Custom Alternative to MeanWell Power Supplies
Need a MeanWell-equivalent built for your product, not off the shelf? P&A International engineers, prototypes and delivers drop-in alternatives to MeanWell (and other brand) power supplies — enclosed, open-frame, DIN-rail and external — matched to your voltage, footprint, efficiency and cost targets.
As an engineering-led contract manufacturer founded as an engineering consultancy, we assign one dedicated engineer to reverse-engineer or improve the reference part and deliver qualified samples in 10–15 working days, then scale into volume through our vetted partner-factory network, where every supplier is ISO 9000 certified or better.
consultancy + manufacture
per project, end-to-end
qualified samples with test data
every supplier certified or better
DoE VI, 62368-1, 60601
Custom alternatives we build
Drop-in enclosed alternatives
Form-fit-function equivalents to enclosed brand supplies, optimised to your spec and cost.
Open-frame & DIN-rail
Industrial open-frame and DIN-rail alternatives for embedding in equipment.
Desktop & external adapters
Desktop and wall-plug external alternatives with the outputs and protections you need.
Improved custom designs
Higher-efficiency or smaller-footprint redesigns that match or exceed the original spec.
Prefer a ground-up design or an on-board converter? See our custom power supplies and switch-mode (SMPS) design.
Engineering capability
- Topology selection — flyback, forward, LLC resonant, with PFC above ~75 W
- Magnetic design (transformer, choke) for efficiency, regulation and thermal performance
- Multi-output, adjustable, remote-sense and PMBus / digital-control designs
- Efficiency engineering to DoE Level VI / CoC Tier 2 and low standby power
- Safety & EMC — IEC/UL 62368-1, medical 60601, CE/UKCA, EMC class B
- Protections designed in — OVP, OCP, OTP, SCP, hold-up and inrush control
- Thermal, mechanical and ingress-protection (IP) design
- One dedicated engineer; qualified samples with full test data before volume
At a glance
| Types | External adapter / enclosed / open-frame / on-board SMPS / USB-PD |
| Input | Universal 90–264 VAC, 50/60 Hz, or DC input |
| Output | Single or multi-output; built to your V/A per rail |
| Efficiency | DoE Level VI / CoC Tier 2; low no-load power |
| Safety | IEC/UL 62368-1, 60601 (medical), CE/UKCA |
| Prototype | 10–15 working days to qualified samples |
| Quantities | One-off prototypes to high volume |
| Quality | Every supplier in our network is ISO 9000 certified or better |
Why engineers & buyers choose PA
For design engineers
A true design partner — one dedicated engineer reverse-engineers the reference part, then optimises topology, magnetics, efficiency and protections. You get a form-fit-function match or an improvement, designed to your envelope and safety class.
For purchasing
Low-risk scalability and supply security — predictable 10–15-day prototypes, flexible MOQ, target-cost DFM, a single point of contact, and a vetted ISO 9000+ partner network managed end-to-end by P&A. No single-source brand dependency.
3 easy steps to get started
Send us your spec
Send input range, outputs, efficiency and safety targets. One dedicated engineer reviews it and confirms the design with you.
Proposed design & quote
You receive a proposed design and indicative pricing — typically within 48 hours — to review and refine together.
Samples & production
Qualified samples with full test data in 10–15 working days; on approval we scale into volume through our partner network.
Applications
Industrial automation & instrumentation · medical & laboratory equipment · LED lighting & signage · consumer electronics · networking & telecoms · IoT & embedded · e-mobility.
Explore related services: custom power supplies, switch-mode (SMPS) design, electronics contract manufacturing and wiring harness & cable assembly.
Specifying your custom alternative
Send the reference part and your targets — a few decisions shape the equivalent design:
| Form factor | External desktop/wall adapter for portable gear; enclosed for industrial; open-frame to embed; on-board SMPS where the converter lives on your PCB. |
| Topology | Flyback for low-to-mid power; forward / LLC resonant for higher power and efficiency; add PFC above ~75 W. |
| Efficiency | Specify DoE Level VI / CoC Tier 2 and no-load power for external units — it drives topology, magnetics and thermal design. |
| Safety class | IEC/UL 62368-1 for ITE/AV, 60601 for medical; creepage, clearance and isolation built to class. |
| Protections | Define OVP, OCP, OTP, SCP and hold-up time up front so they are designed in, not bolted on. |
What to send us for a fast, accurate quote
The more of this you can share, the quicker we can return a proposed design and price:
- Input voltage range and frequency (or DC input)
- Output voltage(s), current/wattage per rail, regulation and ripple targets
- Single or multi-output; adjustable, remote-sense or digital-control needs
- Efficiency target (DoE VI / CoC Tier 2) and standby-power limit
- Safety and EMC standards (62368-1, 60601, CE/UKCA, EMC class)
- Protections, hold-up time, inrush and isolation requirements
- Connectors, plug type, mechanical envelope, cooling and IP rating
- Any MeanWell or other reference part, target cost and annual volume
Send the MeanWell or other reference part number or a sample — our engineer will design a drop-in equivalent or an improved alternative to your specification.
📄 Download the power-supply RFQ checklist (PDF)
MeanWell® is a trademark of its respective owner. P&A International is not affiliated with or endorsed by MeanWell — we design custom-engineered alternatives to your specification.
Get a quote
Send the reference part number (or a sample) plus your outputs and targets and one dedicated engineer will reply — typically within 48 hours — with a proposed design and indicative pricing.
One dedicated engineer reviews every enquiry and replies with a proposed design and indicative pricing. Your details are used only to respond to your enquiry. Prefer email? support@pa-international.com.au