rev. date: 07-apr- 11 ksd-d6e010-001 www .auk.co.kr 1 of 5 NDB171 transient voltage suppressor diode bi-directional esd protection tvs diode general description the NDB171 device is help protect sensitive electronic equipment against electrostatic discharge (esd). the NDB171 device is safely dissipate esd strikes, exceeding the iec 61000-4-2 international standard, level 4 (8kv contact di scharge and 15kv air discharge). features and benefits ? low capacitance and fast response time ? bidirectional type pin configuration structure ? compact smd package saves board space and facilitates layout in space-critical applications ? full lead(pb)-free device and rohs compliant ? available in ?green? device applications ? esd protection of pc ports, including usb ports, cell phone handsets and accessories, etc. ordering information part number marking code package packaging NDB171 b sod-923 tape & reel marking information pinning information pin description simplified outline graphic symbol 1 cathode 2 anode b = specific device code = year & week code marking = color band denote cathode b sod-923
rev. date: 07-apr- 11 ksd-d6e010-001 www .auk.co.kr 2 of 5 absolute maximum ratings (t amb =25 , unless otherwise specified) characteristic symbol ratings unit esd withstand voltage per iec 61000-4-2 standard v esd(air) 15 kv v esd(contact) 8 peak pulse power ( tp = 8/20us ) p pk 100 w power dissipation 1) p d 100 mw junction temperature t j 150 ? c storage temperature range t stg -55 ~ +150 ? c 1) device mounted on fr-4 board with recommended pad layout. thermal characteristics (t amb =25 , unless otherwise specified) characteristic symbol ratings unit thermal resistance, junction to ambient 1) r th(j-a) 1250 ? c/w 1) device mounted on fr-4 board with recommended pad layout. electrical characteristics (t amb =25 , unless otherwise specified) characteristic symbol test condition min. typ. max. unit breakdown voltage v br i r =1ma 5.78 - 7.82 v reverse current i r v r =3.5v - - 0.5 ua total capacitance c t v r =0v, f=1mhz - 25 - pf NDB171
rev. date: 07-apr- 11 ksd-d6e010-001 www .auk.co.kr 3 of 5 rating and characteristic curves NDB171 fig. 1) typical zener characteristics fig. 2) power dissipation vs. ambient temperature fig. 3) typical capacitance characteristics fig. 4) power dissipation vs. ambient temperature
rev. date: 07-apr- 11 ksd-d6e010-001 www .auk.co.kr 4 of 5 package outline dimensions (unit : mm) recommend pcb solder land (unit : mm) NDB171
rev. date: 07-apr- 11 ksd-d6e010-001 www .auk.co.kr 5 of 5 the auk corp. products are intended for the use as components in general electronic equipment (office and communication e quipment, measuring equipment, home appliance, etc.). please make sure that you consult with us before you use these auk corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safet y device, etc.). auk corp. cannot accept liability to any damage which may occur in case these auk corp. products were used in the mentioned equi pments without prior consultation with auk corp.. specifications mentioned in this publicati on are subject to change without notice. NDB171
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