MJD122-1 The STMicroelectronics MJD122-1 is an NPN Darlington transistor designed for general purpose switching and amplifier applications. It offers a 100V collector-emitter voltage and 8A collector current.
Mfr Part #:

MJD122-1

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics MJD122-1 is an NPN Darlington transistor designed for general purpose switching and amplifier applications. It offers a 100V collector-emitter voltage and 8A collector current.
Total Stock: 9,000 pcs
$ Price Range: $0.99

MJD122-1 Available from 1 distributor

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MJD122-1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base - Emitter Saturation Voltage
Base Current
Base-Emitter On Voltage
Collector Peak Current
Collector-Emitter Sustaining Voltage
Current
Current Collector (Nominal)
Current Collector Cutoff (Maximum @ VCB = 100 V)
Current Collector Cutoff (Maximum @ VCE = 100 V, Tj = 125 °C)
Current Collector Cutoff (Maximum @ VCE = 50 V)
Current Gain Hfe (Minimum @ IC = 8 A, VCE = 4 V)
Current Gain Hfe (Minimum/Typical @ IC = 4 A, VCE = 4 V)
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter Cut-off Current
Max Operating Junction Temperature
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Thermal Resistance (Junction-Ambient)
Thermal Resistance Junction-Case
Total Dissipation
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
Voltage Collector Emitter (Nominal @ IB = 0)
Voltage Collector Emitter Saturation (Maximum @ IC = 4 A, IB = 16 mA)
Voltage Collector Emitter Saturation (Maximum @ IC = 8 A, IB = 80 mA)

MJD122-1 Description

Short technical summary and product information.

The STMicroelectronics MJD122-1 is a complementary NPN power Darlington transistor manufactured using Epitaxial Base technology. It is suitable for general purpose switching and amplifier applications.

 

Key electrical specifications include a collector-emitter voltage of 100V and a continuous collector current of 8A. The transistor can handle peak collector currents up to 8A and has a maximum power dissipation of 20W at 25°C case temperature. The DC current gain (hFE) is a minimum of 1000 at 4A and 4V, with a typical value of 12000.

 

This device features low base-drive requirements and an integrated antiparallel collector-emitter diode. It is electrically similar to the TIP122 and TIP127 series.

 

The MJD122-1 is supplied in a TO-251 (IPAK) through-hole power package, making it suitable for various circuit designs requiring robust power handling.

MJD122-1 Quick Information

Product Type: NPN Darlington Transistor
Canonical Name: STMicroelectronics MJD122-1 NPN Darlington Power Transistor
Subcategory: Single Transistor

MJD122-1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MJD122-1 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

MJD122-1 Features

  • NPN Darlington transistor for power applications.
  • 100V collector-emitter voltage rating.
  • 8A continuous collector current capability.
  • 20W total power dissipation.
  • TO-251 (IPAK) through-hole package.

MJD122-1 Applications

  • Suitable for general purpose switching.
  • Used in amplifier circuits.
  • Complementary NPN-PNP pair available.
  • Low base-drive requirements.

MJD122-1 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the MJD122-1?

The maximum collector-emitter voltage (VCEO) for the MJD122-1 is 100V.

What is the continuous collector current rating of the MJD122-1?

The MJD122-1 has a continuous collector current rating of 8A.

What is the power dissipation of the MJD122-1 at 25°C?

The total power dissipation (Ptot) for the MJD122-1 at 25°C is 20W.

What type of package is the MJD122-1 supplied in?

The MJD122-1 is supplied in a TO-251 (IPAK) package.

What is the operating temperature range for the MJD122-1?

The maximum operating junction temperature (Tj) for the MJD122-1 is 150°C.

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