industry news
Subscribe Now

ProTek Devices Adds Two Steering Diode / TVS Arrays for Circuit Protection in Telecommunications, Computing and Other Equipment

One Part Also Offers EMI/RFI Protection and the Other Is an Addition to a TVS Array Series

TEMPE, Ariz. – Feb. 5, 2018 – ProTek Devices has added two steering diode / transient voltage suppressor 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 steering diode / TVS array provides ultra-low capacitance of 1.6pF (typical) 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 micro seconds waveform). It is compatible with IEC standards 61000-4-2 (ESD): air ±15kV, contact ±8kV; 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. This device, in conjunction with passive components integrated into a TVS / filter network, can be used for EMI / RFI protection. ESD protection is > 25 kilovolts. The PLR4045 also offers unidirectional configuration, a low clamping voltage of 20V (max.) at IPPM = 30A 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 (1pF typical) steering diode / TVS arrays. It offers a 2.8 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 series 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: ±15kV, contact: ±8kV; 61000-4-4 (EFT): 40A – 5/50ns; and 61000-4-5 (surge): 24A, 8/20 micro seconds, level 2(LineGnd) and level 3 (Line-Line). It features 300 watts peak pulse power per line (typical = 8/20 micro seconds). It provides two lines of protection and low leakage current of < 1.0 microampere. Other rated standoff voltages in the series include 3.3 and 5. The leakage current for the 3.3V device is less than 1.0 microampere. Both new parts are RoHS and REACH compliant.

Mechanical, Packaging and Availability Information

Both devices are now available. The PLR4045 is provided in a molded JEDEC MSOP-10 package and has an approximate weight of only 24 milligrams. The PSRV2.8-2LC is offered in a molded DFN-6 package and has an approximate weight of just 9 milligrams. With six leads in the PSRV2.8-2LC, it reduces the internal lead inductance for low overshoot voltage during fast front time transient events, such as ESD. For the PSRV2.8-2LC, pins 1-6, pins 2-5 and pins 3-4 must be connected via PCB traces.

Other key mechanical characteristics for both parts include lead-free pure-tin plating (annealed) and a solder reflow temperature of (pure-tin – Sn, 100) 260 to 270 degrees Celsius. Both also have a flammability rating of UL 94V-0. The PLR4045 is delivered on 12mm tape and reel, per EIA standard 481, in minimum quantities of 1,000. The PSRV-2LC series is provided in 8mm tape and reel, also per EIA standard 481, in minimum quantities of 3,000.

Pricing information and purchasing details can be had by contacting any authorized distributor, representative, or directly with ProTek Devices. The company’s distributor and representative channels are available worldwide in the USA, Europe, Asia, Latin America and more. Full contact information for all worldwide regions can be found at the company website.

About ProTek Devices

In business 25 years, ProTek Devices™ is a privately held semiconductor company. The company offers a product line of overvoltage protection components and overcurrent protection components. These include transient voltage suppressor products (TVS arrays), avalanche breakdown diodes, steering diode TVS arrays, PPTC devices, and electronic SMD chip fuses. These components deliver circuit protection in various electronic systems against lightning; electrostatic discharge (ESD); nuclear electromagnetic pulses (NEMP); inductive switching; and electromagnetic interference / radio frequency interference (EMI / RFI). The company maintains its headquarters in Tempe, Ariz. More information is available at

Leave a Reply

featured blogs
Jan 17, 2019
After two interesting blogs by Yagya Mishra that explained the most popular features of the Run Plan assistant in Virtuoso® ADE Assembler , I am writing this third blog in the series to share... [[ Click on the title to access the full blog on the Cadence Community site...
Jan 16, 2019
112 Gbps Samtec Flyover'„¢ Demo Samtec'€™s Ralph Page walks us through a live demonstration of a Samtec Flyover'„¢ system which enables 112 Gbps PAM4 performance. The Credo CDR generates two ports of 31-bit PRBS data at 112 Gbps PAM4 data rates. The signal travels from...