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Product Detailed Parameters
- Description：N-CHANNEL MOSFET, SOT-523
- Series：-
- Mfr：MCC (Micro Commercial Components)
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：50 V
- Current - Continuous Drain (Id) @ 25°C：250mA
- Drive Voltage (Max Rds On, Min Rds On)：-
- Rds On (Max) @ Id, Vgs：1.6Ohm @ 500mA, 10V
- Vgs(th) (Max) @ Id：1.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：0.7 nC @ 4.5 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：22.8 pF @ 25 V
- FET Feature：-
- Power Dissipation (Max)：250mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-523
- Package / Case：SOT-523
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Overview
The BSS138KT-TP is an N-channel enhancement mode MOSFET manufactured by Micro Commercial Components (MCC). It utilizes silicon technology and is housed in a surface-mount SOT-523 package. The device features a drain-source breakdown voltage of 50 V and supports a continuous drain current of 250 mA. Key electrical characteristics include a maximum on-resistance of 1.6 ohms, a gate-source voltage range of -20 V to +20 V, and a power dissipation rating of 250 mW. The component operates within a temperature range of -55°C to +150°C.
Feature Summary
- N-channel enhancement mode construction for efficient switching applications
- SOT-523 surface-mount packaging optimized for space-constrained designs
- Silicon-based technology ensuring reliable performance across wide temperature ranges
Applications
- Level shifting circuits
- Load switches
- General-purpose switching applications
Procurement Notes
Verify the specific datasheet version from Micro Commercial Components to confirm exact electrical tolerances and thermal characteristics. Ensure the SOT-523 footprint matches your PCB layout requirements. Cross-reference with official MCC documentation to validate pinout configurations and absolute maximum ratings before finalizing procurement specifications.
Selection Notes
Select this component when a compact N-channel MOSFET with moderate current handling capabilities is required. The SOT-523 package offers a smaller form factor compared to standard SOT-23 devices. Consider the 1.6 ohm on-resistance for low-power signal switching or level translation tasks where minimal voltage drop is acceptable.
Part Context
This part belongs to the BSS138 series of small-signal MOSFETs produced by Micro Commercial Components. While sharing similar functional principles with other industry-standard parts, the BSS138KT-TP specifically denotes the MCC variant packaged in the SOT-523 format. It serves as a discrete solution for low-voltage control applications.
Replacement Considerations
Direct substitutes may include other N-channel MOSFETs in SOT-523 packages with comparable Vds and Id ratings. Verify that alternative components meet the same 50 V breakdown and 250 mA current requirements. Check for identical pinouts and thermal performance metrics to ensure compatibility without circuit redesign.
