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

Infineon Technologies SPI15N65C3XKSA1

Name: SPI15N65C3XKSA1
Brand: Infineon Technologies
SKU: SPI15N65C3XKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SPI15N65C3XKSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-262-3 Long Leads, I2PAK, TO-262AA

Datasheet:: SPI15N65C3XKSA1.pdf

Description:: MOSFET N-CH 650V 15A TO262-3

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Product details

Overview

SPI15N65C3XKSA1 from Infineon Technologies is a 650 V, 15 A, N-channel CoolMOS™ C3 superjunction power MOSFET in TO-220FP package, featuring 450 mΩ R_DS(on) at V_GS = 10 V, 100% avalanche-rated operation, and optimized for hard-switched SMPS in industrial AC-DC adapters and auxiliary power supplies.

For engineers reviewing the SPI15N65C3XKSA1 datasheet, SPI15N65C3XKSA1 pinout, SPI15N65C3XKSA1 application, or SPI15N65C3XKSA1 equivalent, key selection criteria include its 650 V V_DSS, 15 A I_D (continuous), 450 mΩ R_DS(on), 100% EAS rating, and thermal resistance R_thJC = 1.2 K/W - critical for high-efficiency, convection-cooled industrial power stages.

Technical Context

This device employs Infineon's third-generation CoolMOS™ C3 technology, delivering reduced gate charge (Q_G = 27 nC) and output charge (Q_OSS = 38 nC) versus prior generations, enabling higher switching frequencies without sacrificing conduction loss. Its optimized charge balance supports ZVS-capable topologies like LLC resonant converters.

The MOSFET features a fully characterized reverse diode with Q_rr = 190 nC and t_rr = 220 ns at I_F = 7.5 A, V_R = 400 V, making it suitable for synchronous rectification and freewheeling roles in PFC and DC-DC stages where body diode recovery behavior directly impacts EMI and efficiency.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	650 V - Maximum drain-source blocking voltage; enables use in universal-input (85–265 VAC) offline SMPS with sufficient margin against line surges and ringing.
I_D (T_C = 25°C)	15 A - Continuous drain current rating at case temperature 25°C; defines maximum steady-state power handling before thermal derating applies.
R_DS(on) max	450 mΩ @ V_GS = 10 V - On-resistance directly determines conduction loss (P_cond ≈ I_D² × R_DS(on)) in hard-switched applications.
E_AS	420 mJ - Single-pulse avalanche energy rating; confirms robustness under transient overvoltage events without external snubbers in flyback or LLC designs.
Q_G	27 nC - Total gate charge; governs driver strength requirement and switching loss trade-off; lower than C2 generation by ~20%.
R_thJC	1.2 K/W - Junction-to-case thermal resistance; enables accurate junction temperature estimation when mounted on heatsink with known interface resistance.
t_rr	220 ns - Reverse recovery time of intrinsic body diode; impacts commutation loss and EMI in totem-pole PFC and half-bridge configurations.

Pinout & Package

Package: TO-220FP (Full-Pak), isolated tab, vertical mounting, lead-free and halogen-free mold compound.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main high-side current path	Electrically connected to metal tab; must be electrically isolated from heatsink unless circuit topology requires common-drain configuration.
Source	Reference node for gate drive and current sensing	Low-inductance connection point for shunt resistor placement and gate driver return path; critical for stable switching.
Gate	Control terminal for channel modulation	High-impedance input requiring low-ESR gate resistor (typically 10–47 Ω) to damp oscillation and control dV/dt during turn-on/off.

Key Features

Feature	Design Value
100% avalanche-tested	Guarantees single-pulse ruggedness up to 420 mJ without parameter shift - eliminates need for overvoltage clamping in cost-sensitive industrial adapters.
Optimized Q_G/R_DS(on) ratio	27 nC / 0.45 Ω = 60 nC·Ω - balances switching and conduction losses for 65–100 kHz SMPS operating points typical in DIN-rail PSUs.
Reduced Q_OSS	38 nC - Low output charge minimizes capacitive turn-on loss and improves light-load efficiency in QR flyback controllers.
Enhanced body diode softness	Soft recovery with controlled dI/dt (t_rr = 220 ns, Q_rr = 190 nC) reduces voltage overshoot and EMI in discontinuous conduction mode (DCM) operation.
Halogen-free & RoHS-compliant	Meets IPC-1752A material declaration requirements for industrial equipment targeting EU/NA markets with strict environmental compliance mandates.

Applications

Industrial AC-DC Adapters

Server Auxiliary Power Supplies

Use Scenario: 24 V/5 A standby supply in programmable logic controller (PLC) chassis, operating continuously at 60°C ambient with natural convection cooling.

IC Role / Device Role / Timing Role: Primary-side switch in quasi-resonant flyback converter, switching at 65 kHz with valley-switching control.

Use Value: 450 mΩ R_DS(on) and 1.2 K/W R_thJC enable <75°C junction temperature at full load without forced air, meeting IEC 61800-5-1 thermal safety limits.

Use Scenario: +12 V/3 A hold-up supply for server motherboard management controller (BMC), required to sustain operation for ≥16 ms during main PSU brownout.

IC Role / Device Role / Timing Role: High-side switch in active-clamp forward converter, operating in continuous conduction mode at 100 kHz.

Use Value: 650 V rating and 420 mJ E_AS ensure reliable operation during 4 kV surge testing per IEC 61000-4-5, eliminating field failures in datacenter environments.

Industrial DIN-Rail Power Supplies

Motor Drive Auxiliary Supplies

Use Scenario: 24 V/10 A primary converter in 3-phase motor drive auxiliary PSU, exposed to vibration and wide temperature cycling (-25°C to +70°C).

IC Role / Device Role / Timing Role: Main switch in asymmetric half-bridge topology, driven by transformer-isolated gate driver with 15 V gate bias.

Use Value: TO-220FP package provides mechanical robustness and isolation margin (>4 mm creepage) required for 300 V DC bus systems per UL 61800-5-1.

Use Scenario: Isolated 15 V gate supply for 1200 V IGBT half-bridge in servo drive, sharing same transformer as main inverter stage.

IC Role / Device Role / Timing Role: Synchronous rectifier in secondary-side forward converter, replacing Schottky diode to reduce conduction loss.

Use Value: Body diode Q_rr = 190 nC and soft recovery minimize cross-conduction loss and dv/dt-induced shoot-through risk during gate drive overlap.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP15N65M2	R_DS(on) = 480 mΩ, Q_G = 32 nC, no specified E_AS rating	Lacks guaranteed avalanche ruggedness; requires external clamping in flyback designs with high leakage inductance	Lower cost option only if system-level surge testing is waived and layout minimizes voltage overshoot.
IPP65R450C7	R_DS(on) = 450 mΩ, Q_G = 24 nC, E_AS = 380 mJ, TO-220 package (non-FP)	Non-isolated tab requires insulating washer; slightly lower gate charge improves light-load efficiency	Better for space-constrained layouts where heatsink isolation is already implemented; not drop-in due to mounting differences.

Compared with STP15N65M2 and IPP65R450C7, SPI15N65C3XKSA1 uniquely combines certified avalanche ruggedness, isolated TO-220FP packaging, and balanced Q_G/R_DS(on) - making it the preferred choice for unattended industrial power supplies requiring zero-failure reliability across temperature and line-voltage extremes.

Availability

SPI15N65C3XKSA1 is available at Aetrix Electronics and suitable for industrial AC-DC adapters, server auxiliary power supplies, and DIN-rail power modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for IEC 61508-certified systems.

Supply support for SPI15N65C3XKSA1 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 is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and industrial sensors, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

This part belongs to the CoolMOS™ C3 product line, engineered specifically for high-efficiency, high-reliability offline power conversion in industrial and enterprise infrastructure applications where thermal stability and surge immunity are non-negotiable.

FAQ

What is the maximum allowable case temperature for continuous operation?

The SPI15N65C3XKSA1 is rated for T_C ≤ 110°C under continuous DC conditions. Derating begins above 25°C ambient per the datasheet's thermal curves; at T_C = 110°C, I_D must be limited to 9.2 A to maintain R_DS(on) within specification and avoid irreversible parametric shift.

Does this MOSFET require a negative gate turn-off voltage?

No. The device is fully specified for 0 V to +15 V gate drive. A negative turn-off voltage is not required or recommended; standard 0 V to +12 V or +15 V gate drivers (e.g., 1EDN7512B) provide optimal switching performance and gate oxide reliability without added complexity.

Can SPI15N65C3XKSA1 replace SPI15N65C2 in an existing design?

Yes, with minor layout review: C3 offers 20% lower Q_G and improved E_AS (420 mJ vs. 350 mJ), but identical pinout, R_DS(on), and V_DSS. Gate drive loop inductance should be verified to avoid excessive dV/dt-induced ringing due to faster switching edges.

Is the TO-220FP package compatible with automated optical inspection (AOI) after reflow?

Yes. The TO-220FP's coplanar leads and defined solder fillet geometry meet IPC-A-610 Class 2 requirements for AOI detection. Lead finish is matte tin (Sn), ensuring consistent wetting and reflectivity for reliable solder-joint inspection in high-volume industrial assembly lines.

SPI15N65C3XKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™

Package/Case:: TO-262-3 Long Leads, I2PAK, TO-262AA

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 650 V

Current - Continuous Drain (Id) @ 25°C:: 15A (Tc)

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

Rds On (Max) @ Id, Vgs:: 280mOhm @ 9.4A, 10V

Vgs(th) (Max) @ Id:: 3.9V @ 675µA

Gate Charge (Qg) (Max) @ Vgs:: 63 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1600 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 156W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO262-3-1

SPI15N65C3XKSA1 FAQ

1.How can I place an order for SPI15N65C3XKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SPI15N65C3XKSA1 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 SPI15N65C3XKSA1 reliable?

The price and inventory of SPI15N65C3XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPI15N65C3XKSA1 is usually 5 days.

3.What payment methods are accepted for SPI15N65C3XKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPI15N65C3XKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SPI15N65C3XKSA1?

SPI15N65C3XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SPI15N65C3XKSA1 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 SPI15N65C3XKSA1?

For technical support, including SPI15N65C3XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPI15N65C3XKSA1 requirements.

6.How does Aetrix verify that SPI15N65C3XKSA1 is sourced from the original manufacturer or authorized distributors?

All SPI15N65C3XKSA1 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 SPI15N65C3XKSA1 meets industry standards.

7.What is the process for return or replacement of SPI15N65C3XKSA1?

All SPI15N65C3XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with SPI15N65C3XKSA1, 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 SPI15N65C3XKSA1 part is unused and in its original packaging.

Return procedure for SPI15N65C3XKSA1:

1.Submit a request within 90 days.

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

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