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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.1A VMT3
- Series：DTC124T
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 Only
- 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)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 500µA, 5mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- Frequency - Transition：250 MHz
- Power - Max：150 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-723
- Supplier Device Package：VMT3
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Overview
The DTC124TMT2L is a single NPN digital transistor manufactured by Rohm Semiconductor, featuring built-in bias resistors to simplify circuit design. It operates with a maximum collector-emitter voltage of 50 V and a continuous collector current of 50 mA. The device includes an internal base resistor (R1) of 22 kOhms and an emitter-base resistor (R2) of 47 kOhms. Key electrical characteristics include a DC current gain (hFE) of at least 68 at 5 mA and 5 V, a saturation voltage of 300 mV max at 500 µA base and 10 mA collector, and a transition frequency of 250 MHz. Power dissipation is rated at 150 mW in the VMT3 (SOT-723) surface-mount package.
Feature Summary
- Integrates NPN bipolar junction transistor with dual bias resistors for simplified interface driving
- Provides high-speed switching capability suitable for digital logic applications
- Offers low saturation voltage for efficient power consumption during on-state operation
Applications
- Interface circuits between microcontrollers and peripheral devices
- Driver stages for relays, solenoids, or small loads
- Digital inverter and buffer circuits in consumer electronics
Procurement Notes
Verify the exact suffix 'TMT2L' against the manufacturer's official datasheet to confirm packaging quantity and tape-and-reel specifications. Ensure compatibility with SOT-723 footprint requirements. Check for RoHS compliance status as per the latest production batch documentation before finalizing procurement orders.
Selection Notes
Select this component when a compact NPN digital transistor with 22k/47k resistor ratio is required. Compare hFE minimums and saturation voltages against alternative suppliers if strict gain thresholds are necessary. Confirm thermal management capabilities align with the 150 mW power dissipation limit in the target enclosure environment.
Part Context
This part belongs to Rohm's DTC124 series of pre-biased transistors. The TMT2L suffix typically denotes specific taping and reel configurations for automated assembly. It serves as a direct replacement for discrete resistor-transistor networks, reducing board space and assembly steps in standard signal processing applications.
Replacement Considerations
Publicly confirmed substitutes include PDTC124XM from Nexperia USA Inc., which shares similar NPN digital transistor characteristics and functional pinout compatibility.
