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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 200MW SOT323
- Series：*
- Mfr：Diodes Incorporated
- Package：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 DDTC124XUA-7-F is an NPN pre-biased small signal transistor manufactured by Diodes Incorporated, housed in a SOT323 surface mount package. It integrates built-in biasing resistors with nominal values of R1 = 22 kΩ and R2 = 47 kΩ. The device supports a supply voltage (VCC) of 50 V and a maximum output current (IOUT) of 50 mA. Key electrical characteristics include a DC current gain (Gl) of 68 at VOUT = 5V and IOUT = 5mA, and a gain-bandwidth product (fT) of 250 MHz. Power dissipation is rated at 200 mW, with an operating temperature range 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
- Signal amplification stages
Procurement Notes
Verify the complete part number against official manufacturer documentation before procurement. Confirm that the ordering suffix matches the required packaging specifications, such as reel size and tape width. Ensure compliance with RoHS 3 and REACH directives if applicable to your manufacturing region. Cross-reference the specific date code and marking information to validate authenticity and traceability during the purchasing process.
Selection Notes
Select this component when a compact NPN solution with integrated base and emitter resistors is required. The 22kΩ input resistor and 47kΩ emitter resistor configuration provides a specific resistance ratio suitable for standard logic interfacing. Verify that the 50 mA maximum output current meets the load requirements of the target application circuit.
Part Context
This component belongs to the DDTC (R1≠R2 SERIES) UA family from Diodes Incorporated. It shares the same SOT323 footprint and epitaxial construction as other variants in the series but differs in internal resistor values. The 'UA' suffix denotes the specific SOT323 package type used across this product line.
Replacement Considerations
Direct replacements within the same manufacturer series require matching the NPN polarity, SOT323 package, and specific R1/R2 resistor values. Substituting with different resistor ratios may alter the drive current and switching thresholds. Verify thermal resistance and power dissipation limits match the original design constraints.
