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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Resistors Included：R1 Only
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：500 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：220 Ohms
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- Frequency - Transition：200 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 DDTD122TC-7-F is an NPN pre-biased surface-mount transistor manufactured by Diodes Incorporated. It features a single configuration with a maximum collector-emitter voltage (BVCEO) of 40 V and a continuous collector current of 500 mA. The device includes built-in biasing resistors, specifically a typical input resistor of 220 Ohms. Electrical characteristics include a DC current transfer ratio (hFE) ranging from 100 to 600 at IC = 5mA, and a gain-bandwidth product (fT) of 200 MHz. Power dissipation is rated at 250 mW, with an operating temperature range from -55°C to +150°C. The component utilizes SOT-23 packaging.
Feature Summary
- Epitaxial planar die construction for reliable performance
- Integrated biasing resistors simplify circuit design
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free "Green" device
Applications
- General-purpose switching applications
- Driver circuits for low-power loads
- Logic interface buffering
Procurement Notes
Verify the obsolete status of this specific part number before initiating any procurement activities. Confirm availability through authorized distributors or secondary market channels. Ensure that any replacement components meet the same electrical specifications and package dimensions to maintain board compatibility. Check for updated datasheets if sourcing alternative versions within the same series.
Selection Notes
Select this component when a compact NPN solution with integrated base resistance is required. The 220 Ohm input resistor value suits applications needing higher drive currents compared to standard logic transistors. Verify that the 40V breakdown voltage meets the system's supply requirements. Consider the thermal resistance of 500 °C/W when designing PCB layouts to ensure adequate heat dissipation under continuous operation.
Part Context
This component belongs to the DDTD series of NPN pre-biased transistors from Diodes Incorporated. It shares the same epitaxial planar construction and SOT-23 package form factor as other members in the DDTD family. The series offers various resistor combinations to accommodate different logic levels and drive requirements while maintaining consistent electrical performance characteristics across the lineup.
Replacement Considerations
DDTD122LC-7-F
FAQ
What is the difference between DDTD122TC and DDTD122LC?
The primary difference lies in the input voltage ratings. DDTD122TC has a maximum emitter-base voltage (VEBO) of 5V, whereas DDTD122LC supports a wider input voltage range of -5V to +6V.
What is the typical input resistor value for DDTD122TC?
The typical input resistor value for the DDTD122TC is 220 Ohms.
Is the DDTD122TC suitable for automotive applications?
Standard DDTD parts are not automatically qualified for automotive use. For automotive applications requiring AEC-Q100 qualification and IATF 16949 manufacturing, customers must contact Diodes Incorporated directly.
