Surface Mount Zener Diode Features: * * * * Planar Die Construction 350mW Power Dissipation General Purpose, Medium Current Ideally Suited for Automated Assembly Processes Application: 350mW Surface mount zener diode Maximum Rating @ Ta = 25C unless otherwise specified Characteristic Symbol Value Unit Forward voltage @ IF = 10mA VF 0.9 V Power dissipation PD 350 mW Thermal resistance, junction to ambient air RjA 357 C/W Operating and storage temperature range Tj, Tstg -65 to +150 C Note : V alid provided that device terminals are kept at ambient temperature. Tested with pulses, TP 1ms. Electrical Characteristics @ Ta = 25C unless otherwise specified Zener Voltage Range Type Number MMBZ5231B Marking Code KE1 Vz@IZT Maximum Zener Impedance IZT Nom(V) Min(V) Max(V) (mA) 5.1 4.85 5.36 20 ZZT@IZT ZZK@IZK = 0.25mA () 17 1,600 Maximum Reverse Leakage Current IR @VR (A) (V) 5 2 www.element14.com www.farnell.com www.newark.com Page <1> 25/02/13 V1.0 Surface Mount Zener Diode Typical Characteristics @ Ta = 25C unless otherwise specified Package Outline Plastic surface mounted package SOT-23 www.element14.com www.farnell.com www.newark.com Page <2> 25/02/13 V1.0 Surface Mount Zener Diode Soldering Footprint Package Information Device Package Shipping MMBZ5231B-7-F SOT-23 3,000/Tape & Reel Dimensions : Millimetres Part Number Table Description Part Number 350mW Surface Mount Zener Diode MMBZ5231B-7-F Important Notice : This data sheet and its contents (the "Information") belong to the members of the Premier Farnell group of companies (the "Group") or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group's liability for death or personal injury resulting from its negligence. Multicomp is the registered trademark of the Group. (c) Premier Farnell plc 2012. www.element14.com www.farnell.com www.newark.com Page <3> 25/02/13 V1.0