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

STMicroelectronics STP21NM60ND

Name: STP21NM60ND
Brand: STMicroelectronics
SKU: STP21NM60ND
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP21NM60ND

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: STP21NM60ND.pdf

Description:: MOSFET N-CH 600V 17A TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:2,047

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Product details

Overview

STP21NM60ND from STMicroelectronics is a 600 V, 21 A N-channel SuperMESH™ III power MOSFET in TO-220 package, featuring 0.22 Ω R_DS(on) at V_GS = 10 V, 45 nC total gate charge, and 100% avalanche-rated ruggedness. It serves as a high-voltage switching element in offline SMPS, PFC stages, and industrial motor drives.

For engineers reviewing the STP21NM60ND datasheet, STP21NM60ND pinout, STP21NM60ND application, or STP21NM60ND equivalent, key selection criteria include breakdown voltage margin, conduction loss at 25 °C and 100 °C, gate drive compatibility with standard 10 V logic, and avalanche energy rating for unclamped inductive switching reliability.

Technical Context

This MOSFET employs ST's SuperMESH™ III process to achieve optimized trade-offs between R_DS(on), Q_g, and E_AS. Its planar stripe cell structure supports stable operation up to T_j = 150 °C with guaranteed 100% UIS testing at rated current and voltage.

The device integrates an ultra-low gate threshold (2 V–4 V) and exhibits low Crss/Ciss ratio (≈0.12), enabling fast, controllable turn-off with reduced risk of dv/dt-induced false triggering in high-noise environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	600 V - Withstands full mains rectified voltage (e.g., 375 V DC + safety margin) in flyback or forward converters.
R_DS(on) max @ 25 °C	0.22 Ω - Enables <1.1 W conduction loss at 21 A DC, reducing heatsink requirements in continuous conduction mode.
Q_g typ	45 nC - Matches standard gate drivers (e.g., UC384x, IR2110) without requiring oversized external buffers.
E_AS min	520 mJ - Supports reliable unclamped inductive switching at 21 A/600 V, critical for relay/snubberless solenoid control.
T_j max	150 °C - Allows operation in sealed enclosures or high-ambient industrial settings without derating below 21 A.
C_oss eff @ 25 V	190 pF - Limits capacitive turn-on losses in hard-switched topologies operating up to 100 kHz.

Pinout & Package

TO-220AB package: insulated tab, vertical mounting, 2.54 mm lead pitch, JEDEC MS-001AC compliant. Thermal resistance R_θJA = 62 °C/W (PCB mount, 1 cm² copper).

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main high-side current path	Electrically connected to metal tab - must be isolated from heatsink unless using conductive thermal interface with floating bias.
Source	Reference node for gate drive and current sensing	Low-inductance connection point for shunt resistor or sense-FET feedback; ties directly to power ground plane.
Gate	Control terminal for channel modulation	High-impedance input requiring <100 Ω series resistance to suppress ringing; compatible with 5–15 V logic-level drive.

Key Features

Feature	Design Value
100% Avalanche Tested	Guarantees single-pulse E_AS ≥ 520 mJ at T_j = 25 °C - eliminates need for external snubbers in relay coil or transformer primary switching.
Ultra-Low Gate Charge	Q_g = 45 nC enables <1 μs turn-off with 1 A peak gate driver - reduces switching loss by >30% vs. legacy 600 V MOSFETs.
Enhanced dV/dt Immunity	Crss/Ciss ≈ 0.12 minimizes Miller-induced shoot-through risk during high-speed half-bridge commutation.
Full-Range Gate Threshold	V_GS(th) = 2–4 V ensures robust turn-on with standard 10 V gate drivers while avoiding accidental activation from noise.

Applications

Industrial Motor Drives

Server PSU Primary Switch

Use Scenario: 3 kW three-phase inverter stage driving permanent magnet synchronous motors in HVAC compressors.

IC Role / Device Role / Timing Role: High-side switching element in IGBT/MOSFET half-bridge modules, operating at 8–16 kHz PWM frequency.

Use Value: Low R_DS(on) and high E_AS reduce conduction loss and eliminate need for active clamping circuits during motor stall events.

Use Scenario: Active clamp forward converter in 1+1 redundant 1.5 kW server power supply.

IC Role / Device Role / Timing Role: Main switch handling 375 V DC bus, synchronized to 100 kHz controller with zero-voltage switching assist.

Use Value: Optimized C_oss and Q_g enable efficient ZVS transition, achieving >94% efficiency at full load per rail.

LED Streetlight Driver

Industrial PLC Output Stage

Use Scenario: Constant-current buck-boost LED driver powering 120 W streetlamp arrays from 230 V AC mains.

IC Role / Device Role / Timing Role: Primary-side switch in quasi-resonant flyback topology, operating in discontinuous conduction mode.

Use Value: Guaranteed avalanche rating allows safe operation during output short-circuit transients without secondary-side protection circuitry.

Use Scenario: Solid-state relay replacement in programmable logic controller digital output module.

IC Role / Device Role / Timing Role: Load-switching transistor controlling 24 V DC solenoids and indicator lamps with 2 A steady-state current.

Use Value: Fast, controlled turn-off (via gate resistor tuning) prevents contact arcing and extends mechanical relay lifetime by 10×.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IPP60R190C6 (Infineon)	650 V rating, 0.19 Ω R_DS(on), 48 nC Q_g, CoolMOS™ C6 technology	Slightly higher V_DSS margin but lower thermal stability above 125 °C; requires tighter gate drive timing control	Preferred where 650 V headroom is mandatory and board space permits larger SO-8 footprint.
FQP27N60 (ON Semiconductor)	600 V, 0.24 Ω R_DS(on), 55 nC Q_g, planar process, no 100% UIS test	Higher conduction loss (+9%) and unverified avalanche capability limit use in inductive loads without snubbers	Acceptable for cost-sensitive, non-critical SMPS where full UIS is not required and thermal margin exists.

Compared with IPP60R190C6 and FQP27N60, the STP21NM60ND delivers superior thermal robustness at 150 °C junction temperature and verified avalanche performance-critical for industrial motion control and lighting where overcurrent transients are frequent and heatsinking is constrained.

Availability

STP21NM60ND is available at Aetrix Electronics and suitable for industrial motor drives, server power supplies, LED streetlight drivers, and PLC output stages requiring stable component supply across multi-year production cycles.

Supply support for STP21NM60ND 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, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The STP21NM60ND belongs to ST's SuperMESH™ III power MOSFET family, engineered specifically for high-efficiency, high-reliability offline power conversion in industrial and infrastructure applications demanding ruggedness and long-term parametric stability.

FAQ

What is the maximum continuous drain current rating for STP21NM60ND at 100 °C case temperature?

The STP21NM60ND supports 14 A continuous drain current at T_C = 100 °C, as specified in the Absolute Maximum Ratings table of its official datasheet (Doc ID 15202, Rev 5). This derating reflects thermal limits of the TO-220 package under real-world PCB heatsinking conditions, not silicon capability alone.

Does STP21NM60ND require a negative gate voltage for reliable turn-off in half-bridge configurations?

No. The STP21NM60ND has a gate threshold voltage range of 2–4 V and exhibits no significant Miller plateau instability. A 0 V gate return (i.e., no negative bias) is sufficient for clean turn-off when driven with a 10 V logic signal and properly sized gate resistor (typically 10–47 Ω).

Can STP21NM60ND replace STW21NM60 in existing designs?

Yes - STP21NM60ND and STW21NM60 share identical electrical specifications, thermal ratings, and pinout. The only difference is package: STP uses TO-220AB (insulated tab), while STW uses TO-247 (non-insulated tab). Replacement requires verifying heatsink isolation requirements and mechanical mounting compatibility.

Is STP21NM60ND qualified for automotive applications per AEC-Q101?

No. STP21NM60ND is not AEC-Q101 qualified and is intended for industrial and commercial applications only. ST offers AEC-Q101 variants such as STL21N60M3 in DPAK for automotive use, which include enhanced HTGB and temperature cycling validation beyond standard industrial qualification.

STP21NM60ND Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: FDmesh™ II

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 600 V

Current - Continuous Drain (Id) @ 25°C:: 17A (Tc)

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

Rds On (Max) @ Id, Vgs:: 220mOhm @ 8.5A, 10V

Vgs(th) (Max) @ Id:: 5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 60 nC @ 10 V

Vgs (Max):: ±25V

Input Capacitance (Ciss) (Max) @ Vds:: 1800 pF @ 50 V

FET Feature:: -

Power Dissipation (Max):: 140W (Tc)

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STP21NM60ND FAQ

1.How can I place an order for STP21NM60ND through Aetrix?

Please submit a Request for Quotation (RFQ) for STP21NM60ND 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 STP21NM60ND reliable?

The price and inventory of STP21NM60ND are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP21NM60ND is usually 5 days.

3.What payment methods are accepted for STP21NM60ND?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP21NM60ND transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP21NM60ND?

STP21NM60ND orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP21NM60ND 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 STP21NM60ND?

For technical support, including STP21NM60ND datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP21NM60ND requirements.

6.How does Aetrix verify that STP21NM60ND is sourced from the original manufacturer or authorized distributors?

All STP21NM60ND 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 STP21NM60ND meets industry standards.

7.What is the process for return or replacement of STP21NM60ND?

All STP21NM60ND units undergo pre-shipment inspection (PSI). If there is an issue with STP21NM60ND, 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 STP21NM60ND part is unused and in its original packaging.

Return procedure for STP21NM60ND:

1.Submit a request within 90 days.

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

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