onsemi ESDR7534W1T2G

Overview

ESDR7534W1T2G from onsemi is a 4-channel unidirectional ESD protection diode array in SC-88 (S7) package, designed for high-speed LVDS interfaces. It delivers 30 kV IEC 61000−4−2 contact/air ESD protection, clamps transients to ≤30 V at 10 A, and maintains ultra-low 1.3–2.0 pF capacitance between I/O pins and GND - enabling signal integrity preservation in 1+ Gbps differential data links.

For engineers reviewing the ESDR7534W1T2G datasheet, pinout, applications, or equivalent options, this device is selected for low-capacitance transient suppression on multi-lane high-speed serial buses where layout-constrained trace lengths and rail-referenced clamping are critical design constraints.

Technical Context

The ESDR7534W1T2G integrates four independent steering diodes (CH1–CH4) and one internal VP surge protection diode in a single SC-88 package. Each channel features a breakdown voltage of 6.0–9.5 V and clamps at ≤30 V under 10 A 2/10 µs pulse, with reverse working voltage rated at 5.0 V.

It supports three configuration modes: direct VCC referencing (pin 5 tied to supply), isolated bias via 10 kΩ resistor, or VP-floating operation using only VBR-based conduction - all maintaining sub-2 pF inter-channel capacitance and <3.0 µA leakage at VRWM.

Key Specifications

Pinout & Package

ESDR7534W1T2G is housed in a Pb-free SC-88 (Case 419B-02) package measuring 2.00 × 1.25 × 0.90 mm with 0.65 mm pitch. The 6-pin configuration supports compact placement near high-speed connectors or IC I/O pads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD4E05U06DQAR and SP3205-01UTG, the ESDR7534W1T2G uniquely balances ±30 kV ESD immunity, ≤30 V clamping, and 1.3–2.0 pF capacitance in a 2.0 × 1.25 mm SC-88 package - making it optimal for space-constrained, high-speed LVDS and MIPI D-PHY designs requiring full IEC 61000−4−2 Level 4 compliance.

Availability

ESDR7534W1T2G is available at Aetrix Electronics and suitable for LVDS display interfaces, automotive camera links, industrial MIPI D-PHY implementations, and PCIe Gen2 serial links requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ESDR7534W1T2G 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The ESDR7534W1T2G belongs to onsemi's ESD protection diode array product line, engineered specifically for high-speed digital interfaces where low capacitance, precise clamping, and multi-channel integration are mandatory for signal integrity and system reliability.

FAQ

What is the maximum clamping voltage of the ESDR7534W1T2G under IEC 61000−4−2 surge conditions?

The ESDR7534W1T2G exhibits a maximum clamping voltage of 30 V when subjected to a 10 A, 2/10 µs pulse waveform - matching the IEC 61000−4−2 Level 4 test condition. This value is measured across the I/O pin and ground terminal and ensures downstream LVDS receivers remain within absolute maximum ratings during ESD events. The ESDR7534W1T2G achieves this performance while maintaining sub-2 pF capacitance.

Can the ESDR7534W1T2G be used to protect bidirectional data lines such as MIPI D-PHY?

Yes, the ESDR7534W1T2G supports bidirectional high-speed data lines including MIPI D-PHY HS mode. Its unidirectional architecture with separate VP and VN terminals allows clamping in both polarities when configured with proper rail referencing. The 1.3–2.0 pF capacitance prevents signal degradation at 1.5 Gbps, and its ±30 kV ESD rating satisfies manufacturing ESD control requirements. The ESDR7534W1T2G has been validated in MIPI conformance testing per MIPI Alliance specifications.

What is the recommended PCB layout practice for minimizing inductance with the ESDR7534W1T2G?

To minimize parasitic inductance, connect pin 2 (VN) directly to a solid ground plane using multiple vias within 2 mm, keep I/O trace lengths from connector to ESDR7534W1T2G under 5 mm, and route VP (pin 5) with a short, low-impedance path to the local VCC plane. Avoid stubs or right-angle bends on protected lines. These practices ensure the ESDR7534W1T2G clamps transients before they reach sensitive ICs - critical for achieving specified 30 V clamping performance.

Does the ESDR7534W1T2G require an external bias resistor for operation?

No, the ESDR7534W1T2G operates without an external bias resistor when pin 5 (VP) is directly connected to the positive supply rail - enabling lowest capacitance and fastest response. However, a 10 kΩ resistor between VP and VCC is optional to isolate the power rail during transient events while maintaining diode bias. This configuration is documented in the ESDR7534W1T2G datasheet as Option 2 and preserves clamping performance while reducing coupling into the power domain.

What is the operating temperature range supported by the ESDR7534W1T2G?

The ESDR7534W1T2G is rated for junction temperatures from −55 °C to +125 °C, supporting deployment in extended industrial and automotive environments. Its electrical parameters - including 5.0 V VRWM, 30 V clamping, and 1.3–2.0 pF capacitance - are guaranteed across this full range. The SC-88 package is qualified to JEDEC J-STD-020 moisture sensitivity level 1, ensuring robustness during reflow soldering and long-term field operation. This makes the ESDR7534W1T2G suitable for under-hood automotive modules and outdoor industrial controllers.