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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SOT23-3
- 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)：47 kOhms
- Resistor - Emitter Base (R2)：22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：56 @ 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：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
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Overview
The DDTA144WCA-7-F is a PNP pre-biased transistor from Diodes Incorporated, housed in an SOT-23 package. It integrates biasing resistors with R1 at 47 kΩ and R2 at 22 kΩ. The device supports a maximum collector-emitter voltage of -50 V and a continuous collector current of -100 mA. Power dissipation is rated at 200 mW, with a minimum DC current gain (hFE) of 56. Operating temperature ranges from -55°C to +150°C.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated biasing resistors simplify circuit design
- Surface-mount package optimized for automated assembly
Applications
- General-purpose switching applications
- Driver circuits for logic interfaces
- Pre-biasing stages in analog signal processing
Procurement Notes
Verify the specific ordering suffix '-7-F' against the manufacturer's official documentation to confirm packaging details and compliance status. Ensure that the component meets all relevant environmental directives such as RoHS and halogen-free requirements before finalizing procurement specifications.
Selection Notes
Select this component when a PNP digital transistor with a 47 kΩ input resistor and 22 kΩ base-emitter resistor is required. Confirm that the -50 V voltage rating and -100 mA current capacity align with the target application's electrical demands and thermal constraints.
Part Context
This part belongs to the DDTA (R1≠R2 SERIES) CA family of pre-biased transistors. It serves as the PNP counterpart to the DDTC series NPN types. The 'CA' designation indicates the specific resistor ratio configuration within the broader product line.
Replacement Considerations
Direct replacements include other DDTA144 variants with identical resistor values or complementary DDTC144WCA-7-F if NPN polarity is acceptable. Verify pinout compatibility and electrical ratings before substitution.
FAQ
What are the internal resistor values for the DDTA144WCA?
The internal resistors are R1 = 47 kΩ and R2 = 22 kΩ.
Is the DDTA144WCA-7-F suitable for high-frequency applications?
Yes, it has a gain-bandwidth product (fT) of 250 MHz under specified test conditions.
What is the maximum power dissipation for this device?
The maximum power dissipation is 200 mW at an ambient temperature of +25°C.
