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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.1A UMT3
- Series：-
- Mfr：Rohm Semiconductor
- 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)：4.7 kOhms
- Resistor - Emitter Base (R2)：4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 10mA, 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：SC-70, SOT-323
- Supplier Device Package：UMT3
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Overview
The DTC143EUAT106 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323 (UMT3) surface-mount package. It integrates bias resistors with a typical input resistance of 4.7 kOhms and a resistor ratio of 1. The device supports a collector continuous current of 100 mA and features a maximum operating frequency of 250 MHz. Key electrical limits include a collector-emitter voltage of 50 V, emitter-base voltage of 3 V, and power dissipation of 200 mW. It operates up to +150°C and has a minimum DC gain of 20 at 10 mA.
Feature Summary
- Integrates built-in bias resistors to simplify circuit design and reduce component count.
- Provides high-speed switching capabilities suitable for frequencies up to 250 MHz.
- Offers low saturation voltage for efficient signal processing.
Applications
- General-purpose switching circuits
- Driver applications for relays and solenoids
- Logic level translation interfaces
Procurement Notes
Verify the specific suffix AT106 against official datasheets to confirm packaging and tape specifications. Ensure compatibility with existing PCB footprints for the SOT-323 package. Check for AEC-Q101 qualification if automotive reliability is required, as this varies by sub-type within the family.
Selection Notes
Select this component when a compact NPN solution with integrated base resistance is needed. The 4.7 kOhm input resistance suits standard logic drive levels. Compare hFE requirements against load conditions to ensure adequate gain at the target collector current.
Part Context
This part belongs to the DTC143 series of pre-biased transistors. It shares pinout compatibility with variants like DTC143EU3 and DTC143ZU3HZG, though internal resistor values may differ. The AT106 suffix specifically denotes the reel packaging format used for automated assembly.
Replacement Considerations
DTC143EU3T106 and DTC143ZU3HZGT106 are confirmed substitutes with identical pinouts. Verify that the replacement variant's internal resistor ratios match the original circuit design requirements before substitution.
