Nexperia USA Inc. BUK7207-30B,118

Overview

BUK7207-30B,118 from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS standard-level power MOSFET in DPAK (SOT428) package, designed for automotive-critical 12 V load switching. It delivers 75 A continuous drain current at T_mb = 25 °C, 30 V V_DS rating, and 5.9 mΩ typical R_DS(on) at V_GS = 10 V and T_j = 25 °C, enabling low conduction loss in thermally demanding environments up to 185 °C junction temperature.

For engineers reviewing the BUK7207-30B,118 datasheet, BUK7207-30B,118 pinout, BUK7207-30B,118 application, or BUK7207-30B,118 equivalent, key selection criteria include automotive-grade avalanche ruggedness (329 mJ), thermal resistance to mounting base (0.95 K/W), gate-drive compatibility with standard 10 V logic, and package-level current derating behavior per Figure 1 and Figure 2.

Technical Context

This device implements a trench-gate vertical DMOS structure optimized for low R_DS(on) and high avalanche energy handling. Its gate threshold voltage (V_GS(th)) ranges from 0.9 V at 185 °C to 4.4 V at −55 °C, ensuring robust turn-on margin across automotive temperature extremes while maintaining sub-1 V turn-on capability at maximum junction temperature.

Dynamic performance is characterized by 34 nC total gate charge, 10 nC gate-drain charge, and 1684 pF input capacitance at V_DS = 25 V, supporting fast switching in motor drive and solenoid control where dI/dt and EMI constraints require controlled transition times and low Crss.

Key Specifications

Pinout & Package

Package: SOT428 (DPAK), plastic single-ended surface-mounted package with 3 leads (lead 2 cropped); mounting base (mb) electrically connected to drain terminal.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STL220N3LLH6 and IRF3205PBF, BUK7207-30B,118 provides optimal balance of automotive qualification, thermal robustness (185 °C), and DPAK package integration-making it preferred for space-constrained, thermally aggressive automotive modules where qualification and reliability outweigh raw current rating.

Availability

BUK7207-30B,118 is available at Aetrix Electronics and suitable for automotive body control modules, 12 V DC motor drives, and solenoid control systems requiring stable component supply across extended temperature and lifecycle requirements.

Supply support for BUK7207-30B,118 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

Nexperia is a global semiconductor expert specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified MOSFETs and ESD protection solutions.

BUK7207-30B,118 belongs to Nexperia's TrenchMOS automotive power portfolio, engineered specifically for robust 12 V load switching in harsh automotive environments where AEC-Q101 compliance, thermal resilience, and avalanche ruggedness are mandatory.

FAQ

Is BUK7207-30B,118 suitable for high-frequency PWM motor control?

Yes, with verified 14 ns turn-on delay, 85 ns rise time, and 10 nC gate-drain charge, it supports PWM frequencies up to 100 kHz in brushed DC motor drives. However, switching losses increase above 50 kHz due to Q_G = 34 nC and C_iss = 1684 pF; thermal design must account for combined conduction and switching dissipation per Figure 2.

What is the maximum safe operating current at 100 °C mounting base temperature?

Per Figure 1, normalized continuous drain current drops to ~60% at T_mb = 100 °C, yielding ~45 A (0.6 × 75 A). This limit is package-constrained-not silicon-limited-and assumes adequate PCB copper area for heat spreading per DPAK thermal guidelines in the datasheet.

Does the mounting base require electrical isolation from the heatsink?

No-the mounting base is internally connected to the drain (pin 2), so direct metal-to-metal contact with a grounded heatsink creates a short circuit. An electrically insulating thermal pad or mica washer rated for ≥30 V isolation and ≤1.5 K·cm²/W thermal resistance must be used when mounting to conductive surfaces.

Can BUK7207-30B,118 replace older BUK7207-30A variants in existing designs?

Yes-BUK7207-30B,118 is a direct replacement with identical pinout, package, and electrical specifications; the "B" suffix denotes updated wafer process and qualification revision (Rev. 3, 2011), with no functional or mechanical changes versus Rev. 2 "A" version.