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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

STMicroelectronics STP20NF06

Name: STP20NF06
Brand: STMicroelectronics
SKU: STP20NF06
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP20NF06

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: STP20NF06.pdf

Description:: MOSFET N-CH 60V 20A TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:6,838

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Product details

Overview

STP20NF06 from STMicroelectronics is an N-channel enhancement-mode Power MOSFET in TO-220 package, rated for 60 V drain-source voltage, 20 A continuous drain current at T_C = 25°C, and 0.06 Ω typical R_DS(on) at V_GS = 10 V. It features avalanche ruggedness, 175°C maximum junction temperature, and high dv/dt capability-designed for robust switching in DC-DC converters and motor control circuits.

For engineers reviewing the STP20NF06 datasheet, STP20NF06 pinout, STP20NF06 application, or STP20NF06 equivalent, key selection criteria include its 60 V V_DS, 0.06 Ω R_DS(on), 120 mJ single-pulse avalanche energy, TO-220 thermal resistance (2.5 °C/W), and gate charge profile (14 nC total) for optimized gate drive design.

Technical Context

This MOSFET employs ST's STripFET™ II process with strip-based cell architecture to achieve high packing density and low on-resistance while maintaining rugged unclamped inductive switching performance. Its 100% avalanche-tested construction ensures reliability under transient overvoltage conditions common in relay driving and flyback snubbing.

The device operates with a gate threshold voltage of 2–4 V and exhibits stable transconductance (10 S typ.) across temperature. Its dynamic parameters-including 400 pF input capacitance, 15 ns rise time, and 50 ns reverse recovery time-support efficient hard-switching up to ~100 kHz in non-resonant topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - Maximum blocking voltage before breakdown; suitable for 48 V bus and 24 V industrial systems
R_DS(on)	0.06 Ω (typ.) at V_GS = 10 V - Enables <1.2 W conduction loss at 20 A, reducing heatsink requirements
I_D (cont.)	20 A at T_C = 25°C - Continuous current rating defined at case temperature, not ambient
E_AS	120 mJ - Single-pulse avalanche energy at T_j = 25°C; supports reliable unclamped inductive turn-off
Q_g	14 nC - Total gate charge determines driver power and switching speed trade-offs
T_j(max)	175°C - Enables operation in sealed enclosures or high-ambient environments without derating
dv/dt	9 V/ns - High immunity to false triggering during fast voltage transients

Pinout & Package

STP20NF06 uses a standard TO-220 package with three leads: Gate (pin 1), Drain (pin 2), Source (pin 3). The metal tab (Drain-connected) serves as primary heat dissipation path and must be electrically isolated from chassis unless circuit design permits direct connection.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (left)	Gate	Control terminal requiring ≥10 V for full enhancement; sensitive to ESD (±20 V max rating)
Pin 2 (center)	Drain	High-side switching node; internally connected to metal tab; requires isolation when mounted to heatsink
Pin 3 (right)	Source	Power return path and reference for gate drive; carries full load current and diode recovery current

Key Features

Feature	Design Value
Avalanche ruggedness	100% production-tested for 120 mJ single-pulse energy-eliminates need for external clamping in inductive loads
Thermal performance	2.5 °C/W R_th(j-case) enables 60 W dissipation at ΔT = 150°C-supports compact thermal design
High dv/dt immunity	9 V/ns rating prevents spurious turn-on during fast bus transients in motor drives and SMPS
STripFET™ II process	Enables 0.06 Ω R_DS(on) with proven manufacturing reproducibility-reduces parametric spread in volume production

Applications

DC-DC Converter Primary Switch

Brushed DC Motor Driver

Use Scenario: Step-down converter operating from 48 V input to 12 V output at 5–10 A load.

IC Role / Device Role / Timing Role: High-side synchronous rectifier switch handling PWM-controlled power delivery.

Use Value: Low 0.06 Ω R_DS(on) reduces conduction loss to <1.2 W, enabling >92% efficiency without forced air cooling.

Use Scenario: H-bridge driver for 24 V brushed motor in industrial actuator with bidirectional control.

IC Role / Device Role / Timing Role: Low-side switching element managing motor current reversal and freewheeling paths.

Use Value: 120 mJ avalanche rating absorbs inductive kickback during PWM commutation, eliminating external flyback diodes.

AC-DC Auxiliary Supply Switch

Relay/Contactor Driver

Use Scenario: 12 V auxiliary supply in offline SMPS using flyback topology with 200 kHz switching.

IC Role / Device Role / Timing Role: Primary-side power switch regulating energy transfer to secondary winding.

Use Value: 9 V/ns dv/dt immunity prevents false triggering from transformer leakage spikes, improving system stability.

Use Scenario: Solid-state replacement for electromechanical relay controlling 24 V solenoid valves in PLC I/O modules.

IC Role / Device Role / Timing Role: Low-loss, high-reliability switching element replacing mechanical contacts.

Use Value: 175°C T_j(max) and 100% avalanche test ensure long-term operation under repeated inductive turn-off stress.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel 60 V power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRFZ44N	R_DS(on) = 0.028 Ω (lower), but E_AS = 60 mJ (half), T_j(max) = 175°C same	Higher efficiency at low current, but less robust in unclamped inductive switching	Prefer for low-loss linear-regulator-style applications; avoid where inductive energy absorption is critical
STP16NF06	Same family, lower I_D = 16 A, R_DS(on) = 0.075 Ω, identical avalanche rating and package	Reduced current capacity suits lower-power designs with tighter cost targets	Select when 16 A continuous rating suffices and gate charge (12 nC) allows simpler driver design

Compared with IRFZ44N and STP16NF06, STP20NF06 delivers optimal balance of conduction loss (0.06 Ω), avalanche robustness (120 mJ), and thermal capability (2.5 °C/W)-making it preferred for industrial switching where reliability under transient stress outweighs marginal R_DS(on) gains.

Availability

STP20NF06 is available at Aetrix Electronics and suitable for DC-DC converters, brushed DC motor drivers, and AC-DC auxiliary supplies requiring stable component supply and long-lifecycle support.

Supply support for STP20NF06 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power, analog, MEMS, and microcontroller technologies.

STP20NF06 belongs to the STripFET™ II Power MOSFET product line, engineered for high-efficiency, high-reliability switching in industrial power conversion and motor control applications.

FAQ

What is the maximum safe operating junction temperature for STP20NF06?

The absolute maximum junction temperature is 175°C, validated across the full operating range per ST's datasheet revision 3 (May 2007). This rating applies under steady-state and transient conditions, including avalanche events, provided thermal design maintains T_j ≤ 175°C using the specified R_th(j-case) = 2.5 °C/W and appropriate heatsinking.

Is STP20NF06 lead-free and RoHS-compliant?

Yes, STP20NF06 is manufactured in ST's ECOPACK®-compliant TO-220 package with lead-free second-level interconnects, meeting RoHS Directive 2011/65/EU. The inner box label and package marking confirm compliance, and soldering profiles follow JEDEC J-STD-020 for lead-free reflow.

Can STP20NF06 replace STF20NF06 in existing designs?

Yes, STP20NF06 and STF20NF06 share identical electrical specifications (V_DS, R_DS(on), I_D, E_AS) but differ in package: TO-220 vs. TO-220FP. STP20NF06 offers higher power dissipation (60 W vs. 28 W) due to lower R_th(j-case) (2.5 vs. 5.35 °C/W), making it suitable for upgraded thermal performance where board space allows TO-220 mounting.

What gate drive voltage is required for full enhancement?

A minimum gate-source voltage of 10 V is required to achieve the specified R_DS(on) of 0.06 Ω. The gate threshold voltage ranges from 2 V to 4 V, but operation below 8 V results in significantly higher on-resistance and increased conduction loss-designs must ensure stable 10–15 V gate drive with adequate peak current (>1 A) for fast switching.

STP20NF06 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™ II

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 20A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 70mOhm @ 10A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 18 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 400 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 60W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STP20NF06 FAQ

1.How can I place an order for STP20NF06 through Aetrix?

Please submit a Request for Quotation (RFQ) for STP20NF06 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STP20NF06 reliable?

The price and inventory of STP20NF06 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP20NF06 is usually 5 days.

3.What payment methods are accepted for STP20NF06?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP20NF06 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP20NF06?

STP20NF06 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP20NF06 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STP20NF06?

For technical support, including STP20NF06 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP20NF06 requirements.

6.How does Aetrix verify that STP20NF06 is sourced from the original manufacturer or authorized distributors?

All STP20NF06 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STP20NF06 meets industry standards.

7.What is the process for return or replacement of STP20NF06?

All STP20NF06 units undergo pre-shipment inspection (PSI). If there is an issue with STP20NF06, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STP20NF06 part is unused and in its original packaging.

Return procedure for STP20NF06:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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