Diodes Incorporated DMN63D1LT-7

Overview

DMN63D1LT-7 from Diodes Incorporated is an N-channel enhancement-mode MOSFET in SOT-523 package, rated for 60 V V_DSS, 2 Ω R_DS(ON) @ 10 V V_GS, and 320 mA continuous drain current at +25°C. It features low gate threshold voltage (1.0–2.5 V), ESD-protected gate, and AEC-Q101 qualification-designed for compact, high-efficiency power switching in space-constrained motor control and load management circuits.

For engineers reviewing the DMN63D1LT-7 datasheet, DMN63D1LT-7 pinout, DMN63D1LT-7 application, or DMN63D1LT-7 equivalent, key selection criteria include its 60 V breakdown rating, sub-2.5 V gate threshold enabling 3.3 V logic drive, 30 pF C_iss, 392 pC total gate charge, and thermal resistance of 497 °C/W on FR-4 PCB-critical for low-power battery-operated and automotive body electronics designs.

Technical Context

This discrete N-channel MOSFET operates as a low-side switch with enhancement-mode gate control. Its 1.6 V typical V_GS(TH) ensures reliable turn-on from 3.3 V microcontrollers, while 2 Ω R_DS(ON) @ 10 V supports efficient conduction in <1 W power stages. The integrated body diode has 0.75 V typical forward voltage at 115 mA.

The device uses a planar silicon process with matte tin–annealed Alloy 42 leadframe and green molding compound. It exhibits normalized R_DS(ON) drift of ≤1.8× from −55°C to +150°C and maintains safe operation up to 1.2 A pulsed drain current under 1% duty cycle conditions.

Key Specifications

Pinout & Package

Package: SOT-523 - ultra-small surface-mount plastic case (1.60 mm × 0.80 mm × 0.50 mm), moisture sensitivity level 1, lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel low-voltage switching applications.

Compared with DMN63D1LT-7, DMN63D1L-7 trades miniaturization for thermal headroom, while AO3400 sacrifices voltage rating for lower conduction loss-making DMN63D1LT-7 the optimal balance for space-constrained 48 V-compatible switching where 2 Ω R_DS(ON) meets efficiency targets.

Availability

DMN63D1LT-7 is available at Aetrix Electronics and suitable for automotive door modules, USB power delivery controllers, IoT sensor node load switching, and industrial LED indicator drivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for DMN63D1LT-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and Malaysia.

The DMN63D1LT-7 belongs to Diodes' AEC-Q101-qualified small-signal MOSFET product line, engineered specifically for space- and power-constrained automotive body electronics and industrial control applications demanding robustness and logic-level compatibility.

FAQ

What is the maximum continuous drain current for DMN63D1LT-7 at +70°C ambient?

The maximum continuous drain current is 260 mA at TA = +70°C, as specified in the Absolute Maximum Ratings table. This derating reflects thermal limitations of the SOT-523 package on standard FR-4 PCB with minimum copper area. At higher ambient temperatures, further reduction is required per the RθJA = 497 °C/W thermal resistance value.

Does DMN63D1LT-7 have an integrated body diode, and what is its forward voltage?

Yes, it includes an intrinsic body diode with anode at the source and cathode at the drain. The typical forward voltage is 0.75 V at IS = 115 mA and VGS = 0 V, as measured at +25°C. This diode supports freewheeling in inductive load applications such as motor control, though reverse recovery is not characterized in the datasheet.

Can DMN63D1LT-7 be driven directly from a 3.3 V microcontroller GPIO?

Yes-its gate threshold voltage range (1.0–2.5 V) and typical 1.6 V value ensure full enhancement at 3.3 V VGS. With 2.0 Ω RDS(ON) at 10 V and only 3.0 Ω at 5 V, it remains well-below saturation at 3.3 V, delivering ~2.5 Ω effective on-resistance and supporting up to 260 mA with acceptable conduction loss.

Is DMN63D1LT-7 suitable for hot-swap applications?

It can be used in low-power hot-swap roles (e.g., USB VBUS control) due to fast switching (3.9 ns tD(ON)), low Qg (392 pC), and ESD-protected gate. However, it lacks explicit SOA characterization for linear-mode operation during insertion transients, so external current limiting or slew-rate control is recommended for robust 12–48 V hot-plug use cases.