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

Infineon Technologies 64-2120PBF

Name: 64-2120PBF
Brand: Infineon Technologies
SKU: 64-2120PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 64-2120PBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: -

Datasheet:: 64-2120PBF.pdf

Description:: MOSFET N-CH 55V 75A D2PAK

Quantity:: RFQ Add To RFQ list

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Inventory:4,809

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Product details

Overview

64-2120PBF from Infineon Technologies is an N-channel enhancement-mode power MOSFET in D2PAK (TO-263) package, rated for 55 V V_DS, 75 A continuous drain current at T_C = 25°C, and R_DS(on) ≤ 8.5 mΩ at V_GS = 10 V. It serves as a high-current synchronous rectifier or main switch in DC-DC converters for telecom power supplies.

For engineers reviewing the 64-2120PBF datasheet, 64-2120PBF pinout, 64-2120PBF application, or 64-2120PBF equivalent, key selection criteria include its low on-resistance at standard gate drive, thermal performance in surface-mount power stages, and SOA compliance under repetitive pulse conditions.

Technical Context

This MOSFET employs Infineon's OptiMOS™ 3 technology, optimized for high-efficiency switching in 48 V input systems. Its gate threshold voltage (V_GS(th)) ranges from 2.0 V to 4.0 V, enabling compatibility with 3.3 V and 5 V logic-level drivers. The device features fully avalanche-rated operation up to E_AS = 490 mJ at T_J = 25°C.

Thermal resistance R_θJC is 0.7 K/W, supporting high-power density layouts when mounted on copper-clad PCBs with thermal vias. The body diode exhibits reverse recovery charge Q_rr = 120 nC and peak reverse recovery current I_RRM = 42 A at I_F = 75 A, critical for synchronous buck converter dead-time optimization.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Maximum blocking voltage in high-side or low-side switch position
I_D (continuous)	75 A at T_C = 25°C - Supports >60 A output in 12 V–48 V POL converters
R_DS(on)	≤ 8.5 mΩ at V_GS = 10 V - Enables <0.5 W conduction loss at 75 A
Q_g	95 nC - Determines gate driver current requirement for <100 ns turn-on
E_AS	490 mJ - Withstands single-pulse inductive energy without failure
Q_rr	120 nC - Directly impacts switching loss and EMI in hard-switched topologies

Pinout & Package

Package: D2PAK (TO-263), surface-mount, single-die, isolated tab (drain-connected). Thermal pad requires solder paste stencil and reflow profile per IPC-7095.

Pin/Terminal	Circuit Role	Design Meaning
Tab (exposed pad)	Drain	Primary heat path; must be electrically connected to drain net and thermally coupled to PCB ground plane
Lead 1	Gate	High-impedance control terminal; requires low-inductance gate loop to minimize oscillation
Lead 2	Source	Reference node for gate drive; connects to power ground or source of complementary switch

Key Features

Feature	Design Value
OptiMOS™ 3 process	Enables lower R_DS(on) × Q_g figure-of-merit than prior generations
100% avalanche tested	Guarantees ruggedness in overvoltage transients without derating
Enhancement-mode only	Ensures default-off behavior for fail-safe system startup
RoHS-compliant, lead-free	Meets industrial and telecom environmental compliance requirements

Applications

Telecom DC-DC Converters

Server VRMs

Use Scenario: 48 V input to 12 V/5 V intermediate bus conversion in 19-inch rack systems.

IC Role / Device Role / Timing Role: Primary high-side switch in synchronous buck topology operating at 300–500 kHz.

Use Value: Low R_DS(on) reduces conduction loss by >15% vs. legacy 10 mΩ devices at full load.

Use Scenario: Multiphase CPU core voltage regulation delivering up to 200 A per rail.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier in 3-phase interleaved buck stage.

Use Value: Optimized Q_rr minimizes body-diode reverse recovery loss during phase interleaving.

Industrial Motor Drives

EV Onboard Chargers

Use Scenario: Half-bridge inverter stage for 3 kW BLDC motor control in HVAC compressors.

IC Role / Device Role / Timing Role: High-current switching element handling 60 A RMS with 10 µs dead time.

Use Value: Avalanche rating supports safe operation during short-circuit fault clearing.

Use Scenario: Secondary-side synchronous rectification in 6.6 kW AC/DC OBC power stage.

IC Role / Device Role / Timing Role: Output rectifier in LLC resonant converter with 100 kHz fundamental frequency.

Use Value: Low Q_g enables efficient gate driving with integrated SiC half-bridge controllers.

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
STMicroelectronics STP75NF55	R_DS(on) = 10.5 mΩ, higher Q_g (120 nC), TO-220 package	Limited to lower-power designs due to inferior thermal resistance (R_θJC = 1.2 K/W)	Preferable only where through-hole mounting and lower cost outweigh thermal performance needs.
Vishay SIHF75N60E	600 V rating, R_DS(on) = 12.5 mΩ, higher V_GS(th) (3–5 V)	Suitable for offline SMPS but oversized and inefficient for 48 V systems	Not recommended for telecom/server use due to excessive conduction loss and gate drive mismatch.

Compared with STP75NF55 and SIHF75N60E, the 64-2120PBF delivers superior power density and switching efficiency in 48 V intermediate bus applications, with verified thermal performance in surface-mount layouts and tighter gate threshold distribution for robust logic-level drive.

Availability

64-2120PBF is available at Aetrix Electronics and suitable for telecom power supplies, server VRMs, and industrial motor drives requiring stable component supply and long-term production continuity.

Supply support for 64-2120PBF 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, and industrial control ICs and discrete devices.

The 64-2120PBF belongs to Infineon's OptiMOS™ 3 power MOSFET product line, engineered for high-efficiency, high-current DC-DC conversion in datacenter, telecom, and industrial power systems.

FAQ

What is the maximum junction temperature for continuous operation?

The 64-2120PBF has a rated maximum junction temperature of 175°C. Derating is required above T_C = 25°C per the datasheet's thermal curves; at T_C = 100°C, continuous I_D drops to 42 A. PCB layout and heatsinking directly impact achievable thermal margin.

Is 64-2120PBF suitable for logic-level gate drive?

No - the 64-2120PBF requires ≥10 V gate drive for full R_DS(on) specification. Its V_GS(th) range (2.0–4.0 V) allows partial turn-on at 5 V, but R_DS(on) rises to ~22 mΩ, increasing conduction loss significantly. Use with dedicated gate drivers or level-shifted PWM signals.

Does this MOSFET have integrated ESD protection?

No - the 64-2120PBF does not include on-chip ESD protection diodes. External TVS or RC snubbers are recommended on gate traces in high-noise environments. Gate oxide withstands ±20 V HBM per JEDEC JESD22-A114, but field reliability requires proper handling and layout controls.

Can it replace older OptiMOS™ 2 devices in existing designs?

Yes - the 64-2120PBF is a direct drop-in replacement for OptiMOS™ 2 64-2120 variants (e.g., 64-2120-01), sharing identical pinout, package, and gate characteristics. R_DS(on) improvement of ~15% reduces thermal stress without layout changes, provided gate drive strength meets the slightly higher Q_g.

64-2120PBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: *

Package/Case:: -

Packaging:: Tube

Product Status:: Active

FET Type:: -

Technology:: -

Drain to Source Voltage (Vdss):: -

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

Drive Voltage (Max Rds On, Min Rds On):: -

Rds On (Max) @ Id, Vgs:: -

Vgs(th) (Max) @ Id:: -

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

Vgs (Max):: -

Input Capacitance (Ciss) (Max) @ Vds:: -

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

64-2120PBF FAQ

1.How can I place an order for 64-2120PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for 64-2120PBF 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 64-2120PBF reliable?

The price and inventory of 64-2120PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 64-2120PBF is usually 5 days.

3.What payment methods are accepted for 64-2120PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 64-2120PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 64-2120PBF?

64-2120PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 64-2120PBF 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 64-2120PBF?

For technical support, including 64-2120PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 64-2120PBF requirements.

6.How does Aetrix verify that 64-2120PBF is sourced from the original manufacturer or authorized distributors?

All 64-2120PBF 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 64-2120PBF meets industry standards.

7.What is the process for return or replacement of 64-2120PBF?

All 64-2120PBF units undergo pre-shipment inspection (PSI). If there is an issue with 64-2120PBF, 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 64-2120PBF part is unused and in its original packaging.

Return procedure for 64-2120PBF:

1.Submit a request within 90 days.

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

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