☎ (888) 228 9138

Over 15 years experience of providing support of MEAN WELL Power Supplies

1 4

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well RSD-300C-5 DC-DC Converter - 201.6W - 33.6~62.4V in 5V out 42A

$138.16 USD
Shipping calculated at checkout.
|

Your order will be processed within 24 hours

Overview

RSD-300C-5 is the 5V output model of this series: rated current 42A, rated power 210W, typical efficiency 90.5%.

Features

  • Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature / Input reverse polarity
  • 4000VDC I/O isolation
  • Cooling by free air convection
  • Half encapsulated
  • Built-in constant current limiting circuit
  • 1U low profile 40mm
  • All using 105℃ long life electrolytic capacitors
  • LED indicator for power on
  • 100% full load burn-in test
  • 3 years warranty

Specifications

RSD-300C-5Specifications from the official datasheet (2025-07-18 edition)

OUTPUT

DC VOLTAGE
5V
RATED CURRENT
42A
CURRENT RANGE
0 ~ 42A
RATED POWER
210W
RIPPLE & NOISE (max.)Note.2
100mVp-p
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
800ms, 50ms at full load
HOLD UP TIME (Typ.)
Please refer to page 5,6 Hold up Time( Load de-rating curve )

INPUT

VOLTAGE RANGE CONTINUOUS
33.6 ~ 62.4VDC
VOLTAGE RANGE 1 SEC.
28.8 ~ 67.2VDC
EFFICIENCY (Typ.)
90.5%
DC CURRENT (Typ.)
4.8A/48V
INRUSH CURRENT (Typ.)
45A/48VDC
INTERRUPTION OF VOLTAGE SUPPLY
EN50155:2021-Comply with S1 level

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
5.75 ~ 7V 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.
-40 ~ +55℃ (no derating) ; +70℃ @ 60% load by free air convection ; +70℃ no derating with external base plate, TX class compliance
WORKING HUMIDITY
5 ~ 95% RH non-condensing
STORAGE TEMP.
-40 ~ +85℃
TEMP. COEFFICIENT
± 0.03%/℃ (0 ~ 55℃ )
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373
OPERATING ALTITUDE
5000 meters

SAFETY & EMC (Note 5)

SAFETY STANDARDS
IEC 62368-1, UL 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
WITHSTAND VOLTAGE
I/P-O/P:4KVDC I/P-FG:2.5KVDC O/P-FG:2.5KVDC
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) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8, BS EN/EN55035, light industry level, EAC TP TC 020
RAILWAY STANDARD
BS EN/EN50155 / IEC60571 including IEC61373 for shock & vibration,BS EN/EN50121-3-2 for EMC;BS EN/EN45545-2 for fire protection

OTHERS

MTBF
1850.1K hrs min. Telcordia SR-332 (Bellcore) ; 130.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
216*96.5*40mm (L*W*H)
PACKING
1.19Kg ; 12pcs/15.3Kg/0.97CUFT
Test conditions and notes6
  1. 1. All parameters NOT specially mentioned are measured at 24,48VDC 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. Strongly recommended that external output capacitance should not exceed 5000uF. (Only for: RSD-300-5 / -12)
  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 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 )
  6. 6. 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

RSD-300C-5 Mechanical Specification
Mechanical Specification
RSD-300C-5 Block Diagram
Block Diagram
RSD-300C-5 Input Under-Voltage Protection
Input Under-Voltage Protection
RSD-300C-5 Hold-up Time
Hold-up Time
RSD-300C-5 Efficiency vs Load & Vin Curve
Efficiency vs Load & Vin Curve
RSD-300C-5 RSD-300E-5
RSD-300E-5
RSD-300C-5 RSD-300E-48
RSD-300E-48
RSD-300C-5 Parallel and Series Connection
Parallel and Series Connection
RSD-300C-5 supplier if you have this kind of application.
supplier if you have this kind of application.
RSD-300C-5 supplier if you have this kind of application. (2)
supplier if you have this kind of application. (2)
RSD-300C-5 Overload Protection
Overload Protection
RSD-300C-5 Derating Curve
Derating Curve
RSD-300C-5 R S D - 3 0 0 series
R S D - 3 0 0 series
RSD-300C-5 R S D - 3 0 0 series (2)
R S D - 3 0 0 series (2)
RSD-300C-5 LOAD(%)
LOAD(%)
RSD-300C-5 Immunity to Environmental Conditions
Immunity to Environmental Conditions

Downloads

FAQ

Can I use the RSD-300C-5 to power 5V industrial controllers or embedded boards from a 33.6 to 62.4V DC source?

Yes. The RSD-300C-5 converts 33.6 to 62.4V input to a constant 5V output. With 210W capacity and 42A output current, it fits higher-current 5V industrial and embedded loads within those ratings.

Is this 5V converter suitable for powering multiple 5V automation modules on a higher-voltage DC bus?

It can be suitable where the combined load stays within 42A and 210W. This model is intended for systems that need regulated 5V constant-voltage output from a 33.6 to 62.4V DC input range.

Would the RSD-300C-5 work for 5V industrial computing or data acquisition equipment?

Yes, if the equipment requires a regulated 5V rail and remains within the 42A output and 210W limit. That makes it relevant for higher-current 5V embedded computing and data acquisition use cases on a higher-voltage DC source.

Can this model be used in vibration-heavy machinery or mobile automation platforms?

Yes. The specs list 5G vibration resistance, which supports use in moving or vibration-prone equipment. It still provides 5V constant-voltage output with up to 42A and 210W.

Is the RSD-300C-5 intended for outdoor environments?

The specs show an operating temperature range of -40°C to +55°C at full load, up to +70°C at 60% load by free-air convection, or +70°C at full load with an external base plate; -40°C to +85°C is the storage range. No IP rating is listed, so the provided data does not confirm outdoor or weather-exposed use.

How does the RSD-300C-5 differ from the other RSD-300C models?

The RSD-300C family listed here includes RSD-300C-5 at 210W, 5V, 42A, RSD-300C-12 at 300W, 12V, 25A, RSD-300C-24 at 300W, 24V, 12.5A, and RSD-300C-48 at 302.4W, 48V, 6.3A. The differences are in output voltage, output current, and the listed wattage.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bizum
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

{ "id":8659146408256, "variants" :[{ "context":"default", "variant_id": 46634331996480, "sku":"RSD-300C-5", "inventory_qty" : 2, "customer" : true, "custom_html" :"\u003cdiv class=\"price\"\u003e\n \u003cdiv class=\"price__default\"\u003e\n \u003cstrong class=\"price__current\"\u003e$138.16\u003c\/strong\u003e\n \u003cs class=\"price__was\"\u003e\u003c\/s\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"unit-price relative\" hidden\u003e\u003cspan class=\"visually-hidden\"\u003eUnit price\u003c\/span\u003e\u003cspan class=\"unit-price__price\"\u003e\u003c\/span\u003e\u003cspan class=\"unit-price__separator\"\u003e \/ \u003c\/span\u003e\u003cspan class=\"unit-price__unit\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n \u003cdiv class=\"price__no-variant\" hidden\u003e\n \u003cstrong class=\"price__current\"\u003eUnavailable\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }
Mean Well RSD-300C-5 DC-DC Converter - 201.6W - 33.6~62.4V in 5V out 42A
Mean Well

Mean Well RSD-300C-5 DC-DC Converter - 201.6W - 33.6~62.4V in 5V out 42A

$138.16 USD

RSD-300C-5 is the 5V output model of this series: rated current 42A, rated power 210W, typical efficiency 90.5%.

Features

  • Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature / Input reverse polarity
  • 4000VDC I/O isolation
  • Cooling by free air convection
  • Half encapsulated
  • Built-in constant current limiting circuit
  • 1U low profile 40mm
  • All using 105℃ long life electrolytic capacitors
  • LED indicator for power on
  • 100% full load burn-in test
  • 3 years warranty
View product

  • Call us

    (888) 228 9138

  • Email us

    contact@wellforces.com

  • Business Hours

    Mon-Fri
    EST 9:00am-5:30pm

  • Wholesale and Trade Account

    Let's grow together
Back to top