KSP44BU The ON Semiconductor KSP44BU is an NPN Epitaxial Silicon Transistor designed for high-voltage applications. It features a 400V collector-emitter voltage and a 300mA collector current.
Mfr Part #:

KSP44BU

Available from 5 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor KSP44BU is an NPN Epitaxial Silicon Transistor designed for high-voltage applications. It features a 400V collector-emitter voltage and a 300mA collector current.
Total Stock: 744,768 pcs
$ Price Range: $0.11

KSP44BU Available from 5 distributors

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KSP44BU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Breakdown Voltage (Minimum @ IE=100 μA, IC=0)
Breakdown Voltage (Minimum @ KSP 44, IC = 1 mA, IB = 0)
Breakdown Voltage (Minimum @ KSP 44, IC = 100 μA, IE = 0)
Breakdown Voltage (Minimum @ KSP 45, IC = 1 mA, IB = 0)
Breakdown Voltage (Minimum @ KSP 45, IC = 100 μA, IE = 0)
Current
Current Gain (@ VCE = 10 V, IC = 10 mA)
Current Gain (Minimum @ VCE = 10 V, IC = 100 mA)
Current Gain (Minimum @ VCE = 10 V, IC = 50 mA)
Current Gain (Minimum @ VCE=10 V; IC=1 mA)
DC Current Gain (hFE) (Min) @ Ic, Vce
Halogen Free
Lead Style
Leakage Current (Maximum @ KSP 44, VCB = 400 V, IE = 0)
Leakage Current (Maximum @ KSP 44, VCE = 400 V, IE = 0)
Leakage Current (Maximum @ KSP 45, VCB = 320 V, IE = 0)
Leakage Current (Maximum @ KSP 45, VCE = 320 V, IE = 0)
Leakage Current (Maximum @ VEB = 4 V, IC = 0)
Mounting Type
Operating Temperature
Operating Temperature - Maximum
Operating Voltage (Maximum @ KSP 44)
Operating Voltage (Maximum @ KSP 45)
Power
Power Dissipation (Maximum @ TC=25 °C)
Power Dissipation (Maximum) @ TA=25°C
Saturation Voltage (Maximum @ IC = 1 mA, IB = 0.1 mA)
Storage Temperature
Supplier Device Package
Thermal Resistance - Junction to Case
Thermal Resistance Junction-to-Ambient
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

KSP44BU Description

Short technical summary and product information.

The KSP44BU from ON Semiconductor is a high-voltage NPN Epitaxial Silicon Transistor. It is designed for applications requiring significant voltage handling capabilities, with a maximum collector-emitter voltage (VCEO) of 400V for the KSP44 variant and 350V for the KSP45 variant. The transistor can handle a continuous collector current (IC) of up to 300mA.

 

This device operates within a junction temperature range of -55°C to 150°C and has a maximum power dissipation of 625mW at 25°C ambient temperature, or 1.5W at 25°C case temperature. The thermal resistance from junction to case (RθJC) is 83.3°C/W, and junction to ambient (RθJA) is 200°C/W.

 

The KSP44BU is supplied in a TO-92-3 package, suitable for through-hole mounting. It offers a DC current gain (hFE) typically ranging from 50 to 200 at 10mA and 10V. The saturation voltage (Vce(sat)) is a maximum of 0.40V at 1mA collector current and 0.1mA base current, or 0.75V at 50mA collector current and 5mA base current.

 

This transistor is Pb-free, halogen-free, BFR-free, and RoHS compliant, making it suitable for environmentally conscious designs. Its high voltage rating and NPN configuration make it a versatile component for various switching and amplification circuits.

KSP44BU Quick Information

Product Type: Bipolar Transistor
Canonical Name: KSP44BU NPN Epitaxial Silicon Transistor
Subcategory: NPN

KSP44BU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb−Free

KSP44BU Estimated Pricing

Qty Low High
1+ $0.11 $0.11

Estimated market price range - modelled values for guidance only, not live distributor offers.

KSP44BU Features

  • High voltage NPN epitaxial silicon transistor.
  • Collector-emitter voltage up to 400V.
  • Continuous collector current of 300mA.
  • TO-92-3 package for through-hole mounting.
  • Pb-free, Halogen Free, and RoHS compliant.

KSP44BU Applications

  • Suitable for high-voltage switching.
  • Used in amplification circuits.
  • General purpose NPN transistor applications.
  • Power supply circuits.
  • Industrial control systems.

KSP44BU FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the KSP44BU?

The maximum collector-emitter voltage (VCEO) for the KSP44 variant is 400V, and for the KSP45 variant is 350V.

What is the maximum continuous collector current?

The maximum continuous collector current (IC) is 300mA.

What is the operating temperature range?

The junction temperature (TJ) operates up to 150°C.

What package type is the KSP44BU supplied in?

The KSP44BU is supplied in a TO-92-3 package.

Is the KSP44BU RoHS compliant?

Yes, the KSP44BU is RoHS3 Compliant.

What is the DC Current Gain (hFE) at 10mA and 10V?

The DC Current Gain (hFE) is a minimum of 50 at 10mA collector current and 10V collector-emitter voltage.

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