s 1 ds_61a07_en_s: 270513d 4-gap balanced armature mechanism how it works (single side stable type) 2a2b/3a1b/4a 4 a polarized power relay s relays features 1. compact with high sensitivity the high-efficiency polarized electromagnetic circuits of the 4-gap balanced armature and our exclusive spring alignment method achieves, with high-sensitivity in a small package, a relay that can be directly controlled by a driver chip. 2. strong resistance to vibration and shock use of 4g-ba technology realizes strong resistance to vibration and shock. 3. high reliability and long life our application of 4g-ba technology, along with almost perfectly complete twin contact, ensures minimal contact bounce and high reliability. 4. ability to provide wide-ranging control use of 4g-ba technology with gold- clad silver alloy contacts in a twin contact structure enables control across a broad range from microcurrents of 100 ? a 100 mv dc to 4 a 250 v ac. 5. latching types available with 4g-ba technology, as well as single side stable types, convenient 2 coil latching types for circuit memory applications are also available. 6. wide variety of contact formations available the compact size of the 4g-ba mechanism enables the provision of many kinds of package, including 2a2b, 3a1b, and 4a. these meet your needs across a broad range of applications. 7. low thermal electromotive force relay high sensitivity (low power consumption) is realized by 4g-ba technology. separation of the coil and spring sections has resulted in a relay with extremely low levels of thermal electromotive force (approx. 0.3 ? v). 8. dil terminal array deployed to fit a 2.54 mm .100 inch grid, the terminals are presented in dil arrays which match the printed circuit board terminal patterns commonly in international use. 9. relays that push the boundaries of relay efficiency high-density s relays take you close to the limits of relay efficiency. 10.sockets are available. typical applications telecommunications equipment, data processing equipment, facsimiles, alarm equipment, measuring equipment. 1. armature mechanism has excellent resistance to vibration and shock the armature structure enables free rotation around the armature center of gravity. because the mass is maintained in balance at the fulcrum of the axis of rotation, large rotational forces do not occur even if acceleration is applied along any vector. the mechanism has proven to have excellent resistance to vibration and shock. all our s relays are based on this balanced armature mechanism, which is able to further provide many other characteristics. 2. high sensitivity and reliability provided by 4-gap balanced armature mechanism as a (polarized) balanced armature, the s relay armature itself has two permanent magnets. presenting four interfaces, the armature has a 4-gap structure. as a result, the rotational axis at either end of the armature is symmetrical and, in an energized into a polarized state, the twin magnetic armature interfaces are subject to repulsion on one side and attraction on the other. this mechanism, exclusive to panasonic, provides a highly efficient polarized magnetic circuit structure that is both highly sensitive and has a small form factor. moreover, suitability for provision with many types of contact array and other advantages promise to make it possible to provide many of the various characteristics that are coming to be demanded of relays. 1) when current is passed through the coil, the yoke becomes magnetic and polarized. 2) at either pole of the armature, repulsion on one side and attraction on the other side is caused by the interaction of the poles and the permanent magnets of the armature. 3) at this time, opening and closing operates owing to the action of the simultaneously moulded balanced armature mechanism, so that when the force of the contact breaker spring closes the contact on one side, on the other side, the balanced armature opens the contact (2a2b). axis repulsion attraction permanent magnet residual plate attraction repulsion n s n s n s
s 2 ds_61a07_en_s: 270513d ordering information types standard packing: tube: 50 pcs.; case: 500 pcs. rating 1. coil data 1) single side stable 2) 1 coil latching contact arrangement nominal coil voltage single side stable 1 coil latching 2 coil latching part no. part no. part no. 2 form a 2 form b 3v dc s2-dc3v s2-l-dc3v s2-l2-dc3v 5v dc s2-dc5v s2-l-dc5v s2-l2-dc5v 6v dc s2-dc6v s2-l-dc6v s2-l2-dc6v 12v dc s2-dc12v s2-l-dc12v s2-l2-dc12v 24v dc S2-DC24V s2-l-dc24v s2-l2-dc24v 48v dc s2-dc48v s2-l-dc48v s2-l2-dc48v 3 form a 1 form b 3v dc s3-dc3v s3-l-dc3v s3-l2-dc3v 5v dc s3-dc5v s3-l-dc5v s3-l2-dc5v 6v dc s3-dc6v s3-l-dc6v s3-l2-dc6v 12v dc s3-dc12v s3-l-dc12v s3-l2-dc12v 24v dc s3-dc24v s3-l-dc24v s3-l2-dc24v 48v dc s3-dc48v s3-l-dc48v s3-l2-dc48v 4 form a 3v dc s4-dc3v s4-l-dc3v s4-l2-dc3v 5v dc s4-dc5v s4-l-dc5v s4-l2-dc5v 6v dc s4-dc6v s4-l-dc6v s4-l2-dc6v 12v dc s4-dc12v s4-l-dc12v s4-l2-dc12v 24v dc s4-dc24v s4-l-dc24v s4-l2-dc24v 48v dc s4-dc48v s4-l-dc48v s4-l2-dc48v type nominal coil voltage pick-up voltage (at 20 ? c 68 ? f ) drop-out voltage (at 20 ? c 68 ? f ) nominal operating current [ ? 10%] (at 20 ? c 68 ? f ) coil resistance [ ? 10%] (at 20 ? c 68 ? f ) nominal operating power coil inductance max. allowable voltage (at 40 ? c 104 ? f ) standard 3v dc 70%v or less of nominal voltage (initial) 10%v or more of nominal voltage (initial) 66.7ma 45 ? 200mw approx. 23mh 5.5v dc 5v dc 38.5ma 130 ? 192mw approx. 65mh 9.0v dc 6v dc 33.3ma 180 ? 200mw approx. 93mh 11.0v dc 12v dc 16.7ma 720 ? 200mw approx. 370mh 22.0v dc 24v dc 8.4ma 2,850 ? 202mw approx. 1,427mh 44.0v dc 48v dc 5.6ma 8,500 ? 271mw approx. 3,410mh 75.0v dc type nominal coil voltage pick-up voltage (at 20 ? c 68 ? f ) drop-out voltage (at 20 ? c 68 ? f ) nominal operating current [ ? 10%] (at 20 ? c 68 ? f ) coil resistance [ ? 10%] (at 20 ? c 68 ? f ) nominal operating power coil inductance max. allowable voltage (at 40 ? c 104 ? f ) standard 3v dc 70%v or less of nominal voltage (initial) 10%v or more of nominal voltage (initial) 33ma 90 ? 99mw approx. 0.04mh 8.4v dc 5v dc 16ma 300 ? 80mw approx. 0.14mh 15.3v dc 6v dc 16ma 360 ? 96mw approx. 0.14mh 16.8v dc 12v dc 8ma 1450 ? 96mw approx. 0.6mh 33.7v dc 24v dc 4ma 5,700 ? 96mw approx. 2.05mh 66.7v dc 48v dc 3ma 16,000 ? 144mw approx. 8.9mh 111v dc coil voltage (dc) 3, 5, 6, 12, 24, 48 v contact arrangement 2: 2 form a 2 form b 3: 3 form a 1 form b 4: 4 form a s operating function nil: l: l2: single side stable 1 coil latching 2 coil latching note: ul/csa approved type is standard. dc
s 3 ds_61a07_en_s: 270513d 3) 2 coil latching 2. specifications type nominal coil voltage set voltage (at 20 ? c 68 ? f ) reset voltage (at 20 ? c 68 ? f ) nominal operating current [ ? 10%] (at 20 ? c 68 ? f ) coil resistance [ ? 10%] (at 20 ? c 68 ? f ) nominal operating power (at 20 ? c 68 ? f ) coil inductance max. allowable voltage (at 40 ? c 104 ? f ) set coil reset coil set coil reset coil set coil reset coil set coil reset coil standard 3v dc 70%v or less of nominal voltage (initial) 70%v or less of nominal voltage (initial) 66.7ma 66.7ma 45 ? 45 ? 200mw 200mw approx. 10mh approx. 10mh 5.5v dc 5v dc 38.5ma 38.5ma 130 ? 130 ? 192mw 192mw approx. 31mh approx. 31mh 9.0v dc 6v dc 33.7ma 33.7ma 180 ? 180 ? 200mw 200mw approx. 40mh approx. 40mh 11.0v dc 12v dc 16.7ma 16.7ma 720 ? 720 ? 200mw 200mw approx. 170mh approx. 170mh 22.0v dc 24v dc 8.4ma 8.4ma 2,850 ? 2,850 ? 202mw 202mw approx. 680mh approx. 680mh 44.0v dc 48v dc 7.4ma 7.4ma 6,500 ? 6,500 ? 355mw 355mw approx. 1,250mh approx. 1,250mh 65.0v dc characteristics item specifications contact arrangement 2 form a 2 form b, 3 form a 1 form b, 4 form a initial contact resistance, max. max. 50 m ? (by voltage drop 6 v dc 1a) electrostatic capacitance (initial) approx. 3pf contact material au clad ag alloy (cd free) thermal electromotive force (at nominal coil voltage) (initial) approx. 3 ? v rating nominal switching capacity (resistive load) 4 a 250 v ac, 3 a 30 v dc max. switching power (resistive load) 1,000 va, 90 w max. switching voltage 250 v ac, 48 v dc (30 to 48 v dc at less than 0.5 a) max. switching current 4 a (ac), 3 a (dc) minimum operating power 100 mw (single side stable, latching) nominal operating power 200 mw (single side stable, latching) min. switching capacity (reference value) *1 *1 this value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it i s recommended to check this with the actual load. 100 ? a 100 m v dc electrical characteristics insulation resistance (initial) min. 10,000m ? (at 500v dc) measurement at same location as ?initial breakdown voltage? section. breakdown voltage (initial) between open contacts 750 vrms for 1min. (detection current: 10ma.) between contact sets 1,000 vrms for 1min. (detection current: 10ma.) between contact and coil 1,500 vrms for 1min. (detection current: 10ma.) temperature rise (at 20 ? c 68 ? f ) max. 35 ? c (by resistive method, nominal voltage applied to the coil; contact carrying current: 4a.) operate time [set time] (at 20 ? c 68 ? f ) max. 15 ms [15 ms] (nominal voltage applied to the coil, excluding contact bounce time.) release time [reset time] (at 20 ? c 68 ? f ) max. 10 ms [15 ms] (nominal voltage applied to the coil, excluding contact bounce time.) (without diode) mechanical characteristics shock resistance functional min. 490 m/s 2 (half-wave pulse of sine wave: 11 ms; detection time: 10 ? s.) destructive min. 980 m/s 2 (half-wave pulse of sine wave: 6 ms.) vibration resistance functional 10 to 55 hz at double amplitude of 3 mm (detection time: 10 ? s.) destructive 10 to 55 hz at double amplitude of 4 mm expected life mechanical min. 10 8 (at 50 cps) electrical min. 10 5 (4 a 250 v ac), min. 2 ? 10 5 (3 a 30 v dc) (at 20 times/min.) conditions conditions for operation, transport and storage *2 *2 refer to ?6. usage, storage and transport conditions? in ambient environment section in relay technical information . ambient temperature: ?55 ? c to +65 ? c ?67 ? f to +149 ? f humidity: 5 to 85% r.h. (not freezing and condensing at low temperature) max. operating speed 20 times/min. for maximum load, 50 cps for low-level load (1 ma 1 v dc) unit weight approx. 8 g .28 oz
s 4 ds_61a07_en_s: 270513d reference data 1. maximum switching power 2. life curve 3. contact reliability condition: 1v dc, 1ma detection level 10 ? tested sample: s4-24v, 10pcs 100 1,000 10 0.1 1 10 contact current, a contact voltage, v dc resistive load ac resistive load 1,000 500 100 50 30 10 012345 contact current, a life, 10 4 125 v ac (cos ? = 1.0) 250 v ac (cos ? = 1.0) 99.9 99.0 95.0 0.1 1.0 10.0 0.2 0.5 1.0 2.0 5.0 10.0 30.0 50.0 70.0 no. of operations, 10 7 m = 1.6 : 79 million time : 51 million time 95% reliability limit: 14.6 million times (weibul probability paper) 4.-(1) coil temperature rise tested sample: s4-24v, 4 form a 4.-(2) coil temperature rise tested sample: s4-24v, 4 form a 5. operate and release time (single side stable type) tested sample: s4-24v, 10pcs 4a 0a 100 0.2 0.4 0.6 0.8 1.0 1.2 90 80 70 60 50 40 30 20 10 0 coil operating power, w temperature rise, c 100 123456 90 80 70 60 50 40 30 20 10 0 coil operating power, 0.2 w contact current, a temperature rise, c min. max. min. max. min. max. 80 100 120 140 20 18 16 14 12 10 8 6 4 2 0 coil applied voltage, %v operate/release time, ms release time (with diode) operate time release time 6. influence of adjacent mounting 510 -30 0 +30 510 -30 0 +30 (1) (2) (3) (1) & (3) relays are energized rate of change, % rate of change, % single side stable 2 coil latching drop-out voltage pick-up voltage pick-up voltage inter-relay distance, mm inter-relay distance, mm note: when installing an s-relay near another, and there is no effect from an external magnetic field, be sure to leave at least 10 mm .394 inch between relays in order to achieve the performance listed in the catalog. 7. thermal electromotive force 200 2 4 6 8 10 12 100 minute nr-h nf relay s relay 8. effect from an external magnetic field 0 0 50 100 -30 +30 50 100 -30 +30 rate of change, % rate of change, % g g pick-up voltage pick-up voltage drop-out voltage single side stable 2 coil latching 50 100 -30 -30 0 +30 50 100 0 +30 rate of change, % rate of change, % g g pick-up voltage pick-up voltage drop-out voltage single side stable 2 coil latching
s 5 ds_61a07_en_s: 270513d dimensions (mm inch ) safety standards notes for cautions for use, see relay technical information. ul/c-ul (recognized) csa (certified) file no. contact rating file no. contact rating e43028 4a 250v ac, 1 / 20 hp 125v ac (fla1.5a) 1 / 20 hp 250v ac (fla0.75a), 3a 30v dc lr26550 etc. 4a 250v ac, 1 / 20 hp 125v ac, 1 / 20 hp 250v ac 3a 30v dc download from our web site. cad data cad data cad data external dimensions general tolerance: ? 0.3 ? .012 pc board pattern (copper-side view) tolerance: ? 0.1 ? .004 10 0.5 12 7.62 123456 12 11 10 9 8 7 3 1 4 0.4 1.4 1.0 5.08 0.5 0.5 7.62 28 0.5 12 .118 .394 0.02 .472 .300 .039 .157 .016 .055 .039 .200 .020 .020 .300 1.102 0.02 .472 2.54 2.54 12-1.3 dia. .100 .100 .047-.051 dia. schematic (bottom view) single side stable (deenergized position) 2 coil latching (reset condition) 2a2b 3a1b 4a 123456 12 11 10 9 8 7 - + 123456 12 11 10 9 8 7 - + - + 123456 12 11 10 9 8 7 - + - + 123456 12 11 10 9 8 7 - + 123456 12 11 10 9 8 7 - + - + 123456 12 11 10 9 8 7 - + 1. based on regulations regarding insulation distance, there is a restriction on same-channel load connections between terminals no. 2, 3 and 4, 5, as well as between no. 8, 9 and 10, 11. see the figure below for an example. 2. please note that when this relay (1 form a 1 form b types) operates and releases, contacts a and b may go on at the same time. 4 2 5 3 10 9 4 8 11 5 23 9 8 11 10 ? ? between 2, 3 and 4, 5: different channels, therefore not possible between 10, 11 and 8, 9: different channels, therefore not possible ? ? between 2, 3 and 4, 5: same channels, therefore possible between 10, 11 and 8, 9: same channels, therefore possible no good good
s 6 ds_61a07_en_s: 270513d types specifications notes accessories s relays socket product name part no. s relays socket s-ps maximum continuous current 4 a note: don?t insert or remove relays while in the energized condition. breakdown voltage 1,500 vrms between terminals insulation resistance more than 100 m ? between terminals at 500 v dc mega heat resistance 150 ? 3 ? c ( 302 ? 5.4 ? f ) for 1 hour. s-ps dimensions (unit: mm inch ) external dimensions general tolerance: ? 0.3 ? .012 12.4 0.6 18.3 0.6 15.5 0.6 3.4 0.3 0.4 0.1 1.2 0.3 4.85 0.3 5.08 0.3 32.4 0.6 1.5 0.3 1.5 0.3 7.62 0.3 terminal width: 1.3 terminal thickness: 1.2 .051 .047 1.276 .024 .059 .012 .059 .012 .610 .024 .134 .012 .016 .004 .300 .012 .200 .012 .488 .024 .720 .024 .047 .012 .191 .012 pc board pattern (copper-side view) tolerance: ? 0.1 ? .004 7.6 5.085.085.085.085.08 12-1.6 dia. hole .299 12-.063 dia. hole .200.200.200.200.200 inserting and removing method inserting method: insert the relay as shown in fig. 1 unit the rib of the relay snaps into the clip of the socket. rib fig. 1 removing method: (1) remove the relay straight from the socket holding the shaded portion of the relay as shown in fig. 2. fig. 2 (2) when sockets are mounted in close proximity, use a slotted screw driver as shown in fig. 3. fig. 3
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