Datasheets
BUX21 by:
STMicroelectronics

Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-3, Metal, 2 Pin

Part Details for BUX21 by STMicroelectronics

Results Overview of BUX21 by STMicroelectronics

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BUX21 Information

BUX21 by STMicroelectronics is a Power Bipolar Transistor.
Power 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.

US Tariff Estimator: BUX21 by STMicroelectronics

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BUX21
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Part Details for BUX21

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BUX21 Part Data Attributes

BUX21 STMicroelectronics
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BUX21 STMicroelectronics Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-3, Metal, 2 Pin
Part Life Cycle Code Obsolete
ECCN Code EAR99
HTS Code 8541.29.00.95
Case Connection Collector
Collector Current-Max (IC) 40 A
Collector-Emitter Voltage-Max 200 V
Configuration Single
DC Current Gain-Min (hFE) 10
JEDEC-95 Code TO-3
JESD-30 Code O-MBFM-P2
JESD-609 Code e0
Number of Elements 1
Number of Terminals 2
Operating Temperature-Max 200 °C
Package Body Material Metal
Package Shape Round
Package Style Flange Mount
Polarity/Channel Type Npn
Power Dissipation Ambient-Max 350 W
Power Dissipation-Max (Abs) 250 W
Qualification Status Not Qualified
Surface Mount No
Terminal Finish Tin Lead
Terminal Form Pin/Peg
Terminal Position Bottom
Transistor Application Switching
Transistor Element Material Silicon
Transition Frequency-Nom (fT) 8 Mhz
Turn-off Time-Max (toff) 2200 Ns
Turn-on Time-Max (ton) 1200 Ns
VCEsat-Max 1.5 V

Alternate Parts for BUX21

This table gives cross-reference parts and alternative options found for BUX21. 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 BUX21, 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
BUV21.MODR1 TT Electronics Power and Hybrid / Semelab Limited Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUV21.MODR1
BUX21 Crimson Semiconductor Inc Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-3, Metal, 2 Pin BUX21 vs BUX21
BUV21 TT Electronics Resistors Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUV21
Part Number Manufacturer Composite Price Description Compare
BUX21 TT Electronics Resistors Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUX21
BUV21.MOD TT Electronics Power and Hybrid / Semelab Limited Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUV21.MOD
BUV21R1 TT Electronics Resistors Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUV21R1
BUX21.MOD TT Electronics Resistors Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUX21.MOD
BUX21.MODR1 TT Electronics Power and Hybrid / Semelab Limited Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUX21.MODR1
BUX21 TT Electronics Power and Hybrid / Semelab Limited Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUX21
BUX21 Intersil Corporation Check for Price Transistor BUX21 vs BUX21
BUV21.MOD TT Electronics Resistors Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUV21.MOD
BUV21G Rochester Electronics LLC Check for Price 40A, 200V, NPN, Si, POWER TRANSISTOR, TO-204AE, LEAD FREE, CASE 197A-05, TO-3, 2 PIN BUX21 vs BUV21G
BUV21R1 TT Electronics Power and Hybrid / Semelab Limited Check for Price Power Bipolar Transistor, 40A I(C), 200V V(BR)CEO, 1-Element, NPN, Silicon, TO-204AE, Metal, 2 Pin BUX21 vs BUV21R1
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