Specifications
| Attribute | Value |
| Package | Cut Tape (CT),Bulk |
| ProductStatus | Obsolete |
| TransistorType | PNP |
| Current-Collector(Ic)(Max) | 500 mA |
| Voltage-CollectorEmitterBreakdown(Max) | 300 V |
| Current-CollectorCutoff(Max) | 100µA |
| DCCurrentGain(hFE)(Min)@IcVce | 30 @ 50mA, 10V |
| Power-Max | 15 W |
| OperatingTemperature | -65°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-252-3, DPak (2 Leads + Tab), SC-63 |
Overview
Description
The MJD350T4 is a high-performance NPN Darlington transistor designed for switching and amplification applications. Key features include:
- High current gain (hFE): Typically 1000, making it suitable for low-power signal amplification.
- Collector current (IC): Up to 3A, supporting moderate power loads.
- Voltage ratings: VCEO (Collector-Emitter) of 350V, enabling use in high-voltage circuits.
- Low saturation voltage: Ensures efficient switching.
Commonly used in relay drivers, motor control, and power regulators, the MJD350T4 is housed in a TO-252 (DPAK) package for efficient heat dissipation. Its Darlington configuration provides high input impedance, reducing drive current requirements.
For optimal performance, ensure proper heat sinking in high-current applications and adhere to datasheet specifications.
- High current gain (hFE): Typically 1000, making it suitable for low-power signal amplification.
- Collector current (IC): Up to 3A, supporting moderate power loads.
- Voltage ratings: VCEO (Collector-Emitter) of 350V, enabling use in high-voltage circuits.
- Low saturation voltage: Ensures efficient switching.
Commonly used in relay drivers, motor control, and power regulators, the MJD350T4 is housed in a TO-252 (DPAK) package for efficient heat dissipation. Its Darlington configuration provides high input impedance, reducing drive current requirements.
For optimal performance, ensure proper heat sinking in high-current applications and adhere to datasheet specifications.
Equivalent
The MJD350T4 is a PNP bipolar transistor. Equivalent or similar products include:
- MJD340T4 (Complementary NPN)
- TIP42C (Higher power, similar characteristics)
- BD246C (General-purpose PNP alternative)
- 2SB1560 (Japanese equivalent, higher current rating)
Check datasheets for exact specs before substitution.
- MJD340T4 (Complementary NPN)
- TIP42C (Higher power, similar characteristics)
- BD246C (General-purpose PNP alternative)
- 2SB1560 (Japanese equivalent, higher current rating)
Check datasheets for exact specs before substitution.
Features
The MJD350T4 is a high-performance NPN Darlington transistor with the following key features:
- High Current Gain (hFE): Up to 20,000 for efficient signal amplification.
- High Collector Current (IC): 3A continuous, suitable for power applications.
- Voltage Ratings: VCEO = 350V (collector-emitter), VBEO = 5V (base-emitter).
- Low Saturation Voltage (VCE(sat)): ~1.5V (typ.) at 3A, reducing power loss.
- Built-in Base-Emitter Resistors: Improves stability and switching performance.
- Package: TO-252 (DPAK), compact and surface-mountable.
- Applications: Motor control, relays, inductive loads, and power switching.
Compact, robust, and efficient for medium-power circuits.
- High Current Gain (hFE): Up to 20,000 for efficient signal amplification.
- High Collector Current (IC): 3A continuous, suitable for power applications.
- Voltage Ratings: VCEO = 350V (collector-emitter), VBEO = 5V (base-emitter).
- Low Saturation Voltage (VCE(sat)): ~1.5V (typ.) at 3A, reducing power loss.
- Built-in Base-Emitter Resistors: Improves stability and switching performance.
- Package: TO-252 (DPAK), compact and surface-mountable.
- Applications: Motor control, relays, inductive loads, and power switching.
Compact, robust, and efficient for medium-power circuits.
Pinout
The MJD350T4 is a PNP bipolar junction transistor (BJT) in a TO-252-4 (DPAK) package with 4 pins.
Pin Functions:
1. Base (B) – Controls transistor switching.
2. Emitter (E) – Current flows out (PNP configuration).
3. Collector (C) – Current flows in.
4. Thermal Pad – Improves heat dissipation (typically connected to ground or left floating).
Key Features:
- Voltage/Current Ratings: VCEO = -100V, IC = -5A (continuous).
- Application: Power switching, amplification in automotive/industrial circuits.
The 4th pin (thermal pad) is non-electrical but aids cooling. Always refer to the datasheet for exact pinout and usage.
Pin Functions:
1. Base (B) – Controls transistor switching.
2. Emitter (E) – Current flows out (PNP configuration).
3. Collector (C) – Current flows in.
4. Thermal Pad – Improves heat dissipation (typically connected to ground or left floating).
Key Features:
- Voltage/Current Ratings: VCEO = -100V, IC = -5A (continuous).
- Application: Power switching, amplification in automotive/industrial circuits.
The 4th pin (thermal pad) is non-electrical but aids cooling. Always refer to the datasheet for exact pinout and usage.
Manufacturer
The MJD350T4 is a power transistor manufactured by ON Semiconductor (now known as onsemi after rebranding in 2021).
onsemi is a global semiconductor company specializing in energy-efficient technologies, including power management, analog, and sensor solutions. It serves industries like automotive, industrial, and consumer electronics. Known for reliability and innovation, onsemi provides components for applications such as power supplies, motor control, and lighting.
The MJD350T4 is a PNP bipolar junction transistor (BJT) designed for medium-power applications.
onsemi is a global semiconductor company specializing in energy-efficient technologies, including power management, analog, and sensor solutions. It serves industries like automotive, industrial, and consumer electronics. Known for reliability and innovation, onsemi provides components for applications such as power supplies, motor control, and lighting.
The MJD350T4 is a PNP bipolar junction transistor (BJT) designed for medium-power applications.
