How to order MDM connectors
MDM × - × TJ/ZK × × - × × （covering）
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
①：MDM —Series Prefix
②：× —Variations:
No designator—basic type A—fast locking type C— the outer material is Cu-Sn-P and plating nickel
D— mounting hole changed for M2-6H M— sealed with glue M1— sealed with agglutination glass
③：× —Number of Contacts：9,15,21,25,31,37,51,74,100
④：TJ/ZK —Type of connectors and contacts:
TJ— pin in the plug ZK—socket in the receptacle TJ,ZK is fixation couple
Generally the connector with letter "TJ” called plug, and the connector with letter "ZK” called receptacle.
⑤：× —Termination Style: no designator—crimp contact S—solder contact N—in-line contact for
PCB W—right angle contact for PCB
⑥：× —Hardware: see MDM retaining member
⑦：× — Plating Layer: no designator—plating cadmium G—plating nickel
⑧：× — Variation：A—the outer tail end with EMI/RFI cable clamp C— suitable for contact and wire is right
angle D—the termination end of receptacle outer flange with spin proof groove AD—the combination of variation
A and D J—the interval of PCB reseau is 1.27×2.54（row × line） Q—outer flange widen
Note：the covering is not included in the ordering information, please mark the cable type in the bracket. For
example: the sectional area, the length and the color of cable. If the relative of connecting cable is special,
please give the connecting cable table.
For example
MDM – 31 ZKP GAD （11.6）（using the cable for AFR-250 0.12mm2, length is 300mm, with chinlon and
silk sleeve）
Means the MDM receptacle, the number of contacts is 31, socket in receptacle, the termination style is crimp
contact, and the connector with type P retaining member , tail cover and cable clamp, and the cables are sleeved with
Heat-shrink tube and EMI/RFI net. The outer and cable clamp and tail cover is plated nickel, the outer flange with spin
proof groove and the width of flange is 11.6mm; the mark of cable is AFR-250, and the section area is 0.12mm2, the
length of wire is more than 300mm, the color of the cable is willful, but the connectors ordered at the same time must
be same and all of the hole positions crimp contacting with cable（for the color and hole position of cables are not
mentioned in the covering）. The cables outer sleeved with chinlon and silk.
MDM × - × TJ/ZK × × - × × （covering）
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
①：MDM —Series Prefix
②：× —Variations:
No designator—basic type A—fast locking type C— the outer material is Cu-Sn-P and plating nickel
D— mounting hole changed for M2-6H M— sealed with glue M1— sealed with agglutination glass
③：× —Number of Contacts：9,15,21,25,31,37,51,74,100
④：TJ/ZK —Type of connectors and contacts:
TJ— pin in the plug ZK—socket in the receptacle TJ,ZK is fixation couple
Generally the connector with letter "TJ” called plug, and the connector with letter "ZK” called receptacle.
⑤：× —Termination Style: no designator—crimp contact S—solder contact N—in-line contact for
PCB W—right angle contact for PCB
⑥：× —Hardware: see MDM retaining member
⑦：× — Plating Layer: no designator—plating cadmium G—plating nickel
⑧：× — Variation：A—the outer tail end with EMI/RFI cable clamp C— suitable for contact and wire is right
angle D—the termination end of receptacle outer flange with spin proof groove AD—the combination of variation
A and D J—the interval of PCB reseau is 1.27×2.54（row × line） Q—outer flange widen
Note：the covering is not included in the ordering information, please mark the cable type in the bracket. For
example: the sectional area, the length and the color of cable. If the relative of connecting cable is special,
please give the connecting cable table.
For example
MDM – 31 ZKP GAD （11.6）（using the cable for AFR-250 0.12mm2, length is 300mm, with chinlon and
silk sleeve）
Means the MDM receptacle, the number of contacts is 31, socket in receptacle, the termination style is crimp
contact, and the connector with type P retaining member , tail cover and cable clamp, and the cables are sleeved with
Heat-shrink tube and EMI/RFI net. The outer and cable clamp and tail cover is plated nickel, the outer flange with spin
proof groove and the width of flange is 11.6mm; the mark of cable is AFR-250, and the section area is 0.12mm2, the
length of wire is more than 300mm, the color of the cable is willful, but the connectors ordered at the same time must
be same and all of the hole positions crimp contacting with cable（for the color and hole position of cables are not
mentioned in the covering）. The cables outer sleeved with chinlon and silk.