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Mean Well NSD15-48S15 DC-DC Converter - 15W - 18~72V in 15V out 1A
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NSD15-48S15 is the 15V output model of this series: rated current 1A, rated power 15W, typical efficiency 85%.
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
OUTPUT
- DC VOLTAGE
- 15V
- RATED CURRENT
- 1A
- CURRENT RANGE
- 0.05 ~ 1A
- 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.)
- ±3.0%
- SETUP TIME
- 100ms/RATED DC INPUT at full Load
INPUT
- RATED DC INPUT
- 48VDC
- VOLTAGE RANGE
- 18 ~ 72VDC
- EFFICIENCY (Typ.)
- 85%
- 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)
- 17.25 ~ 22.5V
- 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. All parameters NOT specially mentioned are measured at 12, 48VDC input, rated load and 25℃ of ambient temperature.
- 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. Tolerance : includes set up tolerance, line regulation and load regulation.
- 4. Short circuit no more than 60 seconds.
- 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. 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. EMC filter suggestion:
- 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
Downloads
FAQ
Can I use the NSD15-48S15 for 15V industrial sensors or transmitters?
It can fit 15V industrial electronics that require a constant-voltage supply and draw up to 1A. Since the unit is rated at 15W, it is intended for lower-power 15V devices rather than larger actuator or motor loads.
Is this converter appropriate for 15V embedded control hardware in automation equipment?
Yes, if the hardware expects a regulated 15V rail and the total load stays within 1A. The compact 50.8 × 38.1 × 9.82 mm form factor also suits embedded assemblies where board space is limited.
Would the NSD15-48S15 work for low-power 15V signal-conditioning or interface modules?
It can be used for 15V signal-conditioning or interface modules when their total demand does not exceed 15W. The listed 18~72VDC input range is intended for applications where that DC source range is already available in the host system.
Can this model power 15V communications or monitoring electronics inside a control enclosure?
It can support 15V communications or monitoring electronics that operate from a constant 15V supply at up to 1A. Its 0.03 kg weight also helps in compact or weight-sensitive equipment designs.
Is the NSD15-48S15 suitable for outdoor cabinets or exposed environments?
The 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. However, no IP rating is provided in the specs, so the product data does not establish outdoor exposure resistance on its own.
How does the NSD15-48S15 compare with other 48-input models in the NSD15 family?
This version provides 15V output at 1A 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, NSD15-48S5 at 15W and 5V at 3A, and NSD15-48S12 at 15W and 12V at 1.25A.
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