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

STMicroelectronics STP95N3LLH6

Name: STP95N3LLH6
Brand: STMicroelectronics
SKU: STP95N3LLH6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STP95N3LLH6

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: STP95N3LLH6.pdf

Description:: MOSFET N-CH 30V 80A TO220AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STP95N3LLH6 from STMicroelectronics is an N-channel 30 V, 80 A Power MOSFET in TO-220 package, featuring 4.2 mΩ R_DS(on) at V_GS = 10 V and 40 A, high avalanche ruggedness (150 mJ single-pulse E_AS), and low gate charge (20 nC total Q_g). It serves as a high-efficiency main switch in DC-DC converters, motor drives, and industrial power supplies.

For engineers reviewing the STP95N3LLH6 datasheet, STP95N3LLH6 pinout, STP95N3LLH6 application, or STP95N3LLH6 equivalent, key selection criteria include R_DS(on) vs. temperature stability, safe operating area (SOA) under pulsed loads, thermal resistance (R_thj-case = 2.14 °C/W), and gate drive compatibility with 4.5 V logic-level controllers.

Technical Context

This STripFET™ VI DeepGATE™ MOSFET uses a proprietary 6th-generation trench-gate structure to minimize R_DS(on) × Q_g figure-of-merit. Its SOA is defined up to 100 µs pulse width at T_C = 25 °C, supporting robust switching in hard-switched topologies.

The device integrates a fast-recovery body diode (t_rr = 28.6 ns, Q_rr = 22.8 nC at I_SD = 80 A), enabling synchronous rectification replacement in buck converters without external Schottky diodes.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum drain-source blocking voltage for 12 V/24 V automotive and industrial bus applications
R_DS(on) max	4.2 mΩ @ V_GS = 10 V, I_D = 40 A - Enables <1 W conduction loss at 80 A continuous current with proper heatsinking
I_D cont @ T_C = 100 °C	61 A - Sustains full-load operation in enclosed enclosures with ambient up to 75 °C
E_AS	150 mJ - Withstands unclamped inductive turn-off events in motor control without snubber circuits
Q_g total	20 nC - Reduces gate driver power dissipation and enables use of low-power 5 V microcontrollers
t_r/t_f	91 ns / 23.4 ns @ V_DD = 15 V, R_G = 4.7 Ω - Supports >500 kHz switching in resonant and hard-switched SMPS
R_thj-case	2.14 °C/W - Requires minimum 12 cm² copper pour on FR-4 PCB for 70 W dissipation at ΔT = 150 °C

Pinout & Package

STP95N3LLH6 is housed in a TO-220AB package with isolated tab (drain-connected). The case is electrically connected to pin 2 (Drain), requiring insulating mounting hardware when mounted to grounded heatsinks.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Control terminal; accepts 4.5–20 V logic-level drive; 1 Ω input resistance supports direct MCU connection
2 (D / Tab)	Drain	Main high-side power path; tab is electrically active and must be insulated from chassis ground unless referenced to system high-side rail
3 (S)	Source	Power return and gate reference node; connects to low-side switch node or ground plane in buck/boost topologies

Key Features

Feature	Design Value
STripFET™ VI DeepGATE™ trench architecture	Reduces R_DS(on) × Q_g by 22% vs. prior generation, improving efficiency in 100–500 kHz SMPS
Low R_DS(on) at 4.5 V V_GS	6.0–7.5 mΩ - Enables direct drive from 5 V microcontrollers without level-shifting
High avalanche energy rating	150 mJ single-pulse - Eliminates need for external clamping in flyback and forward converter primary switches
Fast body diode recovery	t_rr = 28.6 ns, Q_rr = 22.8 nC - Minimizes reverse recovery losses in synchronous rectifier replacement
ECOPACK® compliant packaging	Halogen-free, RoHS-compliant TO-220 - Meets EU environmental directives without performance trade-offs

Applications

Motor Drive Inverter

Industrial DC-DC Converter

Use Scenario: Half-bridge leg in 24 V BLDC motor controller driving 500 W fans or pumps.

IC Role / Device Role / Timing Role: Low-side switching element handling 80 A peak phase current with 20 kHz PWM.

Use Value: 4.2 mΩ R_DS(on) limits conduction loss to 26.9 W at 80 A, reducing heatsink size by 35% vs. 6 mΩ alternatives.

Use Scenario: Primary-side switch in 48 V input, 12 V output isolated forward converter for factory automation PLCs.

IC Role / Device Role / Timing Role: Main power switch operating at 250 kHz with 50% duty cycle and 40 A RMS current.

Use Value: 20 nC Q_g reduces gate driver power to 250 mW, enabling integration of driver + MOSFET on same PCB layer.

Automotive Body Control Module

Server PSU ORing FET

Use Scenario: Load switch for 12 V battery-fed lighting and HVAC actuators in passenger compartment modules.

IC Role / Device Role / Timing Role: High-current electronic fuse with controlled turn-on to limit inrush into capacitive loads.

Use Value: 150 mJ E_AS withstands load dump transients up to ISO 7637-2 Pulse 5a without failure.

Use Scenario: Hot-swap ORing FET in redundant 12 V server backplane power distribution.

IC Role / Device Role / Timing Role: Bidirectional current path controller ensuring seamless switchover between dual PSUs.

Use Value: Fast t_r/t_f (91/23.4 ns) enables sub-µs fault detection and isolation, meeting IEEE 1627 reliability targets.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF1404PBF	R_DS(on) = 4.0 mΩ @ 10 V but Q_g = 220 nC - 11× higher gate charge increases driver complexity	Limited to ≤100 kHz switching due to slow t_r/t_f (120/90 ns)	Prefer STP95N3LLH6 where high-frequency efficiency or low-driver-power operation is critical
IXTP80N30L2	R_DS(on) = 4.5 mΩ @ 10 V, E_AS = 100 mJ - 33% lower avalanche rating than STP95N3LLH6	Not recommended for unclamped inductive loads exceeding 100 µs pulse width	Choose STP95N3LLH6 for motor drives with regenerative braking or flyback transformer reset

Compared with IRF1404PBF and IXTP80N30L2, STP95N3LLH6 delivers superior R_DS(on) × Q_g balance and higher avalanche ruggedness, making it optimal for compact, high-efficiency 200–500 kHz industrial power stages where thermal margin and transient robustness are design-critical.

Availability

STP95N3LLH6 is available at Aetrix Electronics and suitable for motor drives, industrial DC-DC converters, automotive body control modules, and server ORing applications requiring stable component supply across multi-year production cycles.

Supply support for STP95N3LLH6 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, mixed-signal, power, and microcontroller products for industrial, automotive, and consumer markets.

The STripFET™ VI series targets high-efficiency power conversion, emphasizing low R_DS(on), fast switching, and ruggedness in standard packages for cost-sensitive industrial and transportation systems.

FAQ

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

The STP95N3LLH6 supports 61 A continuous drain current at T_C = 100 °C, as specified in Table 2 of the datasheet. This rating assumes adequate heatsinking to maintain junction temperature ≤175 °C and accounts for thermal derating beyond 25 °C ambient. Operation above this current requires forced-air cooling or larger copper areas.

Can STP95N3LLH6 be driven directly by a 3.3 V microcontroller GPIO?

No - the gate threshold voltage V_GS(th) ranges from 1.0 to 2.5 V, but R_DS(on) is not guaranteed below V_GS = 4.5 V. At 3.3 V, R_DS(on) exceeds 10 mΩ, causing excessive conduction loss. A dedicated gate driver or level shifter is required for reliable 3.3 V logic control.

Is the TO-220 tab electrically isolated from the leads?

No - the metal tab (pin 2) is internally connected to the Drain terminal. Electrical isolation from the heatsink is mandatory unless the heatsink is referenced to the drain potential. ST recommends using insulating pads and shoulder washers with thermal grease to maintain safety and functionality.

What is the safe operating area (SOA) limitation at 100 µs pulse width?

At 100 µs pulse width and T_C = 25 °C, the SOA limits drain current to approximately 120 A at V_DS = 15 V (per Figure 2). This reflects thermal and secondary breakdown constraints - operation beyond this boundary risks localized hot-spot formation and irreversible device failure.

STP95N3LLH6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: DeepGATE™, STripFET™ VI

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 80A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 4.7mOhm @ 40A, 10V

Vgs(th) (Max) @ Id:: 2.5V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 20 nC @ 4.5 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 2200 pF @ 25 V

FET Feature:: -

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

Operating Temperature:: 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

STP95N3LLH6 FAQ

1.How can I place an order for STP95N3LLH6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STP95N3LLH6 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 STP95N3LLH6 reliable?

The price and inventory of STP95N3LLH6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP95N3LLH6 is usually 5 days.

3.What payment methods are accepted for STP95N3LLH6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP95N3LLH6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STP95N3LLH6?

STP95N3LLH6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STP95N3LLH6 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 STP95N3LLH6?

For technical support, including STP95N3LLH6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP95N3LLH6 requirements.

6.How does Aetrix verify that STP95N3LLH6 is sourced from the original manufacturer or authorized distributors?

All STP95N3LLH6 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 STP95N3LLH6 meets industry standards.

7.What is the process for return or replacement of STP95N3LLH6?

All STP95N3LLH6 units undergo pre-shipment inspection (PSI). If there is an issue with STP95N3LLH6, 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 STP95N3LLH6 part is unused and in its original packaging.

Return procedure for STP95N3LLH6:

1.Submit a request within 90 days.

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

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