PESD2ETHAX-QR

PESD2ETHAX-QR is a QR-based bridge that lets PESD-originated data, credentials, or permissions be consumed by the ETHAX ecosystem (wallets, dApps, or services) without manual entry.
Key ideas:
- What it does: converts a PESD payload into a scannable QR; the ETHAX app reads the QR, verifies the payload, and executes a corresponding action (permission grant, asset operation, or identity attestation).
- How it works: PESD creates a data payload (often signed and optionally encrypted); a QR code is generated from that payload; an ETHAX-enabled device scans the code, validates the signature and timing, and completes the action on-chain or within the app. The QR is typically one-time use and expiry-protected.
- Benefits: offline-friendly, reduces typing errors, enables secure, cryptographic attestation and cross-system interoperability.
- Security tips: protect keys, use short-lived codes, prevent replay attacks, minimize exposed data, beware phishing.
- Use cases: cross-system authentication, credential exchange, and permission/asset transfers between PESD and ETHAX.
If you have a specific spec or repo, share it for a precise overview.

Equivalent parts are other 2-channel Ethernet/High-speed ESD protection arrays. Notable families: TI TPD2E0x series, ST ESDA6x/ESD6Vx, Onsemi ESD protection arrays, and Nexperia PESD2xx family. Exact cross references depend on operating voltage, input capacitance, and package (QR). Please provide voltage, capacitance, and package to give precise part numbers.

Here are the key features of PESD2ETHAX-QR:
- 2-channel ESD protection device for Ethernet PHY lines (Tx/Rx)
- Ultra-low line capacitance per channel to preserve 10/100/1000 Mbps performance
- Bidirectional protection to GND with low leakage
- Robust IEC 61000-4-2 ESD protection (high rating for contact/air discharges)
- Suitable for Ethernet interfaces with or without magnetics
- Very small package; QR (tape-and-reel) packaging for automated assembly
- RoHS-compliant and designed for wide operating temperature ranges

Pin count: 3 pins (SOT-23-3 package; two signal pins and a ground).
Function: Dual-channel ESD protection diode array for Ethernet. It provides bidirectional clamping to ground on two Ethernet data lines to protect the PHY from electrostatic discharge.

- Manufacturer: Nexperia
- What kind of company: A global semiconductor company based in the Netherlands, specializing in discrete semiconductors, ESD protection devices, and related logic/mixed-signal components.

PESD2ETHAX-QR is a two-channel ESD protection diode array for Ethernet lines. Applications include:
- Protecting Ethernet PHY/MAC interfaces and RJ-45 magnetics in 10/100/1000BASE-T transceivers
- Differential pair protection with low parasitic capacitance to preserve signal integrity
- Suitable for consumer networking gear (routers, switches, NICs), industrial Ethernet equipment, and automotive Ethernet peripherals
- Used on PCBs near connectors in QR-packaged surface-mount designs to simplify assembly and improve reliability.

PESD2ETHAX-QR comes in a 6‑pin SMD package (SC‑70/SOT‑23‑6 family). For the exact footprint, refer to the datasheet.