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

STMicroelectronics STD96N3LLH6

Name: STD96N3LLH6
Brand: STMicroelectronics
SKU: STD96N3LLH6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STD96N3LLH6

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: STD96N3LLH6.pdf

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

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Product details

Overview

STD96N3LLH6 from STMicroelectronics is an N-channel 30 V, 80 A Power MOSFET in DPAK (TO-252) package, featuring 0.0037 Ω R_DS(on) at V_GS = 10 V, 150 mJ single-pulse avalanche energy, and high thermal ruggedness (T_j = 175 °C). It serves as a main power switch in automotive DC-DC converters and motor control stages where low conduction loss and robust unclamped inductive switching are required.

For engineers reviewing the STD96N3LLH6 datasheet, STD96N3LLH6 pinout, STD96N3LLH6 application, or STD96N3LLH6 equivalent, key selection criteria include R_DS(on) vs. gate drive voltage (4.5 V/5.5 V/10 V), safe operating area under pulsed ID_M = 320 A, junction-to-case thermal resistance (2.14 °C/W), and DPAK footprint compatibility with FR-4 PCBs.

Technical Context

This MOSFET implements ST's STripFET™ VI DeepGATE™ architecture, combining optimized trench cell density with a reinforced gate structure to minimize Q_g × R_DS(on) product-critical for high-frequency synchronous rectification. Its low Crss (280 pF) and fast switching (t_d(off) = 24.5 ns typ.) support >100 kHz operation in buck converters.

The device is characterized for automotive-grade reliability: guaranteed operation from –55 °C to 175 °C, 150 mJ unclamped inductive energy rating at T_j = 25 °C with I_AV = 55 A, and 275 °C lead-soldering tolerance. Its body diode exhibits t_rr = 28.6 ns and Q_rr = 22.8 nC under 100 A/µs di/dt conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage compatible with 24 V automotive systems and 12 V battery rails.
R_DS(on)	0.0037 Ω @ V_GS = 10 V - Enables <1.2 W conduction loss at 80 A continuous drain current (T_C = 25 °C).
I_D	80 A continuous @ T_C = 25 °C - Supports high-current load switching without external heatsinking in compact DPAK layout.
E_AS	150 mJ - Withstands repetitive unclamped inductive turn-off events in motor drive H-bridge legs.
Q_g	20 nC - Low total gate charge reduces driver power loss and enables efficient 5 V logic-level gate drive.
R_th(j–case)	2.14 °C/W - Allows direct mounting to copper pour or heatsink for thermal management in space-constrained modules.
t_r/t_f	91 ns / 23.4 ns - Fast edge rates minimize switching transition losses in high-frequency SMPS designs.

Pinout & Package

The STD96N3LLH6 uses a DPAK (TO-252) surface-mount package with exposed drain tab for thermal and electrical connection. Pin 1 is Gate (G), Pin 2 is Drain (D, connected to tab), and Pin 3 is Source (S).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (G)	Gate terminal	Controls channel conduction; requires ≤±20 V bias; low input capacitance (C_iss = 2200 pF) eases driver design.
Pin 2 (D)	Drain terminal (tab-connected)	High-current output node; electrically and thermally coupled to PCB copper pour via soldered tab for R_th(j–pcb) = 35 °C/W.
Pin 3 (S)	Source terminal	Reference node for gate drive; connects to low-side return path; supports Kelvin source sensing in precision current monitoring.

Key Features

Feature	Design Value
STripFET™ VI DeepGATE™ cell architecture	Reduces R_DS(on) × Q_g product by 22% vs. prior generation-enabling higher efficiency in 48 V–12 V DC-DC converters.
High avalanche ruggedness (E_AS = 150 mJ)	Eliminates need for external snubbers in brushed DC motor commutation circuits operating up to 55 A inductive current.
Low gate drive power requirement	Q_gs + Q_gd = 15.7 nC ensures <1.5 mW average gate power at 200 kHz switching with 5 V drive-reducing MCU GPIO loading.
Automotive-qualified thermal performance	T_j(max) = 175 °C and T_stg = –55 to 175 °C enable under-hood deployment in engine control units without derating.
Optimized body diode recovery	Q_rr = 22.8 nC and I_RRM = 1.6 A reduce reverse recovery loss and EMI in synchronous rectifier applications.

Applications

Automotive Body Control Module (BCM)

12 V Automotive DC-DC Converter

Use Scenario: High-side load switching for headlight, fog lamp, and HVAC blower control in centralized BCMs.

IC Role / Device Role / Timing Role: Main power switch handling 60–80 A peak loads with PWM dimming and short-circuit protection.

Use Value: 0.0037 Ω R_DS(on) limits resistive heating to <1.5 W at full load, enabling compact PCB layout without forced air cooling.

Use Scenario: Synchronous rectifier in 12 V output stage of 48 V–12 V bidirectional buck converter for mild hybrid vehicles.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier operating at 150–200 kHz with 5 V gate drive from controller IC.

Use Value: Low Q_g (20 nC) and fast t_f (23.4 ns) minimize dead-time losses and improve light-load efficiency by >3% vs. Schottky alternatives.

Electric Power Steering (EPS) Motor Driver

Industrial 24 V DC Motor Starter

Use Scenario: Half-bridge leg in 3-phase inverter driving brushless EPS assist motor (24 V nominal, 80 A peak).

IC Role / Device Role / Timing Role: High-current switching element subjected to repeated unclamped inductive turn-off during torque transients.

Use Value: 150 mJ E_AS rating ensures reliable operation without external clamping diodes during 55 A fault currents.

Use Scenario: Direct-on-line starter for industrial 24 V DC motors used in conveyor systems and pumps.

IC Role / Device Role / Timing Role: Single-pole high-side switch controlling motor start-up surge (320 A pulsed) and steady-state run current (61 A @ T_C = 100 °C).

Use Value: R_th(j–case) = 2.14 °C/W allows direct heatsink mounting to sustain 61 A continuous current without thermal shutdown.

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
IRF1404ZPBF	R_DS(on) = 0.0040 Ω @ 10 V; Q_g = 110 nC; D_2PAK package	Higher gate charge increases driver complexity; larger package requires more board area	Select when higher avalanche energy (660 mJ) is prioritized over switching speed and board space.
STB96NF03L	R_DS(on) = 0.0032 Ω @ 10 V; 30 V rating; TO-220FP package	Through-hole mounting; no exposed drain tab; R_th(j–case) = 2.5 °C/W	Choose for legacy through-hole assembly or when lower R_DS(on) justifies larger thermal footprint and manual rework capability.

Compared with IRF1404ZPBF and STB96NF03L, STD96N3LLH6 delivers superior R_DS(on) × Q_g trade-off in surface-mount DPAK, enabling smaller gate drivers, faster switching, and better thermal coupling to PCB-ideal for space- and efficiency-critical automotive modules.

Availability

STD96N3LLH6 is available at Aetrix Electronics and suitable for automotive body control modules, 12 V DC-DC converters, and electric power steering motor drivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STD96N3LLH6 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

STD96N3LLH6 belongs to ST's STripFET™ VI Power MOSFET product line, engineered specifically for high-efficiency, high-reliability automotive power switching applications-including BCMs, EPS, and 48 V/12 V DC-DC conversion-where low R_DS(on), fast switching, and rugged avalanche performance are critical.

FAQ

Is STD96N3LLH6 qualified for automotive applications per AEC-Q101?

Yes. STD96N3LLH6 is AEC-Q101 qualified and rated for automotive use, with guaranteed operation from –55 °C to 175 °C junction temperature, 150 mJ avalanche energy, and 275 °C soldering tolerance-meeting requirements for under-hood and chassis-mounted modules.

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

The maximum continuous drain current is 61 A at T_C = 100 °C, as specified in Table 2 of the datasheet. This reflects thermal derating due to reduced heat dissipation capacity at elevated case temperatures, with a derating factor of 0.47 W/°C beyond 25 °C.

Can STD96N3LLH6 be driven directly from a 3.3 V microcontroller GPIO?

No. At V_GS = 3.3 V, R_DS(on) rises significantly (not characterized in datasheet); minimum recommended gate drive is 4.5 V for usable on-resistance (0.0055 Ω typ.). A dedicated gate driver or level-shifter is required for reliable 3.3 V logic interface.

Does the DPAK package require thermal vias under the drain tab?

Yes. To achieve the specified R_th(j–pcb) = 35 °C/W, the datasheet specifies mounting on an FR-4 board with 1 inch² of 2 oz copper. Thermal vias (≥8×0.3 mm diameter, filled or plated) beneath the drain tab are essential to transfer heat efficiently to internal or backside copper planes.

STD96N3LLH6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: DeepGATE™, STripFET™ VI

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Active

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):: 5.5V, 10V

Rds On (Max) @ Id, Vgs:: 4.2mOhm @ 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:: Surface Mount

Supplier Device Package:: DPAK

STD96N3LLH6 FAQ

1.How can I place an order for STD96N3LLH6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STD96N3LLH6 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 STD96N3LLH6 reliable?

The price and inventory of STD96N3LLH6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STD96N3LLH6 is usually 5 days.

3.What payment methods are accepted for STD96N3LLH6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STD96N3LLH6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STD96N3LLH6?

STD96N3LLH6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STD96N3LLH6 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 STD96N3LLH6?

For technical support, including STD96N3LLH6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STD96N3LLH6 requirements.

6.How does Aetrix verify that STD96N3LLH6 is sourced from the original manufacturer or authorized distributors?

All STD96N3LLH6 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 STD96N3LLH6 meets industry standards.

7.What is the process for return or replacement of STD96N3LLH6?

All STD96N3LLH6 units undergo pre-shipment inspection (PSI). If there is an issue with STD96N3LLH6, 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 STD96N3LLH6 part is unused and in its original packaging.

Return procedure for STD96N3LLH6:

1.Submit a request within 90 days.

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

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