Mil-STD-331 F1: Environmental and Performance Tests for Fuze and Fuze Components - Electrostatic Discharge (ESD)

Effects on fuzes, munitions and explosives from electrostatic discharge events

This standard describes tests used by the Department of Defense (DoD) to determine the safety, reliability and performance characteristics of weapon system fuzes and fuze components at any stage in their life cycle.

MIL-STD-331 personnel borne ESD testing requires two discharge networks, R/C capabilities 500pF/500Ohm and 500pF/5kOhm, along with a 30kV ESD generator. Accessories are also available to isolate the discharge tip from the main unit of the ESD generator (isolatiing the Fuze from the user), shielded environments are also available.

MIL-STD-331 History

MIL-STD-331A - Released October 15, 1976
MIL-STD-331B - Released December 1, 1989
MIL-STD-331C - Released January 5, 2005 (no significant changes to ESD)

Test Parameters for MIL-STD-331

Testing to be performed in positive and negative polarities

Source of Threat	Voltage Across Capacitance	Capacitance	Resistance	Discharge Induction

Personnel	20kV ±5%	500 pF ±5%	5000 Ohms	<5 uH
Personnel	20kV ±5%	500 pF ±5%	500 Ohms	<5 uH
Helicopter	300kV ±5%	1000 pF ±10%	1 max*	<20 uH

*Total distributed discharge circuit resistance measured with and accuracy

MIL-STD-331 Test Solutions

Electro-Tech Systems 930D Electrostatic Discharge Simulator / ESD Generator

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3ctestEDS MAX20 20kV ESD Generator

ESDGuns.comESD Test Table-Bench with Coupling Planes and Grounding Cables

Teseq ESD GunsRent Teseq NSG 438 30kV ESD Simulator Gun

Mil-STD-331 F1: Environmental and Performance Tests for Fuze and Fuze Components - Electrostatic Discharge (ESD)

MIL-STD-331 History

Test Parameters for MIL-STD-331

MIL-STD-331 Test Solutions