MJE243 The MJE243 is an NPN power transistor from On Semiconductor, rated for 100V and 4A. It is housed in a TO-225AA package and suitable for audio amplifier and switching applications.
Mfr Part #:

MJE243

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The MJE243 is an NPN power transistor from On Semiconductor, rated for 100V and 4A. It is housed in a TO-225AA package and suitable for audio amplifier and switching applications.
Total Stock: 119 pcs
$ Price Range: $0.99

MJE243 Available from 1 distributor

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MJE243 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current (Maximum)
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Leakage Current (Maximum @ VBE = 7.0 Vdc, IC = 0)
Leakage Current (Maximum @ VCB = 100 Vdc, IE = 0)
Leakage Current (Maximum @ VCE = 100 Vdc, IE = 0, TC = 125 °C)
Mounting Type
Operating and Storage Junction Temperature Range
Power
Power Dissipation (Maximum @ TC=25 °C)
Power Dissipation (Maximum) @ TA=25°C
Saturation Voltage (Maximum @ IC = 1.0 Adc, IB = 100 mAdc)
Saturation Voltage (Maximum @ IC = 2.0 Adc, IB = 200 mAdc)
Saturation Voltage (Maximum @ IC = 500 mAdc, IB = 50 mAdc)
Supplier Device Package
Thermal Resistance (Maximum @ Junction to case)
Thermal Resistance (Maximum @ Junction-to-Ambient)
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
gain (Minimum @ IC = 1.0 Adc, VCE = 1.0 Vdc)
gain (Minimum @ IC = 200 mAdc, VCE = 1.0 Vdc)
voltage (Minimum @ IC = 10 mAdc, IB = 0)

MJE243 Description

Short technical summary and product information.

The MJE243 is a complementary silicon power transistor manufactured by On Semiconductor. This NPN device is designed for low power audio amplifier and low-current, high-speed switching applications.

 

Key electrical specifications include a collector-emitter voltage (VCEO) of 100V, a continuous collector current (IC) of 4A, and a peak collector current (ICM) of 8A. It offers a maximum power dissipation of 15W at 25°C case temperature and a DC current gain (hFE) ranging from 40 to 180 at 200mA and 1V.

 

The transistor features a high collector-emitter sustaining voltage and high DC current gain. Its annular construction contributes to low leakages. The device is available in a TO-225AA or TO-126 package, suitable for through-hole mounting.

 

This transistor is Pb-free and RoHS compliant, making it suitable for modern electronic designs requiring environmentally conscious components.

MJE243 Quick Information

Product Type: NPN Power Transistor
Canonical Name: MJE243 NPN Power Transistor
Subcategory: Single

MJE243 Compliance

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

MJE243 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

MJE243 Features

  • 100V collector-emitter voltage rating.
  • 4A continuous collector current.
  • 15W maximum power dissipation.
  • NPN silicon power transistor.
  • TO-225AA through-hole package.

MJE243 Applications

  • Power switching applications
  • Signal amplification circuits
  • Automotive and industrial controls
  • High-voltage switching circuits

MJE243 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the MJE243?

The maximum collector-emitter voltage (VCEO) for the MJE243 is 100 Vdc.

What is the continuous collector current rating of the MJE243?

The MJE243 has a continuous collector current (IC) rating of 4 Adc.

What is the power dissipation of the MJE243 at 25°C?

The total power dissipation for the MJE243 is 15 W at a case temperature of 25°C.

What is the operating temperature range for the MJE243?

The operating and storage junction temperature range for the MJE243 is -65 to +150 °C.

What package type is the MJE243 supplied in?

The MJE243 is supplied in a TO-225AA or TO-126 package.

Is the MJE243 RoHS compliant?

Yes, the MJE243 is RoHS3 compliant.

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