Guidelines for Lightning Protection of ARINC 825 (CAN) Components

Thursday, February 02, 2012

Mission Viejo, CA (January 25, 2012)    Holt Integrated Circuits, a world leader in data bus IC’s for commercial and military avionics, today published a new application note (AN-302) which provides guidelines for protection against lightning induced transients applied to Holt’s ARINC 825 CAN productsThe circuits recommended in AN-302 were all tested according to RTCA/DO-160G, Section 22, Level 4 Pin Injection Test Waveform Set A (3 & 4), Set B (3 & 5A) and Set Z (3 & 5B).

The recent move from aluminum to newer composite air frames has made lightning susceptibility a major issue in aircraft design and reliability.  In addition, the very low (10pF) bus connection internal capacitance requirements mandated in the ISO 11898-5 CAN specification make protection of ARINC 825 components particularly challenging.  AN-302 provides the user with the necessary guidelines to comply with RTCA/DO-160G, Level 4 waveforms, while maintaining all the requirements of the ISO 11898 CAN specification.  AN-300 and AN-301 are also available to provide lightning protection recommendations for Holt’s ARINC 429 components.  All app notes are available upon request from Holt.

Holt’s latest products complying with DO-160G Level 4 include HI-3110, an ARINC 825 avionics CAN controller with integrated transceiver and HI-3000, a 1Mbps ARINC 825 avionics CAN transceiver.

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


About Holt Integrated Circuits

Located in Mission Viejo, CA, Holt Integrated Circuits is a major supplier of ICs for avionics and military 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 display drivers offer high-voltage operation as well as innovative design features to enhance ease of use and testability.  Holt’s transceivers for MIL-STD-1553 applications are recognized as the industry’s smallest and have the lowest power consumption.  In addition, Holt also offers MIL-STD-1553 protocol ICs, Manchester encoder/decoders and interface transformers, as well as other data bus products such as ARINC 717, CAN and RS-485.  Select products are available to DSCC SMD specifications.  Holt also offers product compliant to the European Union "RoHS Directive 002/95/EC".

Holt Integrated Circuits is ISO 9001:2008 registered and is a STACK certified supplier.