The 1KSMBJ range of surface mount protectors utilizes the proven glass passivated technology used in many Littelfuse product portfolios. Rated at 1000 watts (10 x 1000 s double exponential waveform), the 1KSMBJ bridges the gap left by traditional types rated at 600 watts and 1500 watts, suiting many applications where both power handling and size are paramount. The extremely fast turn-on time (less than one pico second), coupled with the low clamping factor and low on-state impedance, make this range ideal for the protection of today's circuits. Our specially selected range of voltages has been chosen to fulfill optimum protection for use in automotive and telecom applications.