engineering data sheet tdh-8050/8051 on operate-fixed period 2 pdt, 10 amp application note: 101 applicable socket: so-1048-8308 features l small size and weight l high-reliability design l hermetically sealed l high transient immunity l reverse polarity protection principle technical characteristics seal:hermetic tested per mil-std-883, method 1014 condition b, c 1x10 -8 atm, cm 3 /s max leakage finish: per mil-t-10727 tin lead plate terminals: tdh 8051 (tin lead plate) tdh 8050 (gold plate) solder-lug plug-in weight 2.5 ounce max. description the tdh-8050/51 time delay relays have been designed with thick film hybrid microelectronics timing circuits and mil-prf-83536 relays, packaged in a hermetically sealed military style enclosure. the tdh-8050/51 series are qualified to mil-prf-83726/28 and designed to withstand severe environmental conditions encountered in military/aerospace applications. these relays are suited for use in power control, communication circuits and many other applications where power switching and high reliability are required over a wide temperature range. featuring leach ? power and control solutions www.esterline.com americas 6900 orangethorpe ave. p.o. box 5032 buena park, ca 90622 . . tel: (01) 714-736-7599 fax: (01) 714-670-1145 europe 2 rue goethe 57430 sarralbe france . . tel: (33) 3 87 97 31 01 fax: (33) 3 87 97 96 86 asia units 602-603 6/f lakeside 1 no.8 science park west avenue phase two, hong kong science park pak shek kok, tai po, n.t. hong kong tel: (852) 2 191 3830 fax: (852) 2 389 5803 data sheets are for initial product selection and comparison. contact esterline power systems prior to choosing a component. date of issue: 6/10 - 60 - page 1 of 3
electrical specification tdh-8050/8051 input (control) parameters timing: a. operation, time delay on b. method c. range d. accuracy operate fixed period 0.1 to 600 seconds [6] 10% [1] recycle time 50 ms, max [5] operations: (x1-x2) a. input & control voltage b. operating current 20-30 vdc 150 ma, max @ +25 c transients: a. positive, mil-std-704a, figure9, limit 1 b. spike, mil-std-704a, 0-10 s c. self-generated d. susceptibility +80 volts max 600 volts max 50 volts max +80; -600 volts max electromagnetic interference per mil-std-461a class 1d [3] power loss 500 microseconds [2] output (load) parameters contact form contact rating: a. resistive b. inductive c. motor d. lamp 2 pdt 10 amperes 8 amperes 4 amperes 2 amperes dielectric strength: a. @ sea level, 60 hz b. @ 80,000 ft., 60 hz 1000 vrms [4] 350 vrms insulation resistance @ 500 vdc 1000 m w [4] general characteristics ambient temperatures range: a. operating b. non-operating -55 to +125 c -65 to +125 c vibration: a. sinusoidal, 10-3000 hz 30 g b. random: 50-2000 hz, mil-std-810 0.4 g 2 /hz shock @ 6 1 ms, 1/2 sine, 3 axis 100 g acceleration, in any axis 15 g life at rated resistive load; minimum 100,000 operations numbering system plug-in terminal solder hook terminal tdh-8050 - 1001 p tdh-8051 - 1001 s | | | | | | 1 3 4 1 3 4 m83726/28 - 1001 p m83726/28 - 1001 s | | | | | | | | 1 2 3 4 1 2 3 4 p = plug-in terminal. s = solder hook terminal. 1. model number or basic "mil-prf" series number. 2. military "slash" number. 3. timing range, fixed: 100 milliseconds to 600 seconds. (see note 6). 4. mounting style and quality level (see note 7). date of issue: 6/10 - 61 - page 2 of 3
mechanical specifications tdh-8050/8051 notes [1] the accuracy specification applies for any combination of operating temperature and voltage. for units with a timing range less than 1 second, add 10 milliseconds to the 10% tolerance. [2] transient and power loss specification are based on a maximum duty cycle of 1/50. [3] emi test limits will not be exceeded during the timing interval or when continuously energized under steady state conditions, per paragraph 3.23, mil-prf-83726b. [4] terminals x1 and x2 must be connected together during the test. dielectric withstanding voltage and insulation resistance are measured at sea level between all mutually insulated terminals and between all terminals and case. [5] recycle time is defined as the maximum time power must be removed from terminal x1 to assure that a new cycle can be completed within the specified timing tolerance. [6] a four digit number defines the time delay in seconds (or milliseconds). the first three digits are significant figures, used to define the specific time delay. the fourth digit represents the number of zeros to follow the first three digits. examples: - 1001 = 1 second (1,000 milliseconds) - 2502 = 25 seconds (25,000 milliseconds) - 5000 = 0.5 seconds (500 milliseconds) [7] quality level as specified in mil-r-83726b, paragraph 3.1.1, 3.1.2 and 3.1.3. d a t e o f i s s u e : 6 /10 - 6 2 - p a g e 3 o f 3 . 2 1 . 2 0 0 t y p i c a l . 2 1 . 2 0 0 t y p i c a l c o n t r a s t i n g b e a d 3 0 1 . 0 1 0 m a x . 0 6 2 . 0 0 1 p i n s . 0 8 0 i d . 3 0 h o o k p i n s e e d e t a i l v i e w a a n d b c a g e n o . a n d d a t a c o d e ( f a r s i d e ) n a m e p l a t e ( n e a r s i d e ) . 0 4 . 1 5 6 . 0 0 5 c o n t r a s t i n g b e a d . 2 0 0 t y p i c a l . 2 0 0 t y p i c a l . 2 1 . 2 1 s i l i c o n r u b b e r g a s k e t . 0 6 2 . 0 0 1 p i n s . 0 5 . 2 7 p l u g - i n . 6 2 . 2 0 . 1 5 . 5 1 . 9 3 1 . 0 2 5 m a x 1 . 0 2 5 m a x 1 . 3 9 6 1 . 4 4 6 1 . 7 1 8 m a x e v a c u a t i o n h o l e f u l l r a d i u s a l l d i m e n s i o n s s h o w n a r e i n i n c h e s . d e t a i l v i e w b d e t a i l v i e w a a b c d 1 + x 1 2 3 - x 2 t d c o n t r a s t i n g b e a d f i x e d t i m e d e l a y 2 0 - 3 0 v d c 0 v d c x 1 - x 2 i n p u t v o l t a g e d e - e n e r g i z e d t i m e d e l a y r e l a y o u t p u t t i m e d e l a y o n o p e r a t e e n e r g i z e d
application notes n101 derating of contacts for dc voltages above nominal rating to establish a standard for the derating of relay contacts is, at best, a subjective practice. limitations are governed by the type of relay, contact gap, maximum voltage capabilities of the relay contact system, and the contact material. the most common method is to derate the contacts by use of the power formula, using the known current and voltage. this method is valid only for resistive loads, and is an approximation only; keeping in mind the limitations mentioned above. power = ie (current x voltage) i 2 e 2 = 2/3 i 1 e 1 example: a designer is working with a 55 volt dc system and has a relay rated at 10 amps resistive at 28 volts dc. what is the maximum current that can be switched at 55 vdc. i 1 = 10 amperes e 1 = 28 vdc e 2 = 55 vdc i 2 = ? (current ratings at 55 vdc resistive) i 2 e 2 = 2 i 1 e 1 /3 i 2 = 2 i 1 e 1 /e 2 3 = 2 (10 x 28)/55 x 3 = 560/165 i 2 = 3.4 amperes at 55vdc in addition, the user should always be concerned about the following: 1. derating contacts that are rated for less than 10 amperes at nominal voltage. 2. derating contacts for use in system voltages above 130 volts dc date of issue: 6/00 - 14 - page 1 of 1
engineering data sheet so-1048-8308/8518 relay socket 12 amp basic socket series designation for: series k series tdh-8070, tdh-8080 tdh-8050, tdh-8060, vs400 meets the requirements of: mil-dtl-12883 general characteristics 1. supplied with mounting hardware and no. 16 contacts, no. 16 crimp (so-1048-8308); no. 16 contacts, no. 20 crimp (so-1048-8518). 2. standard tolerances .xx .01; xxx .005 3. weight .115 lb. max 4. temperature range -70 c to +125 c featuring leach ? power and control solutions www.esterline.com americas 6900 orangethorpe ave. p.o. box 5032 buena park, ca 90622 . . tel: (01) 714-736-7599 fax: (01) 714-670-1145 europe 2 rue goethe 57430 sarralbe france . . tel: (33) 3 87 97 31 01 fax: (33) 3 87 97 96 86 asia units 602-603 6/f lakeside 1 no.8 science park west avenue phase two, hong kong science park pak shek kok, tai po, n.t. hong kong tel: (852) 2 191 3830 fax: (852) 2 389 5803 data sheets are for initial product selection and comparison. contact esterline power systems prior to choosing a component. date of issue: 8/09 - 9 - page 1 of 1
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