Vishay Intertechnology, announced the introduction of the SGCM05339, a space-grade, surface-mount common mode choke. The device is designed to provide EMI filtering and noise suppression in space, aerospace, and defense applications. It addresses EMI in GaN and SiC switching applications, where waveform sharp edges produce radiated emissions. Applications also include low-profile, high-current power supplies, DC/DC converters in distributed power systems, and power converters for solar panels.
The SGCM05339 features a compact, robust nanocrystalline core and overmolded ruggedized construction in a self-shielded design. It provides high impedance across extended frequencies and supports heat rating current up to 14.43 A. The operating temperature range is -55 °C to +130 °C continuously.
The component complies with outgassing requirements per ASTM-E595. Screening options include MIL-PRF-27 Grade 5, Product Level T, Temperature Class S; MIL-STD-981 Family-4, Class S; and EEE-INST-002. Electrical specifications include a dielectric withstand voltage of 1000 V RMS and minimum insulation resistance of 10 GΩ at 500 V DC.
The device allows customization in turn count, wire gauge, and other parameters to suit application needs.
Key specifications vary by configuration:
Inductance per winding: 320 µH to 10,400 µH
Common mode impedance (typical): 540 Ω to 3600 Ω
DC resistance per winding (maximum): 0.0029 Ω to 0.1318 Ω
Heat rating current (typical): 2.02 A to 14.43 A (DC current causing approximately 30 °C temperature rise)
Peak impedance frequency: 2.06 MHz to 31.74 MHz (noting likely unit as MHz based on context)
Leakage inductance (maximum): 0.35 µH to 7.75 µH
Samples and production quantities of the SGCM05339 are available immediately, with lead times of 8 to 12 weeks.
Vishay Intertechnology manufactures discrete semiconductors and passive electronic components for markets including automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical. The company is listed on the NYSE under the ticker VSH.
