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 SPB03N60S5

Name: SPB03N60S5
Brand: Infineon Technologies
SKU: SPB03N60S5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SPB03N60S5

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: SPB03N60S5.pdf

Description:: N-CHANNEL POWER MOSFET

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,000

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

Product details

Overview

SPB03N60S5 from Infineon Technologies is a 600 V, 3.2 A CoolMOS™ superjunction N-channel power MOSFET in P-TO220-3-1 package, featuring 1.4 Ω R_DS(on) at V_GS = 10 V, ultra-low gate charge (Q_g = 12.4–16 nC), and periodic avalanche rating - designed for high-efficiency offline SMPS in industrial AC-DC adapters and auxiliary power supplies.

For engineers reviewing the SPB03N60S5 datasheet, SPB03N60S5 pinout, SPB03N60S5 application, or SPB03N60S5 equivalent, key selection criteria include its 6 kV/µs dv/dt immunity, 100 mJ single-pulse avalanche energy, 1.26 Ω typical R_DS(on), reverse diode V_SD ≤ 1.2 V, and thermal resistance R_thJC = 3.3 K/W - critical for thermally constrained flyback and QR-PWM converters.

Technical Context

This device implements Infineon's 5th-generation CoolMOS™ superjunction architecture, enabling reduced switching losses via optimized C_iss/C_oss/C_rss ratios (420 pF / 150 pF / 3.6 pF at V_DS = 25 V) and low Q_gd/Q_g ratio (~56%). Its gate threshold voltage (3.5–5.5 V) ensures robust noise immunity in high-noise industrial environments.

The integrated body diode supports continuous 3.2 A forward current with t_rr = 1000–1700 ns and Q_rr = 2.3 µC, enabling reliable operation in discontinuous conduction mode (DCM) flyback topologies without external diode snubbing - validated under repetitive avalanche conditions up to I_AR = 3.2 A.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	600 V - supports universal-input (85–265 V_AC) offline converters with ≥1.5× safety margin over reflected output voltage
R_DS(on)	1.26 Ω (typ), 1.4 Ω (max) at V_GS = 10 V - enables <1.5 W conduction loss at 2 A DC, suitable for <30 W SMPS
Q_g	12.4–16 nC - reduces gate drive power and allows use of low-cost bipolar gate drivers (e.g., 1EDN7512)
E_AS	100 mJ (single pulse) - withstands transient overloads in unregulated auxiliary rails without failure
dv/dt	6 kV/µs - suppresses false turn-on during fast voltage transients in high-frequency QR controllers
R_thJC	3.3 K/W - enables 38 W dissipation at T_C = 25 °C; requires minimal heatsinking in open-frame designs

Pinout & Package

Packaged in P-TO220-3-1 (standard through-hole variant), with drain-connected tab for direct heatsink mounting and isolated source/gate leads.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control input	Receives PWM signal; low input capacitance (C_iss = 420 pF) minimizes driver loading
2 (Drain)	High-voltage power terminal	Internally connected to metal tab; electrically tied to heatsink - requires isolation washer in grounded-sink layouts
3 (Source)	Power return & reference	Serves as local ground for gate driver; low-inductance layout essential to prevent oscillation during hard switching

Key Features

Feature	Design Value
Ultra-low gate charge	Q_g = 12.4–16 nC - cuts gate drive loss by >40% vs. legacy 600 V MOSFETs, enabling higher frequency operation
Periodic avalanche rated	I_AR = 3.2 A, E_AR = 0.2 mJ - sustains repetitive inductive kickback in relay drivers and solenoid controls
Optimized capacitances	C_rss/C_iss = 0.86% - improves voltage-dependent switching behavior and reduces EMI in QR flybacks
Enhanced noise immunity	V_GS(th) = 3.5–5.5 V, dV/dt = 6 kV/µs - prevents spurious turn-on in noisy PLC backplanes and motor drive gate loops

Applications

Industrial AC-DC Adapters

QR Flyback Auxiliary Supplies

Use Scenario: 24 V/0.5 A standby rail in programmable logic controllers (PLCs) operating continuously at 60 °C ambient.

IC Role / Device Role / Timing Role: Primary-side switch in quasi-resonant flyback converter, driven by ICE3Bxx controller.

Use Value: 1.4 Ω R_DS(on) limits conduction loss to 0.35 W at full load, while 100 mJ E_AS absorbs transformer leakage spikes without clamping.

Use Scenario: 12 V/1 A isolated bias supply for IGBT gate drivers in HVAC inverter modules.

IC Role / Device Role / Timing Role: High-side switch in DCM flyback with 65 kHz nominal switching frequency.

Use Value: Low Q_gd (7 nC) enables clean zero-voltage switching transition; integrated diode eliminates need for external FRD.

LED Driver Power Stages

Industrial Relay Drivers

Use Scenario: Constant-current buck-boost LED driver for streetlight control units exposed to outdoor temperature cycling.

IC Role / Device Role / Timing Role: Synchronous rectifier replacement in secondary-side topology, operated in linear region for dimming control.

Use Value: R_DS(on) tempco <1.5%/°C ensures stable current regulation across –40 to +125 °C junction range.

Use Scenario: 24 V DC coil driver in factory automation safety relays requiring SIL2 compliance.

IC Role / Device Role / Timing Role: Snubberless inductive load switch with built-in avalanche ruggedness.

Use Value: Rated for 3.2 A repetitive avalanche current - eliminates external TVS and reduces BOM count by one component.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP3NK60ZFP	600 V, 3.3 A, R_DS(on) = 1.8 Ω, Q_g = 19 nC, no avalanche rating	Lacks periodic avalanche capability; requires external clamping for inductive loads	Select when cost sensitivity outweighs ruggedness requirements and thermal margin exceeds 15 °C
IPP60R190C6	600 V, 2.5 A, R_DS(on) = 1.9 Ω, Q_g = 13.5 nC, CoolMOS™ C6 generation	Lower ID rating; optimized for <20 W applications with tighter gate drive timing	Prefer for space-constrained designs where footprint matches TO-220FP but peak current stays below 2.2 A

Compared with STP3NK60ZFP and IPP60R190C6, SPB03N60S5 delivers superior avalanche ruggedness and lower conduction loss at identical current, making it optimal for thermally demanding industrial SMPS where reliability under overload is non-negotiable.

Availability

SPB03N60S5 is available at Aetrix Electronics and suitable for industrial AC-DC adapters, QR flyback auxiliary supplies, and LED driver power stages requiring stable component supply and long-term manufacturing continuity.

Supply support for SPB03N60S5 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 ICs, and security solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The CoolMOS™ product line targets high-efficiency, high-reliability power conversion - specifically engineered for offline SMPS, server PSUs, and industrial motor drives where switching loss reduction and thermal resilience are critical.

FAQ

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

The SPB03N60S5 supports 2 A continuous drain current at T_C = 100 °C, as specified in its Absolute Maximum Ratings table. This derating reflects thermal limitations of the P-TO220-3-1 package and ensures safe operation within its 150 °C maximum junction temperature limit under sustained load conditions.

Does SPB03N60S5 have a fully rated body diode for synchronous rectification?

No - while the integrated body diode supports 3.2 A continuous forward current and 5.7 A pulsed current, its reverse recovery time (1000–1700 ns) and Q_rr (2.3 µC) make it unsuitable for high-frequency synchronous rectification. It is intended for freewheeling and clamping roles in DCM flyback and relay driving, not as a primary rectifier.

Can SPB03N60S5 replace SPP03N60S5 in existing designs?

Yes - SPB03N60S5 and SPP03N60S5 share identical electrical specifications, thermal characteristics, pinout, and package dimensions (P-TO220-3-1). The SPB prefix denotes the standard leaded version, while SPP refers to the same die in alternate packaging; both are drop-in replacements per Infineon's preliminary data documentation.

What gate resistor value is recommended for 65 kHz QR flyback operation?

A 10–22 Ω gate resistor is recommended to balance switching speed and ringing suppression. With Q_g = 12.4–16 nC and typical driver output impedance <2 Ω, this yields ~15–35 ns effective rise/fall times - sufficient to minimize overlap loss while maintaining stability under 65 kHz operation with 350 V bus voltage.

SPB03N60S5 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Bulk

Product Status:: Active

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 600 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:: 5.5V @ 135µA

Gate Charge (Qg) (Max) @ Vgs:: 16 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 420 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 38W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TO263-3-2

SPB03N60S5 FAQ

1.How can I place an order for SPB03N60S5 through Aetrix?

Please submit a Request for Quotation (RFQ) for SPB03N60S5 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 SPB03N60S5 reliable?

The price and inventory of SPB03N60S5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPB03N60S5 is usually 5 days.

3.What payment methods are accepted for SPB03N60S5?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPB03N60S5 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SPB03N60S5?

SPB03N60S5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SPB03N60S5 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 SPB03N60S5?

For technical support, including SPB03N60S5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPB03N60S5 requirements.

6.How does Aetrix verify that SPB03N60S5 is sourced from the original manufacturer or authorized distributors?

All SPB03N60S5 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 SPB03N60S5 meets industry standards.

7.What is the process for return or replacement of SPB03N60S5?

All SPB03N60S5 units undergo pre-shipment inspection (PSI). If there is an issue with SPB03N60S5, 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 SPB03N60S5 part is unused and in its original packaging.

Return procedure for SPB03N60S5:

1.Submit a request within 90 days.

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

Tech Hub

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

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.