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2STN2540 ST Bipolar (BJT)

The 2STN2540 is an NPN bipolar power transistor from STMicroelectronics, featuring 400V collector-emitter voltage and 2A continuous collector current for medium-power high-voltage switching applications. For selection, verify DC current gain (hFE) characteristics, collector-emitter saturation voltage for conduction losses, transition frequency for switching speed, power dissipation with proper heatsinking, and operating junction temperature range. Features include high voltage capability for demanding circuits and surface-mount package for automated assembly. Ideal for high-voltage switching applications including offline power supplies for AC-DC adapters, auxiliary power supplies in industrial equipment, LED lighting drivers, flyback converters, and any 400V switching application requiring 2A current capability in surface-mount package. In stock at HL Electronics – request a quote for fast delivery.

2STN2540 - ST - main product image
Part No.:2STN2540
Brand:ST
Date Code:
Stock:3,000
SPQ:0
MOQ:1+
Delivery Time:In Stock

Pricing (USD)

QuantityUnit Price
1+ $ 0.21
50+ $ 0.16
1000+ $ 0.15
20000+ $ 0.15
30000+ $ 0.15

Technical Specifications

  • Part No.2STN2540
  • RoHS ROHS3 Compliant
  • Model 2STN2540
  • Category Discrete Semiconductor Products > Transistors > Bipolar (BJT)
  • Packaging Tape & Reel (TR)
  • Part Status Active
  • Power - Max 1 W
  • Manufacturer STMicroelectronics
  • Mounting Type Surface Mount
  • Transistor Type NPN
  • Standard Package 3000
  • Base Product Number 2STN2540
  • Operating Temperature 150°C (TJ)
  • Frequency - Transition 150 MHz
  • Supplier Device Package SOT-223
  • Vce Saturation (Max) @ Ib, Ic 0.2V @ 125mA, 2.5A
  • Current - Collector (Ic) (Max) 5 A
  • Current - Collector Cutoff (Max) 100 nA (ICBO)
  • DC Current Gain (hFE) (Min) @ Ic, Vce 150 @ 2.5A, 2V
  • Voltage - Collector Emitter Breakdown (Max) 40 V
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