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Mean Well

Mean Well SD-350C-48 DC-DC Converter - 350W - 36~72V in 48V out 7.3A

2:1 wide input range1.5~2KVAC isolation by models
SKU SD-350C-48
$110.13 USD
Shipping calculated at checkout.
In stock
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Overview

SD-350C-48 is the 48V output model of this series: rated current 7.3A, rated power 350.4W, typical efficiency 82%.

Features

  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • 1500VAC I/O isolation
  • Forced air cooling by built-in DC Fan
  • 100% full load burn-in test
  • 24V and 48V input voltage design refer to LVD
  • 2 years warranty

Specifications

SD-350C-48Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
7.3A
CURRENT RANGE
0 ~ 7.3A
RATED POWER
350.4W
RIPPLE & NOISE (max.)Note.2
200mVp-p
VOLTAGE ADJ. RANGE
43 ~ 53VDC
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
300ms, 50ms at full load

INPUT

VOLTAGE RANGE
36 ~ 72VDC
EFFICIENCY (Typ.)
82%
DC CURRENT (Typ.)
9.0A/48V
INRUSH CURRENT (Typ.)
45A/48VDC

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Shut down o/p voltage, re-power on to recover
OVER VOLTAGE
53 ~ 65V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.
-20 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
EAC TP TC 004 approved, design refer to AS/NZS 62368.1
WITHSTAND VOLTAGE
I/P-O/P:1.5KVAC 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 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
1705.6K hrs min. Telcordia SR-332 (Bellcore) ; 263.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
215*115*50mm (L*W*H)
PACKING
1.1Kg; 12pcs/14.4Kg/0.9CUFT
Test conditions and notes5
  1. 1. All parameters NOT specially mentioned are measured at 24,48,96VDC 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. 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 https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  5. 5. 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

SD-350C-48 Mechanical Specification
Mechanical Specification
SD-350C-48 Block Diagram
Block Diagram
SD-350C-48 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SD-350C-48 for 48V industrial networking or telecom equipment?

Yes, it provides a constant 48V output rated for 7.3A and 350.4W from a 36-72V input range. That suits 48V equipment as long as the connected load stays within 7.3A and 350.4W.

Is the SD-350C-48 a fit for 48V embedded systems or communication hardware on a 36-72V bus?

It is designed for 36-72V input and regulated 48V output, so it matches 48V embedded or communications loads that need constant voltage. Capacity is limited to 350.4W total and 7.3A output current.

Can this model power multiple 48V devices in an automation enclosure?

It can power multiple 48V loads if their combined demand remains at or below 7.3A and 350.4W. Because the output is constant voltage at 48V, it is intended for 48V equipment rather than variable-output applications.

Can the SD-350C-48 be used in cold or hot industrial locations?

The specified operating temperature range is -20°C to +60°C. No IP rating is listed, so the temperature range is defined but the dust and water protection level is not, which means exposed outdoor use is not established by these specs.

What are the main SD-350C series alternatives to the SD-350C-48?

The listed SD-350C variants are SD-350C-12 at 330W, 12V, 27.5A; SD-350C-24 at 350.4W, 24V, 14.6A; SD-350C-48 at 350.4W, 48V, 7.3A; and SD-350C-5 at 300W, 5V, 60A. This model is the 48V option in that group and carries the 7.3A output rating.

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Mean Well SD-350C-48 DC-DC Converter - 350W - 36~72V in 48V out 7.3A
Mean Well

Mean Well SD-350C-48 DC-DC Converter - 350W - 36~72V in 48V out 7.3A

$110.13 USD

SD-350C-48 is the 48V output model of this series: rated current 7.3A, rated power 350.4W, typical efficiency 82%.

Features

  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • 1500VAC I/O isolation
  • Forced air cooling by built-in DC Fan
  • 100% full load burn-in test
  • 24V and 48V input voltage design refer to LVD
  • 2 years warranty
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