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Product Detailed Parameters
- Description：TRANS NPN 30V 1.5A SMT3
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：NPN
- Current - Collector (Ic) (Max)：1.5 A
- Voltage - Collector Emitter Breakdown (Max)：30 V
- Vce Saturation (Max) @ Ib, Ic：350mV @ 50mA, 1A
- Current - Collector Cutoff (Max)：100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce：270 @ 100mA, 2V
- Power - Max：200 mW
- Frequency - Transition：330MHz
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SMT3
- Grade：-
- Qualification：-
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Overview
The 2SD2657KT146 is an NPN single bipolar junction transistor manufactured by Rohm Semiconductor. It features a maximum collector current of 1.5 A and a collector-emitter breakdown voltage of 30 V. The device operates with a transition frequency of 330 MHz and a maximum power dissipation of 200 mW. DC current gain (hFE) is specified at a minimum of 270 under conditions of 100 mA collector current and 2 V collector-emitter voltage. The saturation voltage is limited to 350 mV at 50 mA base current and 1 A collector current. It utilizes the SMT3 surface mount package, compatible with TO-236-3, SC-59, and SOT-23-3 standards.
Feature Summary
- Low collector-emitter saturation voltage design for efficient switching performance
- High DC current gain capability suitable for amplification applications
- Surface mount construction in a compact three-terminal package
Applications
- Low frequency amplifier circuits
- General purpose driver circuits
- Switching applications in consumer electronics
Procurement Notes
Verify the specific suffix KT146 against the manufacturer datasheet to confirm taping specifications and reel configuration. Ensure the ordering part number matches the required packaging format, such as cut tape or full reel, as indicated in official distribution channels. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement integration.
Selection Notes
Select this component when a low saturation voltage NPN transistor is required in a small surface mount footprint. The 30 V rating and 1.5 A current capacity define its operational limits. Compare the 330 MHz transition frequency against circuit speed requirements. Verify that the thermal dissipation characteristics align with the intended PCB layout and ambient operating conditions.
Part Context
This component belongs to the 2SD2657 series of low VCE(sat) transistors produced by Rohm Semiconductor. The series is designed for general-purpose use in portable devices and industrial equipment. The KT146 designation indicates the specific taping and packaging variant within the broader product family.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer cross-reference lists for verified alternatives.
