onsemi ESD8501V5MUT5G

Overview

ESD8501V5MUT5G from onsemi is a unidirectional ESD protection diode in UDFN2 (1.6 mm × 1.0 mm) package, rated for ±30 kV IEC 61000−4−2 contact discharge, 70 A IEC 61000−4−5 lightning surge, and 5.0 V working reverse voltage - deployed to safeguard USB 2.0 data lines, HDMI interfaces, and low-voltage I/O pins in portable electronics.

For engineers reviewing the ESD8501V5MUT5G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage at 70 A (11.5 V), junction capacitance (16 pF), dynamic resistance (0.04 Ω), and compatibility with high-speed digital interfaces requiring sub-20 pF parasitic loading.

Technical Context

This device implements a silicon avalanche diode structure optimized for fast turn-on (<1 ns) and low clamping under transient stress. Its unidirectional configuration provides reverse-biased protection only - anode tied to signal line, cathode to ground - enabling precise voltage rail referencing without forward conduction during normal operation.

Clamping behavior is characterized across three defined pulse currents (1 A, 35 A, 70 A) per IEC 61000−4−5 8/20 µs waveform, with VC rising from 7.5 V to 11.5 V. Dynamic resistance of 0.04 Ω confirms low impedance conduction during ESD events, minimizing voltage overshoot across protected traces.

Key Specifications

Pinout & Package

ESD8501V5MUT5G uses the UDFN2 (Case 517CZ) surface-mount package: 1.6 mm × 1.0 mm footprint, 0.5 mm pitch, 0.55 mm max height, single-row 2-terminal configuration with exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD2E001DRYR and ESD9B5.0ST5G, ESD8501V5MUT5G offers the lowest clamping voltage (11.5 V @ 70 A) among unidirectional 5 V-rated protectors in its footprint class, while maintaining optimal capacitance (16 pF) for USB 2.0 timing margins.

Availability

ESD8501V5MUT5G is available at Aetrix Electronics and suitable for USB interface protection, HDMI control bus hardening, and industrial sensor I/O shielding requiring stable component supply and long-term production continuity.

Supply support for ESD8501V5MUT5G 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 focused on energy-efficient electronics, delivering high-performance analog, discrete, and logic solutions for automotive, industrial, cloud, and consumer markets.

ESD8501V5MUT5G belongs to onsemi's ESD Protection Diode product line, engineered specifically for high-speed digital interface protection where low capacitance, precise clamping, and compact packaging are critical design constraints.

FAQ

What is the maximum clamping voltage of ESD8501V5MUT5G under full IEC 61000−4−5 stress?

The ESD8501V5MUT5G exhibits a clamping voltage of 11.5 V when subjected to a 70 A, 8/20 µs peak pulse current per IEC 61000−4−5. This value is measured at TA = 25°C and represents the maximum voltage developed across the device during worst-case lightning surge conditions. The ESD8501V5MUT5G maintains this performance within its specified operating temperature range and is validated using Transmission Line Pulse (TLP) characterization.

Is ESD8501V5MUT5G suitable for protecting USB 2.0 high-speed data lines?

Yes, ESD8501V5MUT5G is explicitly suited for USB 2.0 data line protection due to its 16 pF junction capacitance at 0 V bias, which introduces negligible signal distortion at 480 Mbps. Its unidirectional architecture aligns with the DC bias present on D+ and D− lines, and its 5.0 V VRWM matches standard USB I/O voltage levels. The ESD8501V5MUT5G has been validated in reference layouts for USB port-level ESD robustness.

Does ESD8501V5MUT5G support bidirectional signal protection?

No, ESD8501V5MUT5G is a unidirectional ESD protection diode - it conducts only when the anode is driven positive relative to the cathode. It is not designed for AC-coupled or fully bidirectional signal paths such as HDMI TMDS or PCIe lanes. For those applications, a bidirectional alternative like TPD2E001DRYR should be evaluated instead of ESD8501V5MUT5G.

What is the operating temperature range of ESD8501V5MUT5G?

The ESD8501V5MUT5G is rated for an operating junction and storage temperature range of −65 °C to +150 °C. This wide range supports deployment in harsh environments including automotive under-hood modules, industrial PLCs, and outdoor IoT gateways. Derating of peak pulse current is not required within this range, as the device's clamping characteristics remain stable per datasheet specifications.

How does the dynamic resistance of ESD8501V5MUT5G affect its ESD performance?

The ESD8501V5MUT5G features a dynamic resistance of 0.04 Ω, measured via TLP testing. This low value ensures minimal IR voltage rise during high-current ESD events, allowing the device to clamp rapidly and maintain low overshoot. As a result, the ESD8501V5MUT5G delivers consistent clamping performance across its full 1–70 A test range, improving reliability of downstream ICs compared to higher-RDYN alternatives.