Name: MEAN WELL SMU02-N series: Unregulated SIP DC/DC converter - SMU02N-05N
Brand: MEAN WELL
SKU: SMU02N-05N
Price: 10.84 USD
Availability: InStock

MEAN WELL SMU02-N series: Unregulated SIP DC/DC converter - SMU02N-05N

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Description

SMU02N-05N — Unregulated SIP DC/DC converter

The MEAN WELL SMU02N-05N is an isolated, unregulated single-output SIP4 DC/DC converter in the 2 W SMU02-N family. It accepts 21.6–26.4 V DC and provides 5 V DC at a rated 400 mA, with a 10% minimum-load requirement. It combines low no-load input current, 1.5 kV DC isolation and radiated Class B performance without additional components. Apply the model’s thermal derating and input-filter conditions.

Download MEAN WELL SMU02-N Datasheet (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

SMU02-N electrical, environmental, mechanical and packing specifications: PDF pages 77–81.

Electrical specifications

Model and output configuration	SMU02N-05N; isolated, unregulated single-output DC/DC converter in an industry-standard SIP4 package.
Output voltage	5 V DC.
Rated output current	400 mA.
Minimum load	10% of full load, corresponding to 40 mA calculated from the rated output current.
Output power and current limit	2 W series; 5 V × 400 mA corresponds to 2 W calculated from the selected voltage and current. Observe the series power ceiling and thermal derating; rounded current values do not increase the rating.
Input voltage	21.6–26.4 V DC; nominal 24 V, ±10% input range.
Input current	6 mA at no load; 97 mA at full load under the general measurement conditions. The series features low no-load input current.
Typical efficiency	86% under the general measurement conditions.
Series efficiency capability	Efficiency up to 90% across the family; use the selected model’s typical efficiency above.
Maximum capacitive load	470 µF.
Input surge limit	30 V DC for 100 ms maximum.
Input filter and recommended fuse	Internal capacitor; a 300 mA slow-blow fuse is recommended for this nominal-input model.
Output voltage accuracy	±3% maximum.
Ripple and noise	100 mVp-p maximum; measured at 20 MHz using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
Line regulation	±1.2% for a 1% input variation; measured from low line to high line at rated load.
Load regulation	8%, measured from 10% to 100% rated load.
Switching frequency	200 kHz minimum as printed in the value cell; the catalog row heading reads “Typ.”.
General measurement conditions	Unless otherwise specified: nominal 24 V DC input, rated load, 25°C and 70% RH ambient.

Protection and thermal operation

Short-circuit protection	Continuous short-circuit protection with automatic recovery.
Operating and case temperature	−40 to +105°C ambient, subject to derating; case temperature +115°C maximum.
Cooling and load derating	Natural convection: 100% load from −40 to +85°C, falling to 60% at +105°C. Follow the applicable curve between these points.
Working humidity	5–95% RH, non-condensing.
Storage conditions	−55 to +125°C; 10–95% RH, non-condensing.
Temperature coefficient	±0.05%/°C.
Soldering conditions	At 1.5 mm from the case: 3–5 seconds at 265°C maximum.
Vibration	10–500 Hz, 2 G; 10 minutes per cycle, for 60 minutes along each of the X, Y and Z axes.

Isolation, EMC and reliability

Applicable safety approvals	EAC TP TC 020/2011 approved.
Isolation withstand voltage	Input to output: 1.5 kV DC.
Isolation resistance	Input to output: 100 MΩ at 500 V DC, 25°C and 70% RH.
Typical isolation capacitance	50 pF.
EMC emission	BS EN/EN 55032 (CISPR 32): conducted N/A; radiated Class B without additional components.
ESD immunity	BS EN/EN 61000-4-2: Level 3, 8 kV air.
Radiated RF immunity	BS EN/EN 61000-4-3: Level 2, 3 V/m.
EFT and surge immunity	BS EN/EN 61000-4-4: Level 1, 0.5 kV; BS EN/EN 61000-4-5: Level 2, 0.5 kV line to line. Apply the external-input-capacitor condition below.
Conducted RF and magnetic-field immunity	BS EN/EN 61000-4-6: Level 2, 3 V rms; BS EN/EN 61000-4-8: Level 1, 1 A/m.
Conditional input filter capacitor	An external input filter capacitor is required when the module must meet BS EN/EN 61000-4-4 and BS EN/EN 61000-4-5. Note 6 attributes the suggested 470 µF / 100 V capacitor to Power Mate.
MTBF	2000 Khrs minimum, MIL-HDBK-217F at 25°C.
Manufacturer warranty	3 years.

Mechanical details, installation and packing

Dimensions and material	11.7 × 7.5 × 10.2 mm (L × W × H); catalog reference 0.46 × 0.3 × 0.40 inch. Non-conductive black plastic, UL 94 V-0 rated.
Pin assignment	Pin 1: −Vin; pin 2: +Vin; pin 3: −Vout; pin 4: +Vout. Follow the numbered bottom view and top-view PCB footprint.
Lead and mounting geometry	Lead extension: 3.81 mm; pin pitch: 2.54 mm; lead cross-section: 0.50 × 0.30 mm. Bottom-view edge-to-first-pin reference: 2.04 mm; pin-row offset: 1.2 mm.
PCB footprint	Top view on a 2.54 mm grid; holes Ø0.8 mm with +0.2 / −0 mm tolerance.
Mechanical tolerances	General dimensions x.x: ±0.5 mm; x.xx: ±0.25 mm. The drawing specifies pin tolerance ±0.05 mm.
Packing quantities and gross masses	42 pieces per tube, tube gross weight 75 g; 160 tubes / 6,720 pieces per carton, carton gross weight 15.4 kg.
Packaging dimensions	Tube length: 520 mm; tube-profile references: 4.2, 11, 9.1 and 15 mm. Carton: 620 × 230 × 230 mm. These are packaging dimensions.
Per-unit mass	1.3 g as the catalog packing reference per unit, not a measured net or shipping weight.
Typical applications	Telecom/datacom systems, wireless networks, industrial control, automation, instruments, analyzers, detectors and data switches.

Installation and system verification

Complete-system EMC verification	Verify EMC with the converter installed in the final equipment and connected to a representative load. Wiring, assembly and the application affect the result. Follow the model's specified EMC conditions and any required external components; the linked EMI testing guidance does not certify the finished equipment.