ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：TRANS PREBIAS NPN 40V 0.5A 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)：500 mA
- Voltage - Collector Emitter Breakdown (Max)：40 V
- Resistor - Base (R1)：4.7 kOhms
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 50mA, 5V
- Vce Saturation (Max) @ Ib, Ic：300mV @ 2.5mA, 50mA
- Current - Collector Cutoff (Max)：500nA (ICBO)
- Frequency - Transition：200 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
Download product information
Overview
The DTD143TKT146 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-346-3 surface-mount package. It features a typical input resistance of 4.7 kOhms with a resistor ratio of 1. The device supports a maximum collector continuous current of 500 mA and a DC collector/base gain (hfe) minimum of 47 at 50 mA and 5 V. Key electrical limits include a maximum operating frequency of 200 MHz, power dissipation of 200 mW, and an emitter-base voltage of 3 V. The component operates up to +150 C and weighs approximately 8 mg.
Feature Summary
- Integrates bias resistors to simplify circuit design without external components
- Provides high-speed switching capability suitable for interface applications
- Offers low saturation voltage for efficient power management
Applications
- Inverter circuits
- Interface logic drivers
- General-purpose switching applications
Procurement Notes
Verify the specific suffix KT146 against official ROHM documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure compatibility with standard SMT assembly processes for the SOT-346-3 footprint. Cross-reference RoHS compliance status directly with the manufacturer's latest environmental declaration before procurement.
Selection Notes
Select this component when a single NPN digital transistor with 500 mA current capacity and 4.7 kOhm base resistance is required. Compare hfe gain and saturation voltage requirements against alternative packages like SOT-23 if space constraints differ. Verify that the 200 MHz frequency response meets the target application's speed needs.
Part Context
This part belongs to the DTD143EK series of pre-biased NPN transistors from ROHM. It shares functional similarities with other members of the family but differs in packaging and specific electrical tolerances. The DTD143TK variant specifically utilizes the SOT-346-3 form factor, distinguishing it from smaller SOT-23 equivalents.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult ROHM's official cross-reference tools or datasheets for verified alternatives.
