Surface Mount Terminal Blocks
TYPE 140-A-524-SMD
5 mm spacing   -   2 to 12 poles

Rear view

Front view

Elevator Style Clamping

RoHS WEEE Pb free compliant
 
 
Description
 
US Patent 6966795brFlat contact leads provide a large surface area for reliable solder joints. The solder retention devices (SMT anchors) provide an exceptionally high retention force for the terminal block to the PCB. The most significant benefit of this design is the protection it provides to the solder joints against stresses encountered in field-installations. In terms of co-planarity tolerances of 0.2 mm or less are present for 2 to 6 poles and 0.3 mm or less for 7 to 12 poles. The elevator style contacts ensure a reliable electrical and mechanical interconnect solution. This lead coplanarity and the retention devices create a solid connection resulting in high process yields with no open circuits and high infield reliablity to human factors in use installation and maintenance. Material will handle reflow temperatures well without deforming or melting.

Flat leads
Wire entrance parallel to PC Board
Typical peel off forces 30 kg on any devices (depending on soldering process)brTypical PCB retention force of anchoring elements against peel off force is 66 lbs (30 kg).
 
 
Technical Data
 
Center to Center Spacing:  5 mm (0.197 in.)
Nominal Cross Section:
1.5 mm2 (2325 mils2)
Wire Stripping Length: 6 mm (0.25 in.)
 
 
Application
 
You can now convert one more component on your board to a genuine surface mount. You can increase packaging and component density, use both sides of the PCB, reduce and eliminate set-up costs and simplify and streamline your processes. Flat contact leads provide a large surface area where screw torque is not transmitted to the solder joint, and integrated solderable retention devices ensure in field reliability in thermal cycling and protect against human factors during in field use. These solder joints have the strength and the shape required to make a consistently safe and reliable field-proven connection that meet application and regulatory requirements. The elevator-style-clamping mechanism allows an almost unlimited number of connections and disconnections of the wire.
 
 
 
 
 
Dimensions: mm (in.)
 
Length of Connector (L)brL = No. of Poles x Center to Center Spacing + 10 mmbr(A) Retention System (Patent Pending)br(B) Recommended Pad LayoutbrStencil Thickness 0.20 mm (0.08 in.)
 
 
Approval Information
 
UL File No.E69841
CSA File No.LR24322
 
Rating
Current(A)
Voltage(V)
Application
group
    AWG   
UL 10 300 B,C,D 30-14
CSA 15 300 B 30-14

* UL 20A range for factory wiring only.

Screw Tightening Torque:
UL: 4.5 lfbin
CSA: 0.51 Nm
Rated Impulse Withstand Voltage: 2500 V
 
 
Material
 
Molding:  Polyamide 4.6, 30% GF (glass fiber reinforced), self extinguishing UL 94, V-0, color black
Temperature limits:
Short Time:  260°C (500°F)
Continuous:  RTI 105°C (221°F)
Low Limit:  -40°C (-40°F)
Comparative Tracking Index:  CTI > 250
Oxygen Index Rating:  37%

Terminal Body: Nickel plated copper alloy
Current bar: Tin plated copper alloy
Screw: M3, Slotted head, zinc plated blue passivated, steel substrate
Pressure Plate: Tin plated copper alloy
Average weight: 1.14 gram per pole and 0.04 gram for the removable pick cap,
 
 
 
 
Item 140-A-524-SMD
 
Options   CN Consecutive Numbering (hot stamped numbers)
SM Special Marking (please provide sketch)
BS Copper Alloy Screw
PS Clear Chromate Passivated zinc plated Steel Screws
G05 Gold Plating (5 micro inches)
G30 Gold Plating (30 micro inches)
S30 Silver Plating (30 micro inches)
TR Tape and Reel Assembly
PCP Removable Pick Cap
 
Note: Plated component: contact spring
 
Ordering Note: See download PDF for complete tape and reel assembly specifications
 
 
Request sample
Request quote
 
  Quantity  

Accessories
 POLES:
02 to 12
  140-A-524-SMD/
 
2008, SMarTconn is a registered trademark of
WECO Electrical Connectors Inc.
ISO 9001 registered quality management system