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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SMT3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- Resistors Included：R1 and R2
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：30 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：56 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：250 MHz
- Power - Max：200 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SMT3
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Overview
The DTC124EKAT246 is an NPN digital transistor from the ROHM DTC124E series, housed in a SOT-346 (SMT3) package. It integrates biasing resistors with R1 and R2 both at 22 kΩ. Key electrical parameters include a supply voltage (VCC) of 50 V, a maximum collector current (IC(MAX)) of 100 mA, and a power dissipation (PD) of 200 mW. The device features a transition frequency (fT) of 250 MHz and a DC current gain (GI) of 56. It operates within a junction temperature range up to 150°C and supports surface mount installation.
Feature Summary
- Built-in biasing resistors (R1 = R2 = 22 kΩ) enable inverter circuit configuration without external input resistors.
- Simplifies circuit design by requiring only on/off condition settings for operation.
- Complementary PNP types available in the DTA124E series.
Applications
- Inverter circuits
- Interface applications
- Driver circuits
Procurement Notes
Verify the specific ordering suffix T246 against official documentation to confirm packaging details such as tape width, reel size, and basic ordering unit quantity. Ensure the component matches the required SOT-346 footprint and that the manufacturer's datasheet revision aligns with the intended production timeline. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.
Selection Notes
Select this component when a single NPN digital transistor with integrated 22 kΩ biasing resistors is required in a compact SOT-346 package. It is suitable for designs needing a 50 V supply voltage and 100 mA collector current capability. Consider the complementary DTA124E series if a PNP configuration is needed for similar interface or driver applications.
Part Context
The DTC124EKAT246 belongs to the DTC124E series of pre-biased transistors manufactured by ROHM Semiconductor. This series offers various package options including SOT-723, SOT-416FL, SOT-416, SOT-323FL, SOT-323, and SOT-346. The DTC124EK variant specifically utilizes the SOT-346 form factor, providing a standardized solution for space-constrained digital switching applications.
Replacement Considerations
Direct substitutes within the same series include other DTC124E variants with different packages, such as DTC124EEB (SOT-416FL) or DTC124EUA (SOT-323), provided the PCB layout accommodates the alternative footprint. For PNP equivalents, consider the DTA124E series.
