Features

AEM, Inc. is the sole U.S. manufacturer of solid body current limiting fuses produced utilizing thick film technology with subsequent screening and qualification for spacecraft/ satellite applications. AEM, Inc.’s Hi-Rel fuses have been selected by most major space programs and have been in orbit for decades with zero failures.

• Consistent clearing times achieved at overload currents regardless of vacuum conditions
• Solid body construction without outgassing and not subjected to the de-rating factors of MIL-STD-975
• Solid body construction capable of withstanding greater vibration and shock exposure without damage
• Positive temperature coefficient of fuse element causing resistance to increase (prior to opening) thereby preventing absolute short to the power source
• Internal construction ensuring that arc, plasma and vapor are contained within the fuse package during overload current conditions
• Groups A/B data supplied with each shipment and Group C inspection optional

Applications

• Used in military and commercial satellites and spacecraft including manned space vehicles
• Protection of power supplies, batteries and solar arrays
• Isolation of redundant and branch circuits
• Short circuit protection from fired squib and jettison circuitry