onsemi SZESD7008MUTAG

Overview

SZESD7008MUTAG from onsemi is an ultra-low-capacitance ESD protection diode array designed to safeguard eight high-speed differential data lines (four pairs) in interfaces such as HDMI 1.4, USB 3.0, Thunderbolt, DisplayPort, V-by-One HS, and LVDS. It delivers 0.12 pF typical junction capacitance (I/O-to-GND), ±15 kV IEC 61000−4−2 contact/air ESD rating, and 10 V clamping voltage at 1 A (8×20 µs pulse), enabling signal integrity preservation in 10 Gb/s applications.

For engineers reviewing the SZESD7008MUTAG datasheet, pinout, applications, or equivalent options, key selection criteria include I/O-to-GND capacitance ≤0.15 pF, IEC 61000−4−2 Level 4 compliance, flow-through routing compatibility, AEC−Q101 qualification, and UDFN18 package footprint for high-density PCB layout of multi-lane serial interfaces.

Technical Context

The SZESD7008MUTAG integrates eight unidirectional ESD protection diodes in a single UDFN18 package, each configured between an I/O line and GND. Its architecture supports simultaneous protection of four differential pairs without internal cross-coupling, maintaining matched trace lengths via flow-through pin assignment (Pins 1–2, 4–5, 7–8, 10–11 as I/O pairs).

It operates across −55°C to +125°C junction temperature, with 5.0 V reverse working voltage and 5.5–6.7 V breakdown voltage per I/O line. Clamping performance is validated under IEC 61000−4−2 ±8 kV contact discharge and TLP pulses up to ±16 A, delivering ≤18.2 V clamping at peak current.

Key Specifications

Pinout & Package

Package: UDFN18 (Case 517BV), 5.5 mm × 1.5 mm body, 0.5 mm pitch, exposed thermal pad, Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD4E05U06DQAR and SP3208-01FTG, SZESD7008MUTAG uniquely combines sub-0.13 pF capacitance, UDFN18 flow-through routing, and AEC−Q101 qualification - making it the only option validated for production use in automotive-grade 10 Gb/s differential interfaces like Thunderbolt and V-by-One HS.

Availability

SZESD7008MUTAG is available at Aetrix Electronics and suitable for HDMI 1.4, USB 3.0, Thunderbolt, and V-by-One HS applications requiring stable component supply, automotive-grade reliability, and high-speed signal integrity preservation.

Supply support for SZESD7008MUTAG 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and ESD protection solutions for automotive, industrial, and consumer markets.

SZESD7008MUTAG belongs to onsemi's ESD7008 family of ultra-low-capacitance diode arrays, engineered specifically for protecting multi-gigabit differential data lines in next-generation display and connectivity interfaces.

FAQ

What is the maximum operating junction temperature for SZESD7008MUTAG?

The SZESD7008MUTAG has a specified operating junction temperature range of −55°C to +125°C. This wide range supports deployment in automotive under-hood and infotainment systems, industrial controllers, and consumer devices subject to thermal cycling. The device maintains its 0.12 pF capacitance and ±15 kV ESD rating across this full range, as verified in onsemi's AEC−Q101 stress testing protocol.

Does SZESD7008MUTAG require all six GND pins to be connected?

No - the SZESD7008MUTAG requires only a minimum of one GND pin connection to function correctly across all eight I/O lines. However, connecting multiple GND pins (e.g., Pins 3, 6, 9, 13, 15, 17) reduces ground path inductance and improves clamping consistency during multi-pin ESD events. The datasheet explicitly states "Only minimum of one pin needs to be connected to ground for functionality of all pins."

Is SZESD7008MUTAG compatible with lead-free reflow soldering processes?

Yes - SZESD7008MUTAG is Pb-free and rated for lead-free reflow with a maximum lead solder temperature of 260°C for 10 seconds. Its UDFN18 package (Case 517BV) complies with J-STD-020 moisture sensitivity level (MSL) 1, eliminating bake requirements prior to assembly. The exposed thermal pad enhances heat dissipation during soldering and in-system operation.

How does the 0.02 pF capacitance mismatch specification impact differential pair performance?

The 0.02 pF maximum capacitance mismatch between any two I/O pins of SZESD7008MUTAG ensures <1% skew in propagation delay across protected differential lanes. In practice, this preserves eye diagram symmetry at 10 Gb/s (Thunderbolt), prevents common-mode noise conversion, and avoids bit-error-rate degradation - as demonstrated in Figures 12–14 of the official datasheet.

Can SZESD7008MUTAG be used to protect bidirectional data lines like I²C or UART?

No - SZESD7008MUTAG is configured as unidirectional (anode-to-I/O, cathode-to-GND) and is optimized for high-speed differential signaling with defined DC bias (e.g., 0 V common-mode). It lacks symmetrical clamping for bidirectional logic-level signals and does not meet the low-leakage (<100 nA) or rail-to-rail voltage swing requirements of I²C or UART. Use dedicated bidirectional ESD arrays like ESD7L5.0DT5G instead.