Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Transistor Type | NPN |
| Current - Collector(Ic)(Max) | 500 mA |
| Voltage - Collector Emitter Breakdown(Max) | 300 V |
| Vce Saturation(Max) @ Ib Ic | 500mV @ 2mA, 20mA |
| Current - Collector Cutoff(Max) | 100nA (ICBO) |
| DC Current Gain(h FE)(Min) @ Ic Vce | 40 @ 30mA, 10V |
| Power - Max | 225 mW |
| Frequency - Transition | 50MHz |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
Overview
Description
The MMBTA42LT1G is a general-purpose NPN bipolar junction transistor (BJT) in a small SOT-23 surface-mount package. Key features include:
- Voltage Rating: High collector-emitter voltage (VCE) of 300V, suitable for switching and amplification in high-voltage applications.
- Current Handling: Maximum collector current (IC) of 500mA.
- Low Power: Designed for low-power circuits with a power dissipation of 225mW.
- Fast Switching: Useful for switching applications due to its moderate speed.
Common uses include signal amplification, high-voltage switching, and driver circuits in power supplies, lighting, and industrial controls. Its compact size makes it ideal for space-constrained designs.
For detailed specifications, refer to the manufacturer’s datasheet.
- Voltage Rating: High collector-emitter voltage (VCE) of 300V, suitable for switching and amplification in high-voltage applications.
- Current Handling: Maximum collector current (IC) of 500mA.
- Low Power: Designed for low-power circuits with a power dissipation of 225mW.
- Fast Switching: Useful for switching applications due to its moderate speed.
Common uses include signal amplification, high-voltage switching, and driver circuits in power supplies, lighting, and industrial controls. Its compact size makes it ideal for space-constrained designs.
For detailed specifications, refer to the manufacturer’s datasheet.
Equivalent
Equivalent products to the MMBTA42LT1G (NPN transistor, 300V, 500mA) include:
- KSC2383YTA (Fairchild/ON Semi)
- 2SC2383 (Various manufacturers)
- BC846W (Lower voltage alternative)
- PXT2222A (Higher current, lower voltage)
Check datasheets for exact specs. Most are SOT-23 packaged.
- KSC2383YTA (Fairchild/ON Semi)
- 2SC2383 (Various manufacturers)
- BC846W (Lower voltage alternative)
- PXT2222A (Higher current, lower voltage)
Check datasheets for exact specs. Most are SOT-23 packaged.
Pinout
The MMBTA42LT1G is a SOT-23 packaged NPN transistor with 3 pins (Emitter, Base, Collector).
Functions:
- Pin 1 (Emitter): Current flows out.
- Pin 2 (Base): Controls transistor switching/amplification.
- Pin 3 (Collector): Current flows in.
Key Features:
- High voltage (300V max) for switching applications.
- Low power, suitable for small-signal amplification.
Commonly used in switching circuits, amplifiers, and high-voltage applications.
Functions:
- Pin 1 (Emitter): Current flows out.
- Pin 2 (Base): Controls transistor switching/amplification.
- Pin 3 (Collector): Current flows in.
Key Features:
- High voltage (300V max) for switching applications.
- Low power, suitable for small-signal amplification.
Commonly used in switching circuits, amplifiers, and high-voltage applications.
Application
The MMBTA42LT1G, a general-purpose NPN transistor, is commonly used in:
- Switching circuits (relays, LEDs, small motors)
- Amplification (audio, signal processing)
- Digital logic circuits (inverters, drivers)
- Consumer electronics (remote controls, power management)
- Automotive applications (sensors, lighting control)
Its small SOT-23 package and high current gain make it suitable for low-power, space-constrained designs.
- Switching circuits (relays, LEDs, small motors)
- Amplification (audio, signal processing)
- Digital logic circuits (inverters, drivers)
- Consumer electronics (remote controls, power management)
- Automotive applications (sensors, lighting control)
Its small SOT-23 package and high current gain make it suitable for low-power, space-constrained designs.
Package
The MMBTA42LT1G is a PNP bipolar junction transistor (BJT) in a SOT-23 surface-mount package. It is designed for general-purpose amplification and switching applications. The SOT-23 package is compact, with three leads, making it suitable for space-constrained PCB designs.
