(Transistors : 2N3904)

Transistor FET = BF245

• General purpose NPN Transistor
• High DC Current Gain (hFE), typically 80 when IC=10mA
• Continuous Collector current (IC) is 500mA
• Collector-Emitter voltage (VCE) is 40 V
• Collector-Base voltage (VCB) is 60V
• Emitter Base Breakdown Voltage (VBE) is 6V
• Transition Frequency is 100MHz
• Available in To-92 Package

• BC549
• BC636
• BC639
• BC547
• 2N2369
• 2N3055
• 2N3904
• 2N3906
• 2SC5200
• 2N551

• 2N3904
• 2N2222A

• Type - PNP
• Collector-Emitter Voltage: -40 V
• Collector-Base Voltage: -40 V
• Emitter-Base Voltage: -5 V
• Collector Current: -0.6 A
• Collector Dissipation - 0.625 W
• DC Current Gain (hfe) - 100 to 300
• Transition Frequency - 200 MHz
• Operating and Storage Junction Temperature Range -55 to +150 °C
• Package - TO-92

• 2SA708
• BC527
• BC528
• KN2907
• KN2907A
• KSA708
• KSP2907A
• KTN2907
• KTN2907A
• MPS2907
• MPS2907A
• MPS2907AG
• MPS2907G
• MPS4354
• MPS4355
• MPS750
• MPS750G
• MPS751
• MPS751G
• MPSW51A
• MPSW51AG
• P2N2907A
• P2N2907AG
• PN2905
• PN2905A
• PN2907
• PN2907A
• ZTX550
• ZTX951

• 2SA1518 (SOT-23)
• 2SA1519 (SOT-23)
• 2SA1520 (SOT-23)
• 2SA1521 (SOT-23)
• BC807 (SOT-23)
• BC807W (SOT-323)
• BCX17 (SOT-23)
• KST4403 (SOT-23)
• MMBT4403 (SOT-23)
• MMST4403 (SOT-323)
• PMBT4403 (SOT-23)
• PMST4403 (SOT-323)

• Package Type: TO-92
• Transistor Type: N Channel JFET
• Max Voltage Applied From Drain to Source: 30V
• Max Drain to Gate Voltage Should Be: 30V
• Max Reverse Gate to Source Voltage is: –30V
• Max Continues Drain Current is: 25mA
• Minimum to Maximum Gate to Source Cuttoff Voltage : -0.5 to –0
• Max Power Dissipation is: 300mW
• Max Storage & Operating temperature Should Be: -55 to +150 Centigrade
• Low Noise & High Gain

• BF245B, BF245C
• 2N5457
• 2SK117
• MPF102
• 2N5458
• BF244A
• BF256A
• NTE457
• J113
• 2N3819

Other nearest Possible replacements are

• 2N4416
• NTE312
• 2N5638
• 2N5640
• 2SK162
• 2SK518