page . 1 may 14.2010-rev.01 smh5.0a / smh14a features ? for surface mounted applications in order to optimize board space. ? low profile package ? built-in strain relief ? low inductance ? plastic package has underwriters laboratory flammability classification 94v-o ? in compliance with eu rohs 2002/95/ec directives mechanical data ? case: sod-123he ? terminals: solder plated,solderable per mil-std-750, method 2026 ? polarity: color band denotes positive end (cathode) ? apporx.weight: 0.0006 ounce, 0.0172 gram maximum ratings and electrical characteristics ratings at 25c ambient temperature unless otherwise specified. notes: 1. non-repetitive current pulse, per fig.3 and derated above t a = 25 o c per fig. 2. 2. mounted on 5.0mm 2 copper pads to each terminal. 3. 8.3ms single half sine-wave, or equivalent square wave, duty cycle = 4 pulses per minutes maximum. 4. peak pulse power waveform is 10/1000 s. unit:inch(mm) sod-123he 0.046(1.15) 0.033(0.85) 0.114(2.90) 0.106(2.70) 0.075(1.90) 0.067(1.70) 0.040(1.00) 0.031(0.80) 0.012(0.30) 0.007(0.20) 0.154(3.90) 0.137(3.50) 0.091(2.30) 0.074(1.90) 0.048(1.20) 0.031(0.80) rating symbol value units peak pulse power dissipation on t a = 25 o c (notes 1,2,4, fig.1) p ppm 400 watts peak forward surge current per fig.5 (note 3) i fsm 40 amps peak pulse current on 10/1000 s waveform(note 1)fig.2 i ppm see table 1 amps typical thermal resistance junction to air (note 2) r ja 107 o c / w operating junction and storage temperature range t j ,t stg -55 to +150 o c surface mount transient voltage suppressor power 400 watts stand-off voltage 5.0 / 14 volts 1 2 cathode anode part number reverse stand-off voltage breakdown voltage te s t c u r r e n t reverse leakage max. clamp voltage peak pulse current marking code v rwm v br @ i t i t i r @ v rwm v c @ i pp i pp min. max. uni uni v v v ma a v a uni 400w transient voltage suppressor smh5.0a 5 6.4 7.25 10 800 9.2 43.5 he smh14a 14 15.6 17.9 1 1 23.2 17.2 ik
page . 2 may 14.2010-rev.01 smh5.0a / smh14a fig.1 v -cr characteristics r fig.4 pulse waveform t,time,ms i ,peak pulse current,% ppm 0 1.0 2.0 3.0 4.0 0 50 100 150 10/1000 u se c wa v e f o rm as defined b ye r.e.a. ha lf va lue-ipp 2 e-kt td t=25c pulse width (td) is defined as the point where the peak current decayst to 50% of ipp a o tf = 10usec peak value ippm 01020304050 26 24 22 20 18 16 14 12 10 8 6 i , peak current(a) pp clamping voltage(v) capacitance between terminals ct, pf reverse voltage v (v) r 0 5 10 15 1 100 1000 f=1mhz fig 2. clamping voltage vs peak pulse current (10x1000 waveform) fig.3 typical reverse characteristics reverse voltage, volts smh5.0a 1000 100 10 1 0.1 0.01 reverse current, a 0 1 2345 6789 fig.5 typical reverse characteristics reverse voltage, volts smh14a 100 10 1 0.1 0.01 0.001 reverse current, a 0 2 4 6 8 10 121416 18 10000 60 14a 5.0a 150 c o 100 c 50 c 25 c o o o 150 c o 100 c o 50 c o 25 c o 14a 5.0a
page . 3 may 14.2010-rev.01 legal statement copyright panjit international, inc 2010 the information presented in this document is believed to be accurate and reliable. the specifications and information herein are subject to change without notice. pan jit makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose. pan jit products are not authorized for use in life support devices or systems. pan jit does not convey any license under its patent rights or rights of others. mounting pad layout order information ? packing information t/r - 10k per 13" plastic reel t/r - 3k per 7" plastic reel unit:inch(mm) 0.091 (2.3) 0.022 (0.55) 0.049 (1.25) 0.055 (1.4) smh5.0a / smh14a
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