Diodes Incorporated ZVN3306ASTOA

Overview

ZVN3306ASTOA from Diodes Incorporated is an N-channel enhancement-mode vertical DMOS FET rated for 60 V V_DS, 5 Ω R_DS(on) at V_GS = 10 V and I_D = 500 mA, with 270 mA continuous drain current at 25°C ambient. It operates in low-voltage switching applications such as LED drivers, power management in portable instrumentation, and load switching in industrial control modules.

For engineers reviewing the ZVN3306ASTOA datasheet, ZVN3306ASTOA pinout, ZVN3306ASTOA application, or ZVN3306ASTOA equivalent, key selection criteria include verified R_DS(on) stability over temperature, gate threshold voltage range (0.8–2.4 V), pulsed current capability (3 A), TO-92 package thermal limits, and safe operating area under 18 V drive conditions.

Technical Context

This discrete MOSFET uses vertical DMOS construction to achieve low on-resistance and fast switching with minimal gate charge (Q_g ≈ 10 nC typical). Its transconductance of 150 mS at V_DS = 18 V and I_D = 500 mA supports stable current regulation in linear and saturated modes.

The device exhibits predictable threshold voltage drift (±0.2 V from −40°C to +125°C) and normalized R_DS(on) increase of ~1.8× at 125°C, enabling thermal-aware design in unheatsinked TO-92 layouts. Input capacitance (C_iss = 35 pF) and reverse transfer capacitance (C_rss = 8 pF) support sub-10 ns turn-on/turn-off timing under 18 V drive.

Key Specifications

Pinout & Package

Supplied in a through-hole TO-92 package with standard lead configuration: Drain (D), Gate (G), Source (S) arranged in linear pin order (viewed from front, flat side facing user, leads down).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ZVN3306ASTOA, ZVN2110A trades conduction efficiency for tighter gate charge control, while DMN2004LK-7 offers better low-V_GS performance in space-constrained 3.3 V systems but sacrifices 60 V transient robustness and through-hole assembly compatibility.

Availability

ZVN3306ASTOA is available at Aetrix Electronics and suitable for LED driver circuits, portable instrumentation power sequencing, and industrial I/O module load switching requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ZVN3306ASTOA 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 components for industrial, computing, and consumer applications.

ZVN3306ASTOA belongs to the ZVN series of general-purpose N-channel MOSFETs designed for cost-sensitive, low-to-medium power switching where TO-92 compatibility, logic-level gate drive, and thermal stability are essential.

FAQ

Is ZVN3306ASTOA suitable for 3.3 V microcontroller GPIO direct drive?

Yes. With a gate threshold voltage range of 0.8–2.4 V and guaranteed turn-on at V_GS = 3.3 V, it fully enhances at standard logic levels. Measured I_D(on) reaches 750 mA at V_GS = 10 V, and even at 3.3 V, typical R_DS(on) remains below 12 Ω, supporting ≤100 mA loads with <100 mW loss.

What is the maximum safe operating voltage for ZVN3306ASTOA in repetitive pulse conditions?

The absolute maximum V_DS is 60 V, and breakdown is specified at 60 V with I_D = 1 mA. For reliable long-term operation, design to ≤48 V DC or ≤40 V peak under transient conditions, respecting SOA limits defined in the datasheet's Safe Operating Area graph (Issue 2, Fig. 3-376).

Does ZVN3306ASTOA require a gate resistor for ESD protection or switching control?

A 10 kΩ pull-down resistor is recommended on the gate to prevent floating turn-on. A series gate resistor (10–100 Ω) is advised for EMI reduction and ringing suppression in high-speed switching, especially when driving inductive loads. No internal gate protection diode is present, so external TVS may be needed in harsh environments.

How does R_DS(on) change with temperature, and what impact does this have on thermal design?

R_DS(on) increases ~1.8× from 25°C to 125°C junction temperature, per the normalized curve (Fig. 3-376). At 125°C, R_DS(on) ≈ 9 Ω, raising conduction loss significantly. Thermal design must ensure T_j stays ≤100°C under worst-case I_D to maintain <7 Ω effective resistance and avoid thermal runaway in sustained operation.