SD and SD-C Series SPA® TVS Diodes - Lightning Surge Protection

The SD and SD-C Series 450 W discrete unidirectional and bidirectional TVS diodes from Littelfuse are designed to protect against destructive electrostatic discharges (ESD) and lightning-induced surge currents. These fast-acting TVS diodes are ideal for replacing multilayer varistors (MLVs) in low-speed and DC applications because they can safely absorb repetitive ESD strikes at ±30 kV without performance degradation and safely dissipate up to 30 A of surge current. Their low dynamic resistance provides up to a 50% reduction in clamping voltage compared to competing technologies.

TVS Diodes Array

SPA® Family of TVS Diode Arrays

Features

• ESD: IEC61000-4-2, ±30 kV contact discharge
• Lightning: IEC61000-4-5, 30 A (T_P = 8/20 μs)
• Low dynamic resistance
• No inherent wear-out factor
• SOD-323 package fits inside existing 0805 passives PCB footprints
• AEC-Q101 qualified

Benefits

• Robust surge and enhanced ESD protection permits worry-free product implementations in world’s most challenging environments
• Low dynamic resistance equals fast acting, low clamping protection; provides up to a 50% reduction in clamping voltage compared to competing technologies, making them ideal for protecting modern electronics
• Robust monolithic construction, outlasts equipment that it protects; capable of handling multiple ESD or surge transients without performance degradation
• Industry standard footprint, SOD-323 backward compatible with JEDEC 0805
• Qualified for use in automotive electronics, ensuring maximum reliability