NXP Semiconductors PESD5V0C1USF/S50YL

Overview

PESD5V0C1USF from Nexperia is a unidirectional ESD protection diode in a DSN0603-2 (SOD962-2) leadless SMD package, designed for single-line signal protection with 0.45 pF typical capacitance, ±20 kV IEC 61000-4-2 ESD robustness, and 5 V reverse standoff voltage - deployed on ultra-high-speed data lines in portable electronics and communication interfaces.

For engineers reviewing the PESD5V0C1USF datasheet, PESD5V0C1USF pinout, PESD5V0C1USF application, or PESD5V0C1USF equivalent, this device is selected for low-capacitance transient suppression where signal integrity at GHz frequencies, minimal insertion loss, and fast clamping response (<30 ns) are critical in USB 3.2, HDMI 2.1, MIPI D-PHY, and PCIe Gen 4 interface protection.

Technical Context

The PESD5V0C1USF operates as a unidirectional clamping diode, conducting only when forward-biased or during negative ESD transients relative to ground, with a typical breakdown voltage of 5.5 V and clamping voltage of 2.2 V at 8 A TLP pulse. Its dynamic resistance is 0.1 Ω, enabling rapid energy diversion without signal distortion.

It is optimized for high-frequency signal paths: capacitance remains stable below 0.5 pF up to 4 GHz (Fig. 5), and insertion loss stays below –20 dB across 0–4 GHz (Fig. 6), confirming suitability for >5 Gbps serial links. The device is not rated for DC supply line protection and requires placement within 2 mm of the connector per layout guidelines.

Key Specifications

Pinout & Package

Package: DSN0603-2 (SOD962-2), leadless ultra-small SMD, 0.6 mm × 0.3 mm × 0.3 mm body, 0.4 mm pitch, compatible with reflow soldering using recommended stencil thickness of 0.1 mm (Fig. 14).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ESDBL5V0D1W and VEML509001, the PESD5V0C1USF delivers optimal balance of ultra-low capacitance (0.45 pF), industry-leading ±20 kV ESD immunity, and verified 2.2 V clamping at 8 A - making it preferred for high-speed interfaces where both signal fidelity and transient robustness are non-negotiable.

Availability

PESD5V0C1USF is available at Aetrix Electronics and suitable for USB 3.2, HDMI 2.1, MIPI D-PHY, and PCIe Gen 4 applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing for volume production.

Supply support for PESD5V0C1USF 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 leading semiconductor manufacturer specializing in high-performance, high-reliability discrete, logic, and MOSFET solutions, with global R&D and manufacturing facilities.

The TrEOS Protection family, including the PESD5V0C1USF, is engineered specifically for ultra-high-speed interface protection - targeting ESD robustness, minimal signal loading, and compact integration in next-generation portable and computing platforms.

FAQ

What is the primary circuit role of the PESD5V0C1USF?

The PESD5V0C1USF serves as a unidirectional ESD protection diode, placed in shunt between a high-speed signal line and ground to clamp transient overvoltages. Its role is to divert ESD current away from sensitive receiver inputs while maintaining signal integrity via ultra-low capacitance. The PESD5V0C1USF achieves this with 0.45 pF capacitance and 2.2 V clamping at 8 A TLP, making it ideal for USB 3.2 and HDMI 2.1 interfaces.

Can the PESD5V0C1USF be used on bidirectional data lines like I²C or UART?

No - the PESD5V0C1USF is unidirectional and only protects signals with defined polarity relative to ground (e.g., positive-only or negative-only swings). Using it on true bidirectional lines such as I²C may result in unintended conduction during normal signaling. For bidirectional protection, a dedicated bidirectional ESD diode like the PESD5V0U1BB must be selected instead of the PESD5V0C1USF.

What is the maximum recommended PCB trace length between the PESD5V0C1USF and the protected connector?

Per Nexperia's application guidance (Section 10), the PESD5V0C1USF should be placed within 2 mm of the input connector or terminal to minimize inductance in the transient return path. Longer traces increase clamping voltage due to L·di/dt effects - for example, a 5 mm trace can raise effective clamping by >0.5 V during 8 A TLP pulses. This requirement is critical to achieving the specified 2.2 V clamping performance of the PESD5V0C1USF.

Does the PESD5V0C1USF support DC power rail protection?

No - the PESD5V0C1USF is explicitly not designed for DC supply line protection, as stated in Section 10 of its datasheet. Its 5 V VRWM and unidirectional structure make it unsuitable for clamping overvoltage on VCC or VDD rails. Using the PESD5V0C1USF on power lines risks premature breakdown, thermal runaway, or failure to suppress surges. Dedicated TVS diodes like the PESD5V0S1BA are required for power-rail ESD protection.

How does the PESD5V0C1USF perform at frequencies above 1 GHz?

The PESD5V0C1USF maintains ≤0.5 pF capacitance up to 4 GHz (Fig. 5) and exhibits <–20 dB insertion loss across 0–4 GHz (Fig. 6), confirming minimal RF signal attenuation. Its 30 ns clamping response (Fig. 10/11) and 0.1 Ω dynamic resistance ensure effective transient suppression without distorting multi-GHz eye diagrams. These characteristics are measured and validated - not estimated - making the PESD5V0C1USF suitable for PCIe Gen 4 reference clocks and MIPI D-PHY at 2.5 Gbps.