Diodes Incorporated D5V0F3B6LP20-7

Overview

D5V0F3B6LP20 from Diodes Incorporated is a 4-channel ESD protection diode array designed for USB 2.0 and VBUS line protection, featuring 3 bidirectional I/O channels (D+, D−, USBID) and one unidirectional VBUS channel, with clamping voltages of 12 V (I/O) and 40 V (VBUS), 0.4 pF typical I/O capacitance, and ±30 kV IEC 61000-4-2 contact ESD rating on VBUS - deployed in portable electronics such as smartphones and digital cameras.

For engineers reviewing the D5V0F3B6LP20 datasheet, D5V0F3B6LP20 pinout, D5V0F3B6LP20 application, or D5V0F3B6LP20 equivalent, key selection criteria include low-capacitance I/O protection (0.4 pF), asymmetric VBUS/I/O breakdown (28 V / 6 V), U-DFN2020-6 package compatibility, and compliance with USB 2.0 signal integrity requirements.

Technical Context

This device implements a monolithic silicon avalanche diode structure optimized for high-speed data line protection. It integrates three symmetric bidirectional TVS diodes for D+, D−, and USBID lines (VRWM = 5.5 V, VBR = 6.0–9.95 V), plus one asymmetric unidirectional TVS for VBUS (VRWM = 26 V, VBR = 28–31.9 V), enabling simultaneous differential and power-rail surge suppression.

The architecture supports transient suppression under both 8/20 µs (I/O) and 10/1000 µs (VBUS) waveforms, with dynamic resistance of 1.0 Ω on I/O paths and low leakage (<50 nA at VRWM). Its thermal design targets FR-4 PCB mounting per AP02001 layout, delivering 500 mW power dissipation and 250 °C/W junction-to-ambient thermal resistance.

Key Specifications

Pinout & Package

Package: U-DFN2020-6 (2.05 × 2.05 mm, 0.605 mm max height), molded green compound, UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 2.0 ESD protection applications.

Compared with SP1006-04UTG and ESD5V3U2U, D5V0F3B6LP20 uniquely delivers full 3+1 channel coverage (D+, D−, USBID, VBUS) with lowest certified I/O capacitance (0.4 pF) and highest VBUS surge rating (9.5 A), making it optimal for compact OTG-enabled USB 2.0 endpoints.

Availability

D5V0F3B6LP20 is available at Aetrix Electronics and suitable for smartphone USB port protection, digital camera interface protection, and portable media player charging port protection requiring stable component supply across high-volume consumer electronics production.

Supply support for D5V0F3B6LP20 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' USB-optimized TVS diode array product line, engineered specifically to meet IEC 61000-4-2 ESD immunity and USB 2.0 signal integrity requirements in space-constrained portable platforms.

FAQ

What is the maximum operating temperature for D5V0F3B6LP20?

The device operates from −65 °C to +150 °C ambient temperature. Its thermal resistance (RθJA = 250 °C/W) and 500 mW power dissipation rating assume use on an FR-4 PCB with the AP02001 recommended pad layout, including soldering of the center thermal pad (Pin 3) to maximize heat transfer.

Does D5V0F3B6LP20 support USB On-The-Go (OTG) functionality?

Yes - it explicitly protects all three required USB 2.0 OTG signals: D+, D−, and USBID, with matched low capacitance (0.4 pF) and symmetrical clamping on the data lines, plus dedicated high-energy VBUS protection essential for dual-role device operation and host negotiation.

How does the center thermal pad (Pin 3) affect PCB layout?

Pin 3 is an exposed copper thermal pad that must be soldered to a solid ground plane on the PCB. Omitting this connection increases junction temperature by ~40 °C under 9.5 A surge conditions and violates JEDEC moisture sensitivity Level 1 handling - proper pad layout per AP02001 is mandatory for reliability and thermal performance.

Can D5V0F3B6LP20 replace discrete TVS diodes in existing USB designs?

Yes - its U-DFN2020-6 footprint replaces up to four discrete 0402 TVS devices, reducing PCB area by >60% and eliminating routing inductance between protection elements. Validation requires confirming that the 0.4 pF I/O capacitance meets eye diagram margin requirements of the host PHY, especially at 480 Mbps.