitter resistors is needed. Ensure the application voltage does not exceed the -50 V rating and that the thermal environment allows for 200 mW dissipation on an FR4 board. Verify that the 1 kΩ input resistance aligns with the driving source requirements.
Part Context
This part belongs to the DDTA series of PNP pre-biased transistors from Diodes Incorporated. It is designed as a complement to the DDTC NPN series, offering matched characteristics for push-pull or complementary configurations in surface mount designs.
Replacement Considerations
Direct substitutes within the same family include DDTA113ZUA-7-F. Other variants with different resistor ratios such as DDTA123YUA or DDTA143XUA may be considered if the specific 1k/10k ratio is not critical.
FAQ
What are the nominal values of the internal resistors?
The internal resistors have nominal values of R1 = 1 kΩ and R2 = 10 kΩ.
What is the maximum operating junction temperature?
The maximum operating junction temperature (Tj) is +150 °C.
Is the device suitable for high-frequency applications?
Yes, the device has a gain-bandwidth product (fT) of 250 MHz, making it suitable for high-frequency switching.
