onsemi ESDR0502NMUTBG

Overview

ESDR0502NMUTBG from onsemi is a unidirectional ESD protection diode array in UDFN6 package, designed for high-speed data line protection with 0.3 pF typical junction capacitance, 5.5 V working peak reverse voltage, and 8 kV IEC 61000−4−2 contact ESD rating-used to safeguard USB 2.0 D+/D− and VBUS lines against electrostatic discharge.

For engineers reviewing the ESDR0502NMUTBG datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, clamping voltage under IEC 61000−4−2 Level 4, unidirectional topology, UDFN6 footprint compatibility, and compliance with USB 2.0 interface protection requirements.

Technical Context

The ESDR0502NMUTBG integrates four unidirectional ESD protection diodes in a single UDFN6 package: two for D+ and D− lines referenced to GND, one for VBUS-to-GND protection, and one NC terminal. Its clamping behavior is defined per IEC 61000−4−2 waveform with 8 kV contact discharge capability and 3.0 A peak pulse current handling.

It operates across −40°C to +125°C junction temperature range, supports 5.5 V DC working voltage, and delivers sub-0.6 pF maximum capacitance between I/O pins and ground at 1 MHz-enabling minimal signal distortion on 480 Mbps USB 2.0 differential pairs.

Key Specifications

Pinout & Package

ESDR0502NMUTBG uses the UDFN6 (Case 517AA) package: 1.20 mm × 1.00 mm × 0.50 mm body, 0.40 mm pitch, wettable flank terminations. Pin 1 = GND, Pin 4 = D+, Pin 5 = D−, Pin 6 = VBUS; Pins 2 and 3 are no-connect (NC).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD2E001DRYR and ESD9X5.0ST5G, the ESDR0502NMUTBG uniquely combines 0.3 pF capacitance, integrated 4-line protection, and USB 2.0–optimized clamping in a space-constrained UDFN6 package-making it the only option that simultaneously satisfies high-speed data integrity, compact layout, and full-port ESD coverage.

Availability

ESDR0502NMUTBG is available at Aetrix Electronics and suitable for USB 2.0 interface protection, flat-panel display data line shielding, and portable audio device port hardening requiring stable component supply and long-term lifecycle support.

Supply support for ESDR0502NMUTBG 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 delivering energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, medical, and IoT applications.

The ESDR0502NMUTBG belongs to onsemi's ESD protection diode array product line, engineered specifically for high-speed serial interface protection where sub-0.5 pF capacitance and IEC 61000−4−2 Level 4 compliance are mandatory.

FAQ

What is the maximum operating temperature for ESDR0502NMUTBG?

The ESDR0502NMUTBG has a specified operating junction temperature range of −40°C to +125°C. This allows deployment in demanding environments such as automotive infotainment systems or industrial USB peripherals. The device maintains its 0.3 pF capacitance and ≤12 V clamping performance across this full range, and thermal derating is not required up to +125°C junction temperature. ESDR0502NMUTBG's UDFN6 package supports efficient heat dissipation through its exposed pad design.

Does ESDR0502NMUTBG support bidirectional ESD protection?

No, ESDR0502NMUTBG is a unidirectional ESD protection array. Its internal diodes are configured with cathodes tied to GND, enabling clamping only for positive transients on D+, D−, and VBUS. It does not protect against negative excursions beyond the silicon diode forward voltage (~0.7 V). For true bidirectional protection, a separate solution like ESDR0504NMUTBG would be required. ESDR0502NMUTBG's unidirectional architecture ensures zero leakage during normal USB 2.0 signaling.

What is the clamping voltage of ESDR0502NMUTBG under IEC 61000−4−2 testing?

The ESDR0502NMUTBG exhibits a clamping voltage of ≤12 V when subjected to the IEC 61000−4−2 8 kV contact discharge waveform at 3.0 A peak pulse current. This value is measured across the device terminals during the transient event and reflects the maximum voltage imposed on the protected IC. The low clamping level-combined with 0.3 pF capacitance-ensures downstream USB controllers remain within safe operating limits. ESDR0502NMUTBG's clamping performance is validated per onsemi Application Note AND8307/D.

Can ESDR0502NMUTBG be used for HDMI or DisplayPort interfaces?

ESDR0502NMUTBG is not recommended for HDMI or DisplayPort interfaces. While its 0.3 pF capacitance meets basic high-speed requirements, its 5.5 V VRWM and unidirectional topology are mismatched to HDMI's 3.3 V common-mode and bidirectional AC-coupled signaling. Additionally, HDMI requires ≥10 kV ESD rating and tighter clamping (<8 V) for TMDS lines. ESDR0502NMUTBG is optimized for USB 2.0's 5 V DC-coupled, unidirectional architecture-not for differential AC-coupled video protocols. Use dedicated HDMI ESD arrays instead.

Is ESDR0502NMUTBG compatible with automated optical inspection (AOI) after reflow?

Yes, ESDR0502NMUTBG's UDFN6 package features wettable flank terminations and a 0.40 mm pitch, making it fully compatible with standard AOI systems after lead-free reflow. The package's coplanarity (<0.05 mm) and consistent solder joint geometry enable reliable solder paste inspection and post-reflow defect detection-including bridging, insufficient solder, and tombstoning. Its Pb-free and RoHS-compliant construction also aligns with IPC-A-610 Class 2/3 inspection criteria. ESDR0502NMUTBG's marking (D/M code) is laser-etched for high-contrast readability during AOI.