BC817-40,215

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BC817-40,215

+BOM

TRANS NPN 45V 0.5A TO236AB

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Specifications

Attribute Value
Package / Case Tape & Reel (TR),Cut Tape (CT)
Series BC817
Part Status Active
Transistor Type NPN
Current - Collector(Ic)(Max) 500 mA
Voltage - Collector Emitter Breakdown(Max) 45 V
Vce Saturation(Max) @ Ib Ic 700mV @ 50mA, 500mA
Current - Collector Cutoff(Max) 100nA (ICBO)
DC Current Gain(h FE)(Min) @ Ic Vce 250 @ 100mA, 1V
Power - Max 250 mW
Frequency - Transition 100MHz
Operating Temperature 150°C (TJ)
Mounting Type Surface Mount

Overview

Equivalent

Equivalent products to the BC817-40,215 (NPN transistor, 45V, 500mA, SOT-23) include:
- MMBT4401 (higher current, 600mA)
- 2N3904 (TO-92 package, 200mA)
- BC807-40,215 (PNP complement)
- KST44 (SMD equivalent of 2N3904)
- PMBT4401 (similar specs, SOT-23)
Check datasheets for exact parameter matching.

Features

The BC817-40,215 is an NPN bipolar junction transistor (BJT) with the following key features:
- Type: NPN general-purpose transistor
- Package: SOT-23 (small surface-mount)
- Collector Current (Ic): 500 mA (max)
- Collector-Emitter Voltage (Vceo): 45 V (max)
- DC Current Gain (hFE): 250–600 (at Ic = 2 mA, Vce = 5 V)
- Power Dissipation (Pd): 330 mW (max)
- Transition Frequency (fT): 100 MHz (typical)
- Low Saturation Voltage: Ideal for switching applications
- Applications: Amplification, switching in low-power circuits, drivers, and signal processing
Compact and efficient, it’s widely used in consumer electronics, automotive systems, and industrial controls.

Package

The BC817-40,215 is a NPN transistor in a SOT-23 surface-mount package. It has three pins (emitter, base, collector) and is commonly used for switching and amplification in compact electronic circuits. The package is small, measuring approximately 2.9mm x 1.3mm x 1.0mm, making it suitable for space-constrained applications.

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