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

STMicroelectronics STD12NF06L-1

Name: STD12NF06L-1
Brand: STMicroelectronics
SKU: STD12NF06L-1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STD12NF06L-1

Manufacturer:: STMicroelectronics

Category:: FETs, MOSFETs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: STD12NF06L-1.pdf

Description:: MOSFET N-CH 60V 12A IPAK

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Product details

Overview

STD12NF06L-1 from STMicroelectronics is an N-channel enhancement-mode Power MOSFET in IPAK (TO-251) package, rated for 60 V V_DS, 0.07 Ω typ. R_DS(on) at V_GS = 10 V, and 12 A continuous drain current at T_C = 25 °C. It features low gate charge (7.5 nC typ.), high dv/dt immunity (15 V/ns), and integrated source-drain diode with 50 ns reverse recovery time - optimized for primary-side switching in isolated DC-DC converters used in telecom and computing power supplies.

For engineers reviewing the STD12NF06L-1 datasheet, STD12NF06L-1 pinout, STD12NF06L-1 application, or STD12NF06L-1 equivalent, key selection criteria include R_DS(on) at 5 V drive, unclamped inductive switching robustness (E_AS = 100 mJ), thermal resistance (R_thj-case = 5 °C/W), and SOA compliance at high dv/dt conditions.

Technical Context

This device employs ST's STripFET™ II process to minimize input capacitance (C_iss = 350 pF) and total gate charge (Q_g = 7.5–10 nC), enabling fast switching (t_r = 35 ns, t_f = 13 ns) with reduced driver loss. Its rugged body diode supports synchronous rectification and flyback recovery in hard-switched topologies.

The MOSFET operates within a junction temperature range of –55 °C to 175 °C and sustains pulsed drain currents up to 48 A under SOA-limited conditions. Its 15 V/ns dv/dt rating ensures reliable operation in noisy, high-speed switching environments without spurious turn-on.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	60 V - Maximum blocking voltage for primary-side switch in ≤48 V input DC-DC converters
R_DS(on) (typ.)	0.07 Ω @ V_GS = 10 V - Enables <1 W conduction loss at 12 A, critical for high-efficiency telecom PSUs
Q_g (typ.)	7.5 nC - Reduces gate drive power and enables use with low-current controllers (e.g., UC384x)
E_AS	100 mJ - Supports unclamped inductive switching without avalanche failure in flyback/forward converters
t_r/t_f	35 ns / 13 ns - Minimizes switching transition losses at 300–500 kHz operating frequencies
T_J max	175 °C - Allows operation in thermally constrained enclosures without derating below full load

Pinout & Package

STD12NF06L-1 uses the IPAK (TO-251) package - a surface-mount variant of TO-251 with isolated tab for PCB thermal relief and simplified heatsinking. The package has three leads: Gate (G), Drain (D), Source (S), with Drain internally connected to the exposed metal tab for low-inductance, high-current path routing.

Pin/Terminal	Circuit Role	Design Meaning
G	Gate control terminal	Receives PWM signal; low Q_g allows direct drive from standard logic-level controllers
D	Drain (connected to tab)	Main high-side current path; tab must be electrically isolated and thermally coupled to heatsink
S	Source (power return)	Reference node for gate drive; connects to low-side switch or ground plane with minimal loop inductance

Key Features

Feature	Design Value
STripFET™ II process	Reduces C_iss by ~30% vs. first-gen STripFET, lowering EMI and improving gate drive efficiency
High dv/dt immunity	15 V/ns rating prevents false triggering during fast voltage transients in high-frequency converters
Low R_DS(on) at 5 V drive	0.08–0.10 Ω enables use with 5 V microcontrollers or logic-level drivers without level-shifting
Robust body diode	50 ns t_rr, 65 nC Q_rr - reduces snubber loss and EMI in discontinuous conduction mode (DCM) flyback

Applications

Telecom DC-DC Converters

Server PSU Primary Switch

Use Scenario: Primary-side switch in 36–75 V input isolated forward/flyback converters delivering 100–500 W to telecom line cards.

IC Role / Device Role / Timing Role: High-voltage, high-current main switch handling full input power with minimal conduction and switching loss.

Use Value: 0.07 Ω R_DS(on) and 7.5 nC Q_g enable >92% efficiency at 400 kHz while maintaining SOA margin under transient loads.

Use Scenario: Main switching element in redundant 12 V/48 V intermediate bus converters inside 1U server PSUs.

IC Role / Device Role / Timing Role: Fast-turning, avalanche-rated power switch managing high peak currents during CPU burst loads.

Use Value: 100 mJ E_AS and 175 °C T_J max ensure reliability during output short-circuit events without external clamping.

Industrial PLC Power Modules

Embedded Computing Power Supplies

Use Scenario: Input-stage switch in wide-input (24–60 V) DC-DC modules powering I/O and communication subsystems in programmable logic controllers.

IC Role / Device Role / Timing Role: Rugged, thermally stable switch supporting extended ambient temperatures (–40 °C to +85 °C) and long service life.

Use Value: 5 °C/W R_thj-case allows direct mounting to aluminum chassis, eliminating need for discrete heatsinks in space-constrained designs.

Use Scenario: Compact, high-density buck converter switch in fanless embedded systems (e.g., edge AI gateways, medical imaging controllers).

IC Role / Device Role / Timing Role: Low-Q_g, logic-level-compatible MOSFET enabling integration with integrated controller ICs in 30 mm × 30 mm power stages.

Use Value: 0.08 Ω R_DS(on) @ 5 V drive eliminates gate driver IC, reducing BOM count and layout complexity.

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
IRFZ44NPBF	R_DS(on) = 0.028 Ω @ 10 V but higher Q_g (71 nC); no specified dv/dt rating	Better conduction loss at high V_GS, but unsuitable for high-dv/dt telecom environments due to lower immunity	Prefer STD12NF06L-1 where fast switching and noise immunity dominate over ultra-low R_DS(on)
STP12NF06L	Same die, TO-220 package; identical electrical specs but higher R_thj-case (3.5 °C/W vs. 5 °C/W)	Requires larger heatsink; not suitable for surface-mount-only assembly or space-constrained layouts	Choose STD12NF06L-1 for SMT production, thermal management via PCB copper, and automated placement

Compared with IRFZ44NPBF and STP12NF06L, STD12NF06L-1 uniquely balances low gate charge, high dv/dt immunity, and IPAK thermal performance - making it optimal for compact, high-reliability telecom and industrial DC-DC converters where layout density and noise resilience are critical.

Availability

STD12NF06L-1 is available at Aetrix Electronics and suitable for telecom power supplies, server intermediate bus converters, and industrial PLC power modules requiring stable component supply across multi-year production cycles.

Supply support for STD12NF06L-1 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, power, MCU, and sensor solutions for industrial, automotive, and communications markets.

STD12NF06L-1 belongs to ST's STripFET™ II Power MOSFET product line, engineered specifically for high-efficiency, high-reliability switching in isolated DC-DC converters where low gate charge and robust avalanche capability are essential.

FAQ

Is STD12NF06L-1 suitable for 5 V gate drive applications?

Yes. Its gate threshold voltage (V_GS(th)) ranges from 1 V to 2 V, and R_DS(on) is specified at 0.08–0.10 Ω with V_GS = 5 V and I_D = 6 A. This enables reliable enhancement-mode operation using standard 5 V logic or microcontroller outputs without gate boosting.

What is the maximum safe operating frequency for STD12NF06L-1?

Based on its switching times (t_r = 35 ns, t_f = 13 ns) and gate charge (7.5 nC), the device supports efficient operation up to 500 kHz in hard-switched topologies. Above this, switching losses increase significantly unless paralleled or operated in soft-switching configurations.

Does STD12NF06L-1 require a gate resistor for stability?

Yes. A gate resistor (typically 4.7–10 Ω) is recommended to dampen ringing caused by gate-drain capacitance (C_rss = 30 pF) and PCB inductance. The datasheet specifies switching times with R_G = 4.7 Ω, confirming its role in controlling dV/dt and EMI.

Can STD12NF06L-1 replace STP12NF06L in existing TO-220 designs?

No - direct replacement is not mechanically feasible. While electrically identical, STD12NF06L-1 uses IPAK (TO-251), which has different footprint, thermal pad layout, and soldering requirements. A board redesign is required to accommodate the surface-mount package and optimize thermal vias under the drain tab.

STD12NF06L-1 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STripFET™ II

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 60 V

Current - Continuous Drain (Id) @ 25°C:: 12A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 5V, 10V

Rds On (Max) @ Id, Vgs:: 100mOhm @ 6A, 10V

Vgs(th) (Max) @ Id:: 2V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 10 nC @ 5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 350 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 42.8W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: IPAK

STD12NF06L-1 FAQ

1.How can I place an order for STD12NF06L-1 through Aetrix?

Please submit a Request for Quotation (RFQ) for STD12NF06L-1 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 STD12NF06L-1 reliable?

The price and inventory of STD12NF06L-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STD12NF06L-1 is usually 5 days.

3.What payment methods are accepted for STD12NF06L-1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STD12NF06L-1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STD12NF06L-1?

STD12NF06L-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STD12NF06L-1 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 STD12NF06L-1?

For technical support, including STD12NF06L-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STD12NF06L-1 requirements.

6.How does Aetrix verify that STD12NF06L-1 is sourced from the original manufacturer or authorized distributors?

All STD12NF06L-1 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 STD12NF06L-1 meets industry standards.

7.What is the process for return or replacement of STD12NF06L-1?

All STD12NF06L-1 units undergo pre-shipment inspection (PSI). If there is an issue with STD12NF06L-1, 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 STD12NF06L-1 part is unused and in its original packaging.

Return procedure for STD12NF06L-1:

1.Submit a request within 90 days.

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

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