1 publication order number: sa5.0a/d sa5.0a series 500 watt peak power littelfuse zener transient voltage suppressors unidirectional the sa5.0a series is designed to protect voltage sensitive components from high voltage, high energy transients. they have excellent clamping capability, high surge capability, low zener impedance and fast response time. the sa5.0a series is supplied in the littelfuse exclu sive, cost-effective, highly reliable axial leaded package and is ideally-suited for use in communication systems, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications. features ? working peak reverse voltage range ? 5.0 to 170 v ? peak power ? 500 watts @ 1.0 ms ? esd rating of class 3 (>16 kv) per human body model ? maximum clamp voltage @ peak pulse current ? low leakage < 1 a above 8.5 v ? ul 497b for isolated loop circuit protection ? maximum temperature coefficient specified ? response time is typically < 1.0 ns ? pb? free packages are available mechanical characteristics: case: void-free, transfer-molded, thermosetting plastic finish: all external surfaces are corrosion resistant and leads are readily solderable maximum lead temperature for soldering: 260 c, 1/16 in. from the case for 10 seconds polarity: cathode indicated by polarity band mounting position: any marking diagram axial lead case 59aa plastic cathode anode a saxxxa yyww device package shipping ordering information saxxxag axial lead (pb?free) 1000 units / box saxxxarlg axial lead (pb?free) 5000 / tape & reel saxxxalfg** axial lead (pb?free) 2000 units / box **lead formed device. a = assembly location saxxxa = device number (refer to table on page 3) yy = year ww = work week =pb ? free package (note: microdot may be in either location) littelfuse.com s pecifications subject to change without notice. ? 2016 littelfuse, inc. s eptember 19, 2016 ? rev. 13
sa5.0a series maximum ratings rating symbol value unit peak power dissipation (note 1) @ t l 25 c p pk 500 w steady state power dissipation @ t l 25 c, lead length = 3/8 in derated above t l = 50 c p d 3.0 30 w mw/ c thermal resistance, junction ? to? lead r jl 33.3 c/w forward surge current (note 2) @ t a = 25 c i fsm 70 a operating and storage temperature r ange t j , t stg ? 55 to +150 c stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. 1. nonrepetitive current pulse per figure 4 and derated above t a = 25 c per figure 5. 2. 1/2 sine wave (or equivalent square wave), pw = 8.3 ms, duty cycle = 4 pulses per minute. electrical characteristics (t a = 25 c unless otherwise noted, v f = 3.5 v max. @ i f (note 6) = 35 a) symbol parameter i pp maximum reverse peak pulse current v c clamping voltage @ i pp v rwm working peak reverse voltage i r maximum reverse leakage current @ v rwm v br breakdown voltage @ i t i t test current v br maximum temperature variation of v br i f forward current v f forward voltage @ i f uni?directional tvs i pp i f v i i r i t v rwm v c v br v f 2 publication order number: sa5.0a/d s pecifications subject to change without notice. ? 2016 littelfuse, inc. s eptember 19, 2016 ? rev. 13
sa5.0a series electrical characteristics (t a = 25 c unless otherwise noted, v f = 3.5 v max. @ i f (note 6) = 35 a) device* device marking v rwm (note 3) i r @ v rwm breakdown voltage v c @ i pp (note 5) v br v br (note 4) (volts) @ i t v c i pp volts a min nom max ma volts a mv/ c sa5.0a, g sa5.0a 5 600 6.4 6.7 7 10 9.2 54.3 5 sa6.0ag sa6.0a 6 600 6.67 7.02 7.37 10 10.3 48.5 5 sa7.0arlg sa7.0a 7 150 7.78 8.19 8.6 10 12 41.7 6 sa10ag sa10a 10 1 11.1 11.7 12.3 1 17 29.4 10 sa12ag sa12a 12 1 13.3 14 14.7 1 19.9 25.1 12 sa13ag sa13a 13 1 14.4 15.15 15.9 1 21.5 23.2 13 sa15ag sa15a 15 1 16.7 17.6 18.5 1 24.4 20.6 16 sa16ag sa16a 16 1 17.8 18.75 19.7 1 26 19.2 17 sa17arlg sa17a 17 1 18.9 19.9 20.9 1 27.6 18.1 19 sa18arlg sa18a 18 1 20 21.05 22.1 1 29.2 17.2 20 sa20arlg sa20a 20 1 22.2 23.35 24.5 1 32.4 15.4 23 sa24ag sa24a 24 1 26.7 28.1 29.5 1 38.9 12.8 28 sa26arlg sa26a 26 1 28.9 30.4 31.9 1 42.1 11.9 30 sa28arlg sa28a 28 1 31.1 32.75 34.4 1 45.4 11 31 sa30arlg sa30a 30 1 33.3 35.05 36.8 1 48.4 10.3 36 sa33arlg sa33a 33 1 36.7 38.65 40.6 1 53.3 9.4 39 sa36ag sa36a 36 1 40 42.1 44.2 1 58.1 8.6 41 sa51ag sa51a 51 1 56.7 59.7 62.7 1 82.4 6.1 61 sa64alfg sa64a 64 1 71.1 74.85 78.6 1 103 4.9 76 sa100ag sa100a 100 1 111 117 123 1 162 3.1 123 sa170arlg sa170a 170 1 189 199 209 1 275 1.8 208 3. the transients suppressor is normally selected according to the maximum working peak reverse voltage (v rwm ), which should be equal to or greater than the dc or continuous peak operating voltage level. 4. v br measured at pulse test current i t at an ambient temperature of 25 c. 5. surge current waveform per figure 4 and derate per figures 1 and 2. 6. 1/2 sine wave (or equivalent square wave), pw = 8.3 ms, duty cycle = 4 pulses per minute *the g suffix indicates pb ? free package or pb ? free packages available. 100 10 1 0.1 0.1 s1 s10 s 100 s 1ms 10 ms p p , peak power (kw) t p , pulse width figure 1. pulse rating curve nonrepetitive pulse waveform shown in figure 4 100 80 60 40 20 0 0 25 50 75 100 125 150 175 200 peak pulse derating in % of peak power or current @ t a = 25 c t a , ambient temperature ( c) figure 2. pulse derating curve k 3 publication order number: sa5.0a/d s pecifications subject to change without notice. ? 2016 littelfuse, inc. s eptember 19, 2016 ? rev. 13
sa5.0a series 10,000 1000 100 10 0.1 1 10 100 1000 c, capacitance (pf) v br , breakdown voltage (volts) measured @ zero bias figure 3. capacitance versus breakdown voltage 100 50 0 01 234 t, time (ms) value (%) pulse width (t p ) is defined as that point where the peak current decays to 50% of i pp . peak value ? i pp half value ? i pp 2 figure 4. pulse waveform 5 4 3 2 1 0 0 25 50 75 100 125 150 175 200 p d , steady state power dissipation (watts) t l , lead temperature ( c) 3/8 3/8 figure 5. steady state power derating t r 10 s measured @ (v rwm ) t p ul recognition* the entire series including the bidirectional ca suffix has underwriters laboratory recognition for the classification of protectors (qvgq2) under the ul standard for safety 497b and file . many competitors only have one or two devices recognized or have recognition in a non-protective category. some competitors have no recognition at all. with the ul497b recognition, our parts successfully passed several tests including strike voltage breakdown test, endurance conditioning, t emperature test, dielectric voltage-withstand test, discharge test and several more. whereas, some competitors have only passed a flammability test for the package material, we have been recognized for much more to be included in their protector category. *applies to sa5.0a ? sa170a. 4 publication order number: sa5.0a/d s pecifications subject to change without notice. ? 2016 littelfuse, inc. s eptember 19, 2016 ? rev. 13 #e128662
sa5.0a series package dimensions axial lead case 59aa ? 01 issue a k a d k b dim min max min max millimeters inches a 5.80 7.60 0.228 0.299 b 2.60 3.60 0.102 0.142 d 0.71 0.86 0.028 0.034 k 25.44 ??? 1.000 ??? notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. all rules and notes associated with jedec do ? 41 outline shall apply. 4. polarity denoted by cathode band. 5. lead diameter not controlled within f dimension. 6. replaces case 59 ?09. polarity indicator optional as needed (see styles) littelfuse.com 5 publication order number: sa5.0a/d s pecifications subject to change without notice. ? 2016 littelfuse, inc. s eptember 19, 2016 ? rev. 13 litt elfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-s aving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operatio n of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable littelfuse product documentation.? warranties granted by littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicabl e littelfuse documentation.? littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by littelfuse as set forth in applicable littelfuse documentation.? the sale and use of littelfuse p roducts is subject to littelfuse terms and conditions of sale, unless otherwise agreed by littelfuse.
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