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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 20V 0.6A SMT3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 Only
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：600 mA
- Voltage - Collector Emitter Breakdown (Max)：20 V
- Resistor - Base (R1)：2.2 kOhms
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：820 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic：150mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- Frequency - Transition：150 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 DTC623TKT146 is a single NPN digital transistor manufactured by ROHM Semiconductor, designed for surface-mount applications. It integrates an internal base resistor to simplify circuit design and reduce component count. The device operates with a collector-emitter voltage of 20 V and supports a continuous collector current of 600 mA. Key electrical characteristics include a typical input resistance of 2.2 kOhms, a minimum DC current gain (hFE) of 820 at 50 mA and 5 V, and a maximum operating frequency of 150 MHz. Power dissipation is rated at 200 mW, with a maximum operating temperature of +150°C. The component is housed in an SOT-323-3 package.
Feature Summary
- Integrates built-in resistors to eliminate external biasing components
- Optimized for high-speed switching operations up to 150 MHz
- Designed for compact surface-mount assembly in small packages
Applications
- General-purpose signal switching circuits
- Driver stages for logic interfaces
- Battery-powered portable devices requiring low power consumption
Procurement Notes
Verify the specific ordering suffix T146 to confirm the reel packaging configuration and tape-and-reel specifications. Ensure compatibility with standard SMT reflow profiles and check RoHS compliance documentation for environmental regulations. Confirm availability through authorized distributors as lead times may vary based on production schedules.
Selection Notes
Select this component when a single NPN digital switch with a 20V rating and 600mA capacity is required. The 2.2kOhm internal resistor value suits standard logic interface levels. Consider the SOT-323-3 footprint constraints during PCB layout. Compare against similar series like DTC643 if higher input resistance or different voltage ratings are needed.
Part Context
This part belongs to the DTC623TU series of pre-biased transistors from ROHM. It serves as a discrete solution replacing multiple discrete components, offering space savings and improved reliability in dense electronic assemblies. The series is widely used in consumer electronics and industrial control systems where compact switching elements are essential.
Replacement Considerations
Publicly confirmed substitute part numbers for DTC623TKT146 were not found in the provided source material. Verify cross-references with official ROHM documentation or distributor substitution tools before implementation.
