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BSP89,115

BSP89,115 Description

The BSP89,115 from Nexperia is a N-channel MOSFET designed for medium-voltage applications, featuring a drain-to-source voltage (Vdss) of 240V and a continuous drain current (Id) of 375mA at 25°C. Packaged in a SOT223 surface-mount form factor, this MOSFET is optimized for low-power switching and high-efficiency performance. While marked as "Not For New Designs," it remains a reliable choice for legacy systems requiring stable operation under moderate power conditions.

BSP89,115 Features

• Low Input Capacitance: 120pF @ 25V (Ciss) ensures fast switching with minimal gate drive losses.
• Low On-Resistance: 5Ω @ 340mA, 10V (Rds(on)) reduces conduction losses in low-current applications.
• Wide Gate-Source Voltage Range: ±20V (Vgs) offers flexibility in drive circuitry design.
• High Temperature Tolerance: 150°C (TJ) enables operation in thermally demanding environments.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards for global use.
• Surface-Mount SOT223 Package: Compact and suitable for automated PCB assembly.

Compared to similar MOSFETs, the BSP89,115 stands out for its balanced trade-off between voltage rating and power dissipation (1.5W), making it ideal for applications where space and efficiency are critical.

BSP89,115 Applications

• Low-Power Switching Circuits: Relay drivers, signal switching, and load control in industrial systems.
• DC-DC Converters: Secondary-side synchronous rectification in isolated power supplies.
• Battery Management Systems: Protection circuits and discharge control in portable electronics.
• Automotive Electronics: Auxiliary power controls and sensor interfaces (non-safety-critical).
• Legacy Electronics Maintenance: Repair or replacement in older designs requiring 240V MOSFETs.

Conclusion of BSP89,115

The BSP89,115 is a cost-effective, compact MOSFET tailored for low-to-medium power applications requiring 240V breakdown voltage and efficient switching performance. While not recommended for new designs, its robust thermal performance, low Rds(on), and compliance with environmental standards make it a dependable choice for sustaining existing systems. Engineers should evaluate alternatives for forward-looking projects but can rely on this MOSFET for legacy or niche applications.