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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)：100 kOhms
- Resistor - Emitter Base (R2)：100 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：82 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 250µA, 5mA
- 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 DDTA115EUA-7-F is a PNP pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction housed in a SOT-323 case with molded plastic material. The device integrates built-in biasing resistors where R1 equals R2, nominally 100 kOhms each. Key electrical ratings include a supply voltage of -50 V, a continuous collector current of -100 mA, and a power dissipation of 200 mW. The gain-bandwidth product is specified at 250 MHz, with a DC current gain minimum of -82 under standard test conditions.
Feature Summary
- Integrates dual biasing resistors (R1 = R2) to simplify circuit design and reduce component count.
- Utilizes epitaxial planar die construction for reliable performance in surface mount applications.
- Constructed with lead-free plating and compliant with RoHS directives.
Applications
- General-purpose switching circuits requiring integrated base drive.
- Driver stages for logic interfaces or relay control.
- High-frequency signal processing utilizing the specified gain-bandwidth characteristics.
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm packaging quantity and tape-and-reel specifications. Ensure that the procurement channel sources components directly from authorized distributors to guarantee authenticity and adherence to the stated moisture sensitivity level per J-STD-020C standards.
Selection Notes
Select this component when a PNP configuration with equal internal biasing resistors is required. The 100 kOhm resistor values are suitable for moderate drive currents. Verify that the operating temperature range of -55°C to +150°C aligns with the environmental constraints of the target application board layout.
Part Context
This part belongs to the DDTA1xxEUA series of pre-biased transistors from Diodes Incorporated. The '115' designation specifically indicates the 100 kOhm resistor value within the R1=R2 architecture. Complementary NPN types are available in the DDTC series for differential or push-pull configurations.
Replacement Considerations
Direct substitutes include other DDTA115 variants such as DDTA115GUA-7-F or DDTA115GCA-7-F, provided the package type matches the system requirements. Cross-vendor equivalents must be verified against the specific pinout and electrical parameters defined in the datasheet.
FAQ
What is the nominal resistance value for R1 and R2?
For the DDTA115EUA variant, both R1 and R2 have a nominal resistance of 100 kOhms.
What is the maximum supply voltage rating?
The maximum supply voltage (VCC) between pins 3 and 2 is rated at -50 V.
Is this component lead-free?
Yes, the device features matte tin finish plating over an Alloy 42 leadframe and is lead-free/RoHS compliant.
