308 p&b dimensions are shown for reference purposes only. dimensions are in inches over (millimeters) unless otherwise specified. catalog 1308242 issued 3-03 specifications and availability subject to change. www.tycoelectronics.com technical support: refer to inside back cover. the mercury-wetted contact relay represents one of the more sophisticated types of relays made today. the early pioneer work in mercury-wetted contact switching dates back to the 1950s, as telephone laboratory scientists sought out the perfect contact. mercury- wetted contacts represent the nearest thing to the perfect contact yet developed, being characterized by such parameters as: bounce-free operation; very low and stable contact resistance; hermetic protection; fast operating speeds; form c or form d contact, action contact life measured in billions of operations. the only major weakness of a mercury- wetted contact relay is the necessity to mount the relay within 30 of a vertical position, due to its position sensitivity. while there are several variations of the mercury-wetted contact relay on the market, the basic contact element has essential concepts in common. the mercury-wetted contact element consists of a glass-encapsulated nickel-iron reed with its base immersed in a pool of mercury. the free reed cantilever projects upward between sets of stationary contact electrodes, which have been glass-sealed in proper juxtaposition at the top of the glass chamber. the mercury is induced to flow up the cantilever by capillary action, wetting mercury on both the cantilever contact tip as well as the stationary contacts. thus a mercury-to-mercury contact is maintained on both the normally-closed and normally-open contacts, and the system is self-replenishing. the 2-ampere mercury-wetted capsule is shown far left. along with the inherent fast actuation of the capsule and excellent load-handling capacity, the mercury-wetted contacts exhibit extremely long life, as the mercury films re-establish at each closure and contact erosion is eliminated. contact interface resistance is very low and stable, and as the mercury films are elastic, contact bounce is eliminated. a dynamic sequence of the mercury-wetted contact action is shown below. while the below sequence portrays a form d (make-before-break) contact action, a true form c (break-before-make) contact can be provided by proper control of the mercury film dynamics and the contact electrode spacing. the mercury-wetted contact capsules generally are mounted within a coil assembly, and with appropriately mounted bias magnets, mounting base and magnetic shielded enclosures. the more popular assemblies contain one or two capsules in a convenient printed circuit mounting module. mercury-wetted relays can be adjusted to operate with very low levels of input power, in the order of 10-20 milliwatts. thus, power gain switching of as great as 10,000 can be realized. for all but very light contact loads, contact protection is required to limit the current or voltage rise time across the contacts. (1) mercury (shown in black) covers armature and contact points; (2) and (3) as armature moves from open to closed position, me rcury filament joins both contacts momentarily; (4) ruptured mercury surfaces accelerate away from each other, providing rapid breaking action; (5) as contact surfaces join, m ercury wetting dampens rebound, eliminates electrical chatter, and provides contact reliability. 2 ampere capsule material rating (switched load) (carry load) bridging and transfer time contact resistance life expectancy mercury-wetted 2 amperes 5 amperes when operated by a single 14 milliohms typical; 1 billion platinum contacts maximum maximum dc pulse, the bridging or 20 milliohms maximum operations hermetically 500 volts maximum not switched transfer time will be greater stable within minimum sealed in an 100 va maximum than 50 microseconds, but 2 milliohms at rated load inert atmosphere less than 500 microseconds. throughout life. 159/160 series mercury-wetted reed relays users should thoroughly review the technical data before selecting a product part number. it is recommended that users also seek out the pertinent approvals files of the agencies/laboratories and review them to ensure the product meets the requirements for a given application. form d mercury-wetted contact action as seen in high-speed sequence spdt (form c or form d) contact specifications general information
309 p&b dimensions are shown for reference purposes only. dimensions are in inches over (millimeters) unless otherwise specified. catalog 1308242 issued 3-03 specifications and availability subject to change. www.tycoelectronics.com technical support: refer to inside back cover. t h e e s s e n t i a l l y infinite life of mercury-wetted contact relays may only be realized if the requirements for suitable contact protection are o bserved. in that the goal is control of the rate of rise of voltage across the contacts when the circuit is opened (rather than peak tra nsient limiting), the only suitable protection recognized is an rc network. values of r and c may be calculated using the formula shown, or may be obtained from the direct reading nomograph. i = s t e a d y s t ate current at time of circuit opening e=open circuit voltage find i on the ordinate scale. read c on the scale adjacent to i. r is found at the intersection of i and e. to reduce voltage transient amplitudes, c may be increased up to 10 times calculated values. (r must be calculated value.) for i=0.5 amps or less and e=50 volts or less r may be omitted c must be calculated value er less than 70v r up to 2r 70v to 100v 50% 100v to 150v 10% greater than 150v 5% parameter 159 series 160 series coils single woundCmax. ohms 8,600 9,000 double woundCmax. ohms 4,275 4,500 ratingCwatts continous 2.0 1.75 temp. riseCc per watt 30 35 dielectric breakdown Crms, 60hz 1,000 1,000 insulation resistance CmegohmsC500 vdc 1,000 1,000 capacitance Carmature to coi pf, typical 9.0 9.0 electrostatic shielding Coptional yes yes typical operate times Cms, 2x must operate 1-3 1-3 typical release times Cms, 2x 2.5 2.5 contact form available form c, d form c, d adjustments available single-side-stable yes yes bi-stable yes yes polar 1% balance yes yes temperature range operating c all types C 38.8c to + 85c storage c all types C 65c to + 100c weight Counces 2.0 0.5 encapsulant polyurethane polyurethane mounting method pcb pcb mercury-wetted relays contact protection nomograph explanation resistor tolerances specifications
310 p&b dimensions are shown for reference purposes only. dimensions are in inches over (millimeters) unless otherwise specified. catalog 1308242 issued 3-03 specifications and availability subject to change. www.tycoelectronics.com technical support: refer to inside back cover. coils coil resistance (ohms) must operate current (ma-dc ) must operate voltage (vdc) must release voltage (vdc) maximum voltage (vdc) form c part number form d 1a 1b 1c 1d 1e 1f 1g 1h 1j 1k 1l 1m 1n 1p 1q 1r 1t 1u 1v 2.2 3.9 6.4 9.0 14 24 34 56 86 140 225 385 620 940 1,450 2,430 3,620 5,500 8,600 116 86 67 60 47 35 32 24 20 15 12 9.0 7.0 5.8 4.8 3.6 2.9 2.5 2.0 .28 .37 .47 .60 .72 .93 1.2 1.5 1.9 2.3 2.9 3.8 4.8 6.0 7.7 9.7 12 15 19 .06 .07 .09 .12 .15 .19 .24 .30 .39 .46 .59 .73 .95 1.2 1.6 2.0 2.3 3.0 3.8 2.1 2.8 3.6 4.3 5.3 6.9 8.2 11 13 17 21 28 35 43 54 70 85 105 130 159 series relays are available in a form c or form d 2 amp contact arrangement, single or dual coil and printed circuit board terminals. weight: 1.0 ounce positive potential applied to the start of the winding indicated by the symbol will close the contacts shown open on the electrical schematics. for reset of bistable relays, reversed polarity must be applied. contacts and adjustment enclosure and terminals coils 1C.625 ht., .125 lg. 2C.625 ht., .156 lg. 3C.625 ht., .187 lg. 4C.625 ht., .250 lg. 0Cspecial 1C1d single-side-stable 2C1d bistable 5C1c single-side-stable 6C1c bistable 7C1c dynamic (1%) balanced bistable 0Cspecial 1a-1zCsingle coil 2k-2vCdouble coil 7a-7tCsingle coil 8a-8zCbifilar coil 9a-9zCdouble coil (concentric) 1s and 2sCspecial 00Cstandard a1-z9Cspecial customer requirement standard or special note: relay must be mounted within 30 of vertical and suitable contact protection must be used. example: 159-151n00 is a 159 series relay, enclosure height of .625 in., pin length of .125 in., form c contact, single-side-st able adjustment, single coil 1n, of completely standard construction. 159-151a00 159-151b00 159-151c00 159-151d00 159-151e00 159-151f00 159-151g00 159-151h00 159-151j00 159-151k00 159-151l00 159-151m00 159-151n00 159-151p00 159-151q00 159-151r00 159-151t00 159-151u00 159-151v00 159-111a00 159-111b00 159-111c00 159-111d00 159-111e00 159-111f00 159-111g00 159-111h00 159-111j00 159-111k00 159-111l00 159-111m00 159-111n00 159-111p00 159-111q00 159-111r00 159-111t00 159-111u00 159-111v00 one winding single-side-stable 40 milliwatts single coil double coil features coil characteristics and part numbers part numbering system outline dimensions wiring diagrams 159 series mercury-wetted reed relays relay series 160
311 p&b dimensions are shown for reference purposes only. dimensions are in inches over (millimeters) unless otherwise specified. catalog 1308242 issued 3-03 specifications and availability subject to change. www.tycoelectronics.com technical support: refer to inside back cover. 2k 2l 2m 2n 2p 2q 2r 2t 2u 2v 70/70 115/115 190/190 325/325 490/490 730/730 1250/1250 1860/1860 2760/2760 4275/4275 15 12 9.0 7.0 5.8 4.8 3.6 3.0 2.5 2.0 .30 .37 .47 .62 .77 .97 1.2 1.5 1.8 2.3 1.2 1.5 1.9 2.5 3.1 3.9 5.0 6.0 7.5 9.2 12 15 19 26 31 38 50 61 74 92 500 500 400 400 400 400 400 200 200 200 159-162k00 159-162l00 159-162m00 159-162n00 159-162p00 159-162q00 159-162r00 159-162t00 159-162u00 159-162v00 159-122k00 159-122l00 159-122m00 159-122n00 159-122p00 159-122q00 159-122r00 159-122t00 159-122u00 159-122v00 coils coil resistance (ohms) must operate current (ma-dc) (either winding) must operate voltage (vdc) (either winding) must release voltage (vdc) (either winding) maximum voltage (vdc) (either winding) form c part number form d 2k 2l 2m 2n 2p 2q 2r 2t 2u 2v 70/70 115/115 190/190 325/325 490/490 730/730 1250/1250 1860/1860 2760/2760 4275/4275 30 23 18 14 12 9.6 7.2 5.8 5.0 3.9 2.3 3.0 3.8 5.0 6.2 7.7 10 12 15 18 .47 .60 .79 1.0 1.3 1.6 2.0 2.5 3.0 3.8 12 15 19 26 31 38 50 61 74 92 dielectric stand off between coils (vdc) 500 500 400 400 400 400 400 200 200 200 159-152k00 159-152l00 159-152m00 159-152n00 159-152p00 159-152q00 159-152r00 159-152t00 159-152u00 159-152v00 159-112k00 159-112l00 159-112m00 159-112n00 159-112p00 159-112q00 159-112r00 159-112t00 159-112u00 159-112v00 8a 8b 8c 8d 8e 8f 8g 8h 8j 8k 135/135 170/170 200/200 310/310 460/460 675/675 810/810 1000/1000 1240/1240 2300/2300 16 15.5 13.3 11.9 7.8 6.5 6.85 6.75 5.6 3.82 .48 .58 .58 .82 .80 .96 1.2 1.5 1.4 1.9 2.4 2.9 2.9 4.1 4.0 4.8 6.1 7.4 7.0 9.7 16.4 18.5 20.0 24.9 30.3 36.7 40.2 44.7 49.8 67.8 500 400 400 400 400 400 400 400 400 200 159-168a00 159-168b00 159-168c00 159-168d00 159-168e00 159-168f00 159-168g00 159-168h00 159-168j00 159-168k00 159-128a00 159-128b00 159-128c00 159-128d00 159-128e00 159-128f00 159-128g00 159-128h00 159-128j00 159-128k00 note: all values at 25c. resistances specified are 10%. maximum voltages based on 2 watts continuous dissipation. nominal resistance (ohms) must operate current (ma-dc) must operate voltage (vdc) must release voltage (vdc) maximum voltage (vdc) form c part number part number form d 18 65 85 90 115 275 450 675 940 950 1250 1425 1800 1950 2400 4000 4000 66.6 37.4 33.3 37.7 30.0 17.0 12.9 11.6 10.1 12.1 9.4 8.3 9.4 7.5 7.35 5.55 1.3 2.7 3.1 3.8 3.8 5.2 6.4 8.6 10.5 12.7 12.9 13 18.6 17.6 20.6 24.4 17.6 .18 .36 .42 .51 .51 .77 .85 1.1 1.4 1.7 1.8 1.8 2.6 2.1 2.6 3.3 2.4 must operate current (ma-dc) must operate voltage (vdc) must release voltage (vdc) 31.2 17.8 15.6 17.6 14.0 8.0 6.0 5.4 4.7 5.7 4.4 3.9 4.4 3.5 3.4 2.6 1.9 .12 .26 .30 .36 .36 .50 .60 .80 .98 1.2 1.2 1.2 1.7 1.5 1.8 2.3 1.6 .62 1.3 1.5 1.8 1.8 2.5 3.0 4.0 4.9 6.0 6.1 6.2 8.8 7.5 9.0 8.3 6.0 11.4 13.0 13.4 15.1 23.4 30.0 36.7 43.3 43.6 50.0 53.4 60.0 62.4 69.2 89.5 89.5 159-157a00 159-157b00 159-157c00 159-157d00 159-157e00 159-157f00 159-157g00 159-157h00 159-157j00 159-157k00 159-157l00 159-157m00 159-157n00 159-157p00 159-157q00 159-157r00 159-157t00 159-117a00 159-117b00 159-117c00 159-117d00 159-117e00 159-117f00 159-117G00 159-117h00 159-117j00 159-117k00 159-117l00 159-117m00 159-117n00 159-117p00 159-117q00 159-117r00 159-117t00 form c form d 159-167a00 159-167b00 159-167c00 159-167d00 159-167e00 159-167f00 159-167g00 159-167h00 159-167j00 159-167k00 159-167l00 159-167m00 159-167n00 159-167p00 159-167q00 159-167r00 159-167t00 159-127a00 159-127b00 159-127c00 159-127d00 159-127e00 159-127f00 159-127g00 159-127h00 159-127j00 159-127k00 159-127l00 159-127m00 159-127n00 159-127p00 159-127q00 159-127r00 159-127t00 single-side-stable bistable two windings single-side-stable 80 milliwatts per winding 159 series (continued) C coil characteristics and part numbers two windings single-side-stable 40 milliwatts per winding two windings bifilar windings bistable 40 milliwatts per winding one winding single-side-stable 115 milliwatts and bistable 25 milliwatts
312 p&b dimensions are shown for reference purposes only. dimensions are in inches over (millimeters) unless otherwise specified. catalog 1308242 issued 3-03 specifications and availability subject to change. www.tycoelectronics.com technical support: refer to inside back cover. 160 series relays are available in a single form c or form d two ampere contact arrangement, single or dual coil and printed circuit board terminals. the part numbers shown on the adjacent page are for relays with 0.093 terminal spacing. the part number designator for the 0.100 grid is a 160- 3xxxxx for a pin of 0.09 length, and 160-4xxxxx for a pin of 0.125 length. positive potential applied to the start of the winding indicated by the symbol will close the contacts shown open on the electrical schematics. for reset of bistable relays, reversed polarity must be applied. weight 0.5 ounces. ul file e55708 note: relay must be mounted within 30 of vertical and suitable contact protection must be used. coil coil resistance (ohms) must operate current (ma-dc) (either winding) must not operate voltage (vdc) (either winding) must operate voltage (vdc) (either winding) maximum voltage (vdc) (one winding only) form c part number form d 2k 2l 2m 2n 2p 2q 2r 2t 2u 2v 2w 60/60 90/90 155/155 205/205 340/340 560/560 870/870 1320/1320 1980/1980 3000/3000 4500/4500 17 15 11 10 7.5 6.0 4.7 3.8 3.2 2.7 2.1 .29 .38 .49 .61 .73 .98 1.2 1.4 1.8 2.3 2.8 1.1 1.5 1.9 2.3 2.8 3.6 4.5 5.5 7.0 9.0 11.0 10 13 16 19 24 31 39 48 59 73 89 dielectric standoff between coils (vdc) 500 400 400 400 400 400 200 200 200 200 200 enclosures and terminals relay series contacts and adjustments 160 1C.090 lg., .093 grid 2C.125 lg., .093 grid 3C.090 lg., .100 grid 4C.125 lg., .100 grid 0Cspecial 1C1d single-side-stable 2C1d bistable 5C1c single-side-stable 6C1c bistable 7C1c dynamic (1%) balanced bistable 0Cspecial 1a-1zCsingle coil 2a-2zCdouble coil 1sCspecial single coil 2sCspecial double coil coil 00Cstandard a1-z9Cspecial customer requirement standard or special example: 160-151k00 is a 160 series relay, enclosure height of .400 in., pin length of .090 in., form c contact, single-side-st able adjustment, single coil 1k, of completely standard construction. 160-162k00 160-162l00 160-162m00 160-162n00 160-162p00 160-162q00 160-162r00 160-162t00 160-162u00 160-162v00 160-162w00 160-122k00 160-122l00 160-122m00 160-122n00 160-122p00 160-122q00 160-122r00 160-122t00 160-122u00 160-122v00 160-122w00 note: all values at 25c. resistances specified are 10%. maximum voltages based on 1.75 watts continuous dissipation. single coil double coil grid 0.093 (160-1) (160-2) grid 0.100 (160-3) (160-4) t w o w i n d i n g s b i s t a b l e 2 0 m i l liwatts per winding coil characteristics and part numbers part numbering system features outline dimensions wiring diagrams 160 series mercury-wetted reed relays
313 p&b dimensions are shown for reference purposes only. dimensions are in inches over (millimeters) unless otherwise specified. catalog 1308242 issued 3-03 specifications and availability subject to change. www.tycoelectronics.com technical support: refer to inside back cover. coil resistance (ohms) must operate current (ma-dc) (either winding) must not operate voltage (vdc) (either winding) must operate voltage (vdc) (either winding) maximum voltage (vdc) (one winding only) form c part number form d 60/60 90/90 155/155 205/205 340/340 560/560 870/870 1,320/1,320 1,980/1,980 3,000/3,000 4,500/4,500 33 29 22 20 15 10.8 9.3 7.5 6.4 5.3 4.2 2.2 2.9 3.7 4.5 5.6 7.9 9.0 11.0 14.0 18.0 21.0 .44 .58 .74 .92 1.1 1.3 1.8 2.2 2.8 3.5 4.2 10 13 16 19 24 31 39 48 59 73 89 dielectric standoff between coils (vdc) 500 400 400 400 400 400 200 200 200 200 200 160-152k00 160-152l00 160-152m00 160-152n00 160-152p00 160-152q00 160-152r00 160-152t00 160-152u00 160-152v00 160-152w00 160-112k00 160-112l00 160-112m00 160-112n00 160-112p00 160-112q00 160-112r00 160-112t00 160-112u00 160-112v00 160-112w00 coil resistance (ohms) must operate current (ma-dc) must operate voltage (vdc) must release voltage (vdc) maximum voltage (vdc) form c part number form d 2.2 3.1 4.4 5.9 13.0 18.7 27.7 50 70 125 185 325 435 680 1,120 1,750 2,650 3,900 6,100 9,000 113 103 90 80 49 43 36 25 23 16 14 11 10 7.5 5.9 4.6 3.8 3.2 2.6 2.1 .27 .35 .43 .52 .71 .87 1.1 1.4 1.8 2.3 2.9 3.8 4.6 5.7 7.2 8.8 11 14 17 21 .05 .07 .08 .10 .14 .18 .22 .28 .35 .46 .60 .77 .94 1.1 1.4 1.7 2.2 2.7 3.5 4.2 2.0 2.3 2.8 3.2 4.8 5.7 7.0 9.4 11 15 18 24 28 35 44 55 68 83 103 125 160-151a00 160-151b00 160-151c00 160-151d00 160-151e00 160-151f00 160-151g00 160-151h00 160-151j00 160-151k00 160-151l00 160-151m00 160-151n00 160-151p00 160-151q00 160-151r00 160-151t00 160-151u00 160-151v00 160-151w00 160-111a00 160-111b00 160-111c00 160-111d00 160-111e00 160-111f00 160-111g00 160-111h00 160-111j00 160-111k00 160-111l00 160-111m00 160-111n00 160-111p00 160-111q00 160-111r00 160-111t00 160-111u00 160-111v00 160-111w00 one winding single-side-stable 40 milliwatts 160 series (continued) C coil characteristics and part numbers two windings single-side-stable 80 milliwatts per winding
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