SMAJ18A

SMAJ SERIES HD AK 60 SMAG Plastic-Encapsulate Diodes Transient Voltage Suppressor Diodes Features ●PPP 400W 5.0V- 440V ●VRWM ●Glass passivated chip Applications ●Clamping Voltage SMAG Marking ● SMAJ XXCA/XXA/XX XX : From 5.0 To 440 Bi-directional Uni-direction Symbol Unit Conditions Max Peak power dissipation PPPM W with a 10/1000us waveform 400 Peak pulse current (1) IPPM A with a 10/1000us waveform See Next Table Power dissipation PD W On infinite heat sink at TL=75℃ 1.0 Peak forward surge current(2) IFSM A 8.3 ms single half sine-wave unidirectional only 40 TJ,TSTG ℃ Item Operating junction and storage temperature range -55 to +150 Electrical Characteristics（Ta=25℃ Unless otherwise specified） Item Symbol Unit Conditions Max Maximum instantaneous forward Voltage (3) VF V at 25A for unidirectional only 3.5/5.0 RθJL ℃/W junction to lead 30 RθJA ℃/W junction to ambient， LLead = 10 mm 120 Thermal resistance Notes: (1) Non-repetitive current pulse, per Fig. 3 and derated above TA= 25℃per Fig.2. (2) Mounted on 0.2 x 0.2" (5.0 x 5.0 mm) copper pads to each terminal (3) VF