Diodes Incorporated D5V0F1U2LP3Q-7

Overview

D5V0F1U2LP3Q from Diodes Incorporated is a unidirectional transient voltage suppression (TVS) diode designed for high-speed data line ESD protection. It delivers ±15kV contact / ±20kV air IEC 61000-4-2 ESD immunity, 0.5pF typical capacitance at 0V, 5.5V reverse working voltage, and 10V clamping voltage at 1A, deployed in USB 3.0, HDMI, and SATA interfaces.

For engineers reviewing the D5V0F1U2LP3Q datasheet, D5V0F1U2LP3Q pinout, D5V0F1U2LP3Q application, or D5V0F1U2LP3Q equivalent, key selection criteria include low-capacitance ESD protection for >5Gbps serial links, AEC-Q101 qualification for automotive infotainment ports, and X3-DFN0603-2 package compatibility with fine-pitch PCB layouts.

Technical Context

This TVS diode operates as a single-channel, unidirectional clamp between I/O and ground, triggered by overvoltage transients exceeding its 6.0V minimum breakdown threshold. Its ultra-low 0.5pF capacitance minimizes signal integrity degradation on differential high-speed lines.

The device uses silicon avalanche junction technology to achieve fast response (<1ns), low dynamic resistance (1.4Ω), and stable clamping performance across -65°C to +150°C ambient range-enabling robust operation in automotive cabin and industrial edge environments.

Key Specifications

Pinout & Package

Package: X3-DFN0603-2 - ultra-compact, leadless, two-terminal surface-mount package with exposed thermal pad (not electrically connected), matte tin-plated copper leadframe, and UL 94V-0 molded green compound.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar unidirectional TVS diode applications.

Compared with SMAJ5.0A and SP1003-01UTG, D5V0F1U2LP3Q uniquely balances 5.5V VRWM, 0.5pF capacitance, and AEC-Q101 qualification-making it the only viable option for automotive-grade 5V high-speed serial port protection in space-constrained designs.

Availability

D5V0F1U2LP3Q is available at Aetrix Electronics and suitable for USB 3.0 interface protection, automotive HDMI 2.0 ports, and SATA III data links requiring stable component supply across production lifecycles.

Supply support for D5V0F1U2LP3Q 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 North America.

D5V0F1U2LP3Q belongs to Diodes' low-capacitance TVS portfolio, engineered specifically for ESD protection of high-speed digital interfaces in automotive and consumer electronics where signal fidelity and AEC-Q101 compliance are mandatory.

FAQ

What is the maximum operating temperature for D5V0F1U2LP3Q?

The D5V0F1U2LP3Q is rated for continuous operation from -65°C to +150°C junction temperature. Its thermal resistance (RθJA = 500°C/W) assumes mounting on a standard FR-4 PCB with 2oz copper per Diodes' recommended pad layout, enabling reliable use in under-hood automotive environments and thermally constrained industrial enclosures.

Does D5V0F1U2LP3Q require external biasing or control signals?

No. D5V0F1U2LP3Q is a passive, two-terminal TVS diode that operates without biasing, control inputs, or configuration. It functions solely as a voltage-triggered clamp: conducting only during overvoltage transients above its 6.0V breakdown threshold, remaining high-impedance during normal 5.5V operation with <100nA leakage.

Can D5V0F1U2LP3Q protect bidirectional data lines like RS-485?

No. D5V0F1U2LP3Q is unidirectional and protects only positive-going transients from signal line to ground. For bidirectional lines such as RS-485, a symmetric (bidirectional) TVS like D5V0F1B2LP3Q or SMAJ5.0CA is required to clamp both polarities while maintaining common-mode noise rejection.

How does the 0.5pF capacitance impact USB 3.0 signal integrity?

At 0.5pF, D5V0F1U2LP3Q introduces negligible capacitive loading on USB 3.0 differential pairs-preserving rise/fall times, minimizing insertion loss below 5GHz, and avoiding eye diagram closure. Measured data confirms <0.1dB additional loss at 2.5GHz, ensuring full compliance with USB-IF electrical specifications without requiring channel re-tuning.