Overview
The BC857BW-QF is a 65 V, 100 mA PNP general-purpose transistor manufactured by Nexperia USA Inc. This transistor is housed in a very small SOT323 (SC-70) surface-mounted device (SMD) plastic package, making it ideal for space-constrained applications. It is part of Nexperia’s extensive portfolio of bipolar transistors, which are widely used in various electronic designs across different industries.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Collector-Base Voltage (VCBO) | - | - | -50 | V | |
| Collector-Emitter Voltage (VCEO) | - | - | -45 | V | |
| Emitter-Base Voltage (VEBO) | - | - | -5 | V | |
| Collector Current (IC) | - | - | 100 | mA | |
| Peak Collector Current (ICM) | - | - | 200 | mA | |
| DC Current Gain (hFE) | VCE = 5 V; IC = 2 mA | 220 | - | 475 | - |
| Total Power Dissipation (Ptot) | Tamb ≤ 25 °C | - | - | 200 | mW |
| Junction Temperature (Tj) | - | - | 150 | °C | |
| Ambient Temperature (Tamb) | - | -65 | - | 150 | °C |
Key Features
- Low current capability (max. 100 mA)
- Low voltage capability (max. 65 V)
- Qualified according to AEC-Q101, making it suitable for automotive applications
- General-purpose switching and amplification
- Compact SOT323 (SC-70) package for space-efficient designs
Applications
The BC857BW-QF transistor is versatile and can be used in a variety of applications, including:
- Automotive systems: Due to its AEC-Q101 qualification, it is recommended for use in automotive applications.
- Industrial electronics: Suitable for general-purpose switching and amplification in industrial settings.
- Consumer electronics: Can be used in mobile, consumer, and wearable devices.
- Power and computing: Applicable in power management and computing systems.
Q & A
- What is the maximum collector current of the BC857BW-QF transistor?
The maximum collector current is 100 mA. - What is the maximum collector-emitter voltage of the BC857BW-QF transistor?
The maximum collector-emitter voltage is 45 V. - What package type is the BC857BW-QF transistor available in?
The transistor is available in the SOT323 (SC-70) package. - Is the BC857BW-QF transistor suitable for automotive applications?
Yes, it is qualified according to AEC-Q101 and recommended for use in automotive applications. - What is the maximum junction temperature for the BC857BW-QF transistor?
The maximum junction temperature is 150 °C. - What is the total power dissipation of the BC857BW-QF transistor at ambient temperatures up to 25 °C?
The total power dissipation is 200 mW. - What is the DC current gain (hFE) of the BC857BW-QF transistor?
The DC current gain (hFE) ranges from 220 to 475 at VCE = 5 V and IC = 2 mA. - Can the BC857BW-QF transistor be used for general-purpose switching and amplification?
Yes, it is suitable for general-purpose switching and amplification. - What are the dimensions of the SOT323 package for the BC857BW-QF transistor?
The dimensions are 2 x 1.25 x 0.95 mm. - Is the BC857BW-QF transistor RoHS compliant?
Yes, the BC857BW-QF transistor is RoHS compliant.
