silicon avalanche diodes 291 www.littelfuse.com 500 watt axial leaded transient voltage suppressors maximum ra tings and characteristics @25?c ambient temperature (unless otherwise noted) unit w atts amps watts amps notes: 1. non-repetitive current pulse, per fig.3 and derated above t a = 25?c per fig.2 2. mounted on copper pad area of 1.6x1.6"(40x40mm) per fig.5. 3. 8.3 ms single half sine-wave, or equivalent square wave, duty cycle= 4 pulses per minutes maximum. the sa series is designed specifically to protect sensitive electronics equipment from voltage transients induced by lightning and other transient voltage events. these devices are ideal for the protection of i/o interfaces, vcc bus and otherv ulnerable circuits used in computer and consumer electronic applications. features ? rohs compliant ? 5.0 to 180 v olts ? uni-directional and bi-directional ? glass passivated chip junction ? 500w peak pulse power capability on 10/1000? waveform ? excellent clamping capability ? repetition rate (duty cycle): 0.01% ? low incr emental surge resistance ? fast r esponse time: typically less than 1.0ps from 0 volts to bv for unidirectional and 5.0ns for bidirectional types ? typical ir less than 1? above 10v ? high temperatur e soldering guaranteed: 265?c/10 seconds/.375",(9.5mm) lead length, 5lbs.,(2.3kg) tension agency approvals: recognized under the components program of underwriters laboratories. agency file number: e128662 symbol p ppm i ppm p m (av) i fsm t j, t stg value min 500 see t able 1 3 70 -55 to +175 rating peak pulse power dissipation on 10/1000 s wavefor m(note 1, fig. 1) peak pulse current of on 10/1000? wavefor m (note 1, fig. 3) steady state power dissipation at t l =75?c, lead lengths .375", (9.5mm)(note 2) peak forward surge current, 8.3ms single half sine-wave superimposed on rated load, (jedec method) (note 3) operating junction and storage temperature range mechanical specifications: w eight: 0.015 ounce, 0.4 gram case: jedec do-15 molded plastic over passivated junction mounting position: any polarity: color band denotes cathode except bidir ectional terminal: plated axial leads, solderable per mil-std-750, method 2026 ordering information sa series rohs sa c a voltage bi-directional 5% voltage tolerance packing option b = bulk (1000 pcs) t = tape and reeled (4000 pcs) ?
silicon avalanche diodes 292 www .littelfuse .com 6 s i l i c o n d i o d e a r r a y s b reakdown v oltage v br ( volts) @ i t m aximum r everse leakage i r @ v r (?) maximum c lamping v oltage v c @ i pp ( volts) m aximum peak pulse current i pp ( a) electrical specification @ tamb 25 s a5.0a sa5.0ca 5.0 6.40 7.00 10 9.2 55.4 600 sa6.0a sa6.0ca 6.0 6.67 7.37 10 10.3 49.5 600 s a6.5a sa6.5ca 6.5 7.22 7.98 10 11.2 45.5 400 s a7.0a sa7.0ca 7.0 7.78 8.60 10 12.0 42.5 150 sa7.5a sa7.5ca 7.5 8.33 9.21 1 12.9 39.5 50 s a8.0a sa8.0ca 8.0 8.89 9.83 1 13.6 37.5 25 sa8.5a sa8.5ca 8.5 9.44 10.40 1 14.4 35.4 10 s a9.0a s a9.0ca 9.0 10.00 11.10 1 15.4 33.1 5 sa10a sa10ca 10.0 11.10 12.30 1 17.0 30.0 3 sa11a sa11ca 11.0 12.20 13.50 1 18.2 28.0 3 s a12a sa12ca 1 2.0 13.30 14.70 1 19.9 25.6 3 s a13a sa13ca 13.0 14.40 15.90 1 21.5 23.7 3 sa14a sa14ca 14.0 15.60 17.20 1 23.2 22.0 3 sa15a sa15ca 15.0 16.70 18.50 1 24.4 20.9 3 sa16a sa16ca 16.0 17.80 19.70 1 26.0 19.6 3 sa17a sa17ca 17.0 18.90 20.90 1 27.6 18.5 3 sa18a sa18ca 18.0 20.00 22.10 1 29.2 17.5 3 sa20a sa20ca 20.0 22.20 24.50 1 32.4 15.7 3 sa22a sa22ca 22.0 24.40 26.90 1 35.5 14.4 3 sa24a sa24ca 24.0 26.70 29.50 1 38.9 13.1 3 sa26a sa26ca 26.0 28.90 31.90 1 42.1 12.1 3 sa28a sa28ca 28.0 31.10 34.40 1 45.4 11.2 3 sa30a sa30ca 30.0 33.30 36.80 1 48.4 10.5 3 sa33a sa33ca 33.0 36.70 40.60 1 53.3 9.6 3 sa36a sa36ca 36.0 40.00 44.20 1 58.1 8.8 3 sa40a sa40ca 40.0 44.40 49.10 1 64.5 7.9 3 sa43a sa43ca 43.0 47.80 52.80 1 69.4 7.3 3 sa45a sa45ca 45.0 50.00 55.30 1 72.7 7.0 3 sa48a sa48ca 48.0 53.30 58.90 1 77.4 6.6 3 sa51a sa51ca 51.0 56.70 62.70 1 82.4 6.2 3 sa54a sa54ca 54.0 60.00 66.30 1 87.1 5.9 3 sa58a sa58ca 58.0 64.40 71.20 1 93.6 5.4 3 sa60a sa60ca 60.0 66.70 73.70 1 96.8 5.3 3 sa64a sa64ca 64.0 71.10 78.60 1 103.0 5.0 3 sa70a sa70ca 70.0 77.80 86.00 1 113.0 4.5 3 sa75a sa75ca 75.0 83.30 92.10 1 121.0 4.2 3 sa78a sa78ca 78.0 86.70 95.80 1 126.0 4.0 3 sa85a sa85ca 85.0 94.40 104.00 1 137.0 3.7 3 sa90a sa90ca 90.0 100.00 111.00 1 146.0 3.5 3 sa100a sa100ca 100.0 111.00 123.00 1 162.0 3.1 3 sa110a sa110ca 110.0 122.00 135.00 1 177.0 2.9 3 sa120a sa120ca 120.0 133.00 147.00 1 193.0 2.6 3 sa130a sa130ca 130.0 144.00 159.00 1 209.0 2.4 3 sa150a sa150ca 150.0 167.00 185.00 1 243.0 2.1 3 sa160a sa160ca 160.0 178.00 197.00 1 259.0 2.0 3 sa170a sa170ca 170.0 189.00 209.00 1 275.0 1.9 3 sa180a sa180ca 180.0 200.00 233.00 1 289.0 1.7 3 r everse stand off voltage v r (volts) for bidirectional type having vrwm of 10 volts and less, the ir limit is double. for parts without a , the vbr is + 10% t est c urrent i t ( ma) min max part numbers u ni-polar bi-polar sa series 500 watt axial leaded transient voltage suppressors rohs ?
silicon avalanche diodes 293 www.littelfuse.com 5 00 watt axial leaded transient voltage suppressors sa series ? rohs fig. 1 peak pulse power rating curve p p p m - p e a k p u l s e p o w e r ( k w ) 0.1s 1.0s 10s 100s 1.0ms 10ms 0.1 1 10 30 non-repetitive pulse waveform shown in fig. 3 t a =25?c t d - pulse width (sec.) fig. 2 pulse derating curve t a - ambient temperature (?c) p e a k p u l s e p o w e r ( p p p ) o r c u r r e n t ( i p p ) d e r a t i n g i n p e r c e n t a g e , % 0 0 25 25 50 50 75 75 100 100 125 150 175 200 fig. 3 pulse waveform i p p m - p e a k p u l s e c u r r e n t , % i r s m 0 0 50 100 150 1.0 2.0 3.0 4.0 t r =10?ec peak value i ppm half value i ppm 2 t j =25?c pulse width(td) is defined as the point where the peak c urrent decays to 50% of i p pm 10/1000?ec. waveform as defined by r.e.a t d t-time (ms) fig. 6- maximum non-repetitive i p s m - p e a k f o r w a r d s u r g e c u r r e n t ( a ) 1 10 100 200 10 100 number of cycles at 60hz forward surge current uni-directional only 8.3 single half sine-wave (jedec method) undirectional only fig. 4- typical junction capacitance c j - j u n c t i o n c a p a c i t a n c e ( p f ) 6000 1000 100 10 5 100 500 v wm -reverse stand-off voltage (v) v r =rated stand-off voltage t j =25?c f=1mhz v sig =50mvp-p uni-directional bi-directional v r = fig. 5 steady state power derating curve t 1 - lead temperature (?c) s t e a d y s t a t e p o w e r d i s s i p a t i o n ( w ) 0 0 25 1.0 50 2.0 75 3.0 100 4.0 125 150 175 200 l=0.375"(9.5mm) lead lengths 1.6x1.6x.040 (40x40x1mm) copper heat sinks p p p t d t d t d half sine exponential square
silicon avalanche diodes 294 www .littelfuse .com 6 s i l i c o n d i o d e a r r a y s 500 watt axial leaded transient voltage suppressors outline dimensions sa series 0.140 (3.6) 0.104 (2.6) dia. 1.0 (25.4) min. 0.300 (7.6) 0.230 (5.8) 1.0 (25.4) min. 0.034 (0.86) 0.028 (0.71) dia. do-204ac (do-15) dimensions in inches and (millimeters) ? rohs
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