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Mean Well

Mean Well SD-350B-5 DC-DC Converter - 280W - 19~36V in 5V out 57A

2:1 wide input range1.5~2KVAC isolation by models
SKU SD-350B-5
$110.14 USD
Shipping calculated at checkout.
In stock
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Overview

SD-350B-5 is the 5V output model of this series: rated current 57A, rated power 285W, typical efficiency 74%.

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-350B-5Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
5V
RATED CURRENT
57A
CURRENT RANGE
0 ~ 57A
RATED POWER
285W
RIPPLE & NOISE (max.)Note.2
100mVp-p
VOLTAGE ADJ. RANGE
4.5 ~ 5.5VDC
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
300ms, 50ms at full load

INPUT

VOLTAGE RANGE
20 ~ 36VDC
EFFICIENCY (Typ.)
74%
DC CURRENT (Typ.)
14.4A/24V
INRUSH CURRENT (Typ.)
C:45A/48VDC D:45A/96VDC

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Shut down o/p voltage, re-power on to recover
OVER VOLTAGE
5.75 ~ 6.75V 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-350B-5 Mechanical Specification
Mechanical Specification
SD-350B-5 Block Diagram
Block Diagram
SD-350B-5 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SD-350B-5 to power 5V embedded computing or logic hardware from a 20-36V DC source?

Yes, this converter provides a constant 5V output from a 20-36V input range. With 285W capacity and up to 57A output, it is suited to higher-current 5V embedded, control, or digital processing loads.

Is the SD-350B-5 suitable for 5V industrial electronics that draw high current?

It is designed for constant-voltage 5V output and can deliver up to 57A. That makes it a fit for heavier 5V loads within its 285W rating, especially in industrial or automation cabinets.

Can this model be used for 5V control boards, processors, or communication modules in an automation system?

Yes, when the source is between 20V and 36V and the equipment needs a regulated 5V rail, this model is aligned with that use case. The 285W rating supports substantial 5V demand across multiple embedded or automation devices.

Is the SD-350B-5 rated for outdoor use?

The listed environmental detail is an operating temperature range of -20°C to +60°C. No IP rating is provided, so the specs do not establish outdoor or weather-exposed suitability.

How does the SD-350B-5 differ from the other SD-350B models?

The SD-350B-5 is 285W at 5V and 57A, the SD-350B-12 is 330W at 12V and 27.5A, the SD-350B-24 is 350.4W at 24V and 14.6A, and the SD-350B-48 is 350.4W at 48V and 7.3A. The series keeps the same general platform while changing the output voltage, power rating, and available current.

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Mean Well SD-350B-5 DC-DC Converter - 280W - 19~36V in 5V out 57A
Mean Well

Mean Well SD-350B-5 DC-DC Converter - 280W - 19~36V in 5V out 57A

$110.14 USD

SD-350B-5 is the 5V output model of this series: rated current 57A, rated power 285W, typical efficiency 74%.

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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