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PCB Assembly Services

Zitrok offers both Prototype and Production PCBA services with surface-mount (SMT), through-hole (THT) and mix components . For Prototype, there is no limitation in quantity. We offer turn-key (just send us the Gerber and BOM files), consignment (you supply all parts) and various components purchase options to help you reduce cost and wait time.

Parts & Component Sourcing

To assemble your PCB board, we accept components and parts in the following three approaches.

1.       You supply the parts.

2.       We purchase on your behalf, from your specified distributors, such as Digi-Key, Mouser, Arrow, Future Electronics and others.

3.       Use our in-house component stock.

Technical Capabilities

Supported Capabilities

Type of assembly

,         THD (Thru-hole device) / Conventional

,         SMT (Surface-mount technology)

,         SMT & THD mixed

,         Double-sided SMT and/or THD assembly

Order quantity

,         Prototype to mass production


,         Passives, smallest size 0201

,         Fine pitch to 08 Mils

,         Leadless chip carriers/ BGA, VFBGA, FPGA & DFN

,         Connectors and terminals

Component packaging

,         Reels

,         Cut tape

,         Tube

,         Loose parts

Board dimensions

,         Smallest size: 0.25 ̄ x 0.25 ̄, 6mm x 6mm

,         Largest size: 15.75≦ x 13.5≦, 400mm x 340mm

Board shape

,         Rectangular

,         Round,

,         Slots,

,         Cutouts,

,         Complex,

,         Irregular

Board type

,         Rigid

,         Flexible

,         Rigid-flexible

Solder Type

,         Leaded and Lead-Free

,         Water soluble solder paste

,         Manual soldering for special parts, e.g. wires and temperature sensitive parts.

Design file format

,         Gerber RS-274X, 274D, Eagle and AutoCAD¨s DXF, DWG

,         BOM (Bill of Materials)

,         Pick and Place file (XYRS)

Testing Procedures

We perform multiple quality assurance procedures before shipping out any board. These include:

,         Visual inspection,

,         X-ray Inspection,

,         AOI (Automated Optical Inspector),

,         Functional test (test modules need to be supplied) .


Finished boards are packed in antistatic bag with unit-pack or multiple-pack box.

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