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Mean Well RSDW08F-03 DC-DC Converter - 8W - 3~36V in 3.3V out 2A
Mean Well RSDW08F-03 DC-DC Converter - 8W - 3~36V in 3.3V out 2A
Overview
RSDW08F-03 is the 3.3V output model of this series: rated power 8W, typical efficiency 80%.
RSDW08 and RDDW08 series are 8W module type DC-DC reliable railway converter with DIP24 package. It features inter-national standard pins, a high efficiency up to 86%, wide working temperature range -40~+85℃, 1.5KVDC 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 and 18~75V 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 24 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 I/O isolation
- Remote ON/OFF control
- 3 years warranty
Specifications
INPUT
- INPUT VOLTAGE (RANGE)
- Normal 24V (9 ~ 36V)
- INPUT CURRENT NO LOAD
- 10mA
- INPUT CURRENT FULL LOAD
- 344mA
- VOLTAGE RANGE
- 9~36Vdc ,
- SURGE VOLTAGE (100ms max.)
- 24Vin models : 50Vdc, 48Vin models : 100Vdc
- FILTER
- Pi type
- PROTECTION (Typ.)
- Fuse recommended. 24Vin models: 3A delay time Type, 48Vin models: 1.5A delay time Type
- INTERNAL POWER DISSIPATION
- 500mW
OUTPUT
- OUTPUT VOLTAGE
- 3.3V
- OUTPUT CURRENT
- 2000mA
- EFFICIENCY (Typ.)
- 80%
- CAPACITOR LOAD (MAX.)
- 2000μF
- VOLTAGE ACCURACY
- ±1.5%
- RATED POWER
- 8W
- RIPPLE & NOISENote.2
- 50mVp-p
- LINE REGULATIONNote.3
- ±0.5%
- LOAD REGULATIONNote.4
- Single output models: ±0.5%, Dual output models:±1%
- CROSS REGULATION
- ±5% @ 25%~100% load
- SWITCHING FREQUENCY (min.)
- 100KHz
PROTECTION
- SHORT CIRCUIT
- Protection type : Continuous, automatic recovery
- OVERLOAD
- 120 ~ 180% 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
- UNDER VOLTAGE LOCKOUT Shutdown voltage
- 24Vin: 8Vdc, 48Vin: 16Vdc
FUNCTION
- REMOTE CONTROL
- Power ON: R.C. ~ -Vin >3.5~36Vdc or open circuit ; Power OFF: R.C. ~ -Vin <1.2Vdc or short
ENVIRONMENT
- COOLING
- Free-air convection
- WORKING TEMP.
- -40 ~ +85℃ (Refer to "Derating Curve")
- CASE TEMPERATURE
- +100℃ 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; Mounting: compliance to EN61373(Category 1- Class B)
SAFETY & EMC ( Note.5)
- SAFETY STANDARDS
- EAC TP TC 020/2011(EAC TP TC 004 for 48Vin type only) approved
- WITHSTAND VOLTAGE
- I/P-O/P:1.5KVDC
- 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 A/B with external components Radiated BS EN/EN55032 N/A - 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
- Single: 1500Khrs, Dual: 1300Khrs MIL-HDBK-217F(25℃)
- DIMENSION (L*W*H)
- 31.8*20.3*10.2mm (1.25*0.8*0.4 inch)
- CASE MATERIAL
- Black coated copper with non-conductive base
- PACKING
- 18.4g ; 10pcs/per tube, 700pcs/70 tube/per carton
Test conditions and notes5
- 1.All parameters are specified at normal input(F:24Vdc, G:48Vdc), 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 10% 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
Certificates2
Test reports1
FAQ
Can I use the RSDW08F-03 to power 3.3V control electronics in an industrial automation panel?
This model is intended for constant-voltage 3.3V output applications where the load stays within 8W and 2A. Its listed 9-36V input range also fits systems that need a wide input window on low-voltage industrial equipment.
Is this DC-DC converter suitable for embedded boards that require isolated 3.3V power?
It can fit embedded designs that need a regulated 3.3V rail up to 2A and 8W. The product also lists 1.5KVDC input-output isolation, which is relevant in systems where isolated power conversion is required.
Can the RSDW08F-03 be used in railway or transit electronics?
The unit lists compliance with the EN50155 railway standard (including EN61373 for shock & vibration and EN50121-3-2 for EMC), so it is aimed at railway-related electronic applications. It also combines that with a 3.3V constant-voltage output, 8W power rating, and a 9-36V input range.
Is the RSDW08F-03 appropriate for compact space-constrained equipment?
It is designed for compact assemblies, with dimensions of 31.8 × 20.3 × 10.2 mm in a DIP package. That makes it relevant for dense embedded or control hardware where board space and height matter.
Can this converter be used outdoors or in harsh temperature conditions?
The specified operating temperature range is -40°C to +85°C, which supports use in demanding temperature environments. No IP rating is listed in the provided specs, so outdoor exposure or washdown suitability cannot be confirmed from this data alone.
How does the RSDW08F-03 compare with the other RSDW08F output options?
Within the RSDW08F series, all listed siblings are 8W models with the same form factor, but they differ by output rating: RSDW08F-03 is 3.3V at 2A, RSDW08F-05 is 5V at 1.6A, RSDW08F-12 is 12V at 666mA, and RSDW08F-15 is 15V at 530mA. The series also shares the same 9-36V input range and DIP package style.
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