Diodes Incorporated D26V0H1U2LP16-7

Overview

D26V0H1U2LP16-7 from Diodes Incorporated is a single-channel transient voltage suppression (TVS) diode designed for ESD protection of high-speed data lines in portable electronics. It features a 26 V reverse standoff voltage, ±30 kV IEC 61000-4-2 contact/air ESD rating, 50 A peak pulse current (8/20 µs), 400 pF channel capacitance, and operates within –55 °C to +150 °C. It is deployed on USB, HDMI, and audio interfaces in smartphones and digital cameras.

For engineers reviewing the D26V0H1U2LP16-7 datasheet, D26V0H1U2LP16-7 pinout, D26V0H1U2LP16-7 application, or D26V0H1U2LP16-7 equivalent, key selection criteria include clamping voltage at 50 A (44 V), low leakage (<100 nA at 26 V), U-DFN1616-2 package compatibility with high-density PCB layouts, and compliance with RoHS 3 and halogen-free "Green" standards.

Technical Context

This TVS diode uses an avalanche breakdown structure optimized for fast response (<1 ns) to ESD transients while maintaining low dynamic impedance. Its bidirectional configuration protects both positive and negative surges without polarity dependency, and its low 400 pF input capacitance preserves signal integrity on 480 Mbps USB 2.0 lines.

The device is rated for 2200 W peak pulse power (8/20 µs), with clamping voltage rising predictably from 32 V at 1 A to 44 V at 50 A - enabling robust overvoltage limiting across surge magnitudes. Thermal resistance of 417 °C/W (junction-to-ambient, FR-4, 2 oz Cu) supports operation up to +150 °C junction temperature under derated conditions.

Key Specifications

Pinout & Package

U-DFN1616-2 surface-mount package with two terminals: Pin 1 (Anode) and Pin 2 (Cathode), exposed thermal pad not electrically connected. Molded green compound meets UL 94V-0; NiPdAu-plated copper leadframe ensures solderability per MIL-STD-202.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMAJ26A and SP1003-02HTG, D26V0H1U2LP16-7 uniquely balances 50 A surge capability, 400 pF capacitance, and 1.6 mm² footprint - making it optimal for space-constrained, high-speed portable interfaces requiring full IEC ±30 kV compliance.

Availability

D26V0H1U2LP16-7 is available at Aetrix Electronics and suitable for cellular handsets, portable media players, and USB peripheral designs requiring stable component supply across multi-year production cycles.

Supply support for D26V0H1U2LP16-7 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 and manufacturing operations across Asia and the Americas.

D26V0H1U2LP16-7 belongs to Diodes' U-DFN TVS portfolio, engineered specifically for high-density portable electronics requiring ultra-low capacitance, industry-leading ESD immunity, and green material compliance.

FAQ

What is the maximum clamping voltage of D26V0H1U2LP16-7 at 50 A?

The clamping voltage is 44 V under 8/20 µs waveform at 50 A peak pulse current, as measured per IEC 61000-4-5 Annex C. This value is guaranteed across –55 °C to +125 °C operating range and defines the maximum voltage imposed on protected circuitry during worst-case surge events.

Is D26V0H1U2LP16-7 unidirectional or bidirectional?

D26V0H1U2LP16-7 is a bidirectional TVS diode, confirmed by its symmetrical breakdown behavior and ±30 kV ESD rating for both polarities. Its schematic symbol shows back-to-back Zener configuration, enabling protection against positive and negative transients without polarity sensitivity.

Can this TVS be used on a 3.3 V logic line?

Yes - its 26 V reverse standoff voltage ensures no conduction during normal 3.3 V operation, and its 28 V minimum breakdown voltage provides >8× safety margin. The 100 nA leakage at 26 V translates to negligible loading on 3.3 V rails, preserving logic thresholds and power efficiency.

Does the U-DFN1616-2 package require special PCB layout considerations?

Yes - the recommended pad layout (X=1.40 mm, Y=0.375 mm, Y2=1.75 mm) must be followed to ensure mechanical reliability and thermal performance. A thermal relief pattern is unnecessary since the package lacks an exposed thermal pad; solder fillets should fully wet both terminals without bridging.