BC847A Datasheet Summary

General Information

• Part Number: BC847A
• Manufacturer: Fairchild Semiconductor Corporation
• Type: NPN Epitaxial Silicon Transistor
• Series: BC846/847/848/849/850

Absolute Maximum Ratings (Ta=25°C unless otherwise noted)

• Collector-Base Voltage (VCBO): 50 V
• Collector-Emitter Voltage (VCEO): 45 V
• Emitter-Base Voltage (VEBO): 6 V
• Collector Current (DC) (IC): 100 mA
• Collector Power Dissipation (PC): 310 mW
• Junction Temperature (TJ): 150 °C
• Storage Temperature (TSTG): -65 to 150 °C

Electrical Characteristics (Ta=25°C unless otherwise noted)

DC Characteristics

• Collector Cut-off Current (ICBO):VCB=30V, IE=0: 15 nA
• DC Current Gain (hFE):VCE=5V, IC=2mA: 110 to 800
• Collector-Emitter Saturation Voltage (VCE(sat)):IC=10mA, IB=0.5mA: 90 to 200 mVIC=100mA, IB=5mA: 250 to 600 mV
• Base-Emitter Saturation Voltage (VBE(sat)):IC=10mA, IB=0.5mA: 700 to 900 mVIC=100mA, IB=5mA: 700 to 900 mV
• Base-Emitter On Voltage (VBE(on)):VCE=5V, IC=2mA: 580 to 660 mVVCE=5V, IC=10mA: 700 to 720 mV

AC and Noise Characteristics

• Current Gain Bandwidth Product (fT):VCE=5V, IC=10mA, f=100MHz: 300 MHz
• Output Capacitance (Cob):VCB=10V, IE=0, f=1MHz: 3.5 to 6 pF
• Input Capacitance (Cib):VEB=0.5V, IC=0, f=1MHz: 9 pF
• Noise Figure (NF):BC846/847/848 (VCE=5V, IC=200µA, f=1KHz, RG=2KΩ): 2 dBBC849/850 (VCE=5V, IC=200µA, RG=2KΩ, f=30~15000Hz): 1.2 to 1.4 dB

Applications

• Switching and Amplifier Applications
• Suitable for automatic insertion in thick and thin-film circuits
• Low Noise: BC849, BC850
• Complement to BC856 ... BC860

Package Information

• Package Type: SOT-23
• Pin Configuration:Pin 1: BasePin 2: EmitterPin 3: Collector

hFE Classification

• Classification A:hFE: 110 to 220
• Classification B:hFE: 200 to 450
• Classification C:hFE: 420 to 800

Marking Code

• BC847A:Classification A: 8BAClassification B: 8BBClassification C: 8BC

Typical Characteristics

• Static Characteristic
• DC Current Gain
• Base-Emitter Saturation Voltage
• Collector-Emitter Saturation Voltage
• Base-Emitter On Voltage
• Collector Output Capacitance
• Current Gain Bandwidth Product

Package Dimensions

• SOT-23Dimensions in Millimeters:Length: 2.90 ±0.10 mmWidth: 1.25 ±0.10 mmHeight: 1.00 ±0.10 mmLead Length: 0.95 ±0.03 mmLead Width: 0.40 ±0.03 mmLead Thickness: 0.20 mm (min)

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• Life Support Devices or Systems:Fairchild’s products are not authorized for use as critical components in life support devices or systems without the express written approval of Fairchild Semiconductor Corporation.