mill-max has developed high density, .050 pitch through-hole and surface mount spring-loaded connectors (slc) available in single and double-row strip packaging. each precision-machined spring pin component is plated 20u hard gold and assembled in a high temperature thermoplastic insulator suitable for wave and reflow soldering processes. every mill- max slc is rohs compliant. series 854-22-0xx-10-001101 and 855-22-0xx-10-001101 through-hole insulators feature mold- ed standoffs to improve soldering and cleaning beneath the connector. tail diameters of .016 require minimal diameter plated holes for connector mounting, maximizing signal routing between pins. series 854-22-0xx-30-001101 and 855-22-0xx-30-001101 surface mount spring connectors are low profile, standing less than .230 tall when engaged mid-stroke (.0275.) each smt spring pin features a base geometry of .030 round by .010 tall to maximize soldering surface area and promote solder joint fillet. max imum solutions r maximum interconnect solutions mill-max mfg. corp. ? 190 pine hollow road, oyster bay, ny 11771-0300 516-922-6000 ? fax: 516-922-9253 ? www.mill -max.com (5/10 -- 606) mill-max series 854 single row and 855 double row .050 pitch surface mount and through-hole spring-loaded connectors and mating target connectors
applications mill-max spring-loaded contacts are button type contacts interconnecting two parallel conductive surfaces inside an electronic device or instrument. the stroking movement of the spring pin piston accommodates uneven, non-parallel conditions due to mechanical tolerances in the assembly. mill-max slcs are often used as the internal battery connection in portable instruments, or as the external battery connection for charging these instruments (docking stations.) another popular application is stacking printed circuit boards in an assembly. spring pin connectors are excellent for mezzanine-tiered board modules that require blind mate assembly. mill-max also offers through-hole and surface mount .050 pitch target connectors to provide a gold-plated, flat and conductive mating surface. mill-max target connector pins are precision- machined and assembled into thermoplastic insulators. mill-max target connectors are rohs compliant and suitable for reflow soldering. mill-max spring pin connector and its mating target connector p854-22-020-10-001101 sip (1x20) slc through-hole 2 to 20 p856-10-020-10-051000 sip (1x20) target through-hole 2 to 20 p854-22-020-30-001101 sip (1x20) slc surface mount 2 to 20 p856-10-020-30-051000 sip (1x20) target surface mount 2 to 20 p855-22-040-10-001101 strip (2x20) slc through-hole 4 to 40 p857-10-040-10-051000 strip (2x20) target through-hole 4 to 40 p855-22-040-30-001101 strip (2x20) slc surface mount 4 to 40 p857-10-040-30-051000 strip (2x20) target surface mount 4 to 40 mechanical for spring pins: spring force @ initial height: 25 grams spring force @ mid stroke (.0275): 60 grams for best mechanical result and longest product life, please design to spring mid-stroke parameter of .0275. for more information on these parts, please visit: www.mill-max.com/pr606.
.055 .055 stroke stroke .050 .050 (typ) (typ) .020 .020 .186 .186 .019 dia. .019 dia. .016 dia. .016 dia. .350 .350 .149 .149 .061 .061 .103 .103 dia. dia. .045 .045 .041 .041 .055 .055 stroke stroke .050 .050 (typ) (typ) .020 .020 .186 .186 .019 dia. .019 dia. .016 dia. .016 dia. .350 .350 .149 .149 .061 .061 .103 .103 dia. dia. .045 .045 .041 .041 technical specifications materials: contact piston & base: machined copper alloy plated 20? gold over 100? nickel. spring: beryllium copper plated 10? gold insulator: high temp. thermoplastic rated ul94 v-0 mechanical: spring force @ initial height (a): 25 grams spring force @ mid stroke (b/2): 60 grams durability: 1,000,000 cycles min. electrical: voltage rating: 100vrms/150vdc current rating: 2a (continous), 3a (peak) per contact contact resistance: 20m max. insulation resistance: 10,000m min. dielectric strength: 700vrms min. capacitance: 1pf max. .050 .0825 .0825 (number of pins (number of pins x .050") + .115" x .050") + .115" (typ) (typ) (typ) (typ) .087 .0435 .0435 .050 .050 .0825 .0825 (typ) (typ) (typ) (typ) (number of pins (number of pins x .050"/2) + .115" x .050"/2) + .115" .050 .050 .118 .118 single row series 854 spring-loaded connectors .050 grid through hole mount single and double row strips www.mill-max.com 516-922-6000 12.1 series 854...10-001101 855...10-001101 double row series 855 rohs 2002/95/ec ? modular contacts for use on .050? grid, supplied in single and double row contact strips. ? precision-machined piston / base and gold plated components assure a 1,000,000 min. cycle life. ? pistons have a .0275? mid stroke & .055? max stroke. ? low resistance, high current contacts are rated at 2 amps continuous, 3 amps peak. ? high temperature thermoplastic insulators are suit- able for surface mount processes. ? 854 & 855 series contact strips are designed for manual placement into ? .023.003? plated-thru- holes in the circuit board. ordering information 854-22-0_ _-10-001101 specify # of pins 02-20 series 854 single row through hole mount for electrical, mechanical & enviromental data, see pg. 4.1 for rohs compliance select ? plating code. 855-22-0_ _-10-001101 specify # of pins 04-40 series 855 double row through hole mount
.019 dia. .019 dia. (typ) (typ) .050 .050 .030 dia. .030 dia. .024 .024 .161 .161 .185 .185 .252 .252 stroke stroke .055 .055 .019 dia. .019 dia. (typ) (typ) .050 .050 .030 dia. .030 dia. .036 .036 .149 .149 .185 .185 .252 .252 stroke stroke .055 .055 technical specifications materials: contact piston & base: machined copper alloy plated 20? gold over 100? nickel. spring: beryllium copper plated 10? gold insulator: high temp. thermoplastic rated ul94 v-0 mechanical: spring force @ initial height (a): 25 grams spring force @ mid stroke (b/2): 60 grams durability: 1,000,000 cycles min. electrical: voltage rating: 100vrms/150vdc current rating: 2a (continous), 3a (peak) per contact contact resistance: 20m max. insulation resistance: 10,000m min. dielectric strength: 700vrms min. capacitance: 1pf max. .050 .050 .0325 .0325 (number of pins (number of pins x .050") + .015" x .050") + .015" (typ) (typ) (typ) (typ) .087 .087 .0435 .0435 .050 .050 .0325 .0325 (typ) (typ) (typ) (typ) (number of pins (number of pins x .050"/2) + .015" x .050"/2) + .015" .050 .050 .120 .120 single row series 854 spring-loaded connectors .050 grid surface mount, high density single and double row strips www.mill-max.com 516-922-6000 12.2 series 854...30-001101 855...30-001101 double row series 855 rohs 2002/95/ec ? modular contacts for use on .050? grid, supplied in single and double row contact strips. ? precision-machined piston / base and gold plated components assure a 1,000,000 min. cycle life. ? pistons have a .0275? mid stroke & .055? max stroke. ? low resistance, high current contacts are rated at 2 amps continuous, 3 amps peak. ? high temperature thermoplastic insulators are suit- able for surface mount processes. ? 854 & 855 series contact strips are designed for manual placement onto .040? ? solder pads. ordering information 854-22-0_ _-30-001101 specify # of pins 02-20 series 854 single row surface mount for electrical, mechanical & enviromental data, see pg. 4.1 for rohs compliance select ? plating code. 855-22-0_ _-30-001101 specify # of pins 04-40 series 855 double row surface mount
spring-loaded connectors .050 grid target connectors for spring-loaded assemblies single and double row www.mill-max.com 516-922-6000 series 856, 857 .050 .050 (number of pins (number of pins x .050") + .015" x .050") + .015" (typ) (typ) .087 .087 .0435 .0435 pin plating 10 ?au plating code = 10 14.1 ? series 856, 857 single and double row strips may be cut to any length. ? spring target connectors present a large flat surface for making tangent connections to our standard .019? dia spring pin plungers. the target connectors provide an excellent gold plated conductive path back to the board mounted spring pin connector. ? target connectors use mm #1933 and #1935 pins. see page 180 for details. ? insulators are high temp. thermoplastic. .087 .087 .050 .050 .087 .087 .197 .197 .016 dia. .016 dia. .010 .010 .100 .100 x .050" + .015" x .050" + .015" number of pins number of pins .042 dia. .042 dia. fig. 1 rohs 2002/95/ec for electrical, mechanical & enviromental data, see pg. 4 ordering information fig. 1 856-10-0_ _-10-051000 specify # of pins 01-20 series 856...051 standard solder tails fig. 2 856-10-0_ _-30-051000 specify # of pins 02-20 series 856...051 surface mount fig. 3 857-10-0_ _-10-051000 specify # of pins 04-40 series 857...051 standard solder tails fig. 4 857-10-0_ _-30-051000 specify # of pins 04-40 series 857...051 surface mount .050 .050 (typ) (typ) (number of pins / 2 (number of pins / 2 x .050") + .015" x .050") + .015" .050 .050 .120 .120 .087 .087 x .050" + .015" x .050" + .015" number of pins number of pins .050 .050 .087 .087 .026 dia. .026 dia. .010 .010 .097 .097 .042 dia. .042 dia. fig. 2 coplanarity .005?. for pin counts >20 positions consult technical support. .120 .120 .050 .050 .075 .075 .016 dia. .016 dia. .010 .010 .102 .102 .095 .095 x .050" + .015" x .050" + .015" number of pins / 2 number of pins / 2 .042 dia. .042 dia. fig. 3 .120 .120 .050 .050 .075 .075 .010 .010 .097 .097 x .050" + .015" x .050" + .015" number of pins / 2 number of pins / 2 .042 dia. .042 dia. .026 dia. .026 dia. fig. 4 coplanarity .005?. for pin counts >40 positions consult technical support.
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