Diodes Incorporated DMN52D0UDW-7

Overview

DMN52D0UDW-7 from Diodes Incorporated is a 50V N-channel enhancement-mode MOSFET in SOT363 package, optimized for low-voltage load switching with R_DS(ON) = 1.0 Ω @ V_GS = 5V, V_GS(TH) ≤ 1.0 V, and I_D = 350 mA at T_A = +25°C. It serves as a compact, ESD-protected power switch in space-constrained portable electronics.

For engineers reviewing the DMN52D0UDW-7 datasheet, DMN52D0UDW-7 pinout, DMN52D0UDW-7 application, or DMN52D0UDW-7 equivalent, key selection criteria include ultra-low gate threshold voltage, sub-2Ω on-resistance at 2.5V drive, thermal resistance of 241°C/W under enhanced layout, and SOT363 dual-MOSFET configuration for level-shifting or dual-load control.

Technical Context

This dual-N-channel MOSFET integrates two identical enhancement-mode transistors in a single SOT363 package, sharing no internal connection between channels. Each channel operates independently with matched V_GS(TH) (0.49–1.0 V) and R_DS(ON) characteristics across temperature.

Designed for 1.8V–5V logic-compatible control, it delivers fast switching (t_D(ON) = 1.1 ns, t_F = 41 ns) and low dynamic losses (C_iss = 42.3 pF, Q_g = 0.7 nC @ 4.5V), enabling efficient operation in battery-powered DC-DC sequencing and USB port power management.

Key Specifications

Pinout & Package

Package: SOT363 - 6-pin, dual-transistor surface-mount plastic package with exposed thermal pad (not electrically connected), 0.006 g mass, UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN52D0UDWQ-7, the standard DMN52D0UDW-7 offers identical performance at lower cost for non-automotive use; versus DMN3029LSD-13, it provides integrated dual-channel operation with matched parameters-critical for timing-sensitive dual-load control-but trades off slightly higher R_DS(ON) at 30V-class alternatives.

Availability

DMN52D0UDW-7 is available at Aetrix Electronics and suitable for USB power management, IoT sensor sequencing, portable display backlight control, and industrial I/O module protection requiring stable component supply and long-term manufacturability.

Supply support for DMN52D0UDW-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The DMN52D0UDW-7 belongs to Diodes' low-voltage logic-level MOSFET product line, engineered specifically for space-constrained, battery-powered applications demanding minimal gate drive voltage and robust thermal performance in miniature packages.

FAQ

Is DMN52D0UDW-7 suitable for high-side switching configurations?

Yes, DMN52D0UDW-7 supports high-side switching when used with appropriate gate drive circuitry-such as a charge pump or level shifter-to ensure V_GS ≥ 2.5V relative to the source. Its 50V V_DSS and low R_DS(ON) make it viable for 24V rail switching, though thermal design must account for R_θJA = 241°C/W under enhanced copper layout.

What is the maximum pulsed drain current rating for DMN52D0UDW-7?

The pulsed drain current (I_DM) is rated at 1.2 A for 10 µs pulses with 1% duty cycle. This rating assumes proper PCB thermal design (2 oz copper, 1-inch² thermal pad). Exceeding this limit risks thermal runaway due to limited junction-to-ambient thermal resistance and low total power dissipation (0.5 W max).

Does DMN52D0UDW-7 include integrated gate protection diodes?

Yes, the device integrates ESD protection diodes on both gates (G1 and G2), rated to 2 kV HBM. The internal schematic shows discrete gate protection diodes (D1/D2) connected between gate and source terminals-confirmed in the "Equivalent Circuit" diagram on page 1 of DS44895 Rev. 3-2. No external gate resistors are required for basic ESD immunity.

Can DMN52D0UDW-7 replace older SOT363 MOSFETs like DMN2004K-7 in existing designs?

Direct replacement is possible only if the legacy part shares identical pinout (G-S-D per channel) and V_GS(TH) ≤ 1.0 V. DMN2004K-7 has V_GS(TH) = 0.5–1.0 V and R_DS(ON) = 2.2 Ω @ 4.5V-so DMN52D0UDW-7 offers 45% lower on-resistance and faster switching, but requires verification of gate drive compatibility and thermal margin due to higher I_D capability.