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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 200MW SOT23-3
- 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 DDTA124XCA-7 is a single PNP pre-biased transistor from Diodes Incorporated, housed in an SOT-23 surface-mount package. It integrates internal biasing resistors with values of R1 = 22 kΩ and R2 = 47 kΩ. The device supports a maximum supply voltage (VCC) of -50 V and a continuous collector current (IC) of -100 mA. Electrical characteristics include a minimum DC current gain (hFE) of 68 and a transition frequency (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range spanning from -55°C to +150°C.
Feature Summary
- Integrates built-in biasing resistors to simplify circuit design and reduce component count.
- Utilizes epitaxial planar die construction for reliable performance in surface-mount applications.
- Compliant with RoHS standards and manufactured as a halogen-free green device.
Applications
- General-purpose switching circuits requiring integrated base biasing.
- Driver stages for low-power loads in consumer electronics.
- Logic interface circuits for translating signals between different voltage domains.
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm packaging details. The datasheet lists DDTA124XCA-7-F as the standard orderable part number with a 3,000-unit reel quantity. Confirm that the required marking code and tape width align with automated assembly equipment specifications before finalizing procurement orders.
Selection Notes
Select this component when a PNP configuration with unequal biasing resistors (R1=22kΩ, R2=47kΩ) is required. Ensure the application voltage does not exceed the -50 V limit and that thermal management accommodates the 200 mW power dissipation rating. Verify compatibility with the SOT-23 footprint during PCB layout.
Part Context
This component belongs to the DDTA (R1≠R2 Series) CA family of pre-biased transistors. It serves as the PNP counterpart to the DDTC NPN series. The 'CA' designation indicates compliance with specific environmental standards. The device is designed for automated assembly processes using standard SMT techniques.
Replacement Considerations
Direct functional substitutes within the same manufacturer family include DDTA124XCA-7-F. Cross-manufacturer replacements must match the PNP polarity, SOT-23 package, and similar resistor ratios. Verify electrical parameters such as hFE and fT to ensure equivalent performance in the target application.
FAQ
What are the specific values of the built-in biasing resistors?
The DDTA124XCA features an input resistor (R1) of 22 kΩ and a second resistor (R2) of 47 kΩ.
Is this device suitable for high-frequency applications?
Yes, it has a transition frequency (fT) of 250 MHz, making it suitable for moderate-speed switching and amplification tasks.
What is the maximum power dissipation rating?
The maximum power dissipation (PD) is 200 mW at an ambient temperature of +25°C.
