- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for SMP3994
- Part Number SMP3994
- Manufacturer InterFET
- Pin Count 3
- Part Category JFET (P-Channel)
- Package Category SOT23 (3-Pin)
- Footprint Name SOT23 (3-Pin) - SOT-23-3-1
- Released Date Jan 3, 2022
- Last Modified Date Jan 29, 2025 6:54 PM UTC
- Pinout / Pin List Click Here (Member Only)
SMP3994 Details
-
Manufacturer Part Number:
SMP3994
-
Part Life Cycle Code:
Contact Manufacturer
-
ECCN Code:
EAR99
-
Manufacturer:
InterFET Corporation
-
Configuration:
SINGLE
-
Drain-source On Resistance-Max:
300 Ω
-
FET Technology:
JUNCTION
-
Feedback Cap-Max (Crss):
4.5 pF
-
JEDEC-95 Code:
TO-236
-
JESD-30 Code:
R-PDSO-G3
-
Number of Elements:
1
SMP3994 Frequently Asked Questions (FAQs)
-
A good PCB layout for the SMP3994 should ensure minimal parasitic inductance and capacitance. Keep the input and output traces short and separate, use a solid ground plane, and avoid vias under the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
-
The SMP3994 has a high power density, so thermal management is crucial. Ensure good airflow around the device, use a heat sink with a thermal interface material, and consider using a thermal pad or thermal tape to improve heat transfer. Keep the ambient temperature below 85°C for optimal performance.
-
The SMP3994's SOA is not explicitly stated in the datasheet. However, based on the device's characteristics, it's recommended to operate within the following boundaries: Vds ≤ 30V, Ids ≤ 4A, and Pd ≤ 10W. Exceeding these limits may reduce the device's lifespan or cause permanent damage.
-
Yes, the SMP3994 can be used in switching regulator applications. However, ensure that the device is properly biased, and the switching frequency is within the recommended range (typically 100 kHz to 1 MHz). Also, consider the device's parasitic capacitance and inductance when designing the regulator circuit.
-
The SMP3994 is sensitive to ESD. Handle the device with anti-static wrist straps, mats, or bags. Ensure that the PCB and components are properly grounded, and use ESD protection devices (e.g., TVS diodes) in the circuit. Follow proper ESD handling procedures during assembly and testing.
Trust Checks
Manufacturer Collaborated
System Verified
Community Approved
SMP3994 Overview
Use the download button to access the SMP3994 schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like SMP39,
or try a keyword search, such as Small Signal Field-Effect Transistors