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:

NXP has expanded its MCX A Series
Altron Arrow AI & ML
NXP has significantly expanded its MCX A Series of Arm Cortex-M33 microcontrollers, doubling the portfolio with six new families aimed at industrial and IoT edge applications.

Read more...
Surviving the extremes: Understanding shock and vibration in MEMS sensors
Altron Arrow Editor's Choice Test & Measurement
By considering factors such as mechanical headroom, damping, and system-level robustness, designers can ensure that the chosen sensor not only survives, but performs reliably over time.

Read more...
EMI shielding materials application guide
Circuit & System Protection
TE Connectivity’s shielding solutions include electrically conductive elastomers, gaskets, knitted wire mesh, oriented wire, EMI shielding ventilation panels, shielded window, cable shielding and shielding components.

Read more...
Exploring Bluetooth Channel Sounding
Altron Arrow Telecoms, Datacoms, Wireless, IoT
NXP has enabled BCS on the MCX W72 multi-protocol wireless MCU, which supports Bluetooth Low Energy 6.0, Thread, Zigbee, and Matter.

Read more...
Dual-band Wi-Fi 6 companion module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The SimpleLink Wi-Fi CC33xx family of devices from Texas Instruments are dual-band Wi-Fi 6 companion modules enabling engineers to connect more applications with confidence.

Read more...
Power module enhances AI data centre power density
Altron Arrow Power Electronics / Power Management
Microchip’s MCPF1525 power module with PMBus delivers 25 A DC-DC power and is stackable up to 200 A.

Read more...
High-performance linear regulator
Altron Arrow Power Electronics / Power Management
The TI TPS7A57-Q1 is an automotive-grade, high-performance low-dropout linear regulator, engineered for precision power delivery in noise-sensitive systems.

Read more...
Clearing the Static: ESD containers and packaging
Actum Circuit & System Protection
         Vacuum forming ESD Electronic components can be damaged by electrostatic discharges. To protect against such damage, electronic assembly parts are often transported or stored in vacuum formed component ...

Read more...
Quad RF ADC/DAC for wideband transceiver design
Altron Arrow DSP, Micros & Memory
The AD9084 from Analog Devices integrates a quad 16-bit RF digital-to-analogue converter with a maximum sampling rate of 28 GSPS and a quad 12-bit RF analogue-to-digital converter.

Read more...
Collaboration to explore 10BASE-T1S SPE
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The collaboration between Microchip and Hyundai aims to evaluate and promote the adoption of advanced in-vehicle network technologies leveraging each company’s strengths.

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