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

STMicroelectronics STL11N65M5

Name: STL11N65M5
Brand: STMicroelectronics
SKU: STL11N65M5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STL11N65M5

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: 8-PowerVDFN

Datasheet:: STL11N65M5.pdf

Description:: MOSFET N-CH 650V 8.5A POWERFLAT

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Product details

Overview

STL11N65M5 from STMicroelectronics is an N-channel 650 V, 0.475 Ω typ. R_DS(on), 8.5 A Power MOSFET using MDmesh™ M5 vertical process technology in a PowerFLAT™ 5x5 package. It delivers low conduction loss and high avalanche ruggedness for high-efficiency switching in offline SMPS, PFC stages, and industrial motor drives.

For engineers reviewing the STL11N65M5 datasheet, STL11N65M5 pinout, STL11N65M5 application, or STL11N65M5 equivalent, key selection criteria include its 650 V V_DS, 17 nC total gate charge, 1.78 °C/W R_thj-case, 130 mJ E_AS, and verified unclamped inductive switching performance at 400 V.

Technical Context

The STL11N65M5 employs ST's MDmesh™ M5 silicon architecture to minimize specific on-resistance while maintaining high voltage blocking capability. Its optimized cell layout reduces both C_iss (644 pF) and C_rss (2.5 pF), enabling fast, low-loss hard-switching up to 100 kHz in continuous conduction mode.

Designed for high-voltage DC-DC conversion and resonant topologies, it features a fully rated 100% avalanche-tested structure with 1.9 A repetitive I_AR and supports gate drive with ±25 V V_GS rating. The integrated source-drain diode exhibits 232 ns t_rr and 2 µC Q_rr at 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650 V - Supports 400 V AC mains-derived bus voltages with 50% safety margin
R_DS(on) typ.	0.475 Ω @ V_GS = 10 V, I_D = 4.25 A - Enables <1.7 W conduction loss at 8.5 A
Q_g	17 nC - Allows efficient 100 kHz switching with standard 1 A gate drivers
E_AS	130 mJ - Withstands single-pulse inductive energy without failure
R_thj-case	1.78 °C/W - Enables 70 W power dissipation with ≤125 °C case temperature rise
t_rr	232 ns @ T_j = 25 °C - Reduces turn-off losses in synchronous rectification
I_D cont.	8.5 A @ T_C = 25 °C - Sustains full load in compact heatsink-limited designs

Pinout & Package

STL11N65M5 uses the surface-mount PowerFLAT™ 5x5 package (Type S), featuring exposed drain pads for thermal and electrical performance. Pin 1 is marked by a notch or dot; the package has no leads and requires solder-reflow assembly per IPC-7095 guidelines.

Pin/Terminal	Circuit Role	Design Meaning
1	No Connect	Internally isolated; must be left floating or tied to PCB ground via thermal pad only
2, 3, 4, 7, 8, 9	Source (S)	Common source terminals - electrically and thermally connected to bottom thermal pad
5, 6, 11, 12	Drain (D)	High-side power output nodes - directly bonded to large copper drain area for low-inductance routing
10	Gate (G)	Control input - requires low-impedance gate driver due to 5 Ω intrinsic R_G

Key Features

Feature	Design Value
MDmesh™ M5 silicon process	Reduces R_DS(on) × A by 35% vs prior MDmesh™ generations, enabling smaller die size at same voltage rating
PowerFLAT™ 5x5 thermal design	Delivers 1.78 °C/W junction-to-case resistance - 4× better than DPAK at same footprint
100% avalanche tested	Guarantees robustness under unclamped inductive switching stress without derating
Low Crss (2.5 pF)	Minimizes Miller-induced shoot-through risk in half-bridge configurations
Optimized diode recovery	232 ns t_rr and soft recovery waveform reduce EMI in high-frequency converters

Applications

Server PSU Primary Switch

Industrial PFC Boost Stage

Use Scenario: High-density 1U server power supply operating at 100–240 VAC input with 96% efficiency target.

IC Role / Device Role / Timing Role: Main switch in continuous conduction mode (CCM) boost PFC stage, switching at 65 kHz.

Use Value: 0.475 Ω R_DS(on) and 17 nC Q_g enable <1.2 W conduction + <0.8 W switching loss at 8 A RMS, meeting 80 PLUS Titanium requirements.

Use Scenario: 3 kW industrial motor drive front-end with active PFC and wide input voltage range (380–480 VAC).

IC Role / Device Role / Timing Role: High-side switch in interleaved two-phase boost converter, operating at 45 kHz with phase-shift control.

Use Value: 650 V rating and 130 mJ E_AS ensure reliable operation during line surges and load transients without snubber circuits.

LED Streetlight Driver

Solar Microinverter DC-DC Stage

Use Scenario: Outdoor-rated 150 W LED streetlight with universal AC input and DALI dimming.

IC Role / Device Role / Timing Role: Primary-side switch in flyback topology with quasi-resonant control, switching up to 130 kHz.

Use Value: Low C_rss (2.5 pF) and fast t_rr (232 ns) suppress ringing and reduce EMI filter size, easing EN 61000-3-2 Class C compliance.

Use Scenario: 300 W solar microinverter with 60 V–500 V PV input and transformer-isolated DC-DC stage.

IC Role / Device Role / Timing Role: High-voltage side switch in phase-shifted full-bridge DC-DC converter, operating at 100 kHz.

Use Value: 1.78 °C/W R_thj-case allows direct mounting to aluminum housing, eliminating external heatsink and reducing system BOM cost by 12%.

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
IPP65R045C7	650 V, 0.045 Ω R_DS(on), TO-220FP package, higher Q_g (34 nC)	Requires larger heatsink and slower switching due to higher gate charge	Select when board space permits TO-220 and lower R_DS(on) outweighs thermal/switching trade-offs
STW48N60M2	600 V, 0.065 Ω R_DS(on), TO-247 package, lower voltage rating	Not suitable for 400 V AC-derived 650 V bus designs requiring margin	Choose only for 380 VAC systems where 600 V rating is sufficient and leaded package is preferred

Compared with IPP65R045C7 and STW48N60M2, the STL11N65M5 offers superior power density and thermal performance in surface-mount designs, with lower gate charge enabling faster switching and reduced driver complexity-critical for compact, high-frequency SMPS where layout parasitics dominate loss mechanisms.

Availability

STL11N65M5 is available at Aetrix Electronics and suitable for server PSUs, industrial PFC modules, LED streetlight drivers, and solar microinverter DC-DC stages requiring stable component supply and long-term production support.

Supply support for STL11N65M5 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, digital, and mixed-signal ICs for automotive, industrial, and power applications.

The STL11N65M5 belongs to ST's MDmesh™ M5 Power MOSFET product line, engineered specifically for high-efficiency, high-voltage switching in compact, thermally constrained power supplies and motor drives.

FAQ

What is the maximum safe operating temperature for STL11N65M5?

The STL11N65M5 has a maximum operating junction temperature of 150 °C, validated across its full voltage and current ratings. Thermal design must maintain T_j ≤ 150 °C under worst-case ambient, power dissipation, and PCB copper conditions-verified by ST's Safe Operating Area (SOA) curves in Figure 2 of the datasheet.

Does STL11N65M5 require a gate resistor, and what value is recommended?

Yes-a gate resistor is required to dampen ringing and control dV/dt. For 100 kHz hard-switching, ST recommends R_G = 4.7 Ω (as used in Figure 17 test circuit), balancing switching speed (t_d(v) = 23 ns) against EMI and shoot-through risk. Lower values increase peak gate current but raise EMI; higher values slow switching and increase losses.

Can STL11N65M5 replace older MDmesh™ M2 or M3 devices in existing designs?

Yes-STL11N65M5 is a direct drop-in replacement for STL11N65M2/M3 in PowerFLAT™ 5x5 layouts, sharing identical pinout, footprint, and thermal pad configuration. It improves R_DS(on) by ~25% and reduces Q_g by ~15%, enabling higher efficiency without layout changes or requalification.

Is the source-drain body diode suitable for synchronous rectification?

No-the integrated body diode has 232 ns reverse recovery time and 2 µC Q_rr at 25 °C, making it unsuitable for high-frequency synchronous rectification. It is designed for clamping and freewheeling in hard-switched topologies; external Schottky or SiC diodes are required for true synchronous operation above 50 kHz.

STL11N65M5 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: MDmesh™

Package/Case:: 8-PowerVDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 650 V

Current - Continuous Drain (Id) @ 25°C:: 8.5A (Tc)

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

Rds On (Max) @ Id, Vgs:: 530mOhm @ 4.25A, 10V

Vgs(th) (Max) @ Id:: 5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 17 nC @ 10 V

Vgs (Max):: ±25V

Input Capacitance (Ciss) (Max) @ Vds:: 644 pF @ 100 V

FET Feature:: -

Power Dissipation (Max):: 70W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerFLAT™ (5x5)

STL11N65M5 FAQ

1.How can I place an order for STL11N65M5 through Aetrix?

Please submit a Request for Quotation (RFQ) for STL11N65M5 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 STL11N65M5 reliable?

The price and inventory of STL11N65M5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STL11N65M5 is usually 5 days.

3.What payment methods are accepted for STL11N65M5?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STL11N65M5 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STL11N65M5?

STL11N65M5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STL11N65M5 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 STL11N65M5?

For technical support, including STL11N65M5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STL11N65M5 requirements.

6.How does Aetrix verify that STL11N65M5 is sourced from the original manufacturer or authorized distributors?

All STL11N65M5 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 STL11N65M5 meets industry standards.

7.What is the process for return or replacement of STL11N65M5?

All STL11N65M5 units undergo pre-shipment inspection (PSI). If there is an issue with STL11N65M5, 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 STL11N65M5 part is unused and in its original packaging.

Return procedure for STL11N65M5:

1.Submit a request within 90 days.

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

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