NXP Semiconductors PHU11NQ10T,127

Overview

PHU11NQ10T from Philips Semiconductors is an N-channel enhancement-mode TrenchMOS™ power MOSFET in SOT533 (I-PAK) package, rated for 100 V drain-source voltage, 10.9 A DC drain current at V_GS = 10 V, and 150–180 mΩ R_DS(on) at 25 °C. It serves as a high-speed, low-loss switching element in relay drivers and line drivers.

For engineers reviewing the PHU11NQ10T datasheet, PHU11NQ10T pinout, PHU11NQ10T application, or PHU11NQ10T equivalent, this discrete MOSFET delivers verified avalanche ruggedness (35 mJ), fast switching (t_d(on) = 5.5 ns, t_f = 7.2 ns), and thermal robustness up to 175 °C junction temperature - critical for industrial solid-state switching designs.

Technical Context

This standard-level MOSFET uses TrenchMOS™ technology to achieve low on-resistance and fast switching with gate threshold voltage of 1–4 V (typ. 3 V) and total gate charge of 14.7 nC. Its dynamic characteristics - including C_iss = 360 pF, C_oss = 60 pF, and Q_gd = 5.3 nC - support efficient hard-switching operation in DC-DC and motor control stages.

The device features an integrated source-drain diode with V_SD = 1.0–1.5 V at 11 A and reverse recovery time t_rr = 55 ns, enabling use in freewheeling and synchronous rectification roles without external diodes. Thermal resistance from junction to mounting base is 2.6 K/W, confirming suitability for heatsink-mounted high-power switching.

Key Specifications

Pinout & Package

SOT533 (I-PAK) plastic single-ended package with 3 leads in-line; tab is internally connected to drain and serves as primary thermal path to heatsink.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP12NF10 and IRF540NPBF, PHU11NQ10T offers optimal balance of compact SOT533 packaging, 150 mΩ R_DS(on), and 14.7 nC gate charge - making it preferred for space-constrained, medium-frequency (>500 kHz) industrial switching where thermal management via heatsink is feasible.

Availability

PHU11NQ10T is available at Aetrix Electronics and suitable for relay drivers, high-speed line drivers, and general-purpose switches requiring stable component supply across industrial control, test instrumentation, and building automation programs.

Supply support for PHU11NQ10T 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

Philips Semiconductors (now NXP Semiconductors) is a Dutch semiconductor pioneer known for high-reliability analog and power devices used in automotive, industrial, and consumer systems.

The PHU11NQ10T belongs to Philips' TrenchMOS™ standard-level power MOSFET family, engineered for robust, cost-effective switching in industrial control and power conversion where 100 V rating and moderate current handling are required.

FAQ

What is the maximum continuous drain current for PHU11NQ10T at 100 °C mounting base temperature?

The PHU11NQ10T supports 7.7 A DC drain current at T_mb = 100 °C and V_GS = 10 V, as specified in Table 3 of its product data sheet. This derating reflects thermal limits of the SOT533 package and ensures safe operation under sustained load conditions without exceeding 175 °C junction temperature. Designers must verify heatsink interface resistance to maintain T_mb ≤100 °C when operating near this limit.

Does PHU11NQ10T have avalanche capability, and how is it rated?

Yes, PHU11NQ10T is rated for non-repetitive drain-source avalanche energy E_DS(AL)S = 35 mJ under defined test conditions: unclamped inductive load, I_D = 3.2 A, t_p = 0.2 ms, V_DD ≤15 V, R_GS = 50 Ω, V_GS = 10 V, and starting T_j = 25 °C. This rating enables single-event fault tolerance in relay and motor drive circuits but does not support repetitive avalanche operation.

What is the gate-source threshold voltage range for PHU11NQ10T, and how does it vary with temperature?

The PHU11NQ10T has a gate-source threshold voltage V_GS(th) ranging from 1 V (min) to 4 V (max) at T_j = 25 °C, with typical value 3 V. At T_j = 175 °C, V_GS(th) drops to 0.6 V (min), and at T_j = −55 °C, it rises to 4.6 V (max). This negative temperature coefficient ensures inherent current limiting at high temperature, improving thermal stability in the PHU11NQ10T.

Can PHU11NQ10T be used in a high-side switch configuration?

No, PHU11NQ10T is optimized for low-side switching due to its standard-level gate drive requirement (10 V for full enhancement) and SOT533 pinout where the drain is tied to the exposed tab. High-side operation would require floating gate drive circuitry and isolation, increasing complexity and cost. For high-side applications, a P-channel or level-shifted N-channel solution is recommended instead of PHU11NQ10T.

What is the thermal resistance from junction to mounting base for PHU11NQ10T, and why does it matter?

The PHU11NQ10T has R_th(j-mb) = 2.6 K/W, measured from silicon junction to the mounting base (i.e., the soldered tab surface). This low value confirms efficient heat transfer to an external heatsink and is critical for calculating maximum allowable power dissipation: P_max = (T_j(max) − T_mb) / R_th(j-mb). For example, at T_mb = 75 °C, PHU11NQ10T can dissipate up to 38.5 W continuously - essential for relay driver thermal design.