Transistor K2485

Meta Description of Transistor K2485

“NEC’s 2SK2485 (K2485) is a robust N-Channel Power MOSFET designed for high-voltage switching in industrial applications. Offering low on-resistance (~2.8 Ω at V_GS = 10 V, I_D = 3 A) and moderate input capacitance (C_iss ≈ 1200 pF), this 900 V, ±6 A transistor combines efficient switching with high avalanche capability—ideal for power conversion, drivers, and industrial switching circuits.”

Detailed Overview of Transistor K2485

1. Manufacturer & Description

The 2SK2485 (also referred to as K2485) is manufactured by NEC, a well-known Japanese electronics company. It is categorized as a switching N-Channel power MOSFET intended for industrial use

2. Key Use Cases of Transistor K2485

• High-Voltage Switching: Designed for applications requiring robust voltage handling, such as power converters, motor drivers, and industrial control circuits.

• Power Conversion: Suitable for DC/DC converters, inverters, and switching power supplies.

• Industrial Equipment: Used in machinery and systems with high voltage and power demands.

• General Switching Applications: Where reliability and efficiency in switching behavior are critical.

3. Core Features & Electrical Characteristics of Transistor K2485

Based on the datasheet details:

• Low On-Resistance (R_DS(on))

  • Approximately 2.8 Ω when V_GS = 10 V and I_D = 3 A

  • This low resistance is beneficial for minimizing conduction losses and heat generation, improving overall efficiency.

• Input Capacitance (C_iss)

  • Typical value is 1200 pF

  • Moderate capacitance supports decent switching speeds, though proper drive circuitry is advised to manage gate charge effectively.

• High-Voltage Capability of Transistor K2485

  • Rated for up to 900 V, with ±6 A current capacity and 100 W power dissipation

  • Ideal for demanding industrial switching environments.

• Avalanche Capability

  • Described in the datasheet as having high avalanche capability, which protects the device during inductive load switching or transient voltage conditions

4. Physical & Package Details of Transistor K2485

The transistor typically comes in a power package such as TO-3P (or similar), as indicated by seller listings noting “marked K2485”
Package dimensions (~millimeter scale) and lead assignments (Gate, Drain, Source, etc.) are provided in the datasheet

5. Equivalents & Substitutions

• It is sometimes referred to simply as K2485, an equivalent labeling of NEC’s 2SK2485

• Comparable MOSFETs include 2SK1502, 2SK1614, and aftermarket equivalents like NTE2377

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