document number: 36010 for technical questions contact: connectors@vishay.com www.vishay.com revision: 05-may-09 16 rack and panel connectors subminiature rectangular sm20 vishay dale electrical specifications current rating: 7.5 a breakdown voltage: at sea level: 2000 v rms at 70 000 feet [21 336 meters]: 500 v rms physical specifications number of contacts: 5, 7, 11, 14, 20, 26, 34, 42, 50, 75 contact spacing: 0.120" [3.05 mm] contact gauge: #20 awg minimum creepage path between contacts: 0.080" [2.03 mm] minimum air space between contacts: 0.050" [1.27 mm] features ? lightweight ? polarized by guides or screwlocks ? screwlocks lock connectors to gether to withstand vibration and accidental disconnect ? overall height kept to a minimum ? floating contacts aid in alignment and in withstanding vibration ? contacts, precision machined and individually gauged, provide high reliability ? insertion and withdrawal forces kept low without increasing contact resistance ? contact plating provides protection against corrosion, assures low contact resistan ce and ease of soldering applications for use wherever space is at a premium and a high quality connector is required in avionics, automation, communications, controls, instrumentation, missiles, computers and guidance systems. material specifications contact pin: brass, gold plated contact socket: phosphor bronze, gold plated (beryllium copper available on request) guides: stainless steel, passivated screwlocks: stainless steel, passivated standard body: glass-filled diallyl phthalate per mil-m-14, model gdi-30f, green sms20 smp20 dimensions in inches [millimeters] sms with fixed standard guides 0.220 [5.59] 0.156 [3.96] typ. see detail b 0.470 [11.94] 0.190 [4.83] typ. 2-56 unc-2a threads typ. smds - detail b dip solder contact option 0.187 [4.75] typ. 0.030 [0.762] typ. smp with fixed standard guides 0.040 [1.02] dia. typ. 0.220 [5.59] 0.120 [3.05] see detail c 0.046 [1.17] dia. solder cup #20 awg typ. 0.141 [3.58] typ. 0.530 [13.46] smdp - detail c dip solder contact option 0.040 0.001 [1.02 0.025] dia. typ. 0.030 [0.762] typ. 0.187 [4.75] typ. 0.141 [3.58] typ. sms with fixed (sl) screwlocks 0.110 [2.79] 2-56 unc-2a thread is standard 0.520 [13.21] 0.220 [5.59] smp with turnable (sk) screwlocks 0.920 [23.37] 0.220 [5.59] 0.120 [3.05] sms with turnable (sk) screwlocks 0.910 [23.11] 0.220 [5.59] 0.046 [1.17] wide x 0.062 [1.57] deep typ. 0.110 [2.79] 2-56 unc-2a thread is standard smp with fixed (sl) screwlocks 0.120 [3.05] 0.220 [5.59] 0.530 [13.46]
www.vishay.com for technical questions contact: connectors@vishay.com document number: 36010 17 revision: 05-may-09 sm20 vishay dale rack and panel connectors subminiature rectangular dimensions in inches [millimeters] terminal variations in inches [millimeters] smp with turnable (sk030) screwlocks 0.120 [3.05] 0.046 [1.17] wide x 0.062 [1.57] deep typ. 0.590 [14.99] 0.220 [5.59] 0.156 [3.96] dia. smp with turnable (sk035) screwlocks view a-a typ. a 0.120 [3.05] 0.610 [15.49] a 0.220 [5.59] 0.093 [2.36] hex typ. 0.156 [3.96] dia. sms with turnable (sk035) screwlocks 2-56 unc-2a thread is standard 0.110 [2.79] 0.220 [5.59] 0.595 [15.11] smp with turnable (sk030) screwlocks 0.120 [3.05] 0.046 [1.17] wide x 0.062 [1.57] deep typ. 0.590 [14.99] 0.220 [5.59] 0.156 [3.96] dia. dip solder pc board mounting patterns male (smp) connector is shown - female is opposite. contact row and matin g hole c to c dimensions also applies to solder cup connectors. 14 contacts 11 contacts 7 contacts 5 contacts 42 contacts 50 contacts 75 contacts 34 contacts 26 contacts 20 contacts 0.125 [3.18] typ. ll 1.250 [31.75] ref. 1.562 [39.67] 0.093 [2.36] dia. typ. 0.324 [8.23] ref. 0.108 [2.74] typ. 0.156 [3.96] typ. 0.054 [1.37] typ. 0.0625 [1.59] typ. 0.110 [2.79] 0.220 [5.59] 1.500 [38.10] ref. 0.093 [2.36] dia. typ. 1.812 [46.02] 0.540 [13.72] ref. 0.108 [2.74] typ. 0.0625 [1.59] typ. 0.156 [3.96] typ. 0.250 [6.35] ref. 0.531 [13.49] 0.108 [2.74] ref. 0.093 [2.36] dia. typ. 0.054 [1.37] typ. 0.140 [3.56] typ. 0.0625 [1.59] typ. 0.093 [2.36] dia. typ. 0.054 [1.37] typ. 0.108 [2.74] ref. 0.375 [9.53] ref. 0.625 [15.88] 0.0625 [1.59] typ. 0.216 [5.49] ref. 0.108 [2.74] typ. 0.0625 [1.59] typ. 0.750 [19.05] 0.500 [12.70] ref. 0.093 [2.36] dia. typ. 0.125 [3.18] typ. 0.750 [19.05] ref. 1.0 [25.40] 0.093 [2.36] dia. typ. 0.108 [2.74] typ. 0.216 [5.49] ref. 0.0625 [1.59] typ. 0.125 [3.18] typ. 1.000 [25.40] ref. 0.216 [5.49] ref. 1.25 [31.75] 0.093 [2.36] dia. typ. 0.0625 [1.59] typ. 0.108 [2.74] typ. 0.125 [3.18] typ. 1.000 [25.40] typ. 0.054 [1.37] typ. 0.0625 [1.59] typ. 1.312 [33.32] 0.324 [8.23] ref. 0.093 [2.36] dia. typ. 0.108 [2.74] typ. 0.156 [3.96] typ. 0.0625 [1.59] typ. 1.812 [46.02] 1.500 [38.10] ref. 0.054 [1.37] typ. 0.093 [2.36] dia. typ. 0.108 [2.74] typ. 0.156 [3.96] typ. 0.324 [8.23] ref. 0.625 [15.88] 0.0625 [1.59] typ. 0.108 [2.74] typ. 0.216 [5.49] ref. 0.093 [2.36] dia. typ. 0.375 [9.53] ref. 0.125 [3.18] typ. b a b a c b a c b a a b c c b a c ba a b c b a b c a c
sm20 rack and panel connectors subminiature rectangular vishay dale document number: 36010 for technical questions contact: connectors@vishay.com www.vishay.com revision: 05-may-09 18 dimensions in inches [millimeters] note: the views below show the wiring side of a pin model connector (female is opposite). so cket hardware is assembled at ?a? contac t end of a pin model connector. 42 contacts 34 contacts 26 contacts 14 contacts 20 contacts 5 contacts 7 contacts 11 contacts 75 contacts 50 contacts typical end view 75 contacts typical end view 34 thru 50 contacts 0.090 [2.29] typ. 0.156 [3.96] typ. 0.090 [2.29] typ. 0.156 [3.96] typ. male screwlock pin or guide pin female guide socket female screwlock socket or guide socket 0.220 [5.59] 0.560 [14.22] 1.812 [46.02] 2.06 [52.32] male guide pin 0.720 [18.29] 0.170 [4.32] 1.50 [38.10] 1.25 [31.75] 0.340 [8.64] 0.250 [6.35] 0.340 [8.64] 0.500 [12.70] 1.56 [39.62] 1.312 [33.32] 0.500 [12.70] 0.340 [8.64] 0.250 [6.35] 1.82 [46.23] 1.562 [39.68] a d h l p t w z c b e j m r u x a c f k n s v y b d a e k p u y cc hh mm b f l r v z dd jj c h m s w aa ee kk nn d j n t x bb ff ll a e k p u y cc hh mm ss ww b f l r v z dd jj nn tt c h m s w aa ee kk pp uu xx d j n t x bb ff ll rr vv a h p w c j r x ad al at az bf b j r x d k s y ae am au ba c k s y f m t z af an av bb bh d l t z g n u aa a h ap aw bc e m u a h p v ab aj ar ax bo bj f n v b i p w ac ak as ay be a e k p u y cc hh mm ss ww a e b xx zz tt nn jj dd z v r l f b c h m s w aa ee kk pp uu yy c f d j n t x bb ff ll rr vv d 0.500 [12.70] 0.340 [8.64] 0.250 [6.35] 1.812 [46.02] 2.06 [52.32] a 0.230 [5.84] 0.090 [2.29] r typ. 0.780 [19.81] 0.531 [13.49] b e d c a a c e h b f d 0.625 [15.88] 0.870 [22.10] 0.230 [5.84] 0.340 [8.64] 0.170 [4.32] 0.625 [15.88] 0.870 [22.10] a d h l b e j c f k m 0.170 [4.32] 1.25 [31.75] 1.0 [25.40] 0.340 [8.64] a d h l p t w b e j m r u f k n s v x c 0.170 [4.32] 0.750 [19.05] 1.0 [25.40] 0.340 [8.64] a d h l b e r c f k n j m p
www.vishay.com for technical questions contact: connectors@vishay.com document number: 36010 19 revision: 05-may-09 sm20 vishay dale rack and panel connectors subminiature rectangular note (1) to order complete connector with hardware supplied unasse mbled, add suffix ?ua? on end of hardware designation. panel cutout in inches [millimeters] number of contacts a b c d figure 5 0.230 [5.84] 0.531 [13.49] 0.410 [10.41] - i 7 0.230 [5.84] 0.625 [15.88] 0.500 [12.70] - 11 0.340 [8.64] 0.625 [15.88] 0.530 [13.46] - 14 0.340 [8.64] 0.750 [19.05] 0.620 [15.75] - 20 0.340 [8.64] 1.0 [25.40] 0.910 [23.11] - 26 0.340 [8.64] 1.25 [31.75] 1.16 [29.46] - 34 0.500 [12.70] 1.312 [33.32] 1.16 [29.46] 0.343 [8.71] ii 42 0.500 [12.70] 1.562 [39.68] 1.41 [35.81] 0.343 [8.71] 50 0.500 [12.70] 1.812 [46.02] 1.66 [42.16] 0.343 [8.71] 75 0.720 [18.29] 1.812 [46.02] 1.66 [42.16] 0.562 [14.28] iii figure i 0.093 [2.36] dia. typ. d b c a a d 0.312 [7.93] b c a b 0.093 [2.36] c dia. typ. 0.218 [5.54] figure iii 0.093 [2.36] figure ii 0.093 [2.36] ordering information - examples: smbs20-26sk035 = female, 26 b erylli u m copper socket contacts w ith socket head kno b s on t u rna b le scre w locks for #20 a w g w iring. smp20-14sl3 = male, 14 contact pins, fixed scre w locks w ith 3-4 8 threads for #20 a w g w iring. b co n tact type (optio n al) b = berylli u m copper, socket contacts (solder c u p) d = dip solder contacts c co n tacts (optio n al) closed entry socket contacts only. omit for standard contacts. 027 (1) hard w are optio n s (omit if no hard w are desired) 027 = slotted cres g u ides 0.090" [2.29 mm] diameter sk = t u rna b le scre w locks w ith 2-56 threads sk3 = t u rna b le scre w locks w ith 3-4 8 threads sl = fixed scre w locks w ith 2-56 threads sl3 = fixed scre w locks w ith 3-4 8 threads sk030 = t u rna b le scre w locks w ith short slotted kno b s sk035 = t u rna b le scre w locks w ith socket head kno b s sk3030 = t u rna b le scre w locks w ith short slotted kno b s w ith 3-4 8 threads sk3035 = t u rna b le scre w locks w ith socket head kno b s w ith 3-4 8 threads 20 co n tact size #20 a w g s co n tact style p = pin s = socket sm model s ub miniat u re r (optio n al) (optio n al) r = re v ersed g u ides or scre w locks omit for standard 5, 7, 11, 14, 20, 26, 34, 42, 50, 75 26 n umber of co n tacts g plati n g optional plating a v aila b le: g = gold (0.00003 thick) o v er nickel g5 = gold (0.00005 thick) o v er nickel omit designator for gold (0.00001 thick) o v er nickel ?
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