PCBA

Why UNIXPLORE Delivers Industrial-Grade PCBA for Critical Applications

For engineers and procurement managers, a Printed Circuit Board Assembly (PCBA) is the single most failure-sensitive component in any electronic product. UNIXPLORE, operating from Dongguan, China since 2011, has built its reputation on assemblies that survive real-world conditions—temperature cycling, vibration, humidity, and continuous operation.

Unlike high-volume consumer board houses, UNIXPLORE focuses on application-specific reliability across eight industries, from medical equipment to automotive systems.

The UNIXPLORE Turnkey Advantage

One vendor controlling the entire chain eliminates finger-pointing. UNIXPLORE owns or directly manages every step:

• PCB design & fabrication – In-house layout review for signal integrity.
• Component procurement – Sourcing from franchised distributors only.
• SMT & THT assembly – Panasonic and Yamaha placement lines.
• Pre-programming – Microcontrollers flashed before soldering.
• Functional testing – Custom test jigs for each product.

Box building & cable harness – Finished product ready for retail.

Certifications You Can Verify

UNIXPLORE maintains four active third-party certifications:

• ISO9001:2015 – Full quality management system.
• SGS – Independent material and process verification.
• RoHS – Compliance for European and North American markets.
• UL – Recognized component assembly for fire safety.

No certification is displayed unless current. UNIXPLORE publishes audit dates on request.

Eight Application-Specific PCBA Categories From UNIXPLORE

Each category uses different design rules, component grades, and testing protocols.

Home Appliances PCBA

Washing machines, refrigerators, induction cooktops. Requires conformal coating against steam and detergent residue. UNIXPLORE adds relay snubbing circuits to prevent microcontroller resets.

Industrial Control PCBA

PLCs, motor drives, temperature controllers. Wide operating range (-30°C to +85°C) with surge protection on all inputs. UNIXPLORE uses 105°C-rated capacitors as standard.

Automobile PCBA

Interior lighting, window controls, seat heaters. Vibration resistance is mandatory. UNIXPLORE secures all connectors with adhesive and specifies automotive-grade (AEC-Q200) passives.

Consumer Electronic PCBA

Smart plugs, remote controls, power banks. Cost-sensitive but requires consistent solder joints. UNIXPLORE applies 100% automated optical inspection (AOI) even for low-margin runs.

Medical Equipment PCBA

Patient monitors, infusion pumps, diagnostic devices. Component traceability to batch level. UNIXPLORE isolates the medical line in a separate clean zone.

Security System PCBA

IP cameras, motion sensors, access panels. Focus on low standby power. UNIXPLORE tests each board for leakage current below 50µA.

Healthcare PCBA

Rehabilitation equipment, thermometers, elderly alert wearables. Lower regulatory burden than medical but requires user-safe design (no sharp solder tails, no exposed high voltage).

LED Lighting PCBA

Linear drivers, horticultural lights, emergency exit signs. Thermal management determines lifespan. UNIXPLORE uses aluminum-core PCBs and thermocouple validation during test.

UNIXPLORE PCBA FAQ – Engineering Answers

These three questions arrive weekly from UNIXPLORE customers in prototyping and production phases.

Question 1: Does UNIXPLORE source components directly from franchised distributors, and what happens if a part is obsolete?

Answer: Yes. UNIXPLORE maintains purchasing accounts with DigiKey, Mouser, Arrow, and LCSC for passive components. For active parts (ICs, transistors, modules), UNIXPLORE uses only franchised distributors or direct factory lines. No grey market or uncertified brokers are used. If a BOM line item is obsolete, UNIXPLORE performs a three-step process: first, searches authorized distributor back stock; second, suggests a drop-in replacement with identical pinout and electrical specs; third, presents the original customer with a written risk assessment before any substitution. For long-life industrial products, UNIXPLORE offers a lifetime buy service where the customer pre-purchases 5-10 years of estimated demand, and UNIXPLORE stores them in humidity-controlled bins with quarterly inspection.

Question 2: What functional testing does UNIXPLORE perform by default, and what tests cost extra?

Answer: By default, every UNIXPLORE PCBA receives automated optical inspection (AOI) on the SMT side, visual inspection on the THT side, and a powered “smoke test” checking for shorts, correct voltage rails, and basic oscillator function. This is included in the piece price. Extra-cost tests include: in-circuit testing (ICT) using a bed-of-nails fixture (one-time fixture fee of 250−250−800 plus 0.15−0.50perboard),fullfunctionaltestperyourscript(engineeringtimeat0.15−0.50perboard),fullfunctionaltestperyourscript(engineeringtimeat85/hour + test jig fabrication if required), boundary scan (JTAG) for BGA devices ($0.30 per board), and burn-in testing (24-168 hours at elevated temperature, cost based on chamber occupancy). UNIXPLORE always recommends functional testing for any board with a microcontroller or more than 200 components. The company provides a test specification template to first-time customers.

Question 3: What is the typical lead time from Gerber files to finished, boxed PCBA with UNIXPLORE?

Answer: For a standard double-sided SMT board with 100-300 components and no box build, UNIXPLORE ships in 15 to 18 business days. That breaks down as: 3 days for component procurement (assuming all parts are active and in distributor stock), 4 days for PCB fabrication (FR4, 1.6mm, HASL or ENIG), 2 days for stencil creation and SMT program setup, 3 days for SMT placement and reflow, 2 days for THT hand-soldering and wave soldering, 2 days for first-pass functional testing and AOI, 2 days for conformal coating (if specified) and final inspection. Adding box building (plastic or metal enclosure assembly) adds 5-7 days. Adding wire harness or cable assembly adds 3-4 days. Rush service (10 business days total for bare PCBAs) is available for a 30% premium but requires UNIXPLORE approval of component availability. Lead times start when UNIXPLORE confirms that Gerber files, BOM, and centroid data are error-free. Common delays come from missing polarity markings or incorrect footprint libraries.

How UNIXPLORE Handles the Three Hidden PCBA Failure Modes

Even a correctly soldered board can fail prematurely. UNIXPLORE designs out these three risks.

Solder Joint Creep

Thermal expansion cracks solder over time. UNIXPLORE reflow profiles are optimized per board thickness and component density.

Electrochemical Migration

Moisture plus bias voltage grows metal dendrites. UNIXPLORE applies ultraclean no-clean flux and specifies IPC Class 2 or Class 3 cleanliness standards.

Microcontroller Latch-Up

Power sequencing errors destroy ICs. UNIXPLORE adds TVS diodes and sequences power rails during test.

Getting a Free Quotation From UNIXPLORE

UNIXPLORE provides binding quotes for prototype and production quantities. Required documents:

· Gerber files (RS-274X format)

· BOM with manufacturer part numbers and quantities

· Assembly drawing or pick-and-place coordinates

· Any test specifications or special instructions

Contact UNIXPLORE to receive a response within 24 hours; please provide the following information::

· Unit pricing at target quantity (100, 500, 1000, 5000)

· One-time NRE (tooling, stencils, test jig)

· Firm lead time to Shenzhen port or door-to-door