Toshiba Semiconductor and Storage DF3A6.2LFU(TE85L,F

Overview

DF3A6.2LFU from TOSHIBA is a dual-channel ESD protection diode array designed for high-speed data lines in portable electronics, featuring 6.5 pF typical terminal capacitance, ±8 kV IEC61000-4-2 contact discharge immunity, and 6.2 V nominal zener voltage at 5 mA. It operates within −55°C to +125°C storage range and dissipates up to 100 mW.

For engineers reviewing the DF3A6.2LFU datasheet, DF3A6.2LFU pinout, DF3A6.2LFU application, or DF3A6.2LFU equivalent, key selection criteria include low-capacitance signal-line protection, dual-diode integration in ultra-compact SOT-323 package, and strict ESD-only usage compliance per Toshiba's safety restrictions.

Technical Context

This device implements two independent Zener-type ESD clamps in a single SOT-323 package, each with cathode-anode configuration optimized for bidirectional transient suppression on I/O lines. Its 6.5 pF capacitance enables use on USB 2.0, HDMI, and audio interfaces without signal integrity degradation.

The DF3A6.2LFU is rated for 5.9–6.5 V zener voltage at 5 mA, exhibits ≤50 Ω dynamic impedance, and guarantees no functional damage after ±8 kV IEC61000-4-2 contact discharge - confirming its role as a dedicated, non-power-supply ESD safeguard.

Key Specifications

Pinout & Package

DF3A6.2LFU uses a 3-pin SOT-323 (SC-70) package with dual-cathode common-anode configuration. Pin 1 and Pin 3 are cathodes; Pin 2 is the shared anode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NZQ2001DT5G, DF3A6.2LFU delivers dual-channel integration and 43% lower capacitance, enabling direct USB 2.0 placement; VEML6030X01 is invalid as it is an ambient light sensor, not an ESD suppressor.

Availability

DF3A6.2LFU is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI control channel hardening, and smartphone audio jack ESD mitigation requiring stable component supply across high-volume consumer electronics production.

Supply support for DF3A6.2LFU 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

Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on efficiency, miniaturization, and reliability for consumer, industrial, and automotive systems.

The DF3A6.2LFU belongs to Toshiba's DF series of ultra-compact ESD protection arrays, engineered specifically for space-constrained portable electronics where low capacitance and dual-line integration are critical.

FAQ

What is the primary function of the DF3A6.2LFU?

The DF3A6.2LFU is a dual-channel ESD protection diode array designed exclusively for electrostatic discharge suppression on high-speed signal lines. It is not intended for voltage regulation or continuous power dissipation. Its 6.2 V zener voltage, 6.5 pF capacitance, and ±8 kV IEC61000-4-2 rating make DF3A6.2LFU suitable for safeguarding USB, HDMI, and audio interfaces without compromising signal integrity.

Can DF3A6.2LFU be used as a Zener voltage reference?

No - the DF3A6.2LFU is explicitly restricted to ESD protection only, as stated in Toshiba's documentation. It is not characterized or guaranteed for stable DC voltage reference performance, lacks tight tolerance on dynamic impedance, and has no specified temperature coefficient or long-term stability data. Using DF3A6.2LFU as a voltage reference violates its designated function and may result in unreliable circuit behavior.

What is the pin configuration of DF3A6.2LFU and how is it mounted?

DF3A6.2LFU uses a 3-pin SOT-323 (SC-70) package with pins arranged as Cathode–Anode–Cathode (Pin 1–2–3). Pin 2 is the common anode tied to ground, while Pins 1 and 3 serve as independent cathodes for two protected signal lines. Mounting requires standard reflow soldering per JEDEC J-STD-020; thermal pad is not present.

Does DF3A6.2LFU meet RoHS and REACH requirements?

Yes - DF3A6.2LFU complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed by Toshiba's environmental compliance documentation. Lead-free solderability and halogen-free construction are standard. For full material declarations and test reports, refer to Toshiba's official product page or contact Aetrix Electronics for certified documentation supporting DF3A6.2LFU procurement.

What is the expected lifetime and reliability of DF3A6.2LFU under repeated ESD events?

DF3A6.2LFU is qualified per JEDEC standards and rated for ≥1000 ESD strikes at ±8 kV contact discharge without parametric shift or functional failure, assuming proper PCB layout (short traces, low-inductance ground). Its 125°C maximum junction temperature and derating guidance in Toshiba's Reliability Handbook ensure sustained performance in commercial and industrial environments when used within absolute maximum ratings.