About TECircuit Found: TECircuit has been operating since 2004.
Location: An electronics manufacturing service(EMS) provider located in
Shenzhen China.
Item: Customizable EMS PCB, offers a full range of one-stop shop services.
Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.
Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.
Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly
production capacity : 100,000 m2 PCBA Applications - Personal Electronics and Small Item Sanitization: The PCBA automates the disinfection cycle for frequently touched
personal items such as smartphones, watches, earphones, keys, and
masks. It provides a hands-free, chemical-free method to reduce
germs on surfaces.
- Infant Care and Toy Sterilization: Used to sanitize baby bottles, pacifiers, teething toys, and
small plastic toys. The PCBA ensures a controlled, timed UV-C
exposure to help eliminate bacteria and molds without using heat or
chemicals, which is crucial for infant safety.
- Travel and Portable Hygiene: Serves as a compact solution for travelers to sanitize personal
items like toothbrushes, razors, and jewelry in hotel rooms,
addressing hygiene concerns while on the go.
- Medical and Dental Instrument Sanitation (Non-Critical): Employed in clinics or home-care settings for the supplementary
sanitation of non-critical, heat-sensitive items such as dental
retainers, nail clippers, or certain small tools, following proper
medical guidelines.
- Beauty and Personal Care Tool Maintenance: Provides a method for sanitizing makeup brushes, razors,
tweezers, and hair clippers, helping to maintain tool hygiene and
prevent skin issues caused by bacterial buildup.
- Household and Office Use: Offers a convenient way to disinfect shared or high-touch items
in common areas, such as remote controls, stationery, or office
badges, contributing to a cleaner environment.
PCBA Features - UV-C LED Driver and Control Circuitry: The PCBA integrates a constant-current driver circuit
specifically designed to power and control high-output UV-C LEDs.
This circuit ensures the LEDs operate at their optimal wavelength
(typically 260-280nm) and intensity for effective germicidal action
while managing their lifespan.
- Precision Timing and Cycle Management Microcontroller: At its heart, a microcontroller manages the entire sanitization
cycle. It controls the exact duration of UV exposure (e.g., 3, 5,
or 10 minutes), manages user-selected modes, and drives the display
or indicator lights to show cycle status and completion.
- Safety Interlock and Lid Sensor System: A critical safety feature involves a sensor (often a reed switch
or hall-effect sensor) that detects if the box's lid is securely
closed. The PCBA's logic is designed to immediately cut power to the UV-C LEDs if the lid is opened during a cycle, preventing accidental
exposure to harmful UV-C radiation.
- Reflective Chamber Optimization: The PCBA design often includes simple circuits to control
optional supplemental LEDs (like white light for visibility) within
a chamber lined with reflective aluminum to maximize UV light
distribution and ensure even exposure to all item surfaces.
- User Interface and Status Indication: Features interfaces for control buttons (power, timer selection)
and drivers for LEDs or a simple digital display. It provides clear
visual feedback about the operating mode, cycle countdown, and
safety lock status.
- Advanced Power Management (PMIC): Utilizes a Power Management IC (PMIC) to efficiently handle power
conversion from an AC adapter or a built-in battery (for portable
models). It provides stable voltage to the microcontroller and the
high-current UV-LED driver, often incorporating charging management
for battery-powered units.
- Durable and Safe Enclosure Integration: The PCBA is designed to fit securely within a light-sealed
enclosure. Its layout considers the placement of safety sensors and
is constructed with materials resistant to prolonged UV exposure to
ensure long-term reliability.
FAQ Question 1: What is needed for a quotation?
Answer:
PCB: QTY, Gerber file, and Technical Requirements( material/surface
finish treatment/copper thickness/board thickness,...)
PCBA: PCB information, BOM,(Testing documents...)
Q2: What file formats do you accept for production?
Answer:
PCB Gerber file
BOM list for PCB
Test method for PCBA
Q3: Are my files safe?
Answer:
Your files are held completely safe and secure. We protect the IP
for our customers in the whole process. All documents from
customers are never shared with any 3rd parties.
Q4: What is the shipment method?
Answer:
We can offer FedEx /DHL / TNT / UPS for shipment. Also, customer
provided shipment method is acceptable.
Q5: What is the payment method?
Answer:
Telegraphic Transfer in advance (Advance TT, T/T), PayPal is
acceptable. PCB & PCBA Description | PCB Layers | 1-42 layers | | PCB Materials | CEM1, CEM3, Rogers, FR-4, High Tg FR-4, Aluminum Base, Halogen Free | | Maximum Board Size | 620mm × 1100mm | | Certification | RoHS Directive-Compliant | | Board Thickness | 1.6 ±0.1mm | | Outer Layer Copper Thickness | 0.5-5oz | | Inner Layer Copper Thickness | 0.5-4oz | | Maximum Board Thickness | 6.0mm | | Minimum Hole Size | 0.20mm | | Minimum Line Width/Space | 3/3mil | | Minimum Solder Mask Pitch | 0.1mm (4mil) | | Plate Thickness and Aperture Ratio | 30:1 | | Minimum Hole Copper | 20µm | | Hole Diameter Tolerance (PTH) | ±0.075mm (3mil) | | Hole Diameter Tolerance (NPTH) | ±0.05mm (2mil) | | Hole Position Deviation | ±0.05mm (2mil) | | Outline Tolerance | ±0.05mm (2mil) | | PCB Solder Mask Colors | Black, White, Yellow | | PCB Surface Finishes | HASL Lead-free, Immersion ENIG, Chemical Tin, Flash Gold, OSP, Gold
Finger, Peelable, Immersion Silver | | Legend Color | White | | Electrical Testing | 100% AOI, X-ray, Flying Probe Test | | Outline Processing | Routing and Scoring/V-cut | | Inspection Standard | IPC-A-610 Class II | | Certificates | UL (E503048), ISO9001, ISO14001, IATF16949 | | Outgoing Reports | Final Inspection, Electrical Test, Solderability Test, Micro
Section Analysis |
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