Initiator Firing Switches

Excelitas’ Solid-State Initiator Firing Switches are miniature advanced thyristors optimized for the precise control and rapid charge transfer needed for the reliable activation of Low Energy Exploding Foil Initiators (LEEFI) including Excelitas’ own Blue Chip®Detonator.

Due to their small size and reliable operation, SolidTRON Initiator Firing Switches are widely used throughout the weapons industry in various MIL-STD-1316 compliant Electronic Safe and Arm Devices (ESAD), MIL-STD-1901A compliant rocket motor Ignition Safety Devices (ISD) as well as other Firing Module (FM) and Capacitor Discharge Unit (CDU)  applications.


Solid-State Initiator Firing Switches

Product List

Part Number

SP205-01/SP205-01T, Fpak

The Solidtron™ SP205-01 is an ultra-fast high-voltage thyristor packaged in an F-Pak custom SMT package. The SP205-01T is identical to the SP205-01 with the exception that its pads have been robotically tinned with 63Sn-37Pb solder prior to final testing.
Part Number

SP245-01, Cpak

The Solidtron™ SP245-01 is an advanced high-voltage current controlled thyristor packaged in an CPak custom SMT package. It has been specifically designed to comply with IPC 2221 Section 6.3 Electrical Clearance at any elevation.
Part Number

SP245-03, JEDEC TO-247 (5L)

The Solidtron<sup>™</sup> SP245-03 is an advanced high-voltage current-controlled thyristor packaged in a JEDEC TO-247 (5L) package.