Datasheets
BF259 by:

100mA, 300V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-39

Part Details for BF259 by Motorola Mobility LLC

Overview of BF259 by Motorola Mobility LLC

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Applications Industrial Automation Motor control systems

Part Details for BF259

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BF259 Part Data Attributes:

BF259 Motorola Mobility LLC
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BF259 Motorola Mobility LLC 100mA, 300V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-39
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer MOTOROLA INC
Package Description CYLINDRICAL, O-MBCY-W3
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8541.29.00.75
Collector Current-Max (IC) 0.1 A
Collector-Emitter Voltage-Max 300 V
Configuration SINGLE
DC Current Gain-Min (hFE) 25
JEDEC-95 Code TO-39
JESD-30 Code O-MBCY-W3
JESD-609 Code e0
Number of Elements 1
Number of Terminals 3
Operating Temperature-Max 200 °C
Package Body Material METAL
Package Shape ROUND
Package Style CYLINDRICAL
Polarity/Channel Type NPN
Power Dissipation Ambient-Max 5 W
Power Dissipation-Max (Abs) 5 W
Qualification Status Not Qualified
Surface Mount NO
Terminal Finish TIN LEAD
Terminal Form WIRE
Terminal Position BOTTOM
Transistor Element Material SILICON
Transition Frequency-Nom (fT) 110 MHz
VCEsat-Max 1 V

Alternate Parts for BF259

This table gives cross-reference parts and alternative options found for BF259. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BF259, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
BF259G4 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Resistors BF259 vs BF259G4
BF259.MOD 100mA, 300V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Power and Hybrid / Semelab Limited BF259 vs BF259.MOD
BF259 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Resistors BF259 vs BF259
BF259 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, TO-39, 3 PIN Micro Electronics Corporation BF259 vs BF259
BF259.MOD Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Resistors BF259 vs BF259.MOD
BF259 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, Crimson Semiconductor Inc BF259 vs BF259
Part Number Description Manufacturer Compare
BF259 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Resistors BF259 vs BF259
MJ421 100mA, 325V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Power and Hybrid / Semelab Limited BF259 vs MJ421
BF259.MOD Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Resistors BF259 vs BF259.MOD
MM421 Small Signal Bipolar Transistor, 0.5A I(C), 325V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, TO-39, 3 PIN Central Semiconductor Corp BF259 vs MM421
BF259G4 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Resistors BF259 vs BF259G4
BF259.MOD 100mA, 300V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Power and Hybrid / Semelab Limited BF259 vs BF259.MOD
BF259 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, Crimson Semiconductor Inc BF259 vs BF259
BF259 Small Signal Bipolar Transistor, 0.1A I(C), 300V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, TO-39, 3 PIN Micro Electronics Corporation BF259 vs BF259
MJ421 Small Signal Bipolar Transistor, 0.1A I(C), 325V V(BR)CEO, 1-Element, NPN, Silicon, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN TT Electronics Resistors BF259 vs MJ421

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