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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.1A SC75
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),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)：22 kOhms
- Resistor - Emitter Base (R2)：22 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：60 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 300µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：-
- Power - Max：200 mW
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- Package / Case：SC-75, SOT-416
- Supplier Device Package：SC-75, SOT-416
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Overview
The SDTC124EET1G is an NPN digital transistor (BRT) manufactured by onsemi, designed to replace discrete transistors and external biasing networks. It integrates a single NPN bipolar junction transistor with two monolithic resistors: a base series resistor (R1) and a base-emitter resistor (R2). The device features a maximum collector-emitter voltage (Vceo) of 50 V and a continuous collector current (Ic) of 100 mA. Internal resistance values are typically 22 kΩ for R1 and 22 kΩ for R2. It is housed in a surface-mount SC-75 (SOT-416) package with three leads and is qualified under the AEC-Q101 automotive standard.
Feature Summary
- Integrates a single NPN BJT with dual internal biasing resistors to simplify circuit topology.
- Eliminates the need for external discrete resistors, reducing printed circuit board area.
- AEC-Q101 qualified for high reliability in automotive electronic environments.
Applications
- Automotive interface driving circuits
- Power management logic interfaces
- Industrial control signal buffering
Procurement Notes
Verify the specific suffix 'ET1G' against official onsemi documentation to confirm packaging configuration and compliance status. Ensure the component matches the required SC-75 footprint and pinout for the target design. Cross-reference the AEC-Q101 certification requirements with system-level automotive standards before finalizing procurement specifications.
Selection Notes
Select this component when a compact NPN switching solution with integrated biasing is required for 50 V applications. Verify that the 100 mA collector current rating meets the load requirements. Confirm that the 22 kΩ internal resistor values provide appropriate input impedance for the driving logic levels used in the specific application circuit.
Part Context
This part belongs to the DTC124 family of digital transistors from onsemi. It serves as a pre-biased alternative to discrete transistor-resistor combinations. The 'SDTC' prefix indicates it is a specific variant within the broader BRT portfolio, optimized for space-constrained designs requiring automotive-grade reliability.
Replacement Considerations
Direct substitutes include the DTC124EET1G from onsemi, which shares identical electrical characteristics and pinout. Other manufacturers offer equivalent SOT-416 NPN BRTs with matching 22kΩ/22kΩ resistor ratios and 50V ratings; verify pin compatibility and thermal performance before substitution.
