CHAPTER 22 ■ SOLDERING AND CONNECTING
Figure 22-15. Wire inserted into terminal with plastic insulation in end flaps and bare wire in inner flaps
Table 22-2. Suppliers of Molex KK Equipment and Parts
Supplier Part Number Price Description
Mouser 538-08-50-0114 $0.13 Terminal
Mouser 538-22-23-2021 $0.20 Two-Pin Straight Friction-Lock Header
Mouser 538-22-23-2041 $0.37 Four-Pin Straight Friction-Lock Header
Digi-Key WM2000 $0.13 Two-Pin Housing with Locking Ramp and Polarizing Ribs
Mouser 538-22-01-3027 $0.13 Two-Pin Housing with Locking Ramp and Polarizing Ribs
Digi-Key WM4200 $0.20 Two-Pin Straight Friction-Lock Header
Digi-Key WM2002 $0.20 Four-Pin Housing with Locking Ramp and Polarizing Ribs
Mouser 538-22-01-3047 $0.20 Four-Pin Housing with Locking Ramp and Polarizing Ribs
Digi-Key WM4202 $0.37 Four-Pin Straight Friction-Lock Header
Digi-Key WM1114 $0.19 Terminal
Jameco 304928 $49.95 Universal Crimp Tool
Digi-Key WM9999 $55.08 Universal Crimp Tool
Attaching Molex KK Connectors to the Motors
The wires coming from the motors should already have about 0.35 cm of their plastic insulation stripped off,
exposing bare wire.
- There are two sets of “flaps” on the metal terminal. Insert the wire into the
terminal so that the bare wire is located at the inner set of flaps and the insulated
portion of wire is located at the flaps on the end (see Figure 22-15). This is so
that one set of flaps will be crimped over the bare wire to make an electrical
connection and the other set of flaps will be crimped over the plastic insulation
to mechanically hold the wire securely. - Carefully insert the wire and terminal into the 1.6 mm diameter slot of the crimp
tool, so that only the flaps over the bare portion of the wire will be crimped
(see Figure 22-16). The flaps should point toward the numbers printed on the
crimp tool.