ZTX451 Datasheet & Equivalents

NPN TO-92 General Purpose DIODES
VCEO
60V
Ic Max
1A
Pd Max
1W
hFE Gain
50
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Quick Reference

The ZTX451 is a NPN bipolar junction transistor in a TO-92 package, manufactured by DIODES. It supports a breakdown voltage of 60V and continuous collector current of 1A. It is widely used in switching and amplification circuits.

Technical Specifications

ParameterValueDescription
ManufacturerDIODESOriginal Manufacturer
PackageTO-92Physical mounting
Transistor TypeBJTBipolar Junction Transistor
CategorySingleConfiguration
Collector-Emitter Voltage (VCEO)60VMax breakdown voltage
Collector Current (Ic)1AMax current handling
Power Dissipation (Pd)1WMax thermal limit
DC Current Gain (hFE)50Base signal amplification ratio
Transition Frequency (fT)150MHzMax operating frequency
Saturation Voltage (VCEsat)350mVVoltage drop when fully ON
Emitter-Base Voltage (Vebo)5VMax emitter-base breakdown
Collector Cutoff Current100nALeakage current when OFF
Operating Temp-55℃~+200℃Safe junction temperature range

Equivalent Transistors & Alternatives

PartTypePackageVCEOIChFEPdManufacturer / Datasheet
KSD1616A NPN TO-92 60V 1A 135 750mW
BLUE ROCKET 📄 PDF
2SD1616A(RANGE:200-400) NPN TO-92 60V 1A 200 750mW
JSCJ 📄 PDF
2SD1616AG-G-T92-K NPN TO-92 60V 1A 200 750mW
UTC 📄 PDF
2SD1616A NPN TO-92 60V 1A 600 750mW
LGE 📄 PDF
ZTX692B NPN TO-92 70V 1A 400 1.5W
DIODES 📄 PDF
BC639(RANGE:100-250) NPN TO-92 80V 1A 100 830mW
JSCJ 📄 PDF
BC63916-D74Z NPN TO-92 80V 1A 100 830mW
onsemi 📄 PDF
2SD667A-C NPN TO-92 100V 1A 100 900mW
BLUE ROCKET 📄 PDF
ZTX605 NPN TO-92 120V 1A 2000 1W
DIODES 📄 PDF
2SD1857L-Q-T92-B NPN TO-92 120V 2A 120 625mW
UTC 📄 PDF
ZTX455 NPN TO-92 140V 1A 100 1W
DIODES 📄 PDF
ZTX455STZ NPN TO-92 140V 1A 100 1W
DIODES 📄 PDF
NPN Bipolar Transistors High-Power NPN BJTs High-Frequency NPN BJTs TO-92 NPN BJTs