Renesas NP32N055SDE-E1-AZ

Overview

NP32N055SDE from Renesas Electronics is an N-channel power MOSFET designed for high-current DC-DC converter primary-side switching, motor drive half-bridges, and industrial power supply synchronous rectification control. It delivers R_DS(on)1 = 24 mΩ max at V_GS = 10 V / I_D = 16 A, supports 55 V V_DSS, and operates up to 175 °C channel temperature in TO-252 (JEDEC) package.

For engineers reviewing the NP32N055SDE datasheet, NP32N055SDE pinout, NP32N055SDE application, or NP32N055SDE equivalent, this page provides verified electrical parameters, thermal derating curves, avalanche energy ratings, gate charge characteristics, and real-world switching behavior under 28 V/16 A conditions - all critical for hard-switched SMPS and motor gate driver design.

Technical Context

This device uses a planar trench-gate structure optimized for low conduction loss and fast switching in hard-switched topologies. Its 1300 pF typical C_iss and 90 pF Cr_ss enable efficient gate drive with minimal Miller-induced shoot-through risk at 100 kHz–500 kHz operation.

The body diode exhibits t_rr = 41 ns and Q_rr = 58 nC under I_F = 32 A / di/dt = 100 A/µs, supporting moderate-frequency freewheeling in non-synchronous buck converters and H-bridge regenerative braking circuits.

Key Specifications

Pinout & Package

NP32N055SDE is housed in TO-252 (JEDEC) / MP-3ZK surface-mount package with exposed drain pad for thermal enhancement. The package measures 6.5 ± 0.2 mm × 6.1 ± 0.2 mm × 1.14 mm max height, with 4.3 mm minimum creepage between gate and source terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRFZ44NPBF and STP32NF55, NP32N055SDE offers superior avalanche energy margin (64 mJ), lower gate charge (41 nC vs. 63 nC), and TO-252 thermal performance - making it preferred for compact, high-reliability industrial switching where layout space and transient immunity are constrained.

Availability

NP32N055SDE is available at Aetrix Electronics and suitable for industrial motor drives, server power ORing circuits, and automotive body control modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for NP32N055SDE 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

Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.

NP32N055SDE belongs to Renesas' legacy power MOSFET product line targeting high-efficiency, high-reliability discrete switching in harsh thermal environments - developed before the 2010 NEC/Renesas merger and maintained under Renesas' Standard quality grade.

FAQ

What is the maximum continuous drain current rating for NP32N055SDE at 100 °C case temperature?

At T_C = 100 °C, the NP32N055SDE's continuous drain current is derated to approximately 22 A, calculated using its R_th(ch-C) = 2.27 °C/W and P_T1 = 66 W rating. This value is confirmed by Figure 2 (Total Power Dissipation vs. Case Temperature) in the D15309EJ2V0DS datasheet, which shows linear derating from 32 A at 25 °C to zero at ~225 °C.

Does NP32N055SDE support 5 V gate drive in practical applications?

Yes, NP32N055SDE supports 5 V gate drive with R_DS(on)2 = 29 mΩ max at V_GS = 5.0 V / I_D = 16 A. Its V_GS(th) range of 1.5–2.5 V ensures reliable turn-on with standard 5 V logic, though designers should verify gate drive strength to overcome Q_G = 41 nC within required switching times.

What is the thermal resistance from channel to ambient for NP32N055SDE in standard JEDEC 2-layer board mounting?

The NP32N055SDE has R_th(ch-A) = 125 °C/W when mounted on a standard JEDEC 2-layer test board per JESD51-3. This value assumes 1-inch² 2-oz copper pad with no additional heatsinking - actual performance improves significantly with larger thermal pads or internal copper planes.

Is NP32N055SDE suitable for synchronous rectification in a 12 V output buck converter?

Yes, NP32N055SDE is suitable for synchronous rectification due to its low R_DS(on) = 24 mΩ and fast body diode (t_rr = 41 ns, Q_rr = 58 nC). Its gate threshold and capacitance allow clean turn-on/turn-off control with standard gate drivers, reducing conduction loss versus Schottky diodes at >5 A loads.

What quality grade applies to NP32N055SDE according to Renesas documentation?

NP32N055SDE is classified as "Standard" quality grade per Renesas documentation, intended for computers, office equipment, industrial robots, and communications equipment. It is not rated for "High Quality" (e.g., automotive powertrain) or "Specific" (e.g., life-support systems) applications unless explicitly requalified.