Mfr Part #:

STN3N40K3

Name: STN3N40K3
Brand: STMicroelectronics
SKU: STN3N40K3
Availability: InStock

Mfr Name: STMicroelectronics

Description:

MOSFET N-CH 400V 1.8A SOT223

✓ Total Stock: 52,000 pcs

STN3N40K3 Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Risen Electronics ✓ Non-Authorised Inventory information	4,000 pcs On Request	4000 pcs	On Request	1	On Request	On Request	On Request	On Request	2026-02-16 21:33:16
Fe Components ✓ Non-Authorised Inventory information	48,000 pcs On Request	48000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

Short technical summary and product information.

MOSFET N-CH 400V 1.8A SOT223

Mfr Standard Lead Time: 12 weeks (varies by distributor)

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Category	Transistors - FETs, MOSFETs - Single
Manufacturer Name	STMicroelectronics
Current	1.8A (Tc)
Drain to Source Voltage (Vdss)	400 V
Drive Voltage (Max Rds On, Min Rds On)	10V
FET Type	N-Channel
Gate Charge (Qg) (Max) @ Vgs	11 nC @ 10 V
Input Capacitance (Ciss) (Max) @ Vds	165 pF @ 50 V
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 150°C (TJ)
Power Dissipation (Max)	3.3W (Ta)
Rds On (Max) @ Id, Vgs	3.4Ohm @ 600mA, 10V
Supplier Device Package	SOT-223
Technology	MOSFET (Metal Oxide)
Vgs (Max)	±30V
Vgs(th) (Max) @ Id	4.5V @ 50µA