Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Infineon Technologies SPA03N60C3XKSA1

Name: SPA03N60C3XKSA1
Brand: Infineon Technologies
SKU: SPA03N60C3XKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SPA03N60C3XKSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3 Full Pack

Datasheet:: SPA03N60C3XKSA1.pdf

Description:: MOSFET N-CH 650V 3.2A TO220-FP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,235

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SPA03N60C3XKSA1 from Infineon Technologies is a 600 V, 3 A N-channel enhancement-mode power MOSFET in TO-220-3 package, featuring R_DS(on) = 2.4 Ω (typ @ V_GS = 10 V, I_D = 1.5 A), 15 V/ns dv/dt ruggedness, and repetitive avalanche rating up to 12 mJ. It serves as a high-voltage switching element in offline SMPS primary-side switches and AC-DC adapters.

For engineers reviewing the SPA03N60C3XKSA1 datasheet, SPA03N60C3XKSA1 pinout, SPA03N60C3XKSA1 application, or SPA03N60C3XKSA1 equivalent, key selection criteria include its 600 V V_DSS, ultra-low gate charge (Q_g = 9.5 nC), avalanche-rated operation, thermal resistance (R_thJC = 3.3 K/W), and body diode reverse recovery performance (t_rr = 270 ns).

Technical Context

This MOSFET employs Infineon's CoolMOS™ C3 technology, delivering improved transconductance (g_fs = 2.5 S) and reduced gate-to-drain charge (Q_gd = 3.8 nC) versus prior generations. Its fully isolated TO-220 package enables direct heatsink mounting without insulation hardware.

The device supports hard-switched topologies with rated dV/dt immunity (15 V/ns), repetitive avalanche energy (E_AR = 12 mJ), and peak pulsed drain current (I_D,pulse = 12 A), making it suitable for discontinuous conduction mode (DCM) flyback and resonant LLC primary-side switching.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	600 V - Withstands DC bus voltages up to 400 V RMS mains-derived supplies with margin for surge and ringing.
R_DS(on)	2.4 Ω (typ @ T_j = 25°C, V_GS = 10 V) - Enables low conduction loss in 3–5 W adapter primary switches.
Q_g	9.5 nC - Reduces gate drive power and enables use with low-current controllers like ICE2Axx series.
E_AR	12 mJ (repetitive) - Supports reliable operation under inductive turn-off stress without external snubbers.
t_rr	270 ns - Limits body diode switching loss during ZVS transitions in quasi-resonant converters.
R_thJC	3.3 K/W - Allows 1.8 W continuous dissipation at T_C = 100°C, matching typical TO-220 heatsink capability.
I_D (cont)	3 A @ T_C = 100°C - Rated for sustained operation in compact, convection-cooled offline adapters.

Pinout & Package

Package: TO-220-3 (full-pack, isolated tab), lead-free, RoHS-compliant, with electrically isolated drain-connected tab for direct heatsink mounting.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control input	High-impedance MOS gate requiring <100 nA leakage; driven by dedicated gate driver ICs or controller integrated drivers.
2 (Drain)	High-voltage power terminal	Connected to primary winding of transformer and DC bus; electrically isolated from case per full-pack construction.
3 (Source)	Power return and reference	Serves as local ground for gate drive circuitry; connects to controller ground and current-sense resistor.

Key Features

Feature	Design Value
Repetitive avalanche rated	Enables robust operation in unclamped inductive switching without external protection components.
Ultra-low Q_gd/Q_g ratio	3.8 nC / 9.5 nC = 0.4 - Improves switching efficiency and reduces Miller-induced shoot-through risk.
15 V/ns dv/dt immunity	Prevents false turn-on during fast voltage transients common in high-frequency flyback and LLC converters.
Improved transconductance	g_fs = 2.5 S - Provides tighter V_GS(th) control and better line/load regulation in current-mode control loops.

Applications

AC-DC Adapter Primary Switch

LED Driver Flyback Switch

Use Scenario: 5–12 W universal-input (85–265 VAC) offline adapter powering USB-C devices.

IC Role / Device Role / Timing Role: Primary-side high-side switch in DCM flyback topology, operating at 65–100 kHz with valley switching.

Use Value: Low R_DS(on) and Q_g reduce no-load power and improve average efficiency across load range per DOE Level VI requirements.

Use Scenario: Constant-voltage LED driver for commercial downlights with 30–42 V output.

IC Role / Device Role / Timing Role: Primary-side switch in quasi-resonant flyback, leveraging body diode conduction during zero-voltage switching intervals.

Use Value: 270 ns t_rr and soft recovery minimize EMI and enable >90% efficiency at full load.

Industrial SMPS Auxiliary Supply

Appliance Power Module Switch

Use Scenario: 3 W auxiliary supply for PLC I/O modules, powered from 300–400 VDC intermediate bus.

IC Role / Device Role / Timing Role: High-side switch in self-oscillating flyback, operating with fixed off-time and variable frequency.

Use Value: Repetitive avalanche rating eliminates need for clamping circuits, reducing BOM count and improving long-term reliability.

Use Scenario: Main power switch in white-goods motor control power stage (e.g., washing machine pump driver).

IC Role / Device Role / Timing Role: Low-duty-cycle switching element in half-bridge configuration, handling inrush and stall currents.

Use Value: 12 A pulsed I_D and 12 mJ E_AR withstand motor startup surges without derating or thermal shutdown.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP3NK60ZFP	600 V, 3 A, R_DS(on) = 2.2 Ω, Q_g = 11 nC, no specified repetitive avalanche rating	Lacks documented repetitive avalanche capability; requires external clamping in high-stress flyback designs	Preferred where cost sensitivity outweighs avalanche robustness and layout space allows snubber implementation.
FQP3N60C	600 V, 3 A, R_DS(on) = 2.5 Ω, Q_g = 10.5 nC, R_thJC = 3.5 K/W, t_rr = 320 ns	Higher body diode recovery time increases switching loss in QR flyback above 75 kHz	Suitable for fixed-frequency DCM flyback below 65 kHz where thermal margin permits higher R_thJC.

Compared with STP3NK60ZFP and FQP3N60C, SPA03N60C3XKSA1 delivers superior dv/dt immunity (15 V/ns vs ≤10 V/ns), lower gate charge, and guaranteed repetitive avalanche performance-critical for compact, unclamped, high-reliability offline power supplies.

Availability

SPA03N60C3XKSA1 is available at Aetrix Electronics and suitable for AC-DC adapters, LED lighting drivers, and industrial auxiliary power supplies requiring stable component supply and long-lifecycle support.

Supply support for SPA03N60C3XKSA1 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 electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and ISO 14001.

This part belongs to the CoolMOS™ C3 family, engineered for high-efficiency, high-voltage switching in consumer and industrial offline power conversion-emphasizing low gate charge, avalanche ruggedness, and thermal robustness.

FAQ

Is SPA03N60C3XKSA1 suitable for zero-voltage switching (ZVS) topologies?

Yes. Its 270 ns reverse recovery time (t_rr) and soft-recovery body diode enable reliable ZVS in quasi-resonant flyback and LLC converters. The device's 15 V/ns dv/dt immunity prevents spurious turn-on during resonant node voltage transitions, supporting stable operation up to 130 kHz.

What is the maximum allowable case temperature for continuous operation?

The maximum continuous case temperature is 100°C, as defined by the 3 A DC current rating at T_C = 100°C. At this temperature, junction-to-case thermal resistance remains 3.3 K/W, limiting P_tot to 1.8 W. Exceeding 100°C case temperature violates the safe operating area and risks parametric drift or premature failure.

Does SPA03N60C3XKSA1 require a gate resistor for stability?

Yes. A 10–22 Ω gate resistor is recommended between driver output and gate pin to dampen parasitic oscillation and limit peak gate current. This value balances switching speed (minimizing Q_g-related losses) and EMI suppression, especially when driving from controllers with strong gate drive capability (e.g., ICE3Bxx).

Can this MOSFET replace older CoolMOS™ C2 parts in existing designs?

Yes, with validation. SPA03N60C3XKSA1 offers lower R_DS(on) (2.4 Ω vs 2.7 Ω), reduced Q_g (9.5 nC vs 11.5 nC), and improved dv/dt immunity versus C2 equivalents like SPA03N60C2. Layout and gate drive timing should be verified due to faster switching edges and altered Miller plateau characteristics.

SPA03N60C3XKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™

Package/Case:: TO-220-3 Full Pack

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:: 3.2A (Tc)

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

Rds On (Max) @ Id, Vgs:: 1.4Ohm @ 2A, 10V

Vgs(th) (Max) @ Id:: 3.9V @ 135µA

Gate Charge (Qg) (Max) @ Vgs:: 17 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 400 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 29.7W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO220-3-31

SPA03N60C3XKSA1 FAQ

1.How can I place an order for SPA03N60C3XKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SPA03N60C3XKSA1 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 SPA03N60C3XKSA1 reliable?

The price and inventory of SPA03N60C3XKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPA03N60C3XKSA1 is usually 5 days.

3.What payment methods are accepted for SPA03N60C3XKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPA03N60C3XKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SPA03N60C3XKSA1?

SPA03N60C3XKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SPA03N60C3XKSA1 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 SPA03N60C3XKSA1?

For technical support, including SPA03N60C3XKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPA03N60C3XKSA1 requirements.

6.How does Aetrix verify that SPA03N60C3XKSA1 is sourced from the original manufacturer or authorized distributors?

All SPA03N60C3XKSA1 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 SPA03N60C3XKSA1 meets industry standards.

7.What is the process for return or replacement of SPA03N60C3XKSA1?

All SPA03N60C3XKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with SPA03N60C3XKSA1, 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 SPA03N60C3XKSA1 part is unused and in its original packaging.

Return procedure for SPA03N60C3XKSA1:

1.Submit a request within 90 days.

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

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…