PRTR5V0U2X – Ultra Low Capacitance Double Rail-to-Rail ESD Protection Diode

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June 13, 2026

Basic Product Information

Part Number: PRTR5V0U2X

Field Value
Manufacturer Nexperia
Device Type PRTR5V0U2X
Package SOT-143B
Compliance RoHS / REACH Compliant
Grade Industrial

Core Electrical Parameters

Parameter Value Unit
Reverse Stand-off Voltage (VRWM) 5.5 V
Breakdown Voltage (VBR) 6 ~ 9 V
Clamping Voltage (VC, Ipp=2.5A) 16 (max) V
Reverse Leakage Current (IR) < 1 nA
Junction Capacitance (Cj, I/O to GND) 1 (typ) pF
Junction Capacitance (Cj, I/O to I/O) 0.3 (typ) pF
ESD Protection (IEC 61000-4-2 Contact) 8 kV
ESD Protection (IEC 61000-4-2 Air) 15 kV
Peak Pulse Power (tp=8/20μs) 40 W
Peak Pulse Current (tp=8/20μs) 2.5 A
Operating Temperature Range -40 to +85 °C
Number of Protected Lines 2
Configuration Unidirectional

Core Features & Advantages

The PRTR5V0U2X delivers ultra-low capacitance ESD protection for high-speed data lines, combining robust transient suppression with minimal signal integrity impact in a compact SOT-143B package.

  • Primary Function: Protects two high-speed data lines or high-frequency signal lines from ESD, EFT, and surge transients by providing low-impedance clamping paths to VCC and GND rails.
  • Advantages:
    • Ultra-Low Capacitance (1 pF I/O-to-GND, 0.3 pF I/O-to-I/O): Ensures negligible signal degradation on Hi-Speed interfaces such as USB 2.0 (480 Mbps) and HDMI, preserving eye-diagram margins and timing integrity.
    • Integrated Additional ESD Protection Diode: An extra diode between GND and VCC prevents supply rail charging during ESD events, guaranteeing signal line protection even when no supply voltage is present — no external capacitors required.
    • Very Low Clamping Voltage: Clamps at 16 V max at 2.5 A peak pulse current, well below the damage threshold of most 5 V CMOS ICs, providing a wide safety margin against latch-up and permanent damage.

Typical Application Scenarios

  • Industry: Consumer Electronics / Computing / Telecommunications
  • Equipment: USB 2.0 ports, HDMI/DVI interfaces, WAN/LAN networking equipment, mobile handsets, notebooks, digital cameras, PDAs
  • Use Cases:
    • USB 2.0 Port Protection: Placed directly at the USB connector to clamp ESD strikes on D+ and D− lines before transients reach the transceiver IC, with 1 pF capacitance preserving full-speed and high-speed signal quality.
    • HDMI/DVI Interface Guard: Protects TMDS data pairs in digital video links where sub-pF parasitic capacitance is critical to maintain impedance matching and minimize bit-error rates at multi-Gbps data rates.
    • WAN/LAN System ESD Shielding: Safeguards Ethernet PHY and MAC-side high-speed differential pairs from cable discharge events and electrostatic coupling in enterprise networking equipment.

Market Reference Price

Market Price Range Currency
Huaqiangbei Spot $0.02 – $0.08 USD
Overseas B2B $0.12 – $0.54 USD

Related Models Comparison

Model Difference Application
PRTR5V0U4D 4-channel version in SOT-23-6; higher channel count but larger footprint Multi-line protection (e.g., full USB 2.0 with VBUS)
PRTR5V0U2F Similar 2-line ESD diode in different package/reel configuration Equivalent USB/HDMI ESD protection
PESD5V0S1BA Single-line ESD protection in SOD-323; lower channel density Single I/O line protection, cost-sensitive designs
TPD4E05U06 4-channel ESD in USON-10; even lower capacitance (0.5 pF) but different package USB 3.0 / HDMI 2.0 ultra-high-speed interfaces