?2003 teledyne relays specifications are subject to change without notice 420 422 page 1 www.teledynerelays.com 420 422/1203/q1 established reliability series 420/422 magnetic-latching established reliability to-5 relays dpdt description the magnetic-latching to-5 relay, originally conceived and developed by teledyne, has become one of the industry standards for low-level switching from dry circuit to 1 ampere. designed for high-density pc board mounting, its small size and low coil power dissipation make the 420 and 422 relays some of the most versatile ultraminiature relays available. the following unique construction features and manufacturing techniques provide excellent resistance to environmental extremes and overall high reliability: ? all welded construction. ? unique uni-frame design providing high magnetic efficiency and mechanical rigidity. ? high force/mass ratios for resistance to shock and vibration. ? advanced cleaning techniques provide maximum assurance of internal cleanliness. ? precious metal alloy contacts material with gold plating assures excellent high current and dry circuit switching capabilities. the series 420d/422d and 420dd/422dd utilize discrete diodes for coil suppression and polarity reversal protection. by virtue of its inherently low intercontact capacitance and contact circuit losses, these to-5 relays have proven to be excellent ultraminiature rf switches for frequency ranges well into the uhf spectrum. a typical rf application for these to-5 relays is in handheld radio receivers, wherein the combined features of good rf performance, small size, very low coil power dissipation and high reliability make it a preferred method of transmit-receive switching (see figure 1). the series 420/422 magnetic-latching relays are ideally suited for applications where power dissipation must be minimized. the relays can be operated with a short duration pulse. after the contacts have transferred, no external holding power is required. the magnetic latching feature of the series 420/422 relays provide a memory capability, since the relays will not reset upon removal of coil power. principle of operation energizing coil b produces a magnetic field opposing the holding flux of the permanent magnet in circuit b. as this net holding force decreases, the attractive force in the air gap of circuit a, which also results from the flux of the permanent magnet, becomes great enough to break the armature free of core b, and snap it into a closed position against core a. the armature then remains in this position upon removal of power from coil b, but will snap back into position b upon energizing coil a. since operation depends upon cancellation of a magnetic field, it is necessary to apply the correct polarity to the relay coils as indicated on the relay schematic. when latching relays are installed in equipment, the latch and reset coils should not be pulsed simultaneously. coils should not be pulsed with less than rated coil voltage and the pulse width should be a minimum of three times the specified operate time of the relay. if these conditions are not followed, it is possible for the relay to be in the magnetic neutral position. magnetic circuit a soft iron frame + coil a soft iron coil a - air gap stationary contact permanent magnet magnetic circuit b coil b soft iron coil b soft iron armature + moving contact - series designation relay type 420/422 dpdt basic relay 420d/422d dpdt relay with internal diode for coil transient suppression 420dd/422dd dpdt relay with internal diodes for coil transient suppression and polarity reversal protection environmental and physical specifications temperature (ambient) C65c to +125c vibration (general note 1) 30 gs to 3000 hz shock (general note 1) 100 gs, 6 msec, half-sine acceleration 50 gs enclosure hermetically sealed weight 0.10 oz. (2.84g) max.
420 422 page 2 specifications are subject to change without notice ?2003 teledyne relays www.teledynerelays.com 420 422/1203/q1 established reliability performance curves (note 2) series 420/422 general electrical specifications (C65c to +125c unless otherwise noted) (notes 2 & 3) detailed electrical specifications (C65c to +125c unless otherwise noted) (note 3) contact arrangement 2 form c (dpdt) rated duty continuous contact resistance 0.125 ohm max. before life; 0.225 ohm max. after life at 0.5a/28vdc (measured 1/8" from header) contact load ratings (dc) (see fig. 2 for other dc resistive voltage/current ratings) resistive: 1 amp/28vdc inductive: 200 ma/28vdc (320 mh) lamp: 100 ma/28vdc low level: 10 to 50 a/10 to 50mv contact load ratings (ac) resistive: 250 ma/115vac, 60 and 400 hz (case not grounded) 100 ma/115vac, 60 and 400 hz (case grounded) contact life ratings 10,000,000 cycles (typical) at low level 1,000,000 cycles (typical) at 0.5a/28vdc resistive 100,000 cycles min. at all other loads specified above contact overload rating 2a/28vdc resistive (100 cycles min.) contact carry rating contact factory coil operating power 290 milliwatts typical at nominal rated voltage @ 25c operate time 420/422, 420d/422d: 1.5 msec max. at nominal rated coil voltage 420dd/422dd: 2.0 msec max. at nominal rated coil voltage contact bounce 2.0 msec max. minimum operate pulse 4.5 msec width @ rated voltage intercontact capacitance 0.4 pf typical insulation resistance 10,000 megohms min. between mutually isolated terminals dielectric strength atmospheric pressure: 500 vrms/60hz 70,000 ft.: 125 vrms/60hz negative coil transient (vdc) 420d/422d, 420dd/422dd 1.0 max diode p.i.v. (vdc) 420d/422d, 420dd/422dd 100 min. base part numbers (see note 8 for full p/n example) 420/422-5 420d/422d-5 420dd/422dd-5 420/422-6 420d/422d-6 420dd/422dd-6 420/422-9 420d/422d-9 420dd/422dd-9 420/422-12 420d/422d-12 420dd/422dd-12 420/422-18 420d/422d-18 420dd/422dd-18 420/422-26 420d/422d-26 420dd/422dd-26 coil voltage (vdc) nom. 5.0 6.0 9.0 12.0 18.0 26.5 max. 6.0 8.0 12.0 16.0 24.0 32.0 coil resistance (ohms 10% @25c) 420/422, 420d/420d 61 120 280 500 1130 2000 420dd/422dd (note 4) 48 97 280 500 1130 2000 coil current (madc @25c) (420dd/422dd series only) min. 75.8 46.9 26.0 20.0 13.7 11.6 max. 104.2 63.0 33.7 25.5 17.2 14.4 set & reset voltage (vdc, max.) 420/422, 420d/422d 3.5 4.5 6.8 9.0 13.5 18.0 420dd/422dd 4.5 5.5 7.8 10.0 14.5 19.0 0 .1 .2 .3 .4 10 20 30 40 50 60 70 .01 0.5 .1 .5 1.0 frequency (ghz) figure 1 typical rf performance insertion loss isolation across contacts isolation across poles 1.92 1.22 1.07 1.02 1.01 1.00 1.00 vswr 300 250 200 150 100 50 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 load current (amps dc) figure 2 typical dc contact rating (resistive) load voltage (vdc) db return loss (vswr)
?2003 teledyne relays specifications are subject to change without notice 420 422 page 3 www.teledynerelays.com 420 422/1203/q1 established reliability .370 (9.40) dia. max. .335 (8.51) dia. max. .280 (7.11) max. +.002 (.05) .017 (.43) C.001 (.03) dia. wire lead: .75 (19.05) min. pin: .187 (4.75) .010 (.25) (see note 6) case detail 10 1 2 3 4 5 6 7 8 9 terminal locations and pin numering (ref only) (viewed from terminals) dimensions are shown in inches (millimeters) .035 (.89) .010 (0.25) .031 (.79) .003 (0.08) .200 (5.08) .010 (.25) dia. 36 3 typ. .035 (.89) .010 (0.25) .031 (.79) .003 (0.08) .200 (5.08) .010 (.25) dia. 36 3 typ. 420 422 outline dimensions general notes 1. relay contacts will exhibit no chatter in excess of 10 sec or transfer in excess of 1 sec. 2. typical characteristics are based on available data and are best estimates. no on-going verification tests are performed. 3. unless otherwise specified, parameters are initial values. 4. for reference only. coil resistance not directly measurable at relay terminals due to internal series diode. 420dd and 422dd only. 5. unless otherwise specified, relays will be supplied with either gold-plated or solder-coated leads. 6. the slash and characters appearing after the slash are not marked on the relay. 7. screened hi-rel versions available. contact factory. 8. schematics are viewed from terminals contacts shown in position resulting when coil a last energized coil b coil a 420 coil b coil a 420d coil b coil a 420dd coil b coil a 422 coil b coil a 422d coil b coil a 422dd schematic diagrams teledyne part numbering system for t 2 r ? established reliability relay er 422 x m - 26 a / s q esta blished reliability designator pad option (see appendix) relay series optional ground pin (see appendix) q= solder coated leads g= gold plated leads (notes 5 and 6) s= 0.187" leads (note 6) coil voltage screening and reliability level teledyne part numbering system for military qualified (jan) relays j 422 x m - 26 p l military (jan) designator pad option (see appendix) relay series optional ground pin (see appendix) terminal variant p = 0.187" coil voltage screening and reliability level series 420/422
pad designation and bottom view dimensions height for use with the following: dim. h max. m4 pad for to-5 er411t er412, er412d, er412dd .295 (7.49) 712, 712d, 712tn, rf300, rf310, rf320 .300 (7.62) er420, er422d, er420dd, 421, er421d, er421dd, er422, er422d, er422dd, 722, 722d, rf341 .305 (7.75) er431t, er432t, er432, er432d, er432dd .400 (10.16) 732, 732d, 732tn, rf303, rf313, rf323 .410 (10.41) rf312 .350 (8.89) m4 pad for to-5 er411, er411d, er411dd .295 (7.49) er431, er431d, er431dd .400 (10.16) rf311 .300 (7.62) rf331 .410 (10.41) m4 pad for centigrid ? 172, 172d .305 (7.75) er114, er114d, er114dd, j114, j114d, j114dd .300 (7.62) er134, er134d, er134dd, j134, j134d, j134dd .400 (10.16) rf100 .315 (8.00) rf103 .420 (10.67) m9 pad for centigrid ? 122c, a152 .320 (8.13) er116c, j116c .300 (7.62) er136c, j136c .400 (10.16) rf180 .325 (8.25) a150 .305 (7.75) notes: 1. spacer pad material: polyester lm. 2. to specify an m4 or m9 spacer pad, refer to the mounting variants portion of the part numbering example in the applicable datasheet. 3. dimensions are in inches (mm). 4. unless otherwise speci ed, tolerance is .010 (.25). 5. add 10 m to the contact resistance show in the datasheet. 6. add 0.01 oz. (0.25 g) to the weight of the relay assembly shown in the datasheet. ?.150 [3.81] (ref) dim h max dim h max dim h max .156 [3.96] (ref) .256 [6.5] (ref) dim h max appendix a: spacer pads ? 2008 teledyne relays specifications subject to change without notice
pad designation and bottom view dimensions height for use with the following: dim. h max. m pad 5/ 6/ er411t, j411t, er412, er412d er412dd, j412, j412d, j412dd er412t, j412t .388 (9.86) 712, 712d, 712tn .393 (9.99) er431t, j431t, er432, er432d er432dd, j432, j432d, j432dd er432t, j432t .493 (12.52) 732, 732d, 732tn .503 (12.78) er420, j420, er420d, j420d er420dd, j420dd, er421, j421 er421d, j421d, er421dd j422d, er422dd, j422dd, 722 .398 (10.11) m2 pad 7/ 8/ er411t er412, er412d, er412dd j412, j412d, j412dd .441 (11.20) 712, 712d .451 (11.46) er421, er421d, er421dd 722, 732d .451 (11.46) er431t er432, er432d, er432dd .546 (13.87) 732, 732d .556 (14.12) m3 pad 5/ 6/ 9/ er411, er411d, er411dd er411tx er412x, er412dx, er412ddx er412tx .388 (9.86) 712x, 712dx, 712tnx .393 (9.99) er420x, er420dx, er420ddx er421x, er421dx, er421ddx er422x, er422dx er422ddx, 722x, 722ddx .398 (10.11) er431, er431d, er431dd er431tx er432x, er432dx, er432ddx er432tx .493 (12.52) 732x, 732dx, 732tnx .503 (12.78) notes: 1. spreader pad material: diallyl phthalate. 2. to specify an m, m2 or m3 spreader pad, refer to the mounting variants portion of the part number example in the applicable datasheet. 3. dimensions are in inches (mm). 4. unless otherwise speci ed, tolerance is .010 (0.25). 5/. add 25 m to the contact resistance shown in the datasheet. 6/. add .01 oz. (0.25 g) to the weight of the relay assembly shown in the datasheet. 7/. add 50 m to the contact resistance shown in the datasheet. 8/. add 0.025 oz (0.71 g) to the weight of the relay assembly shown in the datasheet. 9/. m3 pad to be used only when the relay has a center pin (e.g. er411m3-12a, 722xm3-26.) .370 [9.4] max sq .150 [3.81] .100 [2.54] .200 [5.08] .300 [7.62] .100 [2.54] dim h max .370 [9.4] min .014 [0.36] (ref) .390 [9.91] sq .300 [7.62] .100 [2.54] .300 [7.62] .100 [2.54] .150 [3.81] .150 [3.81] .130 [3.3] dim h max .370 [9.4] max sq .150 [3.81] .100 [2.54] .200 [5.08] .300 [7.62] .100 [2.54] dim h max .370 [9.4] min .014 [0.36] (ref) appendix a: spreader pads (800) 284-7007 ? www.teledynerelays.com +44 (0) 1236 453124 ? www.teledyne-europe.com ? 2008 teledyne relays
.100 [2.54] .100 [2.54] .100 [2.54] "y" position "z" position .100 [2.54] .100 [2.54] .100 [2.54] "w" position "u" position (er116c and er136c only) "x" position "z" position "y" position .050 [1.27] 36 3 ?.200 [?5.08] "z" position "y" position "x" position 45 3 "z" position "y" position ?.200 [?5.08] centigrid? relays: rf100, rf103, er114, er134, 172 centigrid? relays: rf180, er116c, 122c, er136c to-5 relays: er411t, er412, er412t, er420, er421, er422, er431t, er432, er432t, 712, 712tn, 400h, 400k, 400v, rf300, rf303, rf341, rf312, rf310, rf313, rf320, rf323 to-5 relays: er411, er431, rf311, rf331 notes 1. terminal views shown 2. dimensions are in inches (mm) 3. tolerances: .010 (.25) unless otherwise speci ed 4. ground pin positions are within .015 (0.38) dia. of true position 5. ground pin head dia., 0.035 (0.89) ref: height 0.010 (0.25) ref. 6. lead dia. 0.017 (0.43) nom. indicates ground pin position indicates glass insulated lead position indicates ground pin or lead position depending on relay type appendix a: ground pin positions ? 2008 teledyne relays specifications subject to change without notice
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