PESD2ETH-AXR

PESD2ETH-AXR is a 2-channel ESD protection diode array designed for Ethernet interfaces. It protects the Ethernet PHY / MDI differential pairs (e.g., on the line side near the RJ45) from electrostatic discharges and transient surges. The device provides bidirectional clamping for each channel with very low capacitance, preserving high-speed signal integrity for 10/100/1000BASE-T. The AXR suffix denotes a specific packaging/format option (compact, reel). Typical use is to place it close to the connector or PHY to shunt ESD away from sensitive silicon. Electrical ratings (ESD level, capacitance, leakage, and operating temperature) vary by variant; refer to the latest PESD2ETH-AXR datasheet for exact figures and packaging details.

PESD2ETH-AXR features:
- 2-channel ESD protection array for Ethernet interfaces (PHY/transformer side)
- Ultra-low input capacitance per line (preserves 10/100/1000BASE-T signal integrity)
- Very fast ESD response with robust surge protection
- High ESD withstand: IEC 61000-4-2 up to 8 kV contact (and higher air-d discharge specs typically listed)
- Low leakage current; tight clamp voltage to protect downstream circuitry
- Automotive grade variant (AXR): AEC-Q qualification and extended temperature range
- Wide operating ambient range: typically -40°C to 125°C
- Compact package options (e.g., SC-70/SOT-23 family) with common ground; RoHS compliant
- Suitable for Ethernet PHY protection on both shielded and unshielded implementations
Note: Always refer to the manufacturer’s datasheet for exact electrical specs and recommended layouts.

- Pin count: 6 pins (4 signal pins for two differential Ethernet pairs, plus 2 ground pins).
- Function: ESD protection diode array for two Ethernet differential lines (TX and RX); clamps ESD surges to ground to protect the PHY interface (low input capacitance).

- Manufacturer: Nexperia.
- What kind of company: A global semiconductor company that designs and manufactures discrete components, including ESD protection devices (like PESD parts), diodes, transistors, and MOSFETs. It originated from Philips/NXP and is now an independent supplier.

PESD2ETH-AXR is a 2-channel ESD protection diode array for Ethernet interfaces. Typical applications:
- Protect Ethernet PHY/MDI TX/RX lines in 10/100/1000BASE-T networks.
- Place near RJ45 connectors or magnetics to safeguard differential pairs.
- Used in consumer, industrial, and automotive Ethernet equipment.
- Low-capacitance, bidirectional clamps to preserve signal integrity and meet IEC 61000-4-2 EMC/ESD requirements.
- Protect two differential lines (two channels) or two sides of a pair for robust ESD protection.

The PESD2ETH-AXR is in a 6-pin DFN package (2 × 3 mm).