Overview
The MMBT489LT1G is a high-current surface mount NPN silicon switching transistor designed for load management in portable applications. Produced by onsemi, this transistor is part of the SOT-23 (TO-236) package family and is known for its robust performance and compliance with environmental standards. It is Pb-free, halogen-free, and RoHS compliant, making it suitable for a wide range of modern electronic devices.
Key Specifications
| Parameter | Symbol | Max Unit |
|---|---|---|
| Collector-Emitter Voltage | VCEO | 30 Vdc |
| Collector-Base Voltage | VCBO | 50 Vdc |
| Emitter-Base Voltage | VEBO | 5.0 Vdc |
| Collector Current - Continuous | IC | 1.0 A |
| Collector Current - Peak | ICM | 2.0 A |
| Total Device Dissipation (Single Pulse < 10 s) | PDsingle | 575 mW |
| Junction and Storage Temperature Range | TJ, Tstg | -55 to +150 °C |
| Transition Frequency | fT | 100 MHz |
| Collector Capacitance | Cc | 15 pF |
| Forward Current Transfer Ratio (hFE), MIN | hFE | 300 |
Key Features
- Pb-free, halogen-free, and RoHS compliant, ensuring environmental sustainability.
- High collector current capability of up to 1 A and peak current of 2 A.
- High collector-emitter voltage of 30 V and collector-base voltage of 50 V.
- Transition frequency of 100 MHz, suitable for high-frequency applications.
- Low collector-emitter saturation voltage (VCE(sat)) and base-emitter saturation voltage (VBE(sat)).
- Compact SOT-23 (TO-236) package, ideal for space-constrained designs.
Applications
- Load management in portable electronic devices such as smartphones, tablets, and laptops.
- Switching applications in power management circuits.
- General-purpose amplification in audio and signal processing circuits.
- Automotive and industrial control systems requiring high reliability and robust performance.
Q & A
- What is the maximum collector-emitter voltage of the MMBT489LT1G transistor?
The maximum collector-emitter voltage (VCEO) is 30 Vdc.
- What is the peak collector current rating of the MMBT489LT1G?
The peak collector current (ICM) is 2.0 A.
- Is the MMBT489LT1G RoHS compliant?
Yes, the MMBT489LT1G is Pb-free, halogen-free, and RoHS compliant.
- What is the transition frequency of the MMBT489LT1G transistor?
The transition frequency (fT) is 100 MHz.
- What is the maximum junction temperature of the MMBT489LT1G?
The maximum junction temperature (TJ) is 150 °C.
- What package type does the MMBT489LT1G come in?
The MMBT489LT1G comes in the SOT-23 (TO-236) package.
- What are some typical applications of the MMBT489LT1G transistor?
Typical applications include load management in portable electronics, switching in power management circuits, and general-purpose amplification.
- What is the collector capacitance of the MMBT489LT1G?
The collector capacitance (Cc) is 15 pF.
- What is the minimum forward current transfer ratio (hFE) of the MMBT489LT1G?
The minimum forward current transfer ratio (hFE) is 300.
- What is the total device dissipation for a single pulse less than 10 seconds?
The total device dissipation for a single pulse less than 10 seconds (PDsingle) is 575 mW.
