Overview
The BSS138LT3 is an N-Channel logic level enhancement mode field effect transistor produced by onsemi. This device is fabricated using onsemi’s proprietary high cell density DMOS technology, designed to minimize on-state resistance while providing rugged, reliable, and fast switching performance. It is particularly suited for low voltage, low current applications such as small servo motor control, power MOSFET gate drivers, and other switching applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Drain-to-Source Breakdown Voltage | V(BR)DSS | - | - | 50 | Vdc |
| Gate-to-Source Voltage - Continuous | VGS | - | - | ±20 | Vdc |
| Drain Current - Continuous | ID | - | - | 200 | mA |
| Pulsed Drain Current (tp ≤ 10 μs) | IDM | - | - | 800 | mA |
| Total Power Dissipation @ TA = 25°C | PD | - | - | 225 | mW |
| Operating and Storage Temperature Range | TJ, Tstg | -55 | - | 150 | °C |
| Thermal Resistance, Junction-to-Ambient | RθJA | - | - | 556 | °C/W |
| On-State Resistance @ VGS = 10 V, ID = 0.22 A | RDS(on) | 0.7 | 3.5 | - | Ω |
| On-State Resistance @ VGS = 4.5 V, ID = 0.22 A | RDS(on) | 1.0 | 6.0 | - | Ω |
| Gate Threshold Voltage | VGS(th) | 0.8 | 1.3 | 1.5 | V |
Key Features
- High density cell design for extremely low RDS(on)
- Rugged and reliable performance
- Compact industry standard SOT-23 surface mount package
- Pb-free and halogen-free, RoHS compliant
- Low threshold voltage (VGS(th): 0.85 V - 1.5 V) ideal for low voltage applications
- Fast switching performance
- AEC-Q101 qualified and PPAP capable for automotive and other critical applications
Applications
The BSS138LT3 is suitable for a variety of low voltage, low current applications, including:
- Small servo motor control
- Power MOSFET gate drivers
- DC-DC converters
- Power management in portable and battery-powered products such as computers, printers, PCMCIA cards, cellular and cordless telephones
- Other switching applications
Q & A
- What is the maximum drain-to-source breakdown voltage of the BSS138LT3?
The maximum drain-to-source breakdown voltage is 50 Vdc.
- What is the continuous drain current rating of the BSS138LT3?
The continuous drain current rating is 200 mA.
- What is the typical on-state resistance at VGS = 10 V and ID = 0.22 A?
The typical on-state resistance is 3.5 Ω.
- What is the gate threshold voltage range of the BSS138LT3?
The gate threshold voltage range is 0.8 V to 1.5 V).
- Is the BSS138LT3 RoHS compliant?
- What is the thermal resistance, junction-to-ambient, of the BSS138LT3?
The thermal resistance, junction-to-ambient, is 556 °C/W).
- What are the typical applications of the BSS138LT3?
Typical applications include small servo motor control, power MOSFET gate drivers, DC-DC converters, and power management in portable and battery-powered products).
- What is the package type of the BSS138LT3?
The package type is SOT-23 (TO-236)).
- Is the BSS138LT3 suitable for automotive applications?
- What is the maximum lead temperature for soldering purposes?
The maximum lead temperature for soldering purposes is 260 °C for 10 seconds).
