Datasheets
2N2644 by:
Texas Instruments
Central Semiconductor Corp
Fairchild Semiconductor Corporation
Freescale Semiconductor
Micro Electronics Corporation
Microchip Technology Inc
Microsemi Corporation
Motorola Semiconductor Products
National Semiconductor Corporation
New Jersey Semiconductor Products Inc
Raytheon Semiconductor
Semiconductor Technology Inc
Semitronics Corp
Telcom Semiconductor Inc
Texas Instruments
TT Electronics Power and Hybrid / Semelab Limited
TT Electronics Resistors
Not Found

30mA, 45V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-78

Part Details for 2N2644 by Texas Instruments

Results Overview of 2N2644 by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Automotive

2N2644 Information

2N2644 by Texas Instruments is a Small Signal Bipolar Transistor.
Small Signal Bipolar Transistors are under the broader part category of Transistors.

A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.

Part Details for 2N2644

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2N2644 Part Data Attributes

2N2644 Texas Instruments
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2N2644 Texas Instruments 30mA, 45V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-78
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Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC
Package Description CYLINDRICAL, O-MBCY-W6
Reach Compliance Code not_compliant
ECCN Code EAR99
Additional Feature LOW NOISE
Case Connection ISOLATED
Collector Current-Max (IC) 0.03 A
Collector-Emitter Voltage-Max 45 V
Configuration SEPARATE, 2 ELEMENTS
DC Current Gain-Min (hFE) 130
JEDEC-95 Code TO-78
JESD-30 Code O-MBCY-W6
JESD-609 Code e0
Number of Elements 2
Number of Terminals 6
Operating Temperature-Max 175 °C
Package Body Material METAL
Package Shape ROUND
Package Style CYLINDRICAL
Polarity/Channel Type NPN
Power Dissipation-Max (Abs) 0.3 W
Qualification Status Not Qualified
Surface Mount NO
Terminal Finish TIN LEAD
Terminal Form WIRE
Terminal Position BOTTOM
Transistor Application AMPLIFIER
Transistor Element Material SILICON
Transition Frequency-Nom (fT) 35 MHz

Alternate Parts for 2N2644

This table gives cross-reference parts and alternative options found for 2N2644. 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 2N2644, 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 Manufacturer Composite Price Description Compare
2N2644 Semiconductor Technology Inc Check for Price Small Signal Bipolar Transistor, 0.03A I(C), NPN, 2N2644 vs 2N2644
Part Number Manufacturer Composite Price Description Compare
2N2644G4 TT Electronics Power and Hybrid / Semelab Limited Check for Price 30mA, 45V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-77, 8 PIN 2N2644 vs 2N2644G4
2N2644 Central Semiconductor Corp Check for Price Small Signal Bipolar Transistor, 0.03A I(C), 45V V(BR)CEO, 2-Element, NPN, Silicon, TO-78 2N2644 vs 2N2644
2N2644G4 TT Electronics Resistors Check for Price Small Signal Bipolar Transistor, 0.03A I(C), 45V V(BR)CEO, 1-Element, NPN, Silicon, TO-77, 8 PIN 2N2644 vs 2N2644G4
2N2644 TT Electronics Power and Hybrid / Semelab Limited Check for Price 30mA, 45V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-77, 8 PIN 2N2644 vs 2N2644