3-48 surface mount microwave schottky mixer diodes technical data features ? optimized for use at 10-14 ghz ? low capacitance ? low conversion loss ? low rd ? low cost surface mount plastic package hsms-8101 single hsms-8202 pair hsms-8205 pair hsms-8207 quad plastic sot-23 package description/applications these low cost microwave schottky diodes are specifically designed for use at x/ku-bands and are ideal for dbs and vsat downconverter applications. they are available in sot-23 and sot-143 standard package configurations. package lead code identification (top view) absolute maximum ratings [1] , t a = +25 c symbol parameter unit min. max. p t total device dissipation [2] mw 75 p iv peak inverse voltage v 4 t j junction temperature c +150 t stg , t op storage and operating c -65 +150 temperature notes: 1. operation in excess of any one of these conditions may result in permanent damage to the device. 2. measured in an infinite heat sink at t case = 25 c. derate linearly to zero at 150 c per diode. unconnected pair #5 series #2 single #1 12 3 12 34 ring quad #7 12 34 12 3 5966-0929e plastic sot-143 package
3-49 dc electrical specifications, t a = 25 c symbol parameters and test conditions units min. max. min. max. min. max. min. max. v br breakdown voltage i r = 10 m av44 44 c t total capacitance v r = 0 v, f = 1 mhz pf 0.26 0.26 0.26 0.26 d c t capacitance difference v r = 0 v, f = 1 mhz pf 0.04 0.04 0.04 r d dynamic resistance i f = 5 ma w 14 14 14 14 d r d dynamic resistance difference i f = 5 ma w 2 2 2 v f forward voltage i f = 1 ma mv 250 350 250 350 250 350 250 350 d v f forward voltage difference i f = 1 ma mv 20 20 20 lead code 1 2 5 7 package marking code in white r1 2r r5 r7 rf electrical parameters, t a = 25 c symbol parameter units typical l c conversion loss at 12 ghz db 6.3 z if if impedance w 150 swr swr at 12 ghz 1.2 note: dc load resistance = 0 w ; lo power = 1 mw. spice parameters i s = 4.6 e-8 e g = 0.69 tt = 0 r s = 6 c jo = 0.18 e-12 n = 1.09 p b (v j ) = 0.5 b v = 7.3 m = 0.5 i bv = 10e-5 fc = 0.5 linear equivalent circuit 0.17 pf r j 0.08 pf 1.0 nh 1.3 nh 6 self bias 1 ma 2.5 ma r j 263 142 hsms-8101 hsms-8202 hsms-8205 hsms-8207
3-50 typical performance, t c = 25 c forward voltage (v) figure 1. typical forward current vs. forward voltage at three temperatures. 100 10 1 0.1 0.01 forward current (ma) 0 0.2 0.4 0.6 0.8 v - forward voltage (v) figure 2. typical vf match, hsms- 820x pairs and quads. 30 10 i f - forward current (ma) ? v f - forward voltage difference (mv ) 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 1 0.3 30 10 1 0.3 i f (left scale) ? v f (right scale) local oscillator power (dbm) figure 3. typical conversion loss vs. local oscillator power. 9 8 7 6 conversion loss (db) ? 5 ? ? 1 3 5 7 9 11 13 t a = +125 c t a = +25 c t a = ?5 c profile option descriptions #l30 = bulk #l31 = 3k pc. tape and reel, device orientation figures 4, 5 tape and reeling conforms to electronic industries rs-481, taping of surface mounted components for automated placement. ordering information specify part number followed by option. for example: h sms - 8101 #x xx bulk or tape and reel option profile: low = l part number surface mount schottky hewlett-packard device orientation figure 5. option l31 for sot-143 packages. figure 4. option l31 for sot-23 packages. end view 8 mm 4 mm top view end view 8 mm 4 mm top view user feed direction cover tape carrier tape reel
3-51 outline 143 (sot-143) package dimensions outline 23 (sot-23) package characteristics lead material ............................................................................ alloy 42 lead finish ................................................................... tin-lead 85-15% maximum soldering temperature .......................... 260 c for 5 seconds minimum lead strength .................................................... 2 pounds pull typical package inductance ........................................................... 2 nh typical package capacitance .......................... 0.08 pf (opposite leads) 3 1 2 x x package marking code side view top view end view dimensions are in millimeters (inches) 1.02 (0.040) 0.89 (0.035) 0.50 (0.024) 0.45 (0.018) 1.40 (0.055) 1.20 (0.047) 2.65 (0.104) 2.10 (0.083) 3.06 (0.120) 2.80 (0.110) 2.04 (0.080) 1.78 (0.070) 1.02 (0.041) 0.85 (0.033) 0.152 (0.006) 0.066 (0.003) 0.10 (0.004) 0.013 (0.0005) 0.69 (0.027) 0.45 (0.018) 0.54 (0.021) 0.37 (0.015) dimensions are in millimeters (inches) 0.10 (0.004) 0.013 (0.0005) 0.92 (0.036) 0.78 (0.031) e e b c xx package marking code 1.40 (0.055) 1.20 (0.047) 2.65 (0.104) 2.10 (0.083) 0.54 (0.021) 0.37 (0.015) 0.60 (0.024) 0.45 (0.018) 2.04 (0.080) 1.78 (0.070) 3.06 (0.120) 2.80 (0.110) 0.15 (0.006) 0.09 (0.003) 1.02 (0.041) 0.85 (0.033) 0.69 (0.027) 0.45 (0.018)
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