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Meanwell RDDW08F Series is 8W DC-DC reliable railway converter. The product highlights module type and DIP24 package. At the same time, the main features are as following: international standard pins, high efficiency reaching up to 86%, wide working temperature range -40~+85℃, 1.5KVDC I/P-O/P isolation voltage, compliance with EN501 55 railway standard, continuous-mode short circuit protection, etc. In addition, 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. Considering its long lifetime, high reliability, and excellent quality, Meanwell RDDW08F Series 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 |
08 | Rated Wattage |
F | Input Voltage ((F: 9-36Vdc, G: 18-75Vdc) |
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 | ||||||
RDDW08F-05 | Normal 24V (9~36V) | 10mA | 406mA | ±5V | ±0~800mA | 82% | 800μF |
RDDW08F-12 | 10mA | 392mA | ±12V | ±0~333mA | 85% | 333μF | |
RDDW08F-15 | 15mA | 390mA | ±15V | ±0~265mA | 85% | 265μF | |
INPUT | VOLTAGE RANGE | F: 9~36Vdc, G: 18~75Vdc | |||||
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 | VOLTAGE ACCURACY | ±1.5% | |||||
RATED POWER | 8W | ||||||
RIPPLE & NOISE | 50mVp-p | ||||||
LINE REGULATION | ±0.5% | ||||||
LOAD REGULATION | Single output models:±0.5%, Dual output models:±1% | ||||||
CROSS REGULATION | ±5% at 25%~100% load | ||||||
SWITCHING FREQUENCY | 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 12Vin: 24Vin: 8.8Vdc, 48Vin: 17Vdc | ||||||
Shutdown voltage 24Vin: 8Vdc, 48Vin: 16Vdc 5Vin: 4.4Vdc, 12Vin: 8.8Vdc, 24Vin: 17Vdc, 48Vin |
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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 | 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 | NA | |||||
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 including EN61373 for shock & vibration, EN50121-3-2 for EMC | ||||||
OTHERS | MTBF | Single: 1500Khrs, Dual: 1300Khrs MIL-HDBK-217F(25℃) | |||||
DIMENSION | 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, 500pcs/50 tube/per carton |
l 3 years warranty
l 4:1 wide input range
l No minimum load required
l Full encapsulated
l 1.5KVDC I/O isolation
l Remote ON/OFF control
l DIP24 package with standard pinout
l Compliance with EN50155 railway standard
l Wide operating temperature range -40~+85℃
l Protections: Short circuit (Continuous)/Overload/Over voltage/Input under voltage
l Wireless network
l Industrial control facility
l Instrument
l Analyzer
l Bus, tram, metro or railway system
l Telecom/Datacom system
l Highly vibrating, heavily dusty, exteremely low or high temperature harsh environment
Brand | Meanwell |
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