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Product Detailed Parameters
- Description：MOSFET N-CH 55V 540MA SOT23-3
- Series：OptiMOS™
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR),Cut Tape (CT)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：55 V
- Current - Continuous Drain (Id) @ 25°C：540mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：650mOhm @ 270mA, 10V
- Vgs(th) (Max) @ Id：2V @ 2.7µA
- Gate Charge (Qg) (Max) @ Vgs：2.26 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：75 pF @ 25 V
- FET Feature：-
- Power Dissipation (Max)：360mW (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- Supplier Device Package：PG-SOT23
- Package / Case：TO-236-3, SC-59, SOT-23-3
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Overview
The BSS670S2L is an N-channel enhancement-mode MOSFET from the OptiMOS Buck converter series. It features a PG-SOT-23 package with three pins. Key electrical parameters include a drain-source voltage (VDS) of 55 V, a continuous drain current (ID) of 0.54 A at 25°C, and a maximum power dissipation (Ptot) of 0.36 W. The device has a typical on-state resistance (RDS(on)) of 650 mΩ at VGS=10V and ID=270mA. It operates within a temperature range of -55°C to +150°C and is qualified according to AEC-Q101.
Feature Summary
- Logic level gate drive capability for direct interface with standard logic circuits
- Avalanche energy rated for single pulse operation under specified conditions
- Integrated reverse diode with defined forward voltage and recovery characteristics
Applications
- Buck converter circuits
- Low-side switching applications
- General purpose power switching
Procurement Notes
Verify the specific ordering suffix matches the required tape and reel quantity, typically 3000 pieces per reel for the L6327 variant. Confirm that date codes are 0604 or later if avalanche energy ratings are critical for the design. Ensure component authenticity through authorized Infineon channels to guarantee compliance with automotive qualification standards.
Selection Notes
Select this component when a compact SOT-23 footprint is required for low-current switching tasks. The 55V rating suits low-voltage DC-DC conversion systems. Consider the thermal resistance values when designing PCB copper areas for heat dissipation, as performance depends significantly on the cooling area provided on the substrate.
Part Context
This part belongs to the OptiMOS family, specifically designed for buck converter applications. It represents Infineon's technology for efficient power management in small form factors. The device integrates robust gate protection and optimized switching characteristics suitable for modern electronic control units and portable power solutions.
Replacement Considerations
Direct substitutes must match the PG-SOT-23 package, 55V VDS, and similar RDS(on) specifications. Verify pinout compatibility and thermal characteristics before substitution. Cross-reference with other N-channel MOSFETs in the same voltage class ensuring identical gate threshold voltages for logical compatibility.
