148, 149 vishay spectrol 1/2" (12.7 mm) conductive plastic and cermet potentiometer www.vishay.com for technical questions, contact: sfer@vishay.com document number: 57040 102 see also application notes: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 revision: 05-may-11 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 features ? robust construction ? high rotatio nal life (50 000 cycles) ? up to three sections pc support plates ? rotary switches and solder lugs terminals available ? tests according to cecc 41000 or iec 60393-1 ? compliant to rohs directive 2002/95/ec 148 features ? conductive plastic element ? quiet electrical output 149 features ? cermet element ? low temperature coefficient ( 150 ppm/c) dimensions in millimeters (inches) 0.5 mm ( 0.02 " ) 12.5 (0.492) 12.5 (0.492) (0.648) 16.45 2.54 2.54 (0.100) (0.100) 123 123 123 7.62 (0.300) thread 1/4 32- n ef-2a 0.30 (0.012) 5.07 (0.200) single, dual or triple front and rear support plates e = flush with board surface dual single 5.08 (0.200) 5.08 (0.200) 12.50 (0.492) solder lug terminals 0.8 (0.031) 0.80 (0.031) 4.7 (0.185) 4.70 (0.185) 8.83 (0.348) 6.35 (0.250) 6.35 (0.250) 6.35 (0.250) 3.85 (0.151) 1.52 (0.06) 0.6 (0.024) 0.6 (0.024) 0.60 (0.024) 8.85 (0.341) 3.17 (0.125) 12.5 (0.492) 0.6 (0.024) 12.5 (0.492) 2.54 (0.100) 2.54 (0.100) 7.62 (0.300) 3.85 (0.151) 1.52 (0.06) 1.2 (0.047) 12.5 (0.492) 4.65 (0.183) 4.65 (0.183) 1.800 (0.071) 2.4 (0.094) 4.900 (0.193) 6.35 (0.250) 8.0 (0.315) 0.9 (0.035) 0.300 (0.012) 4.770 (0.188) 9.52 (0.375) thread 3/8 32- n ef-2a
document number: 57040 for technical questions, contact: sfer@vishay.com www.vishay.com revision: 05-may-11 see also application notes: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 103 148, 149 1/2" (12.7 mm) conduc tive plastic and cermet potentiometer vishay spectrol this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 electrical specifications parameter 148 149 resistance ran g e linear 1 k ? to 1 m ? 100 ? to 2 m ? non-linear 500 ?? to 500 k ? 250 ?? to 1 m ? tolerance linear 10 % 10 % non-linear 20 % on request 10 % 10 % linearity (typical) 5 % independent end resistance 4 ?? maximum each end power ratin g 0.5 w at 70 c 0 w at 120 c 1 w at 70 c 0 w at 150 c non-linear or pc mount, derate 50 % circuit dia g ram effective rotation 270 10 without rotary switch 240 10 with rotary switch contact resistance variation 1.5 % of total resistance 3 % of total resistance maximum continuous workin g volta g e 350 v ac across end terminals, but within power rating dielectric withstandin g volta g e sea level - 750 v ac mechanical specifications mechanical travel 300 5 operatin g torque (typical) single section 0.2 oz. to 3.0 oz. - in dual or triple section 0.3 oz.-inch to 4.5 oz.-inch end stop torque bushin g a and b 2.1 lb-inch max. bushin g f 6. 8 lb-inch max. wei g ht (approx.) sin g le 0.19 oz. dual 0.27 oz. triple 0.35 oz. terminals electrical elements e3: pure sn switch elements e4: gold plated environmental specifications 148 149 operatin g temperature - 40 c to + 125 c - 40 c to + 125 c stora g e temperature - 55 c to + 125 c - 55 c to + 125 c temperature cyclin g (5 cycles) - 40 c to + 125 c (4 % ? r t ) - 40 c to + 125 c (3 % ? r t ) load life (1000 h rated load at 70 c) 10 % ? r t 5 % ? r t mechanical endurance 50 000 cycles tcr (typical) 500 ppm/c 150 ppm/c sealin g ip64 a (1) b (2) c (3) cw
148, 149 vishay spectrol 1/2" (12.7 mm) conducti ve plastic and cermet potentiometer www.vishay.com for technical questions, contact: sfer@vishay.com document number: 57040 104 see also application notes: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 revision: 05-may-11 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 locating pegs (anti-rotation lug) the locating peg is provided by a plate mounted on the bushing and positioned by the module si des. four set positions are available, clock face orientation: 12, 3, 6, 9. code version bushing a, b bushing f effective high peg all 14 8 , 149 bushings have a double flat. when panel mounting holes have been punched accordingly, an anti-rotation lug is not necessary. a ? d mm 2 2 0.7 l mm 6.2 6.2 - b ? d mm 2 2 0.7 l mm 7.75 7.75 - c ? d mm - 3.5 1.1 l mm - 13.5 - locating pegs are supplied in separate bags with nuts and washers rsid option: rotary switch modules ? rotary switches ? current up to 2 a ? spdt: single pole, changeover switch in ccw position - 3 pins ? sealing ip60 modules: rs on/off switch rsi changeover switch the position of each module is free. rs and rsi rotary switches are housed in a standard 14 8 , 149 module size 12.7 mm x 12.7 mm x 5.0 8 mm (0.5" x 0.5" x 0.2"). they have the same terminal styl es as the assembled electrical modules. an assembly can comprise 1 or more switch modules. switch actuation is described as seen from the shaft end. d:means actuation in maximum ccw position the switch actuation travel is 25 with a total mechanical travel of 300 5 and electrical travel of electrical modules is 23 8 10. rsid single pole changeover in full ccw position, the contact is made between 3 and 2 and open between 3 and 1. switch actuation (cw direction) reverses these positions. switch specifications switching power maximum 62.5 va ?? 15 va = switching current maximum 0.25 a 250 v ? 0.5 a 30 v = maximum current through element 2 a contact resistance 100 m ? dielectric strength terminal to terminal 1000 v rms terminal to bushing 2000 v rms maximum voltage operation 250 v ?? 30 v = insulation resistance between contacts 10 6 m ? life at p max. 10 000 actuations minimal travel 25 operating temperature - 40 c to + 8 5 c electrical diagram note (1) common 12 l 3 6 9 ? d rsid ccw position 1 3 (1) 2
document number: 57040 for technical questions, contact: sfer@vishay.com www.vishay.com revision: 05-may-11 see also application notes: www.vishay.com/doc?51001 and www.vishay.com/doc?52029 105 148, 149 1/2" (12.7 mm) conduc tive plastic and cermet potentiometer vishay spectrol this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 ordering information (part number) model number of modules switch bushing locating peg shaft shaft end leads resistance code/tolerance/ taper or special 14 8 = plastic conductive 149 = cermet element 1 2 3 1 = rsid 0 = without switch see table ?bushing? 0 = without a b c see table ?shaft? s = slotted on request: r = round f = flatted see table ?leads? resistance code: 101 = 100 ? to 105 = 1 m ? tolerance code: m = 20 %; k = 10 % taper: a (s); l (z); f (r) or special code given by vishay bushing ? l old codes a 1/4" 1/4" n b 1/4" 3/ 8 "j f 3/ 8 "3/ 8 "g leads type pin spacing space between modules old codes x10 pcb pins 2.54 mm (0.100") n/a p x13 7.62 mm (0.300") a10 pcb pins and support plates 2.54 mm (0.100") n/a e a13 7.62 mm (0.300") y00 sold, lugs 4.65 mm (0.1 8 3") n/a s y03 7.62 mm (0.300") shaft ? l old codes bb 1/ 8 "1/2" 32 bg 1/ 8 "5/ 8 "40 bh 1/ 8 "3/4" 4 8 bj 1/ 8 "7/ 8 "56 gb 1/4" 1/2" 32 gg 1/4" 5/ 8 "40 gh 1/4" 3/4" 4 8 gj 1/4" 7/ 8 "56 gl 1/4" 1" 64 gn 1/4" 1 1/4" 8 0 part number description (for information only) 148 1 0 f 0 gj s x10 bo50 10k 10 % a e3 model modules switch bushing locating peg shaft shaft leads pack. value tol. taper special special lead finish 0f0gjsx 0 0 k 8 1 1 4 113 a
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