Datasheets
MJE521 by:

Power 4A 40V NPN Silicon, TO-225, 500-BLKBX

Part Details for MJE521 by onsemi

Overview of MJE521 by onsemi

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Price & Stock for MJE521

Part # Distributor Description Stock Price Buy
Quest Components Bipolar Junction Transistor, NPN Type, TO-127VAR 4
  • 1 $1.4000
  • 5 $1.1200
$1.1200 / $1.4000 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 180
  • 1 $0.7700
  • 100 $0.5800
  • 1,000 $0.5000
$0.5000 / $0.7700 Buy Now

Part Details for MJE521

MJE521 CAD Models

MJE521 Part Data Attributes:

MJE521 onsemi
Buy Now Datasheet
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MJE521 onsemi Power 4A 40V NPN Silicon, TO-225, 500-BLKBX
Pbfree Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer ONSEMI
Part Package Code TO-225
Package Description PLASTIC, CASE 77-09, TO-225, 3 PIN
Pin Count 3
Manufacturer Package Code 77-09
Reach Compliance Code not_compliant
ECCN Code EAR99
Samacsys Manufacturer onsemi
Collector Current-Max (IC) 4 A
Collector-Emitter Voltage-Max 40 V
Configuration SINGLE
DC Current Gain-Min (hFE) 40
JEDEC-95 Code TO-225AA
JESD-30 Code R-PSFM-T3
JESD-609 Code e0
Number of Elements 1
Number of Terminals 3
Operating Temperature-Max 135 °C
Package Body Material PLASTIC/EPOXY
Package Shape RECTANGULAR
Package Style FLANGE MOUNT
Peak Reflow Temperature (Cel) 235
Polarity/Channel Type NPN
Power Dissipation-Max (Abs) 40 W
Qualification Status Not Qualified
Surface Mount NO
Terminal Finish TIN LEAD
Terminal Form THROUGH-HOLE
Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) 30
Transistor Application SWITCHING
Transistor Element Material SILICON

Alternate Parts for MJE521

This table gives cross-reference parts and alternative options found for MJE521. 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 MJE521, 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
MJE521 TRANSISTOR NPN, Si, POWER TRANSISTOR, TO-220AB, TO-220, 3 PIN, BIP General Purpose Power National Semiconductor Corporation MJE521 vs MJE521
MJE521 Power Bipolar Transistor, 4A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin, Central Semiconductor Corp MJE521 vs MJE521
MJE521 4A, 40V, NPN, Si, POWER TRANSISTOR, TO-126 STMicroelectronics MJE521 vs MJE521
MJE521 4A, 40V, NPN, Si, POWER TRANSISTOR, TO-225AA, PLASTIC, CASE 77-09, TO-225, 3 PIN Rochester Electronics LLC MJE521 vs MJE521
MJE521 4A, 40V, NPN, Si, POWER TRANSISTOR, TO-127VAR, 3 PIN TT Electronics Power and Hybrid / Semelab Limited MJE521 vs MJE521
MJE521 NPN, Si, POWER TRANSISTOR, TO-220AB, TO-220, 3 PIN Texas Instruments MJE521 vs MJE521
MJE521 Power Bipolar Transistor, 4A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, Plastic/Epoxy, 3 Pin, TO-127VAR, 3 PIN Semiconductor Technology Inc MJE521 vs MJE521
MJE521 4A, 40V, NPN, Si, POWER TRANSISTOR, TO-225AA Motorola Mobility LLC MJE521 vs MJE521
MJE521 Power Bipolar Transistor, 4A I(C), 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin, TO-126, 3 PIN Advanced Semiconductor Inc MJE521 vs MJE521
MJE521G Power 4A 40V NPN Silicon, TO-225, 500-BLKBX onsemi MJE521 vs MJE521G
Part Number Description Manufacturer Compare
MJE521 Power Bipolar Transistor, 4A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, Plastic/Epoxy, 3 Pin, TO-127VAR, 3 PIN Semiconductor Technology Inc MJE521 vs MJE521
MJE521 NPN, Si, POWER TRANSISTOR, TO-220AB, TO-220, 3 PIN Texas Instruments MJE521 vs MJE521
MJE521 TRANSISTOR NPN, Si, POWER TRANSISTOR, TO-220AB, TO-220, 3 PIN, BIP General Purpose Power National Semiconductor Corporation MJE521 vs MJE521
MJE521 Power Bipolar Transistor, 4A I(C), 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin, TO-126, 3 PIN Advanced Semiconductor Inc MJE521 vs MJE521
MJE521 Power Bipolar Transistor, 4A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, TO-126, Plastic/Epoxy, 3 Pin, Central Semiconductor Corp MJE521 vs MJE521
MJE521 4A, 40V, NPN, Si, POWER TRANSISTOR, TO-126 STMicroelectronics MJE521 vs MJE521
MJE521 4A, 40V, NPN, Si, POWER TRANSISTOR, TO-127VAR, 3 PIN TT Electronics Power and Hybrid / Semelab Limited MJE521 vs MJE521
MJE521G Power 4A 40V NPN Silicon, TO-225, 500-BLKBX onsemi MJE521 vs MJE521G

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