series rec 38 l www.vishay.com vishay sfernice revision: 08-sep-16 1 document number: 54010 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 precision linear transducers, conductive plastic, up to 150 mm the 38 l is a very compact mo del especially designed for precise measurement of short travels. features ? measurement range 12.5 mm to 150 mm ? high accuracy 1 % down to 0.1 % ? long life ? essentially infi nite resolution ? very small dimension: external diameter = 9.52 mm ? material categorization: fo r definitions of compliance please see www.vishay.com/doc?99912 note ? nothing stated herein shall be construed as a guarantee of quality or durability. quick reference data sensor type linear, conductive plastic output type wires market appliance professional dimensions 9.52 mm dia. rohs compliant electrical specifications theoretical electrical travel (tet) from 12.5 mm to 150 mm see table 1 actual electrical travel (aet) aet = tet + 1 mm independent linearity (over tet) ? 1 % - ? 0.5 % ? 0.25 % for e ? 25 mm ? 0.1 % for e ? 50 mm repeatability ? 0.01 % ohmic values (r t ) from 400 ? /cm to 4 k ? /cm resistance tolerance at 20 c 20 % wiper current recommended: a few a - 1 ma max. (continuous) load resistance minimum 10 3 x r t insulation resistance ? 1000 m ? , 500 v dc dielectric strength ? 500 v rms , 50 hz mechanical specifications mechanical travel (mt) mt = tet + 3 mm 1 mm housing anodized aluminum operating force 0.35 n typical termination 3 wires ptfe awg 26 length: 300 mm wiper precious metal multifinger performance operating life 25 million cycles typi cal/1 hz/t = 20 c 5 c/80 % tet temperature range - 55 c to +125 c sine vibration on 3 axes 1. 5 mm peak to peak or 15 g - 10 hz - 2000 hz mechanical shocks on 3 axes 50 g -11 ms - half sine
series rec 38 l www.vishay.com vishay sfernice revision: 08-sep-16 2 document number: 54010 for technical questions, contact: sferprecisionpot@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 dimensions in millimeters, general tolerance 1 mm table 1 size tet mt a 38 l0.5 12.5 15.5 43.5 38 l01 25 28 56 38 l02 50 53 81 38 l03 75 78 106 38 l04 100 103 131 38 l05 125 128 156 38 l06 150 153 181 electrical connections ordering information/description rec 38 l 0.5 c 102 w... e1 series model number of tracks electrical travel linearity ohmic value modifications lead finish l = 1 track 0.5 = 12.5 mm 1 = 25 mm 2 = 50 mm 3 = 75 mm 4 = 100 mm 5 = 125 mm 6 = 150 mm a: 1 % b: 0.5 % c: 0.25 % d: 0.1 % first 2 digits are significant numbers 3 rd digit indicates number of zeros special feature code number sn ag cu sap part numbering guidelines re 38 l 0.5 c 102 w.... series model tet linearity ohmic value special features 3 wires awg 28 lg: 3 00 mm thermo?t sleeve 10 2: clamping area 10 2: clamping area ? 9.52 0.25 1 / 8 - 40 unc - 2a 10 min. 12.7 a g reen ye l l o w red tet aet mt tet = theoretical electrical travel aet = actual electrical travel mt = mechanical travel
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