View dam3ma-series datasheet:

SURGE SUPPRESSOR DIODE DAM3MA FEATURES OUTLINE DRAWING • High transient reverse power capability Unit in mm(inch) Direction of polarity suitable for protecting automobile electronic components etc. Type mark • High heat-resistant due to glass passivation. Cathode band Lot mark 0.2MAX (0.008) 2.5 7.0 (0.1) (0.28) 7.6 (0.3) 1.4 1.4 (0.06) (0.06) Weight: 0.16 (g) ABSOLUTE MAXIMUM RATINGS Ratings Items Symbols Units Non-Repetitive Peak Reverse One- PRSM W 1800(Rectangular pulse t=0.1ms Tj=25° C start) Cycle Dissipation Operating Junction Temperature Tj ° C -40 ~ +150 Storage Temperature Tstg ° C -40 ~ +150 DC Reverse Voltage VDC V Refer to characteristics column CHARACTERISTICS(TL=25°C) Characteristics DC Maximum Reverse Zener Voltage Vz (V) Revers