New Lightning Protected Drop-in for Popular Holt HI-3593 ARINC 429 IC

Friday, March 8, 2019

Mission Viejo, CA (March 7, 2019) – Holt Integrated Circuits today released a new ARINC 429 protocol IC, HI-35930, which provides a lightning-protected drop-in for existing HI-3593 designs.

Dual line receivers meet the lightning requirements of specification RTCA/DO160G Section 22 Level 3 Pin Injection Test Waveforms without the need for any external components. Aside from the addition of lightning protection, the device is identical to HI-3593, featuring a SPI host interface, integrated line driver and on-board DC/DC converter for single-supply 3.3V operation. 

“This new device enables customers to add lightning protection to existing HI-3593 designs with a minimum of expense or re-qualification,” said Anthony Murray, Director of Marketing Communications at Holt Integrated Circuits. “Software compatibility with the previous device may also be leveraged in new lightning-protected designs.” 

Other device variants include digital-only options for use with external line receivers and line driver. These devices may be utilized for higher rated levels of lightning protection or isolation. For example HI-35933 enables galvanic isolation utilizing external Holt line receivers (HI-8460) and lightning protection on the transmitter using an external Holt lightning-protected line driver, HI-8597.

To request information on Holt’s ARINC 429, CAN, MIL-STD-1553 and other product lines, readers should contact Holt at (949) 859-8800, by e-mail at, or visit the Holt website at


About Holt Integrated Circuits

Located in Mission Viejo, CA, Holt Integrated Circuits is a major supplier of ICs for avionics and military aircraft data bus and display applications.  The company’s products are specified by more than 400 manufacturers worldwide and are employed in flight control, navigation, engine management, communications, safety equipment, and in-flight entertainment systems.

Holt’s range of ICs supporting the ARINC 429 standard is the widest in the industry, and its MIL-STD-1553 transceivers are recognized as the industry’s smallest, having the lowest power consumption.  In addition, Holt MIL-STD-1553 integrated terminals offer the most compact, cost effective solution available, integrating protocol, transceiver and transformers in a single 15x15mm package.  Other data bus products include ARINC 717, CAN (ARINC 825), Ethernet, RS-485/422, discrete-to-digital and analog switches.  Select products are available to DSCC SMD specifications.  Holt also offers product compliant to the European Union "RoHS Directive /95/EC".

Holt Integrated Circuits is AS9100D:2016 and ISO 9001:2015 registered.








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