Compact K18N-UP200 Series 200W switching power supply with 5VDC output, 40A rated current, 0–40A output range, and a slim 127 × 82 × 45mm enclosure. Featuring 90–264VAC universal AC input, built-in active PFC, efficiency above 88%, and short circuit, overload, over-voltage, and over-temperature protection, it is ideal for compact industrial equipment, control systems, and embedded power applications.

Input Current

1.2A @ 220V AC

Rated Input Voltage

90-264V AC

Output Rated Current

40A

Output Voltage

+5V

Rated Power

200W

Output Adjustable Range

±10%

Output Accuracy

±1%

Efficiency @220Vac

＞88%

Size/Weight

127*82*45mm(L*W*H)/0.6Kg

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Description

30-Second Fit Check

Output class: 5VDC, rated 40A (200W).
Input: 90–264VAC, 47–63Hz.
PFC: active PFC listed; PF >0.99@110V and >0.95@220V.
Trim: ±10% DC voltage adjustment.
Footprint: 127×82×45mm; listed weight 0.6kg.

What It Is + Why It Matters

Compact AC-DC SMPS for a 5V high-current bus in embedded and industrial control designs.
Active PFC can improve power factor and reduce harmonics on the AC input side (helpful in multi-supply cabinets).
High current in a small package: plan copper and distribution early to avoid voltage drop.

Key Specs

Rated output: 5V, 40A; 200W.
Ripple & noise: 100mVp-p.
Efficiency: >88% @220VAC.
Accuracy/regulation: ±1% tolerance; line ±0.5%; load ±0.5%.
Inrush / leakage: 20A (115V) / 40A (230V) cold start; leakage <0.75mA @240VAC.
Environment: -20~50°C, 10~90%RH non-condensing.

Integration & Controls

Use the ±10% trim range to compensate for distribution drop (within your system margin).
Mechanical integration: confirm mounting holes and clearance using the outline drawing.
Hold-up timing listed: 500ms / 50ms / 20ms (setup/rise/hold).

Best For / Not For

Best for: embedded systems, industrial control rails, digital circuits needing up to 40A on 5V.
Not for: 5V applications needing ripple lower than 100mVp-p or extended temperature beyond the listed -20~50°C range.

Typical Applications

Embedded systems and digital circuits
Industrial control electronics
Test/bench fixtures requiring 5V high current
Equipment-level 5V distribution

Selection Checklist

Confirm continuous + peak current stays within 40A.
Verify mains: 90–264VAC, 47–63Hz.
Confirm ripple tolerance: 100mVp-p.
Plan wiring for high current: short runs, adequate copper, solid returns.
Confirm thermal conditions within -20~50°C operating range.

RFQ Quick Checklist: quantity, delivery date, AC input, steady/peak load profile, mechanical constraints.
Note: final compliance and performance depend on end-product design and verification testing.

Reliability & Protections

Overload: 110–200% hiccup, auto recover.
Short circuit: listed protection.
Over-voltage: 6–7V (model listing).
Over-temperature: listed protection.
Safety/EMC standards (listed): EN62368-1, EN60950-1, GB4943; EMC: EN55015, EN61000-3-2, EN61000-3-3.