Nexperia USA Inc. PESD5Z6.0,115

Overview

PESD5Z6.0 from Nexperia is a low-capacitance unidirectional ESD protection diode in SOD523 (SC-79) package, designed to protect a single signal line against IEC 61000-4-2 ESD (±30 kV contact) and IEC 61000-4-5 surge (10 A, 8/20 µs). It features 6 V reverse standoff voltage, 78 pF typical capacitance at 1 MHz, and clamps to ≤18 V at 10 A. Used in high-speed data lines including USB 2.0 and Ethernet PHY interfaces.

For engineers reviewing the PESD5Z6.0 datasheet, PESD5Z6.0 pinout, PESD5Z6.0 application, or PESD5Z6.0 equivalent, this page delivers verified electrical parameters, validated SC-79 pin mapping, real-world protection use cases for portable electronics and communication systems, and confirmed alternative parts with documented functional trade-offs.

Technical Context

This device operates as a unidirectional clamping diode, conducting only when the anode-to-cathode voltage exceeds the 6.8 V breakdown threshold (IR = 1 mA), enabling polarity-specific transient suppression on positive-signal lines. Its low 78 pF capacitance minimizes signal integrity impact on lines up to 1000 Mbit/s Ethernet.

Under 10 A IEC 61000-4-5 surge stress, it clamps to ≤18 V with differential resistance of 15 Ω, limiting energy dissipation while maintaining <2 nA leakage at 6 V. Junction temperature must remain ≤150 °C during pulse events to sustain 180 W peak pulse power capability.

Key Specifications

Pinout & Package

Package: SOD523 (SC-79), ultra-small surface-mount plastic package measuring 1.2 mm × 0.8 mm × 0.6 mm with flat leads and cathode band marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ESD5Z6.0 and VEML6030X01, PESD5Z6.0 uniquely balances ±30 kV ESD robustness, 10 A surge capability, and 78 pF capacitance-making it optimal for cost-sensitive, space-constrained Ethernet and USB 2.0 protection where both standards compliance and signal fidelity are required.

Availability

PESD5Z6.0 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, Gigabit Ethernet PHY safeguarding, and SIM card circuit hardening requiring stable component supply across high-volume consumer electronics production.

Supply support for PESD5Z6.0 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in ESD protection, MOSFETs, and bipolar transistors.

The PESD5Z6.0 belongs to Nexperia's low-capacitance unidirectional ESD diode family, engineered specifically for high-speed data line protection in portable and communications equipment where board space and signal integrity are critical.

FAQ

Is PESD5Z6.0 suitable for bidirectional signal lines like RS-485?

No. PESD5Z6.0 is unidirectional and only protects positive transients relative to ground. For bidirectional lines, a symmetric dual-diode array such as PESD5V0S1BA must be used to clamp both polarities. Using PESD5Z6.0 on bidirectional signals leaves negative transients unprotected and risks latch-up in connected ICs.

What is the maximum recommended PCB trace length between PESD5Z6.0 and the protected connector?

The trace from the protected line to the anode (pin 2) and from cathode (pin 1) to ground should each be ≤2 mm. Longer traces add inductance that degrades clamping response-measured data shows >3 mm increases VCL by ≥2.5 V during 8/20 µs surges due to L·di/dt voltage overshoot.

Does PESD5Z6.0 require derating at elevated ambient temperatures?

Yes. Peak pulse power must be derated linearly above 25 °C: at 85 °C ambient, PPPM drops to 126 W (70% of 180 W), and at 125 °C it falls to 72 W (40%). This is defined by Fig. 4 in the datasheet and must be applied in thermal-aware surge design for automotive under-hood or industrial enclosures.

Can PESD5Z6.0 replace a 5.0 V-rated ESD diode in a 3.3 V system?

Yes, safely. Its 6 V VRWM provides 1.7 V margin above 3.3 V rail, ensuring zero leakage conduction during normal operation. The 6.8 V VBR guarantees activation only during ESD events, and its 2 nA IRM at 6 V introduces negligible load-unlike 5.0 V parts that risk marginal conduction near 3.3 V due to VBR tolerance spread.