Overview
The BSS138 is an N-Channel logic level enhancement mode field effect transistor produced by onsemi. This device is designed using onsemi’s proprietary high cell density DMOS technology, which minimizes on-state resistance and provides rugged, reliable, and fast switching performance. The BSS138 is particularly suited for low voltage, low current applications and is encased in a standard SOT-23 surface mount package, offering both durability and a space-saving form factor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (Vds) | 50 | V |
| Gate-Source Voltage (Vgs) | ±20 | V |
| Continuous Drain Current (ID) | 0.22 | A |
| Drain-Source On Resistance (Rds(on)) @ Vgs = 10V | 3.5 | Ω |
| Drain-Source On Resistance (Rds(on)) @ Vgs = 4.5V | 6.0 | Ω |
| Maximum Power Dissipation | 360 | mW |
| Operating Junction Temperature Range | -55 to 150 | °C |
| Input Capacitance (Ciss) | 27 | pF |
| Turn-On Delay Time | 2.5 | ns |
| Turn-On Rise Time | 9 | ns |
Key Features
- Low on-state resistance of 3.5Ω at Vgs = 10V and 6.0Ω at Vgs = 4.5V, reducing power loss during operation.
- High cell density DMOS technology for efficient and reliable performance.
- Fast switching and reverse body recovery.
- Compact SOT-23 surface mount package for space-saving designs.
- Wide operating junction temperature range from -55°C to 150°C.
Applications
The BSS138 is ideal for various low voltage, low current applications, including:
- Small servo motor control.
- Power MOSFET gate drivers.
- High efficiency switched mode power supplies.
- Other switching applications where minimizing power loss and ensuring reliable performance are crucial.
Q & A
- What is the maximum drain-source voltage of the BSS138?
The maximum drain-source voltage (Vds) of the BSS138 is 50V. - What is the continuous drain current rating of the BSS138?
The continuous drain current (ID) rating of the BSS138 is 0.22 A. - What is the on-state resistance of the BSS138 at Vgs = 10V?
The on-state resistance (Rds(on)) of the BSS138 at Vgs = 10V is 3.5Ω. - What is the operating junction temperature range of the BSS138?
The operating junction temperature range of the BSS138 is from -55°C to 150°C. - What package type is the BSS138 available in?
The BSS138 is available in a standard SOT-23 surface mount package. - What are some typical applications of the BSS138?
The BSS138 is typically used in small servo motor control, power MOSFET gate drivers, and high efficiency switched mode power supplies. - What is the maximum power dissipation of the BSS138?
The maximum power dissipation of the BSS138 is 360 mW. - What is the input capacitance (Ciss) of the BSS138?
The input capacitance (Ciss) of the BSS138 is 27 pF. - What is the turn-on delay time of the BSS138?
The turn-on delay time of the BSS138 is 2.5 ns. - Is the BSS138 RoHS compliant?
Yes, the BSS138 is RoHS compliant.
