Sierra Standard Product | Sierra Circuits

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Discover the Sierra Standard Product

The Sierra Standard Product is our new online quoting and ordering platform made for PCB designers. Quote and order your assembled circuit board within 5 minutes. Receive your products within 5, 10 or 15 days. Our circuit boards are proudly manufactured and assembled in Silicon Valley.

The Sierra Standard Product offers real-time stock visibility and seamless integration with suppliers to ensure transparent pricing. You can receive an online quote for PCB fabrication, components, and assembly, all made in America, in less than 5 minutes.

PCB fabrication
All PCBs are made with US materials and are built to IPC-A-6012 Class 2 in our Silicon Valley facilities.
Component procurement
Components are procured from authorized distributors, checked for counterfeit, and electrically tested.
Assembly
0201 component placement through our Pick-and-Place machines with AOI and X-ray.

At Sierra Circuits, our engineers and turnkey PCB build teams are always accessible and responsive throughout the entire process, from the initial quote to production and shipping. We take pride in offering top-notch American-made PCB solutions.

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Product Promise

Get your PCBs fast without sacrificing quality.

Our services are all in-house:

PCB fabrication
Component procurement
Assembly
DFM check

Assembly specs:

BOM availability check
DFA check
100% net-list testing

Get USA-quality prototypes

5 or 10 fully assembled boards
Delivered within 10 days
Built to IPC-6012 class 2 specs
UL approved

Sierra Standard Product Fabrication & Assembly Capabilities
Board Type	Rigid PCBs
Board Shape	Simple shapes, not complex.
Board Spec	IPC-6012 Class 2, no IPC coupons or microsection coupons provided. No mil-spec.
Stack-Up Design	Sierra Circuits standard stack-ups.
Fabrication of ITAR or Export Controlled jobs?	No, we do not process any ITAR or Export controlled orders in this service. Only send us files that are not ITAR controlled or have no export control restrictions.
RoHS Available?	Yes, your board can be RoHS if you choose RoHS-compliant surface finish (ENIG). You have an option to not have any RoHS markings on your board if you so choose.
Number of Layers	2 layers, 4 layers, 6 layers, 8 layers.
Laminations	Single lamination double-sided or multi-layer boards only. In this online offer, we do not provide boards that need multiple laminations or have HDI features.
Blind Vias	No.
Buried Vias	No.
High-Density Interconnect (HDI)	No. In this online offer we only provide single lamination PCBs with through-hole vias.
Non-plated Holes	Yes.
Vias-in-Pad	We can manufacture your PCBs that have via-in-pad features. An extra process of non-conductive filling will be done on all vias, to ensure good soldering at assembly. Such vias must be 6 mils or more in size. In Sierra Standard Product service, we only offer 7 days, 10 days and 15 days turnkey when your board has via-in-pad features.
PCB CAD Data Format	Gerber RS-274X, ODB++, IPC-2581
Are Arrays Allowed in PCB CAD Data?	No (only single image of single PCB allowed).
Data for PCBs	For PCBs: We prefer RS-274X extended Gerber format. If your file is not in RS-274X, send an aperture file. Please, see FAQs below for what files to include.
Data for Assembly	BOM (in excel), X Y data, and assembly drawing.
Turnkey Turntimes	5 days, 7 days, 10 days and 15 days.
Cut-Off Time	5:00 PM. Day 0 begins when validation is done or the final consigned components are received, whichever is later.
Order Quantities	5 or 10 only
Maximum Board Size	Must fit a 10″ x 16″ box. The area must be less than 150 square inches.
Minimum Board Size	1" x 1"
Dimensional Tolerance	+/- 5 mils
Hole Diameter Tolerance	+/- 3 mils
Slot Dimensional Tolerance	+/- 5 mils
Minimum PCB Dimensions	.5"
Maximum PCB Dimensions	15.9"
Material	FR-4 lead-free (370HR material)
Thickness & Thickness Tolerance	0.062" finished thickness with +/-10% tolerance
Arrays	Arrayed designs are not allowed. Your PCB design must have just a single image of a single board. (Our engineers will array it as needed for Sierra assembly and finally ship you fully-assembled individual boards.)
Minimum Trace	4 mils
Minimum Spacing Between Adjancent Copper Features	4 mils
Standard Copper Overplate	Surface pattern: Nominal 1 oz/sq foot. (0.0013″ to 0.002″) (33 microns to 51 microns)
Outer Layers Copper (Finished)	1 oz to 1.3 oz (decided by the fabrication process)
Special PCB Features Not Allowed	This product does not allow special PCB features such as counterbores, countersinks, edge plating, castellation, beveling etc.
Inner Layers Copper	1 oz
Maximum Number of Holes Per Board	80 holes/square inch
Minimum Via Size	0.006"
Minimum Annular Ring Width	0.005"
Minimum Air Gap	0.004″ (space between any two copper features)
Controlled Dielectric	No.
Controlled Impedance Tolerance	+/- 10%
Controlled Impedance Types	Single ended and/or differential pair (with or without co-planar). Impedance values subject to trace width and spacing constraints of this product.
Maximum Number of Controlled Impedance Transmission Lines on a Single Layer	2
Maximum Number of Layers with Controlled Impedance Lines	2 for 2L, 2 for 4L, 4 for 6L, 4 for 8L
Multiple Parts in One Design	To keep our online service low-priced and hassle-free, we keep it simple. We do not allow different PCB designs and multiple BOMs to be combined in one order. Our system can only accept design files for a single circuit board with a single BOM. We cannot merge BOMs, de-duplicate multiple BOMs, etc.
Solder Mask	Green.
Legend / Silkscreen	White.
Notches, Cutouts and Slots	Up to 10 notches, cutouts and slots allowed.
Logo	Manufacturer's logo, UL markings, etc. will be put on bottom silkscreen. Assembly QR sticker may also be applied.
Customer Serialization	No.
IPC Coupons & Microsection Reports	Not provided in this online offering. Only available in custom ordered products.
Electrical Testing	100% net-list testing on every board.
Shipping Options	FedEx/UPS, Will Call. You can use your own FedEx/UPS account number. International shipments allowed. All duties/customs are the responsibility of the customer.
Payment Terms	Credit card (PO allowed for select customers who have set up credit terms). Payment link convenience: If your purchasing department typically puts in credit card number, you can still place an order and our system will email a payment link to that person. Order will start when payment information is received.
Restrictions	If your board has via-in-pad features, only 7 days, 10 days and 15 days turnkey quotes allowed (you cannot quote for 5 days turnkey). If you want faster turn times, you may use our custom quote service).
Assembly Class Specs	IPC-A-610 Class 2
Assembly of ITAR Designated Jobs?	No.
Assembly on Both Sides	Yes.
Minimum Passive Component Size	0201 inches
BGA Minimum Pitch	0.5 mm. BGAs cannot have more than one ball size nor more than one pitch.
Minimum Pitch of Other Components	0.4 mm
Minimum SMT Component Pad Size	Minimum 8 mils x 8 mils or 8-mil diameter
Maximum Number of Through-Hole Components	20 per board
Minimum Component Pad Size	Minimum 8 mils x 8 mils or 8-mil diameter
Not Allowed in Sierra Standard Product Service	Wire-bonding, conformal coating, underfills, staking, POP assembly, wire/cable assembly. Rework like cutting traces, soldering wire jumpers. Assembly of PEM nuts, turrets terminals, rivets, and press-fit connectors. (To get any of these extra assembly features, please ask for a custom quote.)

Trusted by innovators

Engineers and PCB designers at the world's most innovative companies choose Sierra Circuits for top quality PCBs.

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Standard high-quality and fully assembled PCBs made in Silicon Valley.

For designers and engineers facing tight deadlines or seeking supply chain simplification, the Sierra Standard Product stands out as the most reliable full-service turnkey PCB solution available.

Ideal for:

PCB designers and electrical engineers building prototypes or bringing products to market.
Contract manufacturers who need fast, predictable lead times.
Purchasing teams who require pricing and supply-chain transparency.
Tinkerers, hobbyists, and builders who would benefit from the expertise of our in-house CAM engineers.

The Sierra Standard Product also includes:

PCB fabrication
Component procurement
In-house assembly
DFM check

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Book a tour with an account manager today!

Let us introduce you to one of the most innovative communities of engineers and designers in the world.

We can help you plan your project from design to assembled board.

Manufacturing Equipment at Sierra Circuits

Our 70,000 sqft state-of-the-art campus in the heart of Silicon Valley contains the most advanced equipment required for the manufacture and assembly of your PCBs. Whether you’re looking for standard quick turn PCBs or boards with the tightest tolerances, made from exotic metals, there’s a reason Sierra Circuits leads the industry in quality and performance.

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