engineering data sheet flsh402 programmable time delay 2pst (sso) time delay relay (on operate, on release or repeat cycle timer) fixed or adjustable time delay contact arrangement 2 solid state outputs (dpst/no) power supply direct current principle technical characteristics contacts rated at 0.25 mamps / 28 vdc weight < 10 grams dimensions of case 23mm x 23mm x 6mm max tin plated hermetically sealed metal can. contact electrical characteristics load (output) current 250 ma inductive at + 25 c numbering system flsh402 - 1 basic series designation___________________| | 1-accuracy (1,2,3,4)_______________________________| www.leachintl.com north america 6900 orangethorpe ave. p.o. box 5032 buena park, ca 90622 usa tel: (01) 714-736-7599 fax: (01) 714-670-1145 europe, sa 2 rue goethe 57430 sarralbe france tel: (33) 3 87 97 98 97 fax: (33) 3 87 97 84 04 asia-pacific ltd. 20/f shing hing commercial bldg. 21-27 wing kut street central, hong kong tel: (852) 2 191 2886 fax: (852) 2 389 5803 data sheets are for initial product selection and comparison. contact leach international prior to choosing a component. date of issue: 3/06 - 79 - page 1 of 4
mounting styles flsh402 dimensions in inch tolerances unless otherwise specified 0.20 mm schematic diagram/terminal layout d a t e o f i s s u e : 3 / 0 6 - 8 0 - p a g e 2 o f 4 2 2 . 6 5 2 2 . 8 5 6 x 2 . 5 4 1 7 . 7 8 ? 0 . 4 7 0 . 0 3 6 . 3 5 6 w i t h o u t c o n t r o l v o l t a g e a 3 y 1 c o n t r o l v o l t a g e + + + l o a d l o a d f u n c t i o n s e l e c t i o n t i m i n g r a n g e s e l e c t i o n 0 v 0 v p o w e r s u p p l y d 3 d 2 c 2 b 2 x 2 a 2 0 v w i t h c o n t r o l v o l t a g e c 1 d 1 a 1 b 1 b 3 c 3 r x +
types of operation flsh402 timing range adjustable range 1: 0.1 to 2.5 seconds rx = 356 * (t - to) range 2: 0.4 to 10 seconds rx = 91.20 * (t - to) range 3: 3.2 to 80 seconds rx = 11.38 * (t - to) range 4: 25 to 625 seconds rx = 1.42 * (t - to) timing range selection: connect a1 with y2 b1 with y2 nil a1 & b1 with y2 where rx in kohms t: desired time in seconds, to: time measured with rx = 0. example to determine rx value for a t time of 10 seconds: choose range 3; measure time with rx = 0 (for example : to = 3.1 s); substract to from 10 seconds (10s - 3.1s = 6.9s); calculate rx = 11.38 kohms/s (range 3) x 6.9s theoretical resistance: rx = 78.5 kohms date of issue: 6/01 - 81 - page 3 of 4
general characteristics flsh402 temperature range -55 c to +125 c operating voltage 18 to 32 vdc (air norm 2021 e) recycle time less than or equal to 20 ms dielectric strength between all pins connected together and can 750 v / 50 hz insulation resistance at 100 vdc (same condition as above) greater than or equal to 100 m w sinusoidal vibration 30g / 70 to 3000 hz shock 50g / 11 ms control voltage current 5 mamps max at 28 vdc accuracy adjustable period accuracy resistor rx to choose code 1 code 2 code 3 10% 5% 3% 5% 100 ppm / c 2% 100 ppm / c 1% 50 ppm / c code 4 1% on request notes 1. isolation spacer pads for pcb mounting available on request. date of issue: 3/06 - 82 - page 4 of 4
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