MANUFACTURER DOSSIER
Junda Electronics
佛山市顺德区骏达电子有限公司 · Guangdong
A Shunde manufacturer with a single-sided production focus.
Foshan Shunde Junda Electronics Co., Ltd. · 佛山市顺德区骏达电子有限公司 dates its business to 1983. Its introduction centres on single-sided rigid printed circuit boards, with separate double-sided, carbon-ink and aluminium-base product ranges. This is an appliance and control-board sourcing profile; the reviewed catalogue does not establish an HDI or high-layer-count production range.
The manufacturer names two bases: Huanglian and Fu'an. The published contact address is No. 1 Huangzhong Third Road, Huanglian New Industrial Development Area, Leliu, Shunde, Foshan, Guangdong. Agree the supplying base and contracting entity before approving the process or delivery plan.
A Guangdong tax-authority article displayed as published on 23 January 2025 independently names the same company, describes its two bases and discusses supply-chain digitalisation in the local appliance industry. It provides dated company context, rather than a quality audit of the boards offered below.
Scale and scheduling are different questions
The undated company page reports more than 30,000 m² at Huanglian, more than 50,000 m² at Fu'an and annual capacity of 6 million m². The 2025 government article also reports the annual figure. These are published scale figures, not today's available machine hours or an order reservation.
For repeat appliance programmes, ask how material reservations, forecast changes, tooling revisions and lot traceability move between your planning system and the assigned base. Obtain a written first-order and repeat-order schedule; this catalogue publishes no assured lead-time window.
Single-sided boards: start with the substrate and profiling method.
Junda's single-sided range lists audio, air-conditioning and household-appliance applications. The source provides a family-level process table and four example photographs; it does not identify individual model numbers. The table should guide an engineering review, not be treated as the specification of every pictured panel.
- Published processing envelope
- 650 × 550 mm
- Substrate families
- XPC, FR-1, CEM-1 and FR-4
- Board thickness range
- 0.4–3.2 mm
- Hole processes
- CNC drilling: φ0.3 ±0.05 mm
Die punching: φ0.8 ±0.1 mm - Surface routes listed
- OSP, electroplated nickel, immersion nickel, electroplated gold, immersion gold and HASL
Release the power and assembly interface
Choose the actual laminate grade and copper, rather than allowing a generic “FR-4” or “CEM-1” substitution. Add insulation, creepage/clearance, mounting geometry and operating-temperature requirements appropriate to your assembly.
Drilling and punching are different routes with different published hole values. State the drawing's finished-hole requirement, permissible burrs and tool-controlled outline; the source's drill diameter is not a confirmed finished plated-hole value.
For high-volume panels, release rails, tooling holes, fiducials, break-off geometry and the delivered panel revision together with the circuit data.
Double-sided boards have their own material and size window.
The double-sided source names computer, communications, medical-instrument and industrial-power applications. Those application labels do not establish a medical or automotive qualification programme.
- Processing envelope
- 620 × 500 mm
- Substrate families
- CEM-3 and FR-4
- Board thickness
- 0.4–2.5 mm
- CNC drill value
- φ0.3 mm; finished-hole size and tolerance are not stated
- Listed finishes
- OSP, electroplated nickel, immersion nickel, electroplated gold, immersion gold and HASL
Specify the through-hole acceptance
Confirm how the required interconnection is produced, the finished plated-hole dimensions, wall copper and the electrical-test programme. The published family table does not give a plated-hole reliability test or a numeric impedance tolerance.
For connector or power interfaces, distinguish contact gold thickness and plated areas from immersion gold. “Gold” alone is not an acceptance criterion. For a communications design, send the actual stack and impedance requirement for engineering assessment rather than assuming the application label guarantees it.
A switching surface needs a contact specification.
The carbon-board catalogue lists remote controls, calculators and telephones. Its process envelope is 500 × 500 mm, with 0.8–1.6 mm substrate thickness and XPC, FR-1, CEM-1, CEM-3 or FR-4 families. The hole entry is φ0.8 ±0.1 mm, but the table does not name the drilling/punching method or finished-hole basis.
Define the functional surface
Send the carbon artwork separately from copper and solder mask. Identify the mating keypad/contact, contact geometry, printing registration, ink grade, cured thickness, resistance acceptance and required actuation-life test.
The website does not publish an ink datasheet, resistance limit or switching-life result. These are order-review questions, not numbers to infer from the photographs.
Keep finish and ink acceptance separate
The family table lists OSP and nickel/gold routes. Agree where each finish applies and how the carbon contact interacts with the mating component. It does not list HASL in this table; the single-sided family's finish list has not been copied across.
Specify the thermal dielectric, not just the metal base.
- Processing envelope
- 500 × 500 mm
- Thickness range
- 0.5–4.0 mm
- Hole processes
- CNC drilling: φ0.3 ±0.05 mm
Punching: φ0.8 ±0.1 mm - Listed finishes
- OSP and HASL
A unit is missing from the source
The aluminium material rows label thermal conductivity “1.0” and “2.0” without a unit, grade or test method. This profile does not convert those labels into a W/m·K rating. Obtain the supplier's actual dielectric specification and measurement basis.
Turn the lighting requirement into a construction
The manufacturer's applications include LED, stage lighting and automotive headlights. For your board, specify aluminium thickness, dielectric grade/thickness, copper, isolation voltage, outline and mounting flatness. A headlight application label does not establish IATF certification or vehicle-programme approval.
Review the heat path from component pad through the dielectric and base into the mounting interface. Request construction-specific thermal and electrical acceptance; no thermal performance has been derived from the shape of a catalogue photograph.
Prepare a repeatable appliance-board order.
- Assign the route and base. Single-sided, double-sided, carbon or aluminium; contracting entity, supplying site and any external process.
- Release the construction. Laminate grade, copper, thickness, finished holes, finish and mechanical/panel drawing.
- Agree the family-specific test. Netlist test and hole plating for two-sided boards; carbon contact acceptance; dielectric/thermal/isolation criteria for aluminium.
- Close production planning. Quantity, forecast, material reservation, tooling ownership, revisions, delivery lots and a written schedule.
- Match current qualification documents. Legal name, base address, scope, holder, applicable board construction and validity dates.
The official contact page publishes jd@sdjunda.cn for business and sdjunda@vip.163.com for prototype/R&D. Address publication was checked; mailbox control was not tested. The supplier self-recommendation mailbox is a different route and is not presented as buyer engineering contact.
Prepare a Junda fabrication brief →Qualification documents: distinguish claims and dates
The company introduction mentions UL, CQC, ISO 9001 and ISO 14001. The reviewed qualification gallery displays awards and historical recognitions; it does not supply a current UL holder/board-construction record or current ISO scope. No certification badge has been inferred from those introductory claims.
Read the historical recognitions in context
The cleaner-production plaque is valid through March 2024. The mechanical safety-standardisation certificate is dated September 2021 with a three-year validity. The Guangdong specialised-enterprise plaque explicitly runs from 18 January 2023 to 17 January 2026. These are historical copies at the review date, not current compliance certificates.
Other displayed recognition dates include a 2020 high-tech plaque, a 2019 industry ranking issued in August 2020, 2019–2020 contract-credit recognition issued in June 2021 and a 2020 manufacturing award. Customer-award photographs are historical company-gallery material; they are not an endorsement of this listing or a current purchase commitment.
What the government article supports
The Guangdong tax site reproduces a China Tax magazine article with a displayed publication date of 23 January 2025. It names Junda, its two manufacturing bases and appliance supply-chain digitalisation. The article quotes company management about performance changes; those quotations have not been promoted into independent current yield or delivery guarantees.
Sources behind this profile
Individually researched 9 October 2026. Four separate process-table images, sixteen corresponding board photographs, factory-gallery images, qualification copies and the original government article were reviewed. Product-family parameters remain distinct; catalogue photos have no invented model IDs. Drill/punch diameters are not entered as finished-hole limits, and the unitless thermal labels remain unconverted.
- ManufacturerCompany history, single-sided focus and reported scale ↗
- ManufacturerHuanglian and Fuan production-base gallery ↗
- ManufacturerSingle-sided catalogue and its process-table image ↗
- ManufacturerDouble-sided catalogue and separate processing window ↗
- ManufacturerCarbon-ink catalogue and contact-board process table ↗
- ManufacturerAluminium-base catalogue; thermal labels have no printed unit ↗
- ManufacturerNine qualification/recognition photographs and dates ↗
- ManufacturerHistorical customer-award gallery ↗
- ManufacturerFactory address and separate business, R&D and supplier contacts ↗
- GovernmentGuangdong tax authority: dated company and supply-chain context, displayed 23 January 2025 ↗