Wire gauge and plating across the series
The 350570-3 accepts 18-24 AWG wire; the sibling 350537-3 and 350536-1 accept 14-20 AWG, all sharing the same tin-plated socket design and crimp termination.

TE Connectivity AMP Connectors Universal MATE-N-LOK socket contact, order code 350570-3, 18-24 AWG, tin-plated, crimp termination, Tape & Reel packaging.
| Parameter | Value |
|---|---|
| Series | Universal MATE-N-LOK |
| Wire gauge | 18-24 AWG |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Pin or socket | Socket |
| Contact finish | Tin |
| Contact termination | Crimp |
The 350570-3 accepts 18-24 AWG wire; the sibling 350537-3 and 350536-1 accept 14-20 AWG, all sharing the same tin-plated socket design and crimp termination.
The 350570-3 accepts 18-24 AWG wire.
Both are tin-plated socket contacts for the Universal MATE-N-LOK series with the same 18-24 AWG wire range and crimp termination. The 350570-1 is a parametric peer; the 350570-3 is functionally identical for the same wire range.