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NPN, 300V, 3.5A, SOT223

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  • BVCEO > 300V
  • IC Max. 3.5A High Continuous Collector Current
  • ICM Max. 5A Peak Pulse Current
  • Very Low Saturation Voltage VCE(sat) < 155mV @ 1A
  • RCE(sat) = 87mΩ for a Low Equivalent On-Resistance
  • hFE Specified Up to 3A for a High Gain Hold-Up
  • Complementary PNP Type: FZT957Q
  • Lead-Free Finish; RoHS Compliant 
  • Halogen and Antimony Free. “Green” Device
  • The FZT857Q is suitable for automotive applications
    requiring specific change control; this part is AEC-Q101
    qualified, PPAP capable, and manufactured in IATF16949
    certified facilities.

Product Specifications

Product Parameters

Category High Voltage Transistor
Compliance(Only Automotive supports PPAP) Automotive
Polarity NPN
VCEO, VCES (V) 300
IC (A) 3.5
ICM (A) 5
PD (W) 3
hFE (Min) 100
hFE (@ IC) (A) 0.01
hFE(Min 2) 15
hFE (@ IC2) (A) 2
VCE(sat) Max (mV) 100
VCE(SAT) (@ IC/IB) (A/mA) 0.5/100
VCE(sat) (Max.2) (mV) 230
VCE(sat) (@ IC/IB2) (A/mA) 2/200
fT (MHz) 80
RCE(sat) (mΩ) -

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Technical Documents


Recommended Soldering Techniques



Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2269 2017-04-21 2017-04-21 Qualification of Alternative Wafer Sources for Select Automotive Products Due to Closure of Diodes FabTech (KFAB) Facility