Overview
The BSS138 is an N-Channel logic level enhancement mode field effect transistor produced by onsemi. It is fabricated using onsemi's proprietary, high cell density, DMOS technology. This transistor is designed to minimize on-state resistance, providing rugged, reliable, and fast switching performance. It is particularly suited for low voltage, low current applications.
Key Specifications
| Parameter | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Drain-Source Voltage | VDSS | 50 | V | ||
| Gate-Source Voltage | VGSS | ±20 | V | ||
| Continuous Drain Current | ID | 0.22 | A | ||
| Pulsed Drain Current | ID | 0.88 | A | ||
| Maximum Power Dissipation | PD | 0.36 | W | ||
| Operating and Storage Junction Temperature Range | TJ, TSTG | -55 | 150 | °C | |
| Gate Threshold Voltage | VGS(th) | 0.8 | 1.3 | 1.5 | V |
| Static Drain-Source On-Resistance | RDS(on) | 0.7 | 3.5 | Ω @ VGS = 10 V, ID = 0.22 A | |
| Static Drain-Source On-Resistance | RDS(on) | 1.0 | 6.0 | Ω @ VGS = 4.5 V, ID = 0.22 A |
Key Features
- High cell density DMOS technology for extremely low RDS(on)
- Rugged and reliable performance
- Fast switching capabilities
- Logic level gate drive for ease of use with microcontrollers and other logic devices
- Low on-state resistance: RDS(on) = 3.5 Ω @ VGS = 10 V, ID = 0.22 A
- High drain-source breakdown voltage: VDSS = 50 V
Applications
- Small servo motor control
- Power MOSFET gate drivers
- Other switching applications
- Low voltage, low current circuits
Q & A
- What is the maximum drain-source voltage of the BSS138?
The maximum drain-source voltage (VDSS) is 50 V.
- What is the typical on-state resistance of the BSS138 at VGS = 10 V and ID = 0.22 A?
The typical on-state resistance (RDS(on)) is 3.5 Ω.
- What is the gate threshold voltage range of the BSS138?
The gate threshold voltage (VGS(th)) range is from 0.8 V to 1.5 V.
- What are the typical applications of the BSS138?
Typical applications include small servo motor control, power MOSFET gate drivers, and other switching applications.
- What is the maximum continuous drain current of the BSS138?
The maximum continuous drain current (ID) is 0.22 A.
- What is the maximum power dissipation of the BSS138?
The maximum power dissipation (PD) is 0.36 W.
- What is the operating and storage junction temperature range of the BSS138?
The operating and storage junction temperature range (TJ, TSTG) is from -55°C to 150°C.
- How does the on-state resistance of the BSS138 vary with temperature?
The on-state resistance increases with temperature; see the typical characteristics section in the datasheet for detailed graphs.
- What is the gate-source voltage range for the BSS138?
The gate-source voltage (VGSS) range is ±20 V.
- What are the dynamic characteristics of the BSS138?
The dynamic characteristics include turn-on delay time, turn-on rise time, turn-off delay time, and turn-off fall time; see the datasheet for specific values.
