IRLZ44NPBF

IRLZ44NPbF is an Infineon logic-level N-channel power MOSFET in TO-220 — for MCU-driven power stages: Arduino/Raspberry Pi motor drivers, load switches and relay replacements. It is fully enhanced at low-voltage logic-level gate drive, with a high continuous drain-current rating and low maximum Rds(on). Heat evidence: logic-level MOSFETs are in sustained demand as more designs drive power stages directly from low-voltage logic — part of the broader Nexperia-alternative sourcing wave. Selection advice: the L in IRLZ44N means logic-level — the key differentiator vs the IRFZ44N; drive it straight from MCU outputs with no gate driver needed. Parameters verified against Infineon documentation.

Discrete SemiconductorsLogic-level N-channel MOSFETTO-220

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MPN: IRLZ44NPBF
Manufacturer: Infineon Technologies
Family: Logic-level N-channel MOSFET
Package: TO-220
Manufacturer channel coverage: Checked by RFQ
Data last checked: Commercial check required
Required order checks: Suffix, package, date code, lot, source and traceability
Lifecycle: Active

PROCUREMENT DATA

Identity and sourcing requirements.

MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Polarity: N-channel
Drain-source voltage: 55 V minimum · breakdown voltage at VGS = 0 V, ID = 250 µA
Absolute maximum — drain current: 47 A maximum · absolute-maximum rating at TC = 25°C (case temperature), VGS = 10 V
RDS(on) at 10 V: 22 mΩ maximum · at VGS = 10 V, ID = 25 A
Gate characteristic: Logic-level
Package: TO-220

Source: Infineon IRLZ44N data sheet PD-94831 · Absolute Maximum Ratings and Electrical Characteristics tables · Reviewed 2026-09-21

Sourcing note

Confirm polarity, voltage, current, package, thermal limits and reel orientation.

Before you request a quote

Validate current against case temperature and SOA
The 47 A continuous figure is quoted at a 25°C case temperature; the usable current in a real design is set by heatsinking and the safe operating area. Validate the load against those limits instead of the headline number.
Confirm gate drive and the full suffix
The gate is logic-level, but RDS(on) is tabulated at VGS = 10 V in the profile above — check the on-resistance at your actual drive voltage. PBF is the lead-free TO-220 order code; confirm the through-hole package and full suffix against the approved BOM.

Official documentation

Confirm the latest manufacturer revision and ordering suffix before design-in or purchase.

Manufacturer product page

QUOTE WORKFLOW

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Identity

Exact MPN, manufacturer and suffix

Supply

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Evidence

Lot, labels, photos and documents

Terms

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RELATED REFERENCES

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Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

COMMON QUESTIONS

IRLZ44NPBF FAQ

What are the key specifications of IRLZ44NPBF?

From the verified technical profile: Polarity: N-channel; Drain-source voltage: 55 V minimum · breakdown voltage at VGS = 0 V, ID = 250 µA; Absolute maximum — drain current: 47 A maximum · absolute-maximum rating at TC = 25°C (case temperature), VGS = 10 V. These are the catalog-recorded values for IRLZ44NPBF — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.