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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SOT523
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Resistors Included：R1 and R2
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：220 Ohms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：56 @ 10mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 250µA, 5mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：200 MHz
- Power - Max：150 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-523
- Supplier Device Package：SOT-523
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Overview
The DDTC122LE-7-F is an obsolete NPN pre-biased transistor manufactured by Diodes Incorporated. It features a built-in biasing resistor network with R1 at 0.22kΩ and R2 at 10kΩ, housed in a compact SOT523 surface-mount package. The device supports a maximum supply voltage of 50V and a continuous collector current of 100mA, with a power dissipation rating of 150mW. Designed for high reliability, it meets AEC-Q101 standards and operates within a temperature range of -55°C to +150°C.
Feature Summary
- Epitaxial planar die construction ensures stable performance characteristics.
- Integrated biasing resistors simplify circuit design by reducing component count.
- Qualified to AEC-Q101 standards for automotive and high-reliability applications.
Applications
- Automotive electronic systems requiring robust switching capabilities.
- General-purpose digital switching circuits utilizing low-voltage logic levels.
- Interface applications between microcontrollers and peripheral devices.
Procurement Notes
This component is officially discontinued and marked as obsolete by the manufacturer. Verification of availability should focus on surplus distributors or secondary markets rather than direct procurement from Diodes Incorporated. Engineering teams must confirm the authenticity of sources and assess long-term supply risks associated with end-of-life components before integrating them into new designs.
Selection Notes
Designers seeking active alternatives should consider other NPN pre-biased transistors within the DDTC series that maintain similar electrical parameters and packaging dimensions. Verify that replacement parts offer compatible input resistance values and meet the required AEC-Q101 qualification if used in automotive contexts. Ensure the selected substitute supports the necessary operating temperature range and voltage ratings for the specific application environment.
Part Context
The DDTC122LE-7-F belongs to the DDTC (LO-R1) E product family, which includes various NPN pre-biased transistors with different resistor configurations. This specific part number denotes the variant with 0.22kΩ base resistor and 10kΩ emitter resistor. The suffix '-7-F' indicates compliance with AEC-Q101 standards and standard reel packaging specifications.
Replacement Considerations
DDTC142JE-7-F
FAQ
What are the nominal values of the internal biasing resistors?
The DDTC122LE-7-F contains a base resistor (R1) of 0.22kΩ and an emitter resistor (R2) of 10kΩ.
Is this component suitable for automotive applications?
Yes, the device is qualified to AEC-Q101 standards, indicating suitability for high-reliability automotive environments.
What is the maximum power dissipation rating?
The maximum power dissipation (PD) is rated at 150mW at an ambient temperature of +25°C.
