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Meanwell RDDW20H-12 is 20W DC-DC reliable railway Converter with 110V3mA206mA±12V±0~833mA. The model highlights module type and 2"x1" package. Meanwhile, the main features are as following: international standard pins, 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. Moreover, 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. In view of its longevity, high reliability, and excellent performane, Meanwell RDDW20H-12 is 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.
RDDW | Series Name S: Single Mode, D: Dual Mode |
20 | Rated Wattage |
H | Input Voltage ((F: 9-36Vdc, G: 18-75Vdc H: 43-160Vdc) |
12 | Output Voltage (3.3/5/12/15Vdc, ±5/±12/15Vdc) |
ORDER NO. | INPUT | OUTPUT | EFFICIENCY (TYP.) | CAPACITOR LOAD (MAX) | |||
INPUT VOLTAGE (RANGE) | INPUT CURRENT | OUTPUT VOLTAGE | OUTPUT CURRENT | ||||
NO LOAD | FULL LOAD | ||||||
RDDW20H-12 | Normal 110V (43~160V) | 3mA | 206mA | ±12V | ±0~833mA | 89.0% | 680μF |
RDDW20H-15 | 3mA | 206mA | ±15V | ±0~667mA | 88.5% | 350μF | |
INPUT | VOLTAGE RANGE | F: 9~36Vdc, G: 18~75Vdc, H: 43~160Vdc | |||||
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 & NOISE | 60mVp-p | ||||||
LINE REGULATION | ±0.2% | ||||||
LOAD REGULATION | Single output models:±0.5%, Dual output models:±1% | ||||||
CROSS REGULATION | ±5% at 25%~100% load | ||||||
SWITCHING FREQUENCY | F/G: Single output 350KHz, Dual output 400KHz H: 250KHz | ||||||
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 | ||||||
Shutdown voltage 24Vin: 8Vdc, 48Vin: 16Vdc, 110Vin: 38Vdc 5Vin: 4.4Vdc, 12Vin: 8.8Vdc, 24Vin: 17Vdc, 48Vin |
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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) |
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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 | 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/Burest | 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 / IEC60571 including EN61373 for shock & vibration, EN50121-3-2 for EMC | ||||||
OTHERS | MTBF | F/G: 720Khrs ; H: 880Khrs MIL-HDBK-217F(25℃) | |||||
DIMENSION | 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 |
l DIP 2"x1" package with standard pinout
l 1.5KVDC,3KVDC I/O isolation by models
l Full encapsulated
l 4:1 wide input range
l 3 years warranty
l No minimum load required
l Remote ON/OFF control
l Compliance with EN501 55 railway standard
l Wide operating temperature range -40~+85℃
l Protections: Short circuit (Continuous)/Overload/Over voltage/Input under voltage
l Bus, tram, metro or railway system
l Telecom/Datacom system
l Analyzer
l Instrument
l Wireless network
l Industrial control facility
l Highly vibrating, heavily dusty, exteremelylow or high temperature harsh environment
Brand | Meanwell |
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