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Mean Well RSDW20G-05 DC-DC Converter - 20W - 18~75V in 5V out 4A
Mean Well RSDW20G-05 DC-DC Converter - 20W - 18~75V in 5V out 4A
Overview
RSDW20G-05 is the 5V output model of this series: rated power 20W, typical efficiency 89%.
RSDW20 and RDDW20 series are 20W module type DC-DC reliable railway converter with 2"x1" package. It features international standard pins, a high efficiency up to 90%, wide working temperature range -40~+85℃, 1.5KVDC(F/G models)/3KVDC(H models) I/P-O/P isolation voltage, compliance with EN50155 railway standard, continuous-mode short circuit protection, etc. The models account for different input voltage 9~36V, 18~75V and 43~160V 4:1 wide input range, and various output voltage, 3.3V/5V/12V/15V for single output and ±5V/±12V/±15V for dual outputs, which are suitable for railway, trams, buses and also can be used in the harsh environment with high vibration, high dust, extremely low or high temperature, etc.
Features
- Compliance with EN50155 railway standard
- DIP 2"x1" package with standard pinout
- 4:1 wide input range
- Wide operating temperature range -40 ~ +85℃
- No minimum load required
- Full encapsulated
- Protections: Short circuit (Continuous) / Overload / Over voltage / Input under voltage
- 1.5KVDC,3KVDC I/O isolation by models
- Remote ON/OFF control
- 3 years warranty
Specifications
MODEL SELECTION TABLE
- INPUT VOLTAGE (RANGE)
- Normal 48V (18 ~ 75V)
- INPUT CURRENT NO LOAD
- 25mA
- INPUT CURRENT FULL LOAD
- 465mA
- OUTPUT VOLTAGE
- 5V
- OUTPUT CURRENT
- 4000mA
- EFFICIENCY (Typ.)
- 89%
- CAPACITOR LOAD (MAX.)* For each output
- 4000μF
INPUT
- VOLTAGE RANGE
- 18~75Vdc ,
- SURGE VOLTAGE (100ms max.)
- 24Vin models : 50Vdc, 48Vin models : 100Vdc, 110Vin models : 200Vdc
- FILTER
- Pi type
- PROTECTION
- Fuse recommended. 24Vin models: 4A delay time Type, 48Vin models: 2A delay time Type, 110Vin models: 0.8A delay time Type
OUTPUT
- VOLTAGE ACCURACY
- ±1.5%
- RATED POWER
- 20W
- RIPPLE & NOISENote.2
- 60mVp-p
- LINE REGULATIONNote.3
- ±0.2%
- LOAD REGULATIONNote.4
- Single output models: ±0.5%, Dual output models:±1%
- CROSS REGULATION
- ±5% @ 25%~100% load
- SWITCHING FREQUENCY (Typ.)
- F/G: Single output 350KHz, Dual output 400KHz H: 250KHz
- EXTERNAL TRIM ADJ. RANGE (Typ.)
- ±10% (Single output model only)
PROTECTION
- SHORT CIRCUIT
- Protection type : Continuous, automatic recovery
- OVERLOAD
- 110 ~ 160% rated output power Protection type : Recovers automatically after fault condition is removed
- OVER VOLTAGE
- Protection type : Clamp by diode
- UNDER VOLTAGE LOCKOUT Start-up voltage
- 24Vin: 8.8Vdc, 48Vin: 17Vdc, 110Vin: 40Vdc
- UNDER VOLTAGE LOCKOUT Shutdown voltage
- 24Vin: 8Vdc, 48Vin: 16Vdc, 110Vin: 38Vdc
FUNCTION
- REMOTE CONTROL
- Power ON: >5.5~75Vdc or open circuit (F/G models) ; >3.5~75Vdc or open circuit (H models) Power OFF: <1.2Vdc or short (F/G/H models)
ENVIRONMENT
- COOLING
- Free-air convection
- WORKING TEMP.
- -40 ~ +85℃ (Refer to "Derating Curve")
- CASE TEMPERATURE
- +105℃ max.
- WORKING HUMIDITY
- 20% ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -55 ~ +125℃, 10 ~ 95% RH non-condensing
- TEMP. COEFFICIENT
- 0.03% / ℃ (0 ~ 71℃)
- SOLDERING TEMPERATURE
- 1.5mm from case of 1 ~ 3sec./260℃ max.
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC ( Note.5)
- SAFETY STANDARDS
- EAC TP TC 020/2011(EAC TP TC 004 for 48Vin/110Vin type only) approved
- WITHSTAND VOLTAGE
- F/G: I/P-O/P 1.5KVDC, H: I/P-O/P 3KVDC
- ISOLATION RESISTANCE
- I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
- ISOLATION CAPACITANCE (Typ.)
- 1000pF
- EMC EMISSION
-
Parameter Standard Test Level Conducted BS EN/EN55032 Class B with external components Radiated BS EN/EN55032 Class B with external components - EMC IMMUNITY
-
Parameter Standard Test Level ESD BS EN/EN61000-4-2 Level 2, ±8KV air, ±4KV contact Radiated Susceptibility BS EN/EN61000-4-3 Level 2, 3V/m EFT/Bursts BS EN/EN61000-4-4 Level 1, 0.5KV Surge BS EN/EN61000-4-5 Level 1, 0.5KV Line-Line Conducted BS EN/EN61000-4-6 Level 2, 3V(e.m.f.) - RAILWAY STANDARD
- EN50155 including EN61373 for shock & vibration, EN50121-3-2 for EMC
OTHERS
- MTBF
- F/G: 720Khrs ; H: 880Khrs MIL-HDBK-217F(25℃)
- DIMENSION (L*W*H)
- 50.8*25.4*10.2mm (2*1*0.4 inch)
- CASE MATERIAL
- Black coated copper with Non-Conductive Base
- PACKING
- 35g ; 12pcs/per tube, 300pcs/25 tube/per carton
Test conditions and notes5
- 1.All parameters are specified at normal input(F:24Vdc, G:48Vdc, H:110Vdc), rated load, 25℃ 70% RH ambient.
- 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf & 47μf capacitor.
- 3.Line regulation is measured from low line to high line at rated load.
- 4.Load regulation is measured from 0% to 100% rated load.
- 5.The final equipment must be re-confirm that it still meet 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)
Technical drawings
Typical applications
- Bus, tram, metro or railway system
- Telecom/datacom system
- Wireless network
- Industrial control facility
- Instrument
- Analyzer
- Highly vibrating, heavily dusty, extremely low or high temperature harsh environment
Downloads
Datasheet1
Certificates3
FAQ
Can I use the RSDW20G-05 to power 5V industrial controllers or embedded boards?
Yes, it provides a constant 5V output rated for up to 4A, with 20W total output power. That makes it suitable for 5V industrial controllers, embedded boards, and automation electronics that remain within those electrical limits.
Is the RSDW20G-05 appropriate for converting higher-voltage input down to 5V for automation electronics?
Yes, this converter accepts 18-75Vdc input and regulates it to 5V output. It is a fit for automation and embedded systems that need a 5V rail from a source within that input range and require no more than 4A or 20W.
Can this model support 5V communication or interface modules in industrial equipment?
Yes, the 5V constant-voltage output and 4A current rating make it suitable for 5V communication, interface, or control modules used in industrial equipment. The 1.5KVDC input-to-output isolation is also relevant where electrical separation is important between input and output sections.
Is the RSDW20G-05 useful in rail-related 5V control applications?
It can be used in railway-related electronic systems because the datasheet lists compliance with the EN50155 railway standard, including EN61373 for shock and vibration and EN50121-3-2 for EMC. Its wide 18-75Vdc input range and compact 50.8 × 25.4 × 10.2 mm (2" × 1") package also suit mobile or space-constrained control electronics.
How does the RSDW20G-05 compare with other models in the same series?
All listed RSDW20G units are 20W converters, but the output ratings differ by model. The RSDW20G-03 is 3.3V at 5.5A, the RSDW20G-05 is 5V at 4A, the RSDW20G-12 is 12V at 1.67A, and the RSDW20G-15 is 15V at 1.33A.
Is the RSDW20G-05 suitable for outdoor or temperature-extreme environments?
Its specified operating temperature range is -40°C to +85°C, so the temperature rating is broad. The provided data does not include an IP rating, so weather, dust, or water resistance is not defined in these specs.
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