E5V0SBP1A-HAF: Compact, Low-Capacitance ESD Protection for Reliable Electronic Systems
As electronic systems continue to evolve toward higher integration, smaller form factors, and faster signal speeds, electrostatic discharge (ESD) has become one of the most critical reliability challenges for designers. Sensitive ICs used in industrial, automotive, and consumer electronics are increasingly exposed to transient events caused by human handling, cable discharge, and switching operations.
The E5V0SBP1A-HAF ESD Protection Diode from Topdiode is designed to address these challenges by providing robust ESD protection, low clamping voltage, and minimal impact on signal integrity, all in a compact DFN0603 package.
Product Overview and Package Design
E5V0SBP1A-HAF is a bidirectional ESD protection diode optimized for low-voltage interfaces and power lines. It is manufactured using a halogen- and antimony-free (HAF) process and is fully RoHS compliant, making it suitable for environmentally conscious and long-lifecycle applications.
The device is offered in a DFN0603 surface-mount package, enabling easy integration into space-constrained PCB layouts and high-density designs.
The symmetrical structure allows flexible placement in circuit layouts while maintaining consistent ESD performance in both current directions.
Robust ESD Protection Capability
The primary function of an ESD protection device is to safely divert high-energy transient currents away from sensitive components. E5V0SBP1A-HAF delivers strong protection performance under standardized test conditions.
Under an 8/20 μs pulse waveform, the device supports a peak pulse power (PPK) of 90 W and a peak pulse current (IPP) of up to 7 A. In addition, it complies with IEC 61000-4-2, providing ESD immunity up to ±30 kV for both air and contact discharge.
This level of protection makes the device suitable for applications where frequent user interaction or exposed connectors increase the likelihood of ESD events.
Low Clamping Voltage for Enhanced IC Protection
During an ESD event, the clamping voltage determines how much stress is transferred to downstream ICs. A lower clamping voltage helps minimize damage and improves long-term system reliability.
E5V0SBP1A-HAF demonstrates stable and predictable clamping behavior:
Approximately 9 V at 1 A
Approximately 10.5 V at 5 A
Approximately 12.5 V at 7 A (8/20 μs waveform)
Transient Line Pulse (TLP) testing further confirms fast response and effective voltage suppression under sub-nanosecond rise times, which closely resemble real-world ESD conditions
Figure 2. Clamping voltage and TLP characteristics
Low Leakage and Low Capacitance Performance
In normal operating conditions, ESD devices should remain electrically transparent to the circuit. E5V0SBP1A-HAF features a reverse working voltage (VRWM) of 5 V and a maximum reverse leakage current of only 0.1 μA, minimizing power loss and thermal stress.
Equally important, the device exhibits low junction capacitance, with a typical value of 16 pF at 0 V and 1 MHz, decreasing as reverse voltage increases. This characteristic ensures minimal signal distortion and makes the device suitable for applications where signal integrity is critical.
Thermal and Environmental Reliability
The E5V0SBP1A-HAF is designed for demanding environments. It supports a maximum junction temperature of 125°C and a storage temperature range from –55°C to +150°C, enabling reliable operation across industrial and automotive temperature profiles.
Power derating behavior is clearly defined, allowing engineers to design with confidence even under elevated ambient temperatures.
Typical Applications
Thanks to its balanced electrical performance and compact form factor, E5V0SBP1A-HAF is well suited for a wide range of applications, including:
Industrial control and automation interfaces
Consumer electronics I/O ports
Automotive low-voltage signal and power lines
General-purpose 5 V power and control circuits
The E5V0SBP1A-HAF ESD Protection Diode combines high ESD immunity, low clamping voltage, low leakage current, and small package size into a single, reliable solution. It provides effective protection for sensitive electronics while maintaining signal integrity and design flexibility.
For designers seeking a cost-effective and reliable ESD protection device for modern electronic systems, E5V0SBP1A-HAF offers a compelling solution backed by Topdiode’s commitment to quality and long-term supply support.
