2.0mm Pitch Wafer Auto Connector – 24 Pin SMT Right Angle Board-to-Wire Connector, Tin or Gold Plated

The part number tells you most of what you need. “2X12” means two rows of twelve positions, and “WRS” marks the wafer style with surface-mount legs. That makes this a 24 pin SMT wafer connector for boards where a harness has to plug in from the side. Because the body is right angle, the cable enters parallel to the PCB, which keeps the assembly low and lets the harness run along the edge of the module.

Surface mounting matters on automotive boards that are built entirely by reflow. The connector goes down with the other components, so there is no separate through-hole soldering step and no second pass through the line. Tray packaging is available for pick-and-place feeding, and bags are offered for smaller runs.

JST describes its CPT line as a miniature, low-profile 2.0 mm pitch surface-mount connector for automotive PC boards (see the JST CPT connector page). Our part follows the same 2.0 mm format, and it is listed as a replacement for the JST eCPT series. If your bill of materials names a JST part, send us the number and we will check the match.

This listing does not describe a sealed connector, so it belongs inside a closed module or the passenger compartment. For wet or exposed positions, look at the 12 pin waterproof automotive connector. The full automotive connector range is on the products page.

The drawing and datasheet are available on request. Write to sales@vistarelectronics.com and include the reference part you are replacing, so the footprint and mating parts can be confirmed before you order.

Smaller and larger versions of the same format are available. The 2 pin SMT wafer automotive connector and the 20 pin automotive wafer connector SMT let you keep one connector family across several modules in the same vehicle.

A double row automotive wafer connector with this many circuits usually sits on a board that gathers a lot of signals in one place. JST introduced the CPT family for miniature automotive PC boards, and the same kind of board is where this part is used.

Before you release a layout, ask for the recommended land pattern and follow it exactly. On a 24-position part with a long body, small errors in pad length or spacing show up as opened or bridged joints after reflow.

Keep copper and solder mask symmetrical around the mounting legs so the part does not lift on one side while the paste melts. Right angle connectors also take stress at the solder joints every time a harness is plugged in, so leave clear space around the body and make sure the cable is strain-relieved further along its length.

Tray-packed parts should stay in the tray until they are loaded. If they are exposed to humidity for a long time, ask us for storage guidance for your factory conditions.

Tin is the usual choice for power lines and general signals. It is economical and predictable when both contacts of the pair are tin. Gold is worth the added cost on low-voltage, low-current circuits such as sensor inputs, where a film on the contact surface could change the signal level.

Keep the plating the same on both halves of the mating pair. Mixing tin and gold invites fretting corrosion in a vehicle that vibrates every day. When you request a quote, tell us which plating your mating terminals use.

The header is only one half of the connection. The harness side needs a matching housing, crimp terminals and wire in the right gauge. Our CPT connector 4 way and the 2.00mm double row housing show the 2.0 mm crimp housings we supply, and we can advise which one pairs with this header for your circuit count.

A secondary retainer on the housing is worth specifying. JST notes that this feature confirms a crimped contact has been fully inserted (see the JST MEC connector page), and it saves a rejected harness at final test.

We also build finished cable assemblies. For a project that needs a different family, compare this part with the MX34 automotive connector 12 way or the 16 way MX34 connector, which use a 2.2 mm pitch. The guide to automotive connector types explains how these families differ.

Send the part number, plating, quantity and target delivery date through the contact page, or use the Get a Quote button at the top of this page. If you are replacing a JST part, include its complete part number so we can check compatibility first.

Samples are available for engineering evaluation. We normally reply within one working day with pricing, lead time and a datasheet.