Miniature circular connectors Standards 0 Recognized E09 Certified LR0 Shielding effect Shielding effect(db) 0 0 0 Braided wires soldered to the metal shell 0 0 0 0 0 90 MD connector(with ground clip) 00 0 0 00 00 00 Frequency(MHz) The shielding effect differs depending on the wire specifications. The extremely compact MD miniature circular connector has an outside diameter roughly half that of conventional circular DIN connectors. The connector's contact exclusively designed by JST dramatically reduces assembly time while improving contact reliability. The MD connector's shielding is superb. All you need to do is crimp the connector ground clip over the cable's braided shielding wire. Simple and reliable, JST's MD connector is well suited for the production of high-density office automation equipments as well as audio and video products. * Contact JST if Lead-Free product is required. * Refer to "General Instruction and Notice when using Terminals and Connectors" at the end of this catalog. * Contact JST for details.
PLUG Straight type plug Side entry type plug Contact JST's exclusive one-piece contact is formed and cold worked by stamping presses to ensure the highest reliability. Contact Housing B Metal Shell Three shell types (standard, A and B) are available. Metal Shell One piece including ground clip Housing A Housing A is designed to keep the contacts firmly in place while protecting them from damage. Ground clip If used, the ground clip is crimped to cover the cable braid. Housing A Housing B Solder tail Assembled product Molded product Assembled product Molded product Features Specifications Crimp contact with integral construction for improved reliability JST's exclusive one-piece construction of the pin and crimping section not only enhances the connection's reliability but also substantially improves productivity and efficiency by eliminating the need for soldering. Little force is required to insert the contact into the housing. Even a wire as thin as AWG #0 can be inserted easily by hand. Easy assembly without using special tools Other than crimping tools, no special tools are required to assemble the connector. Simply install the contacts, housing, ground clip and metal shell in that order. This makes it possible to greatly increase assembly efficiency, resulting in significant reductions in total cost. Simple braid-to-connector assembly and effective EMI protection Because the ground clip is crimped to the cable braid, no soldering is required. While securely holding the cable, the ground clip also ensures the integrity of the grounded circuit. This is a critical factor in reducing noise. The shielding effect of this method is approximately 0dB greater than that obtained by the conventional method of bundling and soldering cable braid to the metal shell. Materials Part name Contact Housing A, B Metal shell Ground clip Characteristics Current rating Voltage rating Temperature range Contact resistance Insulation resistance Withstanding voltage Applicable wire Material and Finish Phosphor bronze, nickel-undercoated Mating section: gold-plated Crimping section: tin-plated Phosphor bronze, copper-undercoated, tin/lead-plated Phosphor bronze, nickel-undercoated silver-plated PBT, UL9V-0, black Mild steel, nickel-plated Brass, nickel-plated.0a, AC, DC (using AWG #) 0V, AC, DC - C to + C (including temperature rise in applying electrical current) Initial value: 00mΩ max. After environmental testing: 00mΩ max. 0MΩ min. 00V AC/minute AWG #0 to #
Plug contact Model number identification Series name MD - S P 0 Product from: S... Chain, B... Loose piece Type of contact: P... Plug contact Applicable wire:... AWG # to #... AWG #0 to # Material:... Phosphor bronze Finish 0... (flash)... 0. micron(0 micro-inch) gold-plated.... micron( micro-inch) gold-plated 0... 90... *Contact JST for details..0(.).9(.).. (.0) (.0) 0. (.0) dia. (flash) MD-SP0 MD-SP0 MD-SP0 MD-SP0 MD-SP90 MD-SP90 Applicable wire mm AWG # Insulation O.D. mm(in.) 0.0 to 0. 0 to 0. to.(.0 to.0) 0. to 0. to.0 to.(.09 to.0) reel 0,000 0,000 9
Housing Housing A (With to circuits). (.) dia..(.09).(.09).0(.09).0(.09).(.) (With 9 circuits) 9. (.0) dia..(.).(.).0(.09).0(.09) 0.9(.0).(.0).(.).0(.09) 0.(.0).0(.09).0(.09).0(.09) 0.(.0).(.0).0(.09) 0.(.0).(.0).(.0) 0.(.0).0(.09).(.0) Housing B (With circuits) (With circuits) (With circuits). (.) dia..(.09).(.09).(.0).(.).0(.09). (.) dia..(.09).(.09).0(.09).(.).0(.09). (.) dia..(.09).(.09).0(.09).0(.09).(.).0(.09).0(.09) JST.0(.09).0(.09).(.0) 0.(.0).0(.09) JST.0(.09).0(.09) 0.(.0).0(.09).0(.09) JST.0(.09).0(.09) 0.(.0).0(.09) (With circuits).(.) dia..(.09).(.09).0(.09).0(.09).0(.09) (With 9 circuits) 9.(.0) dia..(.).(.).0(.09).0(.09) 0.9(.0).(.0).0(.09).0(.09) JST 0.(.0).0(.09).0(.09).0(.09) 0.(.0).0(.09) JST 0.(.0).(.0).(.0).0(.09) 0.(.0) Combined housings A and B Housing A is used with housing B. Housing B must have the same number of orifices as there will be contacts in the connector. However, housing A can have a greater number of cavities (but never less). Thus in applications in which a user may require MD connectors with different pin counts, only one kind of "A" housing needs to be inventoried - the one with the highest pin count. For more details regarding such combinations, contact JST. 0 Housing B Housing A Housing A MD-PIA MD-PIA MD-PIA 9 MD-PI9A Note: MD-PIB is not CSA certified. Housing B MD-PIB MD-PIB MD-PIB MD-PIB MD-PI9B,000,000,000,000,000
Metal shell (straight type) Standard type (With to circuits) (With 9 circuits) 00.0(.9).(.0).(.) 00.0(.9).(.0).(.) 9.0(.) dia. Solder tail 9.9(.9) dia. Solder tail Type A (features polarizing keys, usable with S-VHS connector) Type B (features polarizing keys, usable with having circuits) 00.0(.9).(.0).(.) 00.0(.9).(.0).(.) 9.0(.) dia. Solder tail 9.0(.) dia. Solder tail Standard Type A (features three polarizing keys) Type B (features polarizing keys... circuits only)) With solder tail Without solder tail With solder tail Without solder tail With solder tail Without solder tail to 9 MD-PST MD-PS9T *MD-PST *MD-PS9T *MD-PSAT *MD-PSAT *MD-PSBT *MD-PSBT *Marked products are not CSA certified. 0 0 Ground clip 9.(.0).0(.9).(.0) Applicable cable O.D. mm(in.) to 9 MD-PCCT-S MD-PCCT-S MD-PCC9T-S.(.0) to.(.0).(.9) to.(.).(.) to.(.9) reel,000,000,000
Metal shell (side entry type) Standard type 9.(.).0(.) 00 9.0(.) dia. Type A (features polarizing keys, usable with S-VHS connector) Type B (features polarizing keys, usable with housing having circuits) 9.(.).0(.) 00 9.(.).0(.) 00 9.0(.) dia. 0 9.0(.) dia. L Wiring direction R Type Standard A B to to Model number R L MD-PSSR MD-PSSL MD-PSASR MD-PSBSR 00 00 00 Plug Receptacle Viewing from the mounting side Applicator for the semi-automatic press AP-KN Contact Crimp applicator MKS-L Compact crimp applicator MKS-LS-RG Strip-crimp applicator MKS-SC with safety cover without safety cover with safety cover without safety cover with safety cover MD-PCCT-S APLMK MD-PCCT-S APLNC MD-PCCT-S MD-PCCT-S APLMK MD-PCCT-S APLNC MD-PCCT-S MD-PCC9T-S APLMK MD-PCC9T-S APLNC MD-PCC9T-S MD-PSSL APLMKLS MD-PSSR APLLSNC MD-PSSR MD-PSASR APLMKLS MD-PSSR APLLSNC MD-PSSR MD-PSBSR APLMKLS MD-PSSR APLLSNC MD-PSSR MD-PSSR APLMKLS MD-PSSR APLLSNC MD-PSSR MD-SP** APLMK MD-SP APLNC MD-SP APLSC MD-SP MD-SP** APLMK MD-SP APLNC MD-SP APLSC MD-SP
RECEPTACLE (through-hole type) Shielding tube Holder A spring lock temporarily secures the to the printed circuit board. Shielding cover Housing Features Split round contact provides maximum contact area and contact redundancy The contact is split to insure redundant connection and is cylindrically shaped to provide maximum contact mating area. The result is a highly reliable connection to the mating pin. This superb contact performance is maintained even after many mating and unmating cycles. Flange construction The flange construction allows the to be secured on the equipment chassis with screws, ensuring more reliable electrical connection. Contact The is a split round contact that at once provides maximum contact area and contact redundancy. Standard type with flange shielding cover (Standard type/type B) Compact, high-density design This has a low profile with a mounting height of just.mm (.0") and width of.0mm (."). It takes up little space on the printed circuit board, allowing high-density product design. Spring locks make it easy to temporarily secure s to printed circuit boards for soldering The shielding tubes are equipped with spring locks which can be used to temporarily secure the s to printed circuit boards. This prevents the s from moving and ensures reliable soldering. (Front shielding type) Front shielding construction A metal shielding cover integrating the connection part which connects to the plug's shell is used. Because there is no gap between the and the plug, this construction prevents the entry of space conductive noise. Effective shielding With the front shielding construction and the flange construction, the shielding effect is improved by about db over the conventional models. Standard type without shielding cover (left) Standard type with shielding cover (center) Type B (applicable to Type B plug) (right) Front shielding type Specifications Materials Model number identification Part name Material and Finish Contact Housing / Holder Characteristics Current rating Voltage rating Temperature range Contact resistance Withstanding voltage Applicable PC board thickness [Standard type/ Type B] Shielding tube Shielding cover Phosphor bronze, nickel-undercoated Mating section: gold-plated Solder tail: tin/lead-plated Phosphor bronze, nickel-undercoated silver-plated Phosphor bronze, copper-undercoated, tin-plated PBT, UL9V-0.0A, AC, DC 0V, AC, DC - C to + C (including temperature rise in applying electrical current) Initial value: 00mΩ max. After environmental testing: 00mΩ max. 00V AC/minute.mm(.0") Brass, nickel-plated (*note) Brass, copper-undercoatd, tin-plated Series name Product name: S... Receptacle :,,,,, 9 MD - S 0 00 B - 0 Shielding cover: 0... Without shielding cover... With shielding cover... With front shielding cover Flange: 00... Without flange 0... With flange 0... With top flange with nuts Type B indication B... Type B (Applicable to Type B plug) Blank...Standard type (Applicable to Standard and Type A plugs)...front shielding type (Applicable to Standard and Type plugs) Finish 0... (flash)... 0.micron(micro-inch) gold-plated... 0.micron(0micro-inch) gold-plated 0... 90... [Front shielding Type] Shielding cover Brass, nickel-plated (*note) Note: Use soldering flux that is suitable for nickel-plating. Tin plated version is also available. Note: Contact JST for special plating requirements.
Standard type/ Type B.0(.).(.).(.0).0(.).(.)..(.0) (.) 9.(.).(.09).(.9) 0. (.0).(.09).0(.) [.0(.09)].(.0) M.(.).(.) Without shielding cover With shielding cover [.(.)]. (.).(.) With flange shielding cover [.(.)]. (.).(.) Without shielding cover.(.09). (.).(.).(.09) With shielding cover. (.).(.).(.09) With flange shielding cover Standard type: Without shielding cover 9 9 (flash) MD-S000-0 MD-S000-0 MD-S000-0 MD-S000-0 MD-S000-0 MD-S9000-0 (flash) MD-S00-0 MD-S00-0 MD-S00-0 MD-S00-0 MD-S00-0 MD-S900-0 MD-S000-0 MD-S000-0 MD-S000-0 MD-S000-0 MD-S000-0 MD-S9000-0 Standard type: With shielding cover MD-S00-0 MD-S00-0 MD-S00-0 MD-S00-0 MD-S00-0 MD-S900-0 MD-S000-90 MD-S000-90 MD-S000-90 MD-S000-90 MD-S000-90 MD-S9000-90 MD-S00-90 MD-S00-90 MD-S00-90 MD-S00-90 MD-S00-90 MD-S900-90 Standard type: With flange shielding cover (flash) MD-S0-0 MD-S0-0 MD-S0-0 MD-S0-0 MD-S0-0 (flash) (flash) MD-S0-0 MD-S0-0 MD-S0-0 MD-S0-0 MD-S0-0 Type B: Without shielding cover MD-S0-90 MD-S0-90 MD-S0-90 MD-S0-90 MD-S0-90 MD-S000B-0 MD-S000B-0 MD-S000B-90 Type B: With shielding cover MD-S00B-0 MD-S00B-0 MD-S00B-90 Front shielding type M..0(.).0(.).(.9).0(.) Type B: With flange shielding cover (flash) MD-S0B-0 MD-S0B-0 MD-S0B-90.9(.).(.0).(.) 9.(.) Front shielding type (flash).(.0) MD-S0-0 MD-S0-0 MD-S0-90.(.).(.).(.).(.).(.09) MD-S0-0 MD-S0-0 MD-S0-0 MD-S0-0 MD-S0-90 MD-S0-90 MD-S0-0 MD-S0-0 MD-S0-90
PC board layout Layout Mating section layout Standard and Type B PC board layout (viewed from component side) Front shielding type Note. ± 0.0(.0 ±.00). ± 0.(. ±.00). ± 0. (.09 ±.00) 0. ± 0.(.0 ±.00). ± 0.(. ±.00) +0. (.0 +.00 0 )dia. 0. ± 0. (.0 ±.00). ± 0.0 (.09 ±.00). ± 0.(.0 ±.00).0 ± 0.0(. ±.00).(.)max.. ± 0.(. ±.00). ± 0.(. ±.00) Hole dimensions (from the front). ± 0. (.0 ±.00)dia. +0. +.00 (.0 0 )dia..0 ± 0.0 (. ±.00). ± 0.0 (.09 ±.00).(.)max. Note: The two holes are necessary when installing a shielding cover. Note. ± 0.0(.0 ±.00). ± 0.(. ±.00). ± 0.0(.0 ±.00). ± 0. (.09 ±.00) 0. ± 0.(.0 ±.00). ± 0.(. ±.00) +0. 0.9 +0 +.00 (.0 0 )dia. 0. ± 0. (.0 ±.00). ± 0.(.0 ±.00).0 ± 0.0(. ±.00). ± 0.0.(.)max. (.09 ±.00). ± 0.(. ±.00). ± 0.(. ±.00) Hole dimensions (from the front). ± 0.0(.0 ±.00). ± 0. (.0 ±.00)dia. +0. +.00 (.0 0 )dia..0 ± 0.0 (. ±.00). ± 0.0 (.09 ±.00).(.)max. Note: The two holes are necessary when installing a shielding cover. Note. ± 0.0(.0 ±.00). ± 0.(. ±.00). ± 0.0(.0 ±.00). ± 0. (.09 ±.00) 0. ± 0.(.0 ±.00). ± 0.(. ±.00) +0. +.00 (.0 )dia. 0 0. ± 0. (.0 ±.00). ± 0.0 (.09 ±.00). ± 0.(.0 ±.00).0 ± 0.0(. ±.00).(.)max.. ± 0.(. ±.00). ± 0.(. ±.00) Hole dimensions (from the front). ± 0.0(.0 ±.00). ± 0. (.0 ±.00)dia. +0. +.00 (.0 0 )dia..0 ± 0.0 (. ±.00). ± 0.0 (.09 ±.00).(.)max. Note: The two holes are necessary when installing a shielding cover.
PC board layout Layout Mating section layout Standard and Type B PC board layout (viewed from component side) Front shielding type Note. ± 0.(. ±.00). ± 0.0(.0 ±.00) 0.9 ± 0.0(.0 ±.00). ± 0.0(.0 ±.00). ± 0. (.09 ±.00) 0. ± 0.(.0 ±.00). ± 0.(. ±.00) +0. +.00 (.0 0 )dia. 0. ± 0. (.0 ±.00). ± 0.0 (.09 ±.00). ± 0.(.0 ±.00).0 ± 0.0(. ±.00).(.)max. Note: The two holes are necessary when installing a shielding cover. (Type B) Note. ± 0.(. ±.00). ± 0.0(.0 ±.00) 0.9 ± 0.0(.0 ±.00). ± 0.0(.0 ±.00). ± 0. (.09 ±.00) 0. ± 0.(.0 ±.00). ± 0.(. ±.00) 0.9±0. (.0±.00)dia. 0. ± 0. (.0 ±.00). ± 0.0 (.09 ±.00). ± 0.(.0 ±.00).0 ± 0.0(. ±.00).(.)max.. ± 0.(. ±.00) 0.9 ± 0.0(.0 ±.00). ± 0.(. ±.00) Hole dimensions (from the front). ± 0.0(.0 ±.00). ± 0. (.0 ±.00)dia. +0. +.00 (.0 0 )dia..0 ± 0.0 (. ±.00). ± 0.0 (.09 ±.00).(.)max. Note: The two holes are necessary when installing a shielding cover.
PC board layout Layout Mating section layout Standard and Type B PC board layout (viewed from component side) Front shielding type 9 9 Note.0 ± 0.(. ±.00).0 ± 0.(. ±.00).0 ± 0.0(.09 ±.00) 9 0. ± 0.0(.0 ±.00). ± 0.0(.0 ±.00). ± 0. (.09 ±.00). ± 0.0(.0 ±.00) 0. ± 0.(.0 ±.00). ± 0.(. ±.00) +0. +.00 (.0 0 )dia. 0. ± 0. (.0 ±.00). ± 0.0 (.09 ±.00).(.)max..0 ± 0.0(. ±.00). ± 0.(.0 ±.00) Note: The two holes are necessary when installing a shielding cover. Note:. Tolerances are non-cumulative: ±0.0mm(±.00" ) for all centers.. Hole dimensions differ depending on the kind of PC board and piercing method. The dimensions above should serve as a guideline. For details, contact JST.. The layout drawing is viewed from the mounting side.. When using a with shielding cover or with flange shielding cover, the pattern should be designed to connect the shielding cover and the shielding tube, if necessary. (No need for the front shielding cover.)
Assembly layout Receptacle Plug Straight type Side entry type Standard type Type B With shielding cover.(.0).0(.) 0.0(.).(.).(.0).0(.).0(.9).(.).(.).(.0) 0.0(.).(.).(.0).0(.9) Standard type Type B With flange shielding cover.(.0).(.0).(.).(.).(.9) 0.0(.).(.).(.9).0(.9) Front shielding type 9.(.) 9.(.).(.).(.)