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

Infineon Technologies SPD25N06S2-40

Name: SPD25N06S2-40
Brand: Infineon Technologies
SKU: SPD25N06S2-40
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SPD25N06S2-40

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: SPD25N06S2-40.pdf

Description:: MOSFET N-CH 55V 29A TO252-3

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Product details

Overview

SPD25N06S2-40 from Infineon Technologies is an N-channel enhancement-mode power MOSFET optimized for high-efficiency switching in DC-DC converters and motor control. It features 55 V V_DS, 40 mΩ R_DS(on) at V_GS = 10 V and I_D = 13 A, 29 A continuous drain current at T_C = 25 °C, and 175 °C maximum junction temperature - enabling robust operation in automotive body electronics and industrial power supplies.

For engineers reviewing the SPD25N06S2-40 datasheet, SPD25N06S2-40 pinout, SPD25N06S2-40 application, or SPD25N06S2-40 equivalent, key selection criteria include its avalanche-rated capability (E_AS = 80 mJ), dv/dt ruggedness (6 kV/µs), low gate charge (Q_g = 13–18 nC), and TO252-3 package thermal performance (R_thJC = 1.45 K/W typ).

Technical Context

This OptiMOS™ device uses trench-gate superjunction technology to achieve low R_DS(on) × Q_g figure-of-merit while maintaining fast switching (t_r = 24–36 ns, t_f = 23–35 ns) and high dv/dt immunity. Its gate threshold voltage (V_GS(th) = 2.1–4 V) supports 4.5 V logic-level drive compatibility.

The integrated body diode exhibits low forward voltage (V_SD = 0.9–1.3 V at I_F = 25 A) and controlled reverse recovery (Q_rr = 40–50 nC, t_rr = 31–40 ns), reducing switching losses in synchronous rectification and half-bridge topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Maximum blocking voltage for 48 V nominal systems with margin against transients
R_DS(on)	40 mΩ max at V_GS = 10 V, I_D = 13 A - Enables <1.5 W conduction loss at 20 A
I_D (continuous)	29 A at T_C = 25 °C - Supports high-current load switching with minimal heatsinking
E_AS	80 mJ single-pulse avalanche energy - Withstands inductive turn-off stress without external snubbers
Q_g	13–18 nC - Low gate drive power requirement for 100–500 kHz PWM operation
dv/dt rating	6 kV/µs - Ensures reliable operation in noisy high-speed switching environments
T_j max	+175 °C - Qualified for under-hood automotive and industrial ambient conditions

Pinout & Package

SPD25N06S2-40 is housed in a surface-mount TO252-3 (DPAK) package with exposed drain pad for enhanced thermal dissipation. The package outline conforms to standard JEDEC MO-238A and provides 1.45 K/W typical junction-to-case thermal resistance.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Source terminal of N-channel MOSFET	Low-side return path; electrically tied to PCB ground plane for EMI control
Pin 2 (Gate)	Control input for channel conduction	High-impedance node requiring <100 Ω series gate resistor to damp ringing
Pin 3 (Drain)	Main current-carrying terminal (exposed pad)	Connected to high-voltage rail; requires ≥6 cm² copper pour for rated P_tot = 68 W

Key Features

Feature	Design Value
Avalanche-rated operation	Guaranteed single-pulse energy handling up to 80 mJ without degradation
175 °C junction rating	Enables use in sealed enclosures or high-ambient environments without derating
Low Q_gd/Q_g ratio	Q_gd = 6–8 nC / Q_g = 13–18 nC → improves Miller immunity and hard-switching robustness
Optimized body diode	Q_rr = 40–50 nC and soft recovery reduce voltage overshoot in freewheeling paths
TO252-3 thermal design	Exposed drain pad allows direct thermal coupling to PCB copper, achieving R_thJA = 50 K/W with 6 cm² cooling area

Applications

Automotive Body Control Module (BCM)

Industrial DC Motor Driver

Use Scenario: Driving 12 V solenoids, fans, and lamps in vehicle door modules and lighting clusters.

IC Role / Device Role / Timing Role: High-side or low-side switch controlling load current up to 25 A with PWM dimming.

Use Value: Avalanche rating eliminates need for external flyback diodes; 175 °C rating ensures reliability across full automotive temperature range.

Use Scenario: Half-bridge output stage in 24–48 V brushless DC motor controllers for pumps and conveyors.

IC Role / Device Role / Timing Role: Synchronous rectifier and active switching element in 20–100 kHz H-bridge inverters.

Use Value: Low R_DS(on) and fast switching minimize conduction and switching losses; low Q_rr reduces shoot-through risk during commutation.

Server PSU OR-ing FET

Telecom DC-DC Converter

Use Scenario: Hot-swap and redundancy management in 48 V intermediate bus architectures.

IC Role / Device Role / Timing Role: Reverse-polarity protected OR-ing switch with fast turn-on/turn-off for seamless power source handover.

Use Value: Low V_SD (0.9–1.3 V) minimizes forward drop; dv/dt rating prevents false triggering during bus transients.

Use Scenario: Primary-side synchronous rectifier in isolated 48 V–12 V or 48 V–5 V buck-derived converters.

IC Role / Device Role / Timing Role: Secondary-side power switch replacing Schottky diodes to improve efficiency above 10 A loads.

Use Value: R_DS(on) = 40 mΩ enables >95% efficiency at full load; SOA curve supports safe operation at 30 V V_DS and 25 A.

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
STP25NF50	500 V V_DS, 0.2 Ω R_DS(on), TO220 package - higher voltage rating but 5× higher on-resistance	Designed for offline SMPS; unsuitable for 48 V systems requiring low conduction loss	Select only if 500 V blocking is mandatory and thermal budget allows higher R_DS(on)
IRFZ44NPBF	55 V V_DS, 28 mΩ R_DS(on), TO220 - lower R_DS(on) but no avalanche rating and 150 °C T_j max	Limited to commercial-grade applications; not qualified for automotive or extended-temperature industrial use	Acceptable for cost-sensitive non-automotive designs where avalanche stress is absent

Compared with STP25NF50 and IRFZ44NPBF, SPD25N06S2-40 uniquely combines 55 V rating, 40 mΩ R_DS(on), 175 °C operation, and guaranteed avalanche capability - making it the only option qualified for thermally constrained, transient-heavy automotive and industrial switching nodes.

Availability

SPD25N06S2-40 is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, and telecom DC-DC converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for SPD25N06S2-40 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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and security ICs, with global manufacturing and R&D centers.

This device belongs to the OptiMOS™ 2nd generation power MOSFET product line, engineered specifically for high-efficiency, high-reliability switching in automotive and industrial power conversion systems.

FAQ

Is SPD25N06S2-40 suitable for 48 V battery-powered applications?

Yes. Its 55 V V_DS rating provides 7 V headroom above 48 V nominal systems, and its 175 °C T_j max supports operation in sealed battery enclosures. The device is qualified per AEC-Q101 for automotive use and handles load-dump transients up to 60 V when properly clamped.

What is the recommended gate resistor value for hard-switching at 200 kHz?

A 10–22 Ω series gate resistor is recommended to balance switching speed and gate oscillation damping. With Q_g = 13–18 nC and typical driver output impedance, this yields ~10–20 ns rise/fall times - aligning with the device's specified t_r/t_f and minimizing cross-conduction loss in bridge configurations.

Does SPD25N06S2-40 require a Kelvin source connection for precision current sensing?

No. It does not feature a dedicated Kelvin source pin. For accurate current monitoring, external shunt resistors or Hall-effect sensors are required. The standard three-pin TO252 layout integrates source directly into the package lead frame, limiting sense accuracy to ±5–10% under dynamic conditions.

Can SPD25N06S2-40 replace older OptiMOS devices like SPD20N06S2 in existing designs?

Yes, with minor layout review. Both share identical TO252-3 footprint and pinout, and SPD25N06S2-40 offers improved R_DS(on) (40 mΩ vs. 45 mΩ) and higher I_D (29 A vs. 25 A). Thermal pad soldering and gate drive strength should be verified, but no schematic changes are needed for drop-in replacement.

SPD25N06S2-40 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OptiMOS™

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

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 29A (Tc)

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

Rds On (Max) @ Id, Vgs:: 40mOhm @ 13A, 10V

Vgs(th) (Max) @ Id:: 4V @ 26µA

Gate Charge (Qg) (Max) @ Vgs:: 18 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 710 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 68W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TO252-3-11

SPD25N06S2-40 FAQ

1.How can I place an order for SPD25N06S2-40 through Aetrix?

Please submit a Request for Quotation (RFQ) for SPD25N06S2-40 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 SPD25N06S2-40 reliable?

The price and inventory of SPD25N06S2-40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPD25N06S2-40 is usually 5 days.

3.What payment methods are accepted for SPD25N06S2-40?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPD25N06S2-40 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SPD25N06S2-40?

SPD25N06S2-40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SPD25N06S2-40 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 SPD25N06S2-40?

For technical support, including SPD25N06S2-40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPD25N06S2-40 requirements.

6.How does Aetrix verify that SPD25N06S2-40 is sourced from the original manufacturer or authorized distributors?

All SPD25N06S2-40 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 SPD25N06S2-40 meets industry standards.

7.What is the process for return or replacement of SPD25N06S2-40?

All SPD25N06S2-40 units undergo pre-shipment inspection (PSI). If there is an issue with SPD25N06S2-40, 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 SPD25N06S2-40 part is unused and in its original packaging.

Return procedure for SPD25N06S2-40:

1.Submit a request within 90 days.

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

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