Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well SP-75-48 Power Supply 75W 48V 1.6A
Overview
SP-75-48 is the 48V output model of this series: rated current 1.6A, rated power 76.8W, typical efficiency 83%.
Features
- Universal AC input / Full range
- Built-in active PFC function, PF>0.93
- Protections: Short circuit / Overload / Over voltage
- Built-in constant current limiting circuit
- Low profile: 33mm thickness
- LED indicator for power on
- 100% full load burn-in test
- Fixed switching frequency at PFC:67KHz PWM:134KHz
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 48V
- RATED CURRENT
- 1.6A
- CURRENT RANGE
- 0 ~ 1.6A
- RATED POWER
- 76.8W
- RIPPLE & NOISE (max.)Note.2
- 100mVp-p
- VOLTAGE ADJ. RANGE
- 45.6 ~ 52.8V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE TIME
- 800ms, 60ms at full load
- HOLD UP TIME (Typ.)
- 36ms at full load
INPUT
- VOLTAGE RANGENote.5
- 85 ~ 264VAC 120 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- POWER FACTOR (Typ.)
- PF>0.93/230VAC 0.96/115VAC at full load
- EFFICIENCY (Typ.)
- 83%
- AC CURRENT (Typ.)
- 1.3A/115VAC 0.7A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 45A/230VAC
- LEAKAGE CURRENT
- <2mA / 240VAC
PROTECTION
- OVERLOAD
- 105 ~ 150% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 55.2 ~ 64.8V Protection type : Shut down o/p voltage, re-power on to recover
FUNCTION
- REMOTE CONTROL(OPTION)
- CN3:4 ~ 10VDC POWER OFF, <0 ~ 0.8VDC POWER ON
ENVIRONMENT
- WORKING TEMP.
- -10 ~ +60℃ (Refer to output load derating curve)
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -20 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.05%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- UL60950-1 approved
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to EN55032 (CISPR32) Class B,EN61000-3-2,-3
- EMC IMMUNITY
- Compliance to EN61000-4-2,3,4,5,6,8,11; ENV50204, EN55024, light industry level, criteria A
OTHERS
- MTBF
- 208.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 179*97*33mm (L*W*H)
- PACKING
- 0.58Kg; 20pcs/12Kg/0.72CUFT
Test conditions and notes5
- 1. All parameters NOT specially mentioned are measured at 230VAC 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 0.1uf & 47uf parallel capacitor.
- 3. Tolerance : includes set up tolerance, line regulation and load regulation.
- 4. 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 360mm*360mm 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 http://www.meanwell.com)
- 5. Derating may be needed under low input voltages. Please check the derating curve for more details.
Technical drawings
Downloads
Datasheet1
FAQ
Can I use the SP-75-48 for lower-power 48V telecom or network equipment?
Yes, this model provides a constant voltage 48V output rated for 76.8W and 1.6A. It is suited to 48V equipment that stays within that current and power envelope.
Is the SP-75-48 suitable for 48V industrial control or communication devices?
It can support 48V DC devices that need a fixed 48V supply and draw no more than 1.6A. The relatively low current rating makes it a better fit for lighter 48V loads rather than high-power 48V systems.
Can this power supply run a 48V embedded or monitoring subsystem?
Yes, if the subsystem is designed for 48V constant voltage and total demand remains at or below 76.8W. The 85-264VAC input also helps when the AC source varies across facilities.
Is the SP-75-48 rated for outdoor installations?
The operating temperature range is -10°C to +60°C. No IP rating is shown in the provided specs, so outdoor weather exposure is not confirmed from this data.
When is the SP-75-48 the right size for a 48V application?
It is the right size when the 48V load stays within 1.6A and 76.8W total. For 48V systems above 1.6A, a higher-capacity 48V model would be the better choice.
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