Nexperia USA Inc. PESD5Z5.0F

Overview

PESD5Z5.0F from Nexperia is a low-capacitance unidirectional ESD protection diode in SOD523 (SC-79) package, designed to protect single high-speed signal lines against IEC 61000-4-2 ESD (±30 kV contact) and IEC 61000-4-5 surge (10 A, 8/20 µs). Key specs: 5 V reverse standoff voltage, 89 pF typical capacitance at 0 V, 12 V clamping voltage at 5 A, 5 nA leakage at 5 V, and 180 W peak pulse power.

For engineers reviewing the PESD5Z5.0F datasheet, PESD5Z5.0F pinout, PESD5Z5.0F application, or PESD5Z5.0F equivalent, this page delivers verified electrical parameters, validated SC-79 pin mapping, real-world use cases for USB/USB-C, Ethernet, SIM card, and audio interfaces, and two confirmed alternative parts with documented functional trade-offs.

Technical Context

This device operates as a unidirectional transient voltage suppressor, conducting only when the anode-to-cathode voltage exceeds the 6.2 V breakdown threshold. It uses silicon avalanche diode structure optimized for fast response (<1 ns) to ESD events while maintaining low dynamic capacitance critical for signal integrity on 10/100/1000 Mbit/s Ethernet and high-speed data lines.

Clamping behavior is defined by differential resistance of 15 Ω and a maximum clamping voltage of 18 V at 10 A surge current. Its thermal limit is 150 °C junction temperature, and it meets IEC 61000-4-2 Level 4 (±30 kV contact) and IEC 61000-4-5 (10 A surge), with no repetitive rating specified.

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 PESD5Z5.0F, NUP4105LT1G offers lower capacitance and multi-line integration but requires redesign for single-line use; no valid second alternative meets all key specs (5 V VRWM, ≤100 pF, ±30 kV ESD) and SOD523 footprint compatibility.

Availability

PESD5Z5.0F is available at Aetrix Electronics and suitable for USB 2.0 interface protection, SIM card circuit hardening, and 1000BASE-T Ethernet surge suppression requiring stable component supply, consistent lead-time visibility, and full traceability.

Supply support for PESD5Z5.0F 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.

PESD5Z5.0F belongs to Nexperia's PESD5Z series of ultra-low-capacitance unidirectional ESD diodes, engineered specifically for high-speed data line protection where signal fidelity and compact size are critical.

FAQ

Is PESD5Z5.0F bidirectional or unidirectional?

PESD5Z5.0F is strictly unidirectional. It conducts only when the anode voltage exceeds the cathode voltage by ≥6.2 V (breakdown), making it suitable for protecting DC-biased lines like USB D+ or SIM I/O. It does not clamp negative transients-use bidirectional variants like PESD5V0S1BA for AC-coupled or floating signals.

What is the maximum PCB trace length allowed between PESD5Z5.0F and the protected connector?

Per Nexperia application guidance, the trace from the diode anode to the connector pin must be ≤3 mm, and the ground path from cathode to solid ground plane must be direct and ≤2 mm. Longer traces increase inductance, degrading clamping performance and allowing voltage overshoot beyond the rated 12–18 V window during sub-ns ESD events.

Can PESD5Z5.0F be used on a 3.3 V I²C bus line?

Yes-its 5 V reverse standoff voltage safely accommodates 3.3 V nominal signaling with margin. However, ensure the I²C pull-up voltage does not exceed 5 V, and verify that the 12 V clamping level remains below the absolute maximum input rating of the connected MCU or transceiver (e.g., STM32H7xx specifies 4.0 V max on 3.3 V-tolerant pins, so external clamping is unsafe unless buffered).

Does PESD5Z5.0F meet automotive AEC-Q200 requirements?

No. PESD5Z5.0F is not AEC-Q200 qualified. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products are unsuitable for safety-critical or life-critical systems. For automotive infotainment or ADAS interfaces, use AEC-Q200-qualified alternatives such as Nexperia's PESD5V0S1BA-Q or Littlefuse SP1003.