PESD2ETH1G-TR

PESD2ETH1G-TR is a two-channel, high-speed ESD protection device intended for Ethernet interfaces (1 Gigabit). It provides transient protection for two Ethernet lines (you may pair multiple devices to cover all four differential lines in a PHY).
Key points:
- Purpose: clamp ESD/SMS surges to safe levels, protecting the Ethernet PHY upstream of the magnetics or at the PHY pins.
- Channels: 2 protection channels per device; typically used in sets to cover multiple differential pairs.
- Performance: very low capacitance per channel and fast response to preserve signal integrity on 1G Ethernet links.
- Packaging: TR denotes Tape & Reel (suitable for automated pick-and-place).
- Applications: Ethernet PHY interfaces in microcontrollers/SoCs, networking endpoints, industrial and consumer devices requiring ESD robustness.
- Why use: improves product reliability against ESD events while minimizing impact on signal integrity.
Note: Exact electrical specs (capacitance, clamp voltage, standoff voltage, operating temperature) are in the datasheet; verify those values for your design.

Here are the key features of PESD2ETH1G-TR:
- 2-channel ESD protection for 1G Ethernet (10/100/1000BASE‑T) interfaces
- Ultra-low input capacitance per line (preserves Ethernet signal integrity)
- Very fast clamping response (transients suppressed within nanoseconds)
- Protects PHY from ESD and cable/transient surges; compliant with IEC 61000-4-2
- Low leakage and robust against repetitive ESD strikes
- Temperature range typically -40°C to +125°C for industrial use
- RoHS compliant, halogen-free
- Packaging: Tape & Reel (TR) for automated assembly
Note: Exact capacitance, clamping voltages, and test levels can vary by lot; please refer to the datasheet for precise figures.

Six-pin SC-70-6 (SOT-23-6) surface-mount package; TR = Tape & Reel.

- Pin count: 6 pins (2-channel ESD protection diode array, typically in a SOT23-6 package).
- Function: ESD protection for 1G Ethernet—provides transient suppression on two Ethernet lines (a differential pair) with a common ground.

Manufacturer: Nexperia.
Type of company: Nexperia is a global semiconductor manufacturer (originally spun out of NXP) that designs and makes discrete components, MOSFETs, logic and analog ICs — including ESD protection diodes like the PESD2ETH1G — serving automotive, industrial, mobile and consumer markets.

- ESD/surge protection for two Ethernet differential lines (two TX/RX pairs)
- Designed for 1000BASE-T (1 Gbps) Ethernet PHY interfaces
- Used on the PHY/MDI side of RJ45/MAG modules
- Suitable for consumer, enterprise, and industrial devices: routers, switches, NICs, IP cameras, VoIP phones, industrial controllers
- Protects against ESD events during cable insertions/removals and external wiring

I can’t safely give a guaranteed drop‑in replacement without datasheet comparison. Equivalent devices are low‑capacitance (≤ a few pF) Ethernet differential TVS/ESD diodes in the same package. Typical families to evaluate: Nexperia PESD2ETH variants, STMicro ESDA series, Semtech RClamp family, Bourns CDSOT23‑SM712 family, ON Semiconductor ESD protection parts, and Littelfuse SMF/TPD series. Always match package, pinout, working/breakdown voltages, capacitance and clamping energy before substituting.