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NXP Semiconductors BUK6228-55C,118 — Logic ICs

BUK6228-55C,118 N-Channel MOSFET, 55V 31A DPAK

MPNBUK6228-55C,118
End of Life

NXP Automotive AEC-Q101 TrenchMOS N-Channel MOSFET, BUK6228-55C,118, 55V Vdss, 31A Id, 29mOhm Rds(on) at 10V, DPAK surface-mount package.

$0.22Ref. price · indicative, final on quote
PackagingTO-252-3, DPak (2 Leads + Tab), SC-63
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications

BUK6228-55C,118 Technical Specifications
ParameterValue
SeriesAutomotive, AEC-Q101, TrenchMOS™
FET typeN-Channel
Mounting typeSurface Mount
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)10V
Current - continuous drain (Id) @ 25°C31A (Tc)
Power dissipation60W (Tc)
Operating temperature-55°C ~ 175°C (TJ)
PackageBulk
Vgs±16V
TechnologyMOSFET (Metal Oxide)
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Vgs(th) (Max) @ id2.8V @ 1mA
Rds on (Max) @ id, vgs29mOhm @ 10A, 10V
Gate charge (Qg) (Max) @ vgs20.2 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds1340 pF @ 25 V

Product details

On-resistance and gate drive — what sets the conduction and switching budget

At 31 A continuous drain current, the I²R loss at full rated current reaches about 28 W, which must be managed against the 60 W package thermal limit. The gate charge of 20.2 nC at 10 V means a standard gate driver with 1 A peak source/sink capability can switch this FET in the tens-of-nanoseconds range; for higher-frequency designs above 100 kHz, the gate-drive power dissipation becomes a design consideration. The 1340 pF input capacitance at 25 V drain bias is consistent with a medium-charge device in this voltage class.

AEC-Q101 and the 175°C junction — qualified for the harsh environment

The AEC-Q101 qualification (automotive grade) means this part has passed stress tests including high-temperature reverse bias, temperature cycling, and autoclave. The -55°C to 175°C operating junction range exceeds the typical automotive under-hood requirement of 150°C, providing margin in high-ambient applications like engine control units or transmission modules. The maximum gate-source voltage of ±16 V accommodates standard 12 V automotive gate drives with headroom for transient overvoltage.

DPAK footprint and thermal management

The exposed metal tab is the drain terminal and provides the primary thermal path. For 60 W maximum dissipation at case temperature, adequate PCB copper area on the drain pad — typically 1 to 2 square inches per layer — is needed to keep junction temperature within limits under full load. The tab is electrically live at drain potential, so the PCB layout must account for isolation spacing.

Frequently asked questions

What is the closest pin-compatible alternative to BUK6228-55C,118?

The evidence does not list a specific pin-compatible second-source part. Within the same NXP TrenchMOS family, other 55 V DPAK N-channel devices with similar Rds(on) and current ratings may be footprint-compatible, but their gate charge and threshold voltage characteristics should be verified against the application requirements.