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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 150MW SOT523
- Series：-
- Mfr：Diodes Incorporated
- Package：Cut Tape (CT)
- 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：Automotive
- Qualification：AEC-Q101
- 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 built-in biasing resistors with nominal values of R1 = 0.22 kΩ and R2 = 10 kΩ. The device operates within a supply voltage range up to 50 V and supports a continuous collector current of 100 mA. Power dissipation is rated at 150 mW, with a thermal resistance (RθJA) of 625 °C/W. The component utilizes an SOT-523 surface-mount package and complies with AEC-Q101 standards for high reliability.
Feature Summary
- Epitaxial planar die construction
- Built-in biasing resistors
- Qualified to AEC-Q101 standards
Applications
- High-reliability automotive electronics
- General-purpose switching applications
- Pre-bias circuit integration
Procurement Notes
This component is officially discontinued and marked as obsolete by the manufacturer. Verification of availability requires direct contact with Diodes Incorporated or authorized distributors. Engineering teams should initiate replacement qualification processes immediately due to the lack of future production support.
Selection Notes
Designers seeking a functional equivalent must evaluate alternative NPN pre-biased transistors that match the required 100 mA collector current and 50 V breakdown voltage. Verify that substitute components offer compatible internal resistor ratios and fit within the same SOT-523 footprint constraints.
Part Context
The DDTC122LE belongs to the DDTC series of NPN pre-biased transistors from Diodes Incorporated. This family provides integrated base and emitter resistors to simplify driver interface requirements. The specific LE variant distinguishes itself through its unique 0.22 kΩ base resistor configuration compared to other series members.
Replacement Considerations
Direct substitutes include the DDTC122TE-7-F and DDTC142JE-7-F. These parts share identical packaging and electrical ratings but differ in internal resistor configurations. Engineers must verify schematic compatibility before implementing these replacements.
FAQ
What are the nominal values for the built-in resistors?
The DDTC122LE includes a base resistor (R1) of 0.22 kΩ and an emitter resistor (R2) of 10 kΩ.
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 absolute maximum power dissipation is 150 mW at an ambient temperature of +25°C.
