Mfr Part #:

STFW3N170

The STFW3N170 is an N-Channel MOSFET from STMicroelectronics with a 1700V drain-source voltage and 2.6A continuous current rating. It is housed in a TO-3PF package for through-hole mounting.

✓ Total Stock: 27,550 pcs

$ Price Range: $2.56

STFW3N170 Available from 3 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	21,900 pcs On Request	21900 pcs	On Request	1	On Request	On Request	On Request	On Request	2026-02-16 21:33:16
Xingangxin ✓ Non-Authorised Inventory information	4,030 pcs On Request	4030 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Optech Co.,Limited ✓ Non-Authorised Inventory information	1,620 pcs On Request	1620 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

STFW3N170 Description

Short technical summary and product information.

The STMicroelectronics STFW3N170 is an N-Channel MOSFET designed for high-voltage applications. It features a maximum drain-source voltage (Vdss) of 1700V and a continuous drain current rating of 2.6A at the case temperature.

Key electrical characteristics include a maximum on-resistance (Rds On) of 13 Ohms at 1.3A and 10V, a gate charge (Qg) of 44 nC, and an input capacitance (Ciss) of 1100 pF. The gate threshold voltage (Vgs(th)) is 5V at 250µA, and the maximum gate-source voltage is ±30V.

This MOSFET operates within a temperature range of -55°C to 150°C (TJ) and has a maximum power dissipation of 63W (Tc). It is packaged in a TO-3PF case and designed for through-hole mounting.

The STFW3N170 is suitable for various power switching applications where high voltage blocking capability is required.

STFW3N170 Quick Information

Product Type: MOSFET

Canonical Name: STFW3N170 N-Channel MOSFET

Subcategory: Single

STFW3N170 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

STFW3N170 Estimated Pricing

Qty	Low	High
1+	$2.56	$2.56

Estimated market price range - modelled values for guidance only, not live distributor offers.

STFW3N170 Features

1700V drain-source voltage rating.
2.6A continuous drain current.
13 Ohm maximum on-resistance.
TO-3PF package for through-hole mounting.
Wide operating temperature range.

STFW3N170 Applications

High-voltage power supply switching circuits.
Inverter and converter applications.
Industrial motor control systems.
Power factor correction stages.
High-voltage DC-DC converters.

STFW3N170 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the maximum drain-source voltage of the STFW3N170?

1700V.

What is the continuous drain current rating?

2.6A at case temperature.

What is the on-resistance?

13 Ohm maximum at 1.3A and 10V gate-source voltage.

What is the operating junction temperature range?

-55°C to 150°C.

What package is the STFW3N170 available in?

TO-3P-3 Full Pack (TO-3PF) through-hole package.

What is the gate charge?

44 nC at 10V gate-source voltage.

What is the input capacitance?

1100 pF at 100V drain-source voltage.

Category	Transistors - FETs, MOSFETs - Single
Manufacturer Name	STMicroelectronics
Current	2.6 A (Tc)
Drain to Source Voltage (Vdss)	1700 V
Drive Voltage (Max Rds On, Min Rds On)	10V
FET Type	N-Channel
Gate Charge (Qg) (Max) @ Vgs	44 nC @ 10 V
Input Capacitance (Ciss) (Max) @ Vds	1100 pF @ 100 V
Lead Style	Through Hole
Mounting Type	Through Hole
Operating Temperature	-55°C ~ 150°C (TJ)
Power Dissipation (Max)	63 W (Tc)
Rds On (Max) @ Id, Vgs	13 Ohm @ 1.3 A, 10 V
Supplier Device Package	TO-3PF
Technology	MOSFET (Metal Oxide)
Vgs (Max)	±30V
Vgs(th) (Max) @ Id	5V @ 250µA