740 Switchcraft Inc., 740 Datasheet - Page 27

• Manufacturer Part Number: 740
• Description: CONN PLUG MINI PHONE 2COND
• Manufacturer: Switchcraft Inc.
• Type: Plugr

Specifications of 740

• Gender: Male
• Color: Black
• Rohs Information: Switchcraft RoHS Info.
• Connector Type: Phone Plug
• Signal Lines: Mono
• Plug/mating Plug Diameter: 3.50mm (0.141", 1/8", Mini Plug) - Headphone
• Number Of Positions/contacts: 2 Conductors, 2 Contacts
• Internal Switch(s): Does Not Contain Switch
• Mounting Type: Free Hanging (In-Line)
• Termination: Screw
• Shielding: Unshielded
• Mounting Style: Cable
• Standard: 1/8 in
• Termination Style: Screw
• Contact Plating: Nickel
• Contact Material: Copper Alloy
• Angle: Straight
• Cable Outer Diameter: 0.188
• Conductor Size: 2 (1.141 in.)
• Diameter: 3.75 in.
• Length: 1.609 in.
• Material, Body: Copper Alloy
• Number Of Contacts: 2
• Plating, Body: Nickel-Plated
• Primary Type: Phone
• Size: 0.141"
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SC1053

26
PATCHBAYS
MT48/MT52 Patchbay Series
Features and Benefits
Specifications
Materials
Jacks
Panel
• Units feature either 48 or 52
• Steel frame jacks for superior
• Attractive, corrosion resistant
• Gold switching contacts for
• Offset ground terminal for ease
• Fanned solder terminals for
• Cable tie bar takes the weight
• Four jack configurations
Frame: Steel, nickel-plated
Bushing: Brass, nickel-plated
Springs: Nickel silver, solder lugs
Ground Terminal: Nickel silver,
Switching Contacts: Welded,
Insulation: Phenolic spacers, rigid
Screws: Steel, nickel-plated
Jack Panel: Thermoplastic
Cable Support Bracket: 5/16"
Screws (designation strip): Steel,
Screws (mounting jack): Steel,
Kwik-change
Marking Strip:
Marking Strip Cover:
MT Jax
jack life
nickel-plated jacks
long-term reliability in normal-
through connections
in making common ground buss
connections
easier solder connections
of cables off the jacks
available for the exact switching
arrangement: full normal, half
normal, non-normal, and
normals strapped
solder lugs
gold alloy
PVC tubing through stack
diameter black epoxy painted
steel rod
black zinc-plated
nickel plated
Extruded aluminum, black anodized
White plastic, matte finish
Clear, extruded plastic
®
* Please visit the product pages on our website for the most up-to-date product information
®
Designation Strip:
Mechanical
Ordering Information
Part Number
MT48FN
MT48HN
MT48NN
MT48NS
MT52FN
MT52HN
MT52NN
MT52NS
Life: 30,000 cycles
Insertion Force: 7 lbs. maximum
Withdrawal Force: 1 lb. minimum
Operating: 0˚C to +50˚C
The MT48/52 Series patchbays offer a rugged cable tie bar to support rear
cabling. Also available is the normals strapped configuration which has the shunts
or normals tied together, top to bottom jacks.
MT48FN
Type of Jack
MT
MT
MT
MT
MT
MT
MT
MT
No. of Jacks
48
48
48
48
52
52
52
52
Electrical
Contact Resistance: 30 milliohms
Insulation Resistance: 10,000
Dielectric Withstanding Voltage:
Working Voltage: 140VDC
Current Rating: 100 milliamps
maximum initial
megohms maximum
500VAC at 60 Hz
maximum
Description
Full normals
Half normals
No normals
Normals strapped
Full normals
Half normals
No normals
Normals strapped