IRF9540NPBF

IRF9Z34NPBF is an Infineon P-channel power MOSFET — for high-side switching and reverse-polarity protection: -55V drain-source voltage, -19A continuous drain current, 100mOhm on-resistance at VGS -10V, 56W power dissipation, 175C maximum junction temperature, TO-220 through-hole package. The P-channel architecture simplifies high-side drive — no charge-pump or bootstrap supply needed, so the gate drive collapses to a simple level shift; the 175C Tj rating gives thermal headroom that keeps the part inside SOA during overload transients. Business impact: IR MOSFETs are a decades-proven portfolio with multi-source footprints — designs avoid single-source allocation risk on a jellybean power device. Selection advice: the PBF suffix is the lead-free TO-220 tube version — for surface-mount consider the D2PAK IRF9Z34S; verify gate drive voltage delivers at least -10V for full enhancement at rated current. Featured on hqbuy.com hot search (2026-10-05). Parameters verified against Infineon Technologies documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

FQP27P06 is an onsemi (Fairchild) P-channel 60 V power MOSFET in TO-220 — for H-bridge and reverse-polarity protection: -27 A continuous drain current, 70 mΩ maximum Rds(on) at 10 V, -55°C to +175°C. Heat evidence: onsemi QFET series — P-channel high-current for H-bridge designs rides the alternative-sourcing wave. Selection advice: the FQP prefix is the TO-220 variant — pair with N-channel QFETs for complementary bridges; the P-channel simplifies high-side drive vs N-channel charge pumps. Parameters verified against onsemi documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

RD3L140SPFRATL is a ROHM P-channel power MOSFET in TO-252 (DPAK) - for high-side switching and load control: -60V drain-source voltage, -14A continuous drain current, 84 mOhm maximum on-resistance at -10V gate drive and 103 mOhm maximum at -4.5V gate drive, 27nC typical total gate charge, 20W power dissipation, -55C to 150C, AEC-Q101 qualified. The P-channel polarity is the selection point: high-side switching with a simple ground-referenced gate drive, no charge pump or bootstrap circuit, which shortens the gate-drive design and shrinks the surrounding BOM. Business impact: one AEC-Q101 DPAK device covers automotive and industrial load switches, reverse-polarity protection and motor power stages with a single qualified code. Selection advice: the TL suffix is the 2500-piece tape-and-reel packing - verify the -4.5V on-resistance if driving from logic-level rails, and size copper and thermal relief for 20W dissipation since DPAK thermal performance depends on board copper. Ranked #19 on the hqew.com yesterday-hot list (2026-10-16). Parameters verified against ROHM documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

IRF540NPbF is an Infineon 100 V N-channel power MOSFET in TO-220AB — for motor drives, SMPS and high-current switching: the industry workhorse for 100 V bus designs. 33 A continuous drain current, 44 mΩ maximum Rds(on), 47.3 nC total gate charge, -55°C to +175°C junction range. Heat evidence: Nexperia supply disruption has triggered rush buying of alternative MOSFETs from Infineon, onsemi and ST — the IRF540 is among the most universally stocked power FETs. Selection advice: the PbF suffix is lead-free/RoHS-compliant — same die as the legacy IRF540N, specify PbF for all new builds; for 55 V and lower buses the IRFZ44N cuts conduction losses significantly. Parameters verified against Infineon documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

IRF540ZPBF is an Infineon StrongIRFET 100 V N-channel power MOSFET in TO-220AB — for automotive and high-efficiency switching: 36 A continuous drain current, 26.5 mΩ maximum Rds(on), optimized gate charge, -55°C to +175°C, AEC-Q101 qualified. Selection advice: the Z in IRF540Z denotes StrongIRFET — lower Rds(on) than the standard IRF540N at a small premium; for cost-sensitive non-automotive use the IRF540N suffices. Parameters verified against Infineon documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

IRFZ24NPBF is an Infineon 55 V N-channel power MOSFET in TO-220AB — for mid-power switching: DC-DC converters, motor drives and load switches. 17 A continuous drain current, 70 mΩ maximum Rds(on), 1–2 V gate threshold, -55°C to +175°C. Selection advice: the NPBF suffix is the lead-free TO-220AB — for higher current in the same voltage class step up to the IRFZ44N; for logic-level drive use the IRLZ24N. Parameters verified against Infineon documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

IRL3705NPBF is an Infineon logic-level 55 V N-channel HEXFET in TO-220AB — for high-power MCU-driven switching: 89 A continuous drain current, 10 mΩ maximum Rds(on), fully enhanced at 4.5 V, 1–2 V gate threshold, -55°C to +175°C. Selection advice: the L in IRL3705N means logic-level — 89 A with MCU drive eliminates the gate-driver stage; for standard gate drive the IRFZ44N is the counterpart. Parameters verified against Infineon documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

IRL540NPBF is an Infineon logic-level 100 V N-channel power MOSFET in TO-220AB — for MCU-driven power stages: motor drivers, Arduino shields and load switches. Fully enhanced at 5 V gate drive, 36 A continuous drain current, 77 mΩ maximum Rds(on), 1–2 V gate threshold, -55°C to +175°C. Heat evidence: logic-level MOSFETs in sustained demand as designs drive power stages directly from 3.3/5 V logic. Selection advice: the L in IRL540N means logic-level — the key differentiator vs the IRF540N; drive directly from MCU outputs with no gate driver. Parameters verified against Infineon documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

BSS169 is an Infineon N-channel depletion-mode small-signal MOSFET in SOT-23 — for circuits that need a normally-on switch: start-up biasing, load switches that default closed, and protection circuits. Depletion mode is the selection point: unlike enhancement MOSFETs it conducts at zero gate voltage and turns off with negative gate drive — the opposite control logic, which catches out first-time users. Selection advice: verify your gate driver can pull negative before substituting an enhancement part — a BSS138 or 2N7002 will not behave the same here. 100 V, 170 mA, AEC-Q101 qualified per the Infineon datasheet. Availability varies by channel — state quantity and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

The IKW40N120H3 is Infineon's TRENCHSTOP HighSpeed3 1200 V IGBT in TO-247-3, rated 40 A nominal with 160 A pulsed capability and 483 W dissipation, a typical 2.05 V collector-emitter saturation voltage, and an integrated anti-parallel diode. The HighSpeed3 trench technology targets 20–100 kHz switching with low tail current and fast turn-off, which cuts switching losses in solar string inverters, UPS systems, welders and induction heaters compared with standard-speed 1200 V IGBTs. Infineon's official discrete-IGBT portfolio lists the part as a new active product, and it is the exact switch pre-assembled on Infineon's EVAL-1ED3321MC12N gate-driver evaluation board — a practical signal of its reference-design status. Selection advice: choose HighSpeed3 when your stage switches above roughly 20 kHz; for line-frequency or low-kHz motor drives a slower, lower-VCE(sat) IGBT family is usually the cheaper fit. The co-packaged diode makes it a one-part solution for hard-switched half-bridges, so state your switching frequency and topology in the RFQ for a confirmed match. Parameters verified against Infineon documentation. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

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