Circuit & System Protection


Steering diode/TVS arrays

21 March 2018 Circuit & System Protection

ProTek Devices has added two steering diode/transient voltage suppressor (TVS) arrays that provide circuit protection for a wide variety of applications, such as telecommunications interfaces, computing interfaces, video cards and more. One of the new devices can also be used to guard against electromagnetic interference/radio frequency interference.

The PLR4045 provides ultra-low capacitance of 1,6 pF while delivering circuit protection for critical applications. These applications include 2.5GBASE-T, T1/E1 and T3/E3 chip-side protection, DVI interfaces and USB 2.0 interfaces. It is rated at 600 Watts peak pulse power (8/20 microseconds waveform). It is compatible with IEC standards 61000-4-2 (ESD): air ±15 kV, contact ±8 kV; 61000-4-4 (EFT); and 61000-4-5 (surge).

At higher operating frequencies, or faster edge rates, insertion loss and signal integrity are a major concern. The PLR4045, in conjunction with passive components integrated into a TVS/filter network, can be used for EMI/RFI protection. ESD protection is > 25 kV. The device also offers unidirectional configuration, a low clamping voltage of 20 V at IPPM = 30 A, and protects four I/O ports and a power supply.

The PSRV2.8-2LC is an addition to the PSRV-2LC series of low-capacitance (1 pF typical) steering diode /TVS arrays, and offers a 2,8 V rated standoff voltage. The component is ideal for circuit protection in Ethernet 10/100/1000 Base T, USB, handheld electronics, video cards, WAN/LAN and similar equipment. This series is designed to protect two line pair or four data/transmission lines from the effects of ESD and EFT.

The PSRV2.8-2LC is ideal for low-voltage circuit applications and the low capacitance of the steering diode allows the designer to protect high-speed data applications. This device is compatible with IEC standards 61000-4-2 (ESD): air: ±15 kV, contact: ±8 kV; 61000-4-4 (EFT): 40 A - 5/50 ns; and 61000-4-5 (surge): 24 A, 8/20 microseconds, level 2 (LineGnd) and level 3 (Line-Line). It features 300 Watts peak pulse power per line (typical = 8/20 microseconds), and provides two lines of protection and low leakage current of less than 1,0 μA. Other rated standoff voltages in the series include 3,3 V and 5 V. The leakage current for the 3,3 V device is less than 1,0 μA.

For more information contact Jeva Narian, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected], www.arrow.altech.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Why wait to automate
NewElec Pretoria Circuit & System Protection
NewElec’s initiative helps you gain operational visibility via HMI or PLC by retrofitting intelligent motor protection relays without replacing MCCs or rewiring the plant.

Read more...
Ultra-low-power wireless module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The STM32WBA5MMG from STMicroelectronics is an ultra-low-power, small form factor, certified 2,4 GHz wireless module that supports Bluetooth LE, Zigbee 3.0, OpenThread, and IEEE 802.15.4 proprietary protocols.

Read more...
16-channel multicell battery monitor
Altron Arrow Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.

Read more...
Bringing Bluetooth Channel Sounding to automotive and beyond with KW47
Altron Arrow Telecoms, Datacoms, Wireless, IoT
NXP’s new Channel Sounding-certified KW47 and MCX W72 wireless MCUs are set to help automakers with distance measurement, bringing an additional ranging solution for car access and autonomous systems, and will be utilised across a broader spectrum of applications.

Read more...
Clearing the Static: Effectively control static in your workplace
Actum Electronics Circuit & System Protection
Controlling electrostatic discharge in the workplace is crucial to protect sensitive electronic equipment from damage. Implementing an ESD control program involves various measures and tests.

Read more...
Wi-Fi 6 and Bluetooth LE coprocessor module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The ST67W611M1 from STMicroelectronics boasts an all-in-one design which, together with its capabilities, contribute to making it an attractive choice for IoT edge devices requiring a single-chip solution.

Read more...
Wi-Fi 6 plus Bluetooth LE SoC
Altron Arrow Telecoms, Datacoms, Wireless, IoT
Silicon Labs’ SiWx917M SoC is the company’s lowest power Wi-Fi 6 SoC, ideal for ultra-low power IoT wireless devices using Wi-Fi, Bluetooth, Matter, and IP networking for secure cloud connectivity.

Read more...
Simple battery charger ICs for any chemistry
Altron Arrow Editor's Choice Power Electronics / Power Management
The LTC4162 is a highly integrated, high voltage multi-chemistry synchronous monolithic step-down battery charger and PowerPath manager with onboard telemetry functions and optional maximum power point tracking.

Read more...
Microchip enhances TrustMANAGER platform
Altron Arrow DSP, Micros & Memory
Firmware over-the-air updates and remote cryptographic key management provide scalable solutions for addressing IoT security challenges.

Read more...
Adaptive optics’ power solution
Altron Arrow Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved