The WST4040 is a high-performance N-channel MOSFET designed with a voltage of 40V, current of 5.8A, and resistance of 35mΩ, packaged in a compact SOT-23-3L format.
Applications
Electronic Cigarette
Controller
Digital Products
Small Appliances
Consumer Electronics
Technical Specifications Table
| Part number |
Configuration |
Type |
VDS |
VGS |
ID (A) |
RDS(ON)(mΩ) |
Ciss |
Package |
| @10V |
@6V |
@4.5V |
@2.5V |
@1.8V |
| (V) |
±(V) |
Max. |
Typ. |
Max. |
Typ. |
Max. |
Typ. |
Max. |
Typ. |
Max. |
Typ. |
(pF) |
| WST4040 |
Single |
N-Ch |
40 |
20 |
5.8 |
35 |
50 |
- |
- |
50 |
60 |
- |
- |
- |
- |
396 |
SOT-23-3L |
Cross References / Compatible Alternates:
AOS AO3422
VISHAY Si2318CDS
PANJIT PJA3460
Frequently Asked Questions (FAQ)
What are the primary specifications of the WST4040 MOSFET?
The WST4040 is an N-channel MOSFET featuring a maximum voltage rating of 40V, a continuous drain current of 5.8A, and a typical on-resistance (RDS(ON)) of 35mΩ at 10V VGS.
What package type does the WST4040 use?
The WST4040 MOSFET is designed in an industry-standard SOT-23-3L package, suitable for compact surface-mount technology (SMT) layouts.
What applications are best suited for the WST4040?
It is widely used in electronic cigarettes, motor/power controllers, digital products, small household appliances, and other consumer electronics.
Which equivalent models can cross-reference with the WST4040?
Equivalent compatible models include AOS AO3422, VISHAY Si2318CDS, and PANJIT PJA3460. Please check specific datasheets to verify parameter compatibility for your circuit.
What is the input capacitance (Ciss) rating of the WST4040?
The WST4040 MOSFET has an input capacitance (Ciss) of 396 pF, facilitating fast switching speeds and efficiency.
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