Diodes Incorporated D5V0HA2U3SO-7

Overview

D5V0HA2U3SO from Diodes Incorporated is a dual-channel unidirectional ESD protection diode in SOT23 package, designed to safeguard high-speed data lines against ±30kV IEC 61000-4-2 contact/air discharge. It features 6.4V minimum breakdown voltage, 9.8V clamping at 1A, 156pF typical input capacitance, and 300W peak pulse power per line-used in USB 2.0, HDMI, and audio interface protection.

For engineers reviewing the D5V0HA2U3SO datasheet, D5V0HA2U3SO pinout, D5V0HA2U3SO application, or D5V0HA2U3SO equivalent, key selection criteria include clamping voltage under 15A surge, sub-1µA leakage at 5V standoff, dual-channel layout compatibility with SOT23 footprint, and IEC 61000-4-2 compliance for portable electronics ESD hardening.

Technical Context

This device implements two independent unidirectional TVS structures in a single SOT23-3 package, each channel connecting anode to ground and cathode to I/O line. It operates as a voltage-clamping suppressor-triggering above 6.4V (V_BR) and limiting transients to ≤9.8V at 1A and ≤20V at 15A (8/20µs waveform).

Designed for low-capacitance signal integrity preservation, its 156pF typical C_T at 0V enables use on 480Mbps USB 2.0 lines without signal degradation. The ultra-low 1µA max reverse leakage at V_RWM = 5V ensures minimal impact on battery-powered system standby current.

Key Specifications

Pinout & Package

Package: SOT23-3, surface-mount, lead-free, RoHS-compliant plastic package with matte tin-plated alloy 42 leadframe; moisture sensitivity level 1 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection applications.

Compared with SMA6J5.0A-Q and TPD2E001DRYR, D5V0HA2U3SO uniquely balances 156pF capacitance, ±30kV ESD rating, and dual-channel SOT23 integration-making it optimal for cost-sensitive, space-limited USB 2.0 and audio applications requiring full IEC compliance.

Availability

D5V0HA2U3SO is available at Aetrix Electronics and suitable for USB 2.0 interface protection, smartphone audio jack hardening, and industrial analog sensor input safeguarding requiring stable component supply across production lifecycles.

Supply support for D5V0HA2U3SO 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, manufacturing, and sales operations across Asia, Europe, and the Americas.

This device belongs to Diodes' ESD protection product line, engineered specifically for high-fidelity signal line protection in consumer, computing, and industrial electronics where low capacitance and certified IEC immunity are mandatory.

FAQ

What is the maximum clamping voltage at 15A for D5V0HA2U3SO?

The clamping voltage is 20V at 15A peak pulse current (8/20µs waveform), measured per Figure 1 in DS43686 Rev. 1–2. This value ensures downstream 5V-tolerant interface ICs remain within absolute maximum ratings during worst-case ESD transients, provided PCB layout minimizes trace inductance.

Can D5V0HA2U3SO be used for bidirectional ESD protection?

Yes-when only Pins 1 and 2 are connected (anode-to-ground, cathode-to-line), it functions as a bidirectional suppressor by leveraging internal series diode architecture. However, full dual-channel unidirectional operation uses Pins 1–2 and 2–3 separately, offering lower clamping for positive transients on Pin 3.

Is D5V0HA2U3SO qualified for automotive applications?

No-this part is not AEC-Q200 qualified. Diodes states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing; users must contact Diodes directly for qualified alternatives such as the D5V0H1B2LPQ-7.

What is the thermal resistance junction-to-ambient for D5V0HA2U3SO?

R_θJA is 500°C/W when mounted on a standard FR-4 PCB with 2oz copper per Diodes' recommended pad layout. This value assumes no thermal vias or copper pour; adding thermal relief improves power dissipation margin during repetitive surge events.