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 BUZ31L E3044A

Name: BUZ31L E3044A
Brand: Infineon Technologies
SKU: BUZ31L E3044A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BUZ31L E3044A

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: BUZ31L E3044A.pdf

Description:: MOSFET N-CH 200V 13.5A TO220-3

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,407

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

Product details

Overview

BUZ31L E3044A from Infineon Technologies is an N-channel logic-level SIPMOS power MOSFET rated for 200 V V_DS, 13.5 A continuous drain current, and 0.16 Ω typical R_DS(on) at V_GS = 5 V; designed for high-reliability DC-DC converters, motor control H-bridges, and industrial solid-state relays requiring avalanche ruggedness and low gate drive voltage.

For engineers reviewing the BUZ31L E3044A datasheet, BUZ31L E3044A pinout, BUZ31L E3044A application, or BUZ31L E3044A equivalent, this part supports logic-level gate drive (V_GS(th) = 1.2–2.0 V), delivers 200 mJ single-pulse avalanche energy, and operates across –55 °C to +150 °C junction temperature with Pb-free PG-TO220-3 packaging.

Technical Context

This discrete power transistor uses enhancement-mode silicon planar technology with integrated body diode and avalanche-rated operation. Its gate threshold voltage (1.2–2.0 V) enables direct interfacing with 3.3 V/5 V microcontrollers, while its 1.32 K/W thermal resistance (R_thJC) supports high-power switching up to 95 W at T_C = 25 °C.

The device exhibits 1200–1600 pF input capacitance (C_iss) and 100–150 pF reverse transfer capacitance (C_rss) at V_DS = 25 V, enabling predictable switching behavior in hard-switched topologies. Its 180 ns reverse recovery time (t_rr) and 1.2 µC reverse recovery charge (Q_rr) are specified under standardized di/dt conditions (100 A/µs).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	200 V - Maximum blocking voltage for DC-DC primary-side switches and 24/48 V industrial bus protection.
I_D (continuous)	13.5 A at T_C = 28 °C - Sustains full-load current in motor drivers without forced cooling.
R_DS(on)	0.16 Ω typ. at V_GS = 5 V - Enables <1.1 W conduction loss at 13.5 A, reducing heatsink requirements.
E_AS	200 mJ single-pulse - Withstands inductive turn-off surges in relay replacement and solenoid drive circuits.
t_r/t_f	80–120 ns / 65–85 ns - Supports >100 kHz PWM in SMPS with controlled dv/dt and reduced EMI.
V_GS(th)	1.2–2.0 V - Compatible with 3.3 V GPIOs; eliminates need for level-shifting gate drivers.
T_j range	–55 °C to +150 °C - Qualified for under-hood automotive auxiliary loads and industrial PLC output stages.

Pinout & Package

PG-TO220-3 package with isolated tab (drain-connected); standard through-hole mounting and heatsink interface. Pin 1 = Gate, Pin 2 = Drain, Pin 3 = Source.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Gate	High-impedance MOSFET control terminal; requires ≤20 V absolute max rating and low-inductance gate loop for stable switching.
Pin 2	Drain	Main high-side power terminal; electrically connected to metal tab-must be insulated from heatsink unless referenced to system ground.
Pin 3	Source	Power return path and gate reference node; forms common source configuration with gate drive referenced to this pin.

Key Features

Feature	Design Value
Avalanche-rated operation	200 mJ single-pulse E_AS ensures robustness against inductive kickback without external snubbers.
Logic-level gate drive	V_GS(th) ≤ 2.0 V enables direct connection to 3.3 V/5 V MCU outputs without gate driver ICs.
Low R_DS(on) at 5 V	0.16 Ω typical reduces I²R losses by >30% vs. standard 10 V-gate MOSFETs at same current.
Integrated body diode	13.5 A continuous forward current (I_S) and 1.2–1.6 V V_SD support freewheeling in half-bridge configurations.
Pb-free PG-TO220-3	RoHS-compliant leadframe and solderable finish compatible with standard wave/reflow assembly processes.

Applications

Motor Control

DC-DC Conversion

Use Scenario: Bidirectional 24 V brushed DC motor drive in industrial actuators.

IC Role / Device Role / Timing Role: Low-side switch in H-bridge topology; handles 13.5 A stall current and 54 A pulsed surge.

Use Value: Avalanche rating absorbs back-EMF during rapid direction reversal; logic-level gate simplifies MCU interface.

Use Scenario: Primary-side switch in 48 V input, 12 V output flyback converter for telecom power supplies.

IC Role / Device Role / Timing Role: High-voltage power switch operating at 100 kHz with 50 V V_DD clamping during transients.

Use Value: 200 mJ E_AS prevents failure during output short-circuit events; 0.16 Ω R_DS(on) maintains >92% efficiency at full load.

Solid-State Relay

Industrial Load Switching

Use Scenario: Replacement for electromechanical relays in programmable logic controller (PLC) output modules.

IC Role / Device Role / Timing Role: Main load switch controlling resistive/heating loads up to 2.7 kW at 200 V AC (with bridge rectifier).

Use Value: 150 °C T_j rating allows operation in sealed enclosures; low gate charge enables fast on/off transitions for pulse-width modulated heating control.

Use Scenario: High-current power distribution switch in factory automation I/O racks.

IC Role / Device Role / Timing Role: Hot-swap and overload-protected main power switch with integrated body diode freewheeling.

Use Value: 13.5 A continuous current and 54 A pulsed rating support peak inrush of solenoids and contactors; TO220 mechanical robustness ensures long-term field reliability.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel logic-level power MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP14NK60ZFP	600 V V_DS, 14 A I_D, 0.42 Ω R_DS(on) at 10 V - higher voltage rating but requires 10 V gate drive.	Not logic-level; needs gate driver for 3.3 V MCU use; better suited for offline SMPS than low-voltage motor control.	Select only if >400 V blocking is required and gate drive voltage ≥10 V is available.
IRFZ44NPBF	55 V V_DS, 49 A I_D, 0.028 Ω R_DS(on) at 10 V - lower voltage, higher current, but not avalanche-rated.	Lacks E_AS specification; unsuitable for inductive switching without external protection components.	Prefer for high-current, low-voltage DC loads where avalanche stress is absent and gate drive ≥10 V is assured.

Compared with STP14NK60ZFP and IRFZ44NPBF, BUZ31L E3044A uniquely combines 200 V rating, logic-level drive, and certified avalanche capability-making it optimal for 24–48 V industrial switching where reliability under transient overvoltage is critical.

Availability

BUZ31L E3044A is available at Aetrix Electronics and suitable for motor control, DC-DC conversion, and solid-state relay applications requiring stable component supply, long-lifecycle support, and RoHS-compliant through-hole power transistors.

Supply support for BUZ31L E3044A 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 and discrete devices.

BUZ31L belongs to Infineon's SIPMOS logic-level power MOSFET product line, engineered for high-efficiency, high-reliability switching in industrial automation, motor drives, and power supply systems where low gate drive voltage and avalanche ruggedness are essential.

FAQ

Is BUZ31L E3044A pin-compatible with BUZ31L without the E3044A suffix?

Yes-E3044A is Infineon's internal manufacturing code indicating a specific wafer fab and assembly lot; electrical specifications, pinout, and package dimensions match the base BUZ31L designation exactly. No design changes or compatibility concerns exist between versions.

What is the maximum safe operating temperature for continuous operation?

The BUZ31L E3044A supports continuous operation up to +150 °C junction temperature (T_j). Derating begins above T_C = 28 °C per datasheet curves; at T_C = 100 °C, continuous I_D drops to ~6.5 A to maintain T_j ≤ 150 °C with R_thJC ≤ 1.32 K/W.

Does the body diode support synchronous rectification?

No-the integrated body diode has 1.2–1.6 V forward voltage (V_SD) and 180 ns reverse recovery time (t_rr), making it unsuitable for high-frequency synchronous rectification. It is intended for freewheeling and clamping, not active rectification; external Schottky diodes or dedicated SR controllers are recommended for that function.

Can BUZ31L E3044A be used in parallel configurations?

Yes-its positive temperature coefficient for R_DS(on) (increasing with T_j) enables inherent current sharing when paralleled. However, matched gate drive layout, identical PCB trace lengths, and individual gate resistors are mandatory to ensure balanced dynamic current distribution and avoid oscillation or thermal runaway.

BUZ31L E3044A Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: SIPMOS®

Package/Case:: TO-220-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 200 V

Current - Continuous Drain (Id) @ 25°C:: 13.5A (Tc)

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

Rds On (Max) @ Id, Vgs:: 200mOhm @ 7A, 5V

Vgs(th) (Max) @ Id:: 2V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: -

Vgs (Max):: ±20V

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

FET Feature:: -

Power Dissipation (Max):: 95W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO220-3-1

BUZ31L E3044A FAQ

1.How can I place an order for BUZ31L E3044A through Aetrix?

Please submit a Request for Quotation (RFQ) for BUZ31L E3044A 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 BUZ31L E3044A reliable?

The price and inventory of BUZ31L E3044A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUZ31L E3044A is usually 5 days.

3.What payment methods are accepted for BUZ31L E3044A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUZ31L E3044A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUZ31L E3044A?

BUZ31L E3044A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUZ31L E3044A 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 BUZ31L E3044A?

For technical support, including BUZ31L E3044A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUZ31L E3044A requirements.

6.How does Aetrix verify that BUZ31L E3044A is sourced from the original manufacturer or authorized distributors?

All BUZ31L E3044A 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 BUZ31L E3044A meets industry standards.

7.What is the process for return or replacement of BUZ31L E3044A?

All BUZ31L E3044A units undergo pre-shipment inspection (PSI). If there is an issue with BUZ31L E3044A, 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 BUZ31L E3044A part is unused and in its original packaging.

Return procedure for BUZ31L E3044A:

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…