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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 200MW SOT323
- 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 DDTC124TUA-7 is an NPN pre-biased small signal surface mount transistor manufactured by Diodes Incorporated. It features epitaxial planar die construction and a built-in biasing resistor (R1) with a nominal value of 22 kΩ. The device is housed in a SOT323 package, suitable for automated assembly. Key electrical ratings include a collector-emitter voltage of 50 V, a continuous collector current of 100 mA, and a power dissipation of 200 mW. The component operates within a temperature range of -55°C to +150°C and exhibits a gain-bandwidth product of 250 MHz.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Built-in biasing resistor (R1 only) simplifies circuit design
- Surface mount package optimized for automated assembly processes
- Totally lead-free and fully RoHS compliant
Applications
- Automotive applications requiring specific change control
- General-purpose switching circuits
- Driver circuits for low-power loads
Procurement Notes
Verify the exact ordering suffix against the manufacturer's official documentation before procurement. The base part number DDTC124TUA corresponds to a 22 kΩ input resistor. Confirm availability status, as variants may be marked obsolete or active depending on the specific suffix. Ensure compliance with environmental directives such as RoHS 3 and REACH requirements relevant to your region.
Selection Notes
Select this component when a single NPN pre-biased transistor with a 22 kΩ base resistor is required. The SOT323 package offers a compact footprint suitable for space-constrained designs. Consider the 50 V collector-emitter voltage rating and 100 mA current capability to ensure adequate headroom for the intended application load and supply voltage conditions.
Part Context
This component belongs to the DDTC (R1-ONLY SERIES) UA family from Diodes Incorporated. The series includes various NPN pre-biased transistors differentiated primarily by their internal base resistor values, ranging from 1 kΩ to 200 kΩ. All members share similar electrical characteristics and packaging options, facilitating standardized design approaches across different biasing requirements.
Replacement Considerations
Direct substitutes include other Diodes Incorporated parts from the same series with identical R1 values but different packaging suffixes, such as DDTC124TUA-7-F. Cross-manufacturer replacements must match the NPN polarity, 22 kΩ input resistance, SOT323 package dimensions, and minimum 50 V / 100 mA ratings.
