Diodes Incorporated DMN32D4SDW-13

Overview

DMN32D4SDW-13 from Diodes Incorporated is a dual N-channel enhancement-mode MOSFET in SOT363 package, rated for 30V V_DS, 0.4Ω R_DS(on) at V_GS = 10V, and 0.65A continuous drain current at T_A = 25°C. It integrates ESD-protected gates and low-input capacitance (50pF C_iss) for efficient switching in compact DC-DC converters and LED backlighting circuits.

For engineers reviewing the DMN32D4SDW-13 datasheet, DMN32D4SDW-13 pinout, DMN32D4SDW-13 application, or DMN32D4SDW-13 equivalent, key selection criteria include verified R_DS(on) at 4.5V gate drive, dual-channel thermal coupling in SOT363, body diode forward voltage (0.8–1.2V), and junction-to-ambient thermal resistance (360°C/W on 1"×1" FR-4).

Technical Context

This dual MOSFET uses planar silicon technology with integrated gate protection diodes per channel (D1/S1/G1 and D2/S2/G2), enabling independent control of two low-side switching paths. Its 0.29W steady-state power dissipation and 420°C/W R_θJA (minimum pad layout) define thermal limits for continuous operation below 70°C ambient.

The device delivers fast switching (t_D(on) = 2.8ns, t_f = 22.8ns) with low total gate charge (0.6nC at V_GS = 4.5V), supporting high-frequency PWM in space-constrained power stages. Gate threshold voltage (0.8–1.6V) ensures reliable turn-on with standard logic-level drivers.

Key Specifications

Pinout & Package

Package: SOT363 - 6-pin ultra-small surface-mount package with 0.65mm pitch, 2.10mm × 1.30mm footprint, and 0.25mm profile; RoHS-compliant matte tin finish over Alloy42 leadframe.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DMN32D4SDW-13, DMN3026LSDW-7 offers lower on-resistance for improved efficiency at higher currents but shares identical footprint and drive compatibility; FDMA1027PZ introduces package and polarity trade-offs that increase component count and reduce integration density.

Availability

DMN32D4SDW-13 is available at Aetrix Electronics and suitable for motor control, DC-DC converters, LED backlighting, and power management functions requiring stable component supply across industrial, medical, and consumer electronics production cycles.

Supply support for DMN32D4SDW-13 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 automotive markets.

The DMN32D4SDW belongs to Diodes' low-voltage dual MOSFET product line, engineered specifically for space-constrained, high-efficiency power conversion where dual-channel integration, logic-level drive, and robust ESD tolerance are mandatory.

FAQ

What is the maximum safe operating temperature for DMN32D4SDW-13 in continuous use?

The device is rated for junction temperatures from −55°C to +150°C. For continuous operation, thermal design must limit T_J to ≤150°C using the specified 360°C/W R_θJA on a 1"×1" 2oz copper PCB. At 0.5A drain current and 0.7Ω R_DS(on), self-heating exceeds 100°C/W, so derating below 70°C ambient is recommended for reliability.

Can DMN32D4SDW-13 be used in a synchronous buck converter's high-side position?

No - DMN32D4SDW-13 is a dual N-channel MOSFET with source terminals referenced to ground (S1/S2). High-side switching requires either a P-channel device or an N-channel with floating gate drive (e.g., bootstrap circuit). Its internal structure lacks level-shifting capability or integrated high-side driver.

Does the SOT363 package support reflow soldering per J-STD-020?

Yes - the SOT363 package is rated for Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/85% RH and subjected to standard Pb-free reflow profiles (peak 260°C, 20–40 sec above 217°C) without baking or special handling.

How does the integrated gate protection diode affect circuit layout?

The internal gate-source ESD diode (D1 between G1 and S1, D2 between G2 and S2) requires that gate traces avoid coupling to noisy nodes. Layout must keep gate routing short and away from switching nodes like drains; adding a 10Ω series resistor near each gate helps damp ringing without compromising switching speed.