Diodes Incorporated

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

Back to Transistor (BJT) Master Table


PNP, 40V, 2A, SOT23

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This bipolar junction transistor (BJT) is designed to meet the stringent requirement of Automotive Applications.


  • BVCEO > -40V
  • IC = -2A High Continuous Collector Current
  • ICM = -3A Peak Pulse Current
  • Low Saturation Voltage -225mV Max @ IC = -1A
  • RCE(sat) = 90mΩ at 0.5A for a Low Equivalent On-Resistance
  • 730mW Power Dissipation
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • The DSS5240TQ is suitable for automotive applications requiring specific change control; this part is AEC-Q101
    qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/


  • Gate Driving MOSFETs and IGBTs
  • Load Switch
  • DC-DC Converters
  • Battery Charging

Product Specifications

Product Parameters

Category Low Saturation Transistor
Compliance(Only Automotive supports PPAP) Automotive
Polarity PNP
IC (A) 2
ICM (A) 3
PD (W) 0.73
hFE (Min) 260
hFE (@ IC) (A) 0.5
hFE(Min 2) 100
hFE (@ IC2) (A) 2
VCE(sat) Max (mV) 100
VCE(SAT) (@ IC/IB) (A/mA) 0.1/1
VCE(sat) (Max.2) (mV) 350
VCE(sat) (@ IC/IB2) (A/mA) 2/200
fT (MHz) 100
RCE(sat) (mΩ) 90

Related Content


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-2324 2018-02-28 2018-05-28 Addition of A Passivation Layer Over The Top Metal of The Die for Selected Automotive BJT Devices