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Mean Well

Mean Well NSD15-48S5 DC-DC Converter - 15W - 18~72V in 5V out 3A

SKU NSD15-48S5
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Overview

NSD15-48S5 is the 5V output model of this series: rated current 3A, rated power 15W, typical efficiency 81%.

Features

  • Wide 4:1 DC input range
  • Protections: Short circuit / Overload / Over voltage
  • 1500VDC I/O isolation
  • Built-in EMI filter
  • Cooling by free air convection
  • Output voltage trimming function
  • Built-in remote ON-OFF control
  • 100% full load burn-in test
  • Low cost
  • High reliability
  • 2 years warranty

Specifications

NSD15-48S5Specifications from the official datasheet (2024-10-30 edition)

OUTPUT

DC VOLTAGE
5V
RATED CURRENT
3A
CURRENT RANGE
0.15 ~ 3A
RATED POWER
15W
CAPACITIVE LOAD (max.)
3300uF
RIPPLE & NOISE (max.)Note.2
75mVp-p(25% ~ 100% load)
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±1.0% at 10% ~ 100% load
LOAD REGULATION
±1.0% at 10% ~ 100% load
TRIM OUTPUT (Typ.)
±5.0%
SETUP TIME
100ms/RATED DC INPUT at full Load

INPUT

RATED DC INPUT
48VDC
VOLTAGE RANGE
18 ~ 72VDC
EFFICIENCY (Typ.)
81%
DC CURRENT
0.4A/48VDC
SHUTDOWN IDLE CURRENT
20mA

PROTECTION

OVERLOAD
Above 105% rated output power Protection type : Over power limiting, recovers automatically after fault condition is removed
OVER VOLTAGE(CLAMP)
5.5 ~ 7.5V
SHORT CIRCUITNote.4
Recovers automatically after fault condition is removed

FUNCTION

ON/OFF CONTROL
Logic "1" or open circuit : ON Logic "0" or short to PIN2 : OFF

ENVIRONMENT

WORKING TEMP.
-25 ~ +70℃
WORKING HUMIDITY
0% ~ 95% RH max.
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 0 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0~50℃)

SAFETY & EMC (Note 5)

SAFETY STANDARDS
UL62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
ISOLATION VOLTAGE
I/P-O/P:1.5KVDC
ISOLATION RESISTANCE
I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 (CISPR32) Class B, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,6,8; BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
12058.3K hrs min. Telcordia SR-332 (Bellcore) ; 1734.0K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
50.8*38.1*9.82mm (2"*1.5"*0.387") (L*W*H)
PACKING
0.03Kg; 180pcs/6.4Kg/0.94CUFT
Test conditions and notes8
  1. 1. All parameters NOT specially mentioned are measured at 12, 48VDC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Short circuit no more than 60 seconds.
  5. 5. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 230mm*230mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  6. 6. Derating to 80% load is needed for NSD15-48S series at 18Vdc input voltage. Full output wattage can be acquired when the input voltage is higher than 20Vdc.
  7. 7. EMC filter suggestion:
  8. 8. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

NSD15-48S5 Mechanical Specification
Mechanical Specification
NSD15-48S5 Block Diagram
Block Diagram
NSD15-48S5 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the NSD15-48S5 for 5V industrial single-board computers or embedded controllers?

Yes, if the controller needs a constant 5V supply and draws no more than 3A. With 15W output capacity, this model suits 5V logic and controller loads up to that 3A limit.

Would this converter work for 5V USB-class electronics or monitoring devices inside industrial equipment?

It can power 5V electronics that need a regulated rail, provided the total load stays within 3A and 15W. That makes it suitable for compact monitoring, interface, or processing hardware that runs from a 5V bus.

Is the NSD15-48S5 a good fit for 5V PLC accessories or HMI support electronics?

It can be, as long as the connected accessories are designed for constant-voltage 5V input and remain within the 3A output limit. The small 50.8 × 38.1 × 9.82 mm package also helps when integrating support electronics into tight control enclosures.

Can I use this for multiple low-voltage 5V loads in an automation panel?

This model delivers up to 3A at 5V. It can support multiple 5V loads if their combined demand stays within the 15W total output rating.

Is the NSD15-48S5 suitable for cold outdoor cabinets or hot enclosed systems?

The listed working temperature range is -25°C to +70°C (storage -40°C to +85°C), with load derating at higher ambient temperatures per the derating curve. The specs do not include an IP rating, so environmental sealing or direct outdoor exposure cannot be confirmed from the product data alone.

How does the NSD15-48S5 differ from the other 48-input NSD15 models?

NSD15-48S5 provides 5V output at 3A with a 15W rating. The other 18~72VDC input siblings on the sheet are NSD15-48S3 at 12.375W and 3.3V at 3.75A, NSD15-48S12 at 15W and 12V at 1.25A, and NSD15-48S15 at 15W and 15V at 1A.

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Mean Well NSD15-48S5 DC-DC Converter - 15W - 18~72V in 5V out 3A
Mean Well

Mean Well NSD15-48S5 DC-DC Converter - 15W - 18~72V in 5V out 3A

Log in to see price

NSD15-48S5 is the 5V output model of this series: rated current 3A, rated power 15W, typical efficiency 81%.

Features

  • Wide 4:1 DC input range
  • Protections: Short circuit / Overload / Over voltage
  • 1500VDC I/O isolation
  • Built-in EMI filter
  • Cooling by free air convection
  • Output voltage trimming function
  • Built-in remote ON-OFF control
  • 100% full load burn-in test
  • Low cost
  • High reliability
  • 2 years warranty
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