Datasheets
BC640G by:
onsemi
onsemi
Rochester Electronics LLC
Not Found

PNP Bipolar Transistor, TO-92 (TO-226) 5.33mm Body Height, 5000-BLKBX

Part Details for BC640G by onsemi

Results Overview of BC640G by onsemi

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Applications Education and Research Industrial Automation Electronic Manufacturing

BC640G Information

BC640G by onsemi 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 BC640G

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BC640G Part Data Attributes

BC640G onsemi
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BC640G onsemi PNP Bipolar Transistor, TO-92 (TO-226) 5.33mm Body Height, 5000-BLKBX
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Pbfree Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer ONSEMI
Part Package Code TO-92 (TO-226) 5.33mm Body Height
Package Description LEAD FREE, CASE 29-11, TO-226, 3 PIN
Pin Count 3
Manufacturer Package Code 29-11
Reach Compliance Code unknown
ECCN Code EAR99
Samacsys Manufacturer onsemi
Collector Current-Max (IC) 0.5 A
Collector-Emitter Voltage-Max 80 V
Configuration SINGLE
DC Current Gain-Min (hFE) 40
JEDEC-95 Code TO-92
JESD-30 Code O-PBCY-T3
JESD-609 Code e1
Number of Elements 1
Number of Terminals 3
Operating Temperature-Max 150 °C
Package Body Material PLASTIC/EPOXY
Package Shape ROUND
Package Style CYLINDRICAL
Peak Reflow Temperature (Cel) 260
Polarity/Channel Type PNP
Power Dissipation-Max (Abs) 1.5 W
Qualification Status Not Qualified
Surface Mount NO
Terminal Finish Tin/Silver/Copper (Sn/Ag/Cu)
Terminal Form THROUGH-HOLE
Terminal Position BOTTOM
Time@Peak Reflow Temperature-Max (s) 40
Transistor Element Material SILICON
Transition Frequency-Nom (fT) 150 MHz

Alternate Parts for BC640G

This table gives cross-reference parts and alternative options found for BC640G. 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 BC640G, 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
BC640BU Fairchild Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, TO-92, 3 PIN BC640G vs BC640BU
BC640BU Rochester Electronics LLC Check for Price 1000mA, 80V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, TO-92, 3 PIN BC640G vs BC640BU
BC640STZ Zetex / Diodes Inc Check for Price Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, TO-92, 3 PIN BC640G vs BC640STZ
BC640/D75Z Texas Instruments Check for Price 1500mA, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92 BC640G vs BC640/D75Z
BC640 Continental Device India Ltd Check for Price Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, PLASTIC PACKAGE-3 BC640G vs BC640
BC640 Samsung Semiconductor Check for Price Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, TO-92, 3 PIN BC640G vs BC640
BC640STZ Diodes Incorporated Check for Price Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, TO-92, 3 PIN BC640G vs BC640STZ
BC640TA onsemi $0.2010 PNP Bipolar Transistor, TO-92-3 LF, 2000-FNFLD BC640G vs BC640TA
Part Number Manufacturer Composite Price Description Compare
BC640 Zetex / Diodes Inc Check for Price Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, TO-92, 3 PIN BC640G vs BC640
BC640 Fairchild Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, TO-92, 3 PIN BC640G vs BC640
MPS6518D74Z Fairchild Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 0.2A I(C), 40V V(BR)CEO, 1-Element, PNP, Silicon, TO-92 BC640G vs MPS6518D74Z
BC640,126 NXP Semiconductors Check for Price TRANSISTOR 1000 mA, 80 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, BIP General Purpose Small Signal BC640G vs BC640,126
BC640-16-AMMO NXP Semiconductors Check for Price TRANSISTOR 1000 mA, 80 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, BIP General Purpose Small Signal BC640G vs BC640-16-AMMO
PN4250 Micro Electronics Ltd Check for Price Small Signal Bipolar Transistor, 0.05A I(C), 60V V(BR)CEO, 1-Element, PNP, Silicon, TO-92, TO-92A, 3 PIN BC640G vs PN4250
MPS6523-T/R NXP Semiconductors Check for Price TRANSISTOR 100 mA, 25 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, PLASTIC PACKAGE-3, BIP General Purpose Small Signal BC640G vs MPS6523-T/R
MPS6521D26Z National Semiconductor Corporation Check for Price Small Signal Bipolar Transistor, 0.1A I(C), 1-Element, NPN, Silicon, TO-92 BC640G vs MPS6521D26Z
BC640 Siemens Check for Price Small Signal Bipolar Transistor, 1A I(C), 1-Element, PNP, Silicon, TO-92, TO-92, 3 PIN BC640G vs BC640
MPS4250 Rochester Electronics LLC Check for Price 40V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, CASE 29-11, TO-226, 3 PIN BC640G vs MPS4250

BC640G Related Parts

BC640G Frequently Asked Questions (FAQ)

  • A good PCB layout for the BC640G should include a thermal pad connected to a large copper area on the PCB to dissipate heat efficiently. The copper area should be connected to a ground plane to reduce thermal resistance. Additionally, it's recommended to use a 2-ounce copper thickness and to avoid routing high-current traces near the thermal pad.

  • To ensure reliable operation at high temperatures, it's essential to follow the recommended derating curves for the BC640G. The device should be operated within the specified temperature range, and the junction temperature should be kept below the maximum rating. Additionally, a good thermal design, proper cooling, and a reliable mounting process are crucial for high-temperature operation.

  • To prevent damage, the BC640G should be handled and stored in a clean, dry environment, away from direct sunlight and moisture. The device should be stored in its original packaging or in a similar protective package to prevent mechanical stress and electrostatic discharge (ESD). It's also recommended to follow proper ESD handling procedures when handling the device.

  • The gate resistor value depends on the specific application and the required switching frequency. A general guideline is to use a gate resistor value between 10 ohms and 100 ohms. However, it's recommended to consult the application note or the onsemi support team for specific guidance on selecting the optimal gate resistor value for your application.

  • When paralleling multiple BC640G devices, it's essential to ensure that each device has its own gate resistor and that the gate signals are properly synchronized. The devices should be matched for optimal performance, and the PCB layout should be designed to minimize inductance and ensure good thermal performance. Additionally, the total current rating of the paralleled devices should be considered to avoid overcurrent conditions.