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RBH20 Series DC-DC Converters for Railway Applications
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Available to Order
Item Number: RBH20
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RBH20 Series 20-watt DC-DC converters for railway applications feature a 4:1 wide input range, high efficiency up to 90.5 percent, low standby power, remote ON/OFF control for energy savings, no minimum load requirement and 3000V AC reinforced insulation. Built-in safeguards include overcurrent, overvoltage, short circuit, undervoltage and over-temperature protections. The converters also provide an internal filter that conforms with EN55032 Class A emissions requirements. RBH20 DC-DC converters meet the IEC/EN/UL 62368-1 safety standard and comply with RoHS and REACH regulations.
RBH20 Series Specification Sheet PDF
| Daburn Part Number |
Input Voltage Range
Vdc |
Output Voltage
Vdc |
Output Current
at Full Load
mA |
Input Current
at No Load
mA |
Efficiency
(%) |
Maximum Capacitor
Load
µF |
| RBH20-110S5 |
36 ~ 160 |
5 |
4,000 |
10 |
90.5 |
5,000 |
| RBH20-110S5.1 |
36 ~ 160 |
5.1 |
4,000 |
10 |
90.5 |
5,000 |
| RBH20-110S12 |
36 ~ 160 |
12 |
1,670 |
10 |
88.5 |
850 |
| RBH20-110S15 |
36 ~ 160 |
15 |
1,330 |
10 |
89.5 |
700 |
| RBH20-110S24 |
36 ~ 160 |
24 |
833 |
10 |
88.5 |
220 |
| RBH20-110-5 |
36 ~ 160 |
±5 |
±2,000 |
10 |
86 |
±2,500 |
| RBH20-110-12 |
36 ~ 160 |
±12 |
±833 |
10 |
88.5 |
±500 |
| RBH20-110-15 |
36 ~ 160 |
±15 |
±667 |
10 |
89.5 |
±350 |
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Input and Output Specifications:
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INPUT
- Operatin input voltage range, Vdc: 36 Min., 110 Typ., 160 Max., 110 Vin (nom)
- Start up voltage, Vdc: 36 Max. 110 Vin (nom)
- Shutdown voltage, Vdc: 32 Min., 34 Typ., 35.8 Max., 110 Vin (nom)
- Start up time, ms:
- 30 Typ., 60 Max., Power up, Constant resistive load
- 30 Typ., 60 Max., Remote ON/OFF
- Input surge voltage, Vdc: 25 Max., 1 second, Max., 110 Vin (nom)
- Input filter: Pi type
- Remote ON/OFF:
- Open or 3 ~ 12Vdc: Positive logic, DC-DC ON
- Short or 0 ~ 1.2Vdc: Standard, DC-DC OFF
- Short or 0 ~ 1.2Vdc: Negative logic, DC-DC ON
- Open or 3 ~ 12Vdc: Option, DC-DC OFF
- -0.5 Min., 0.5 Max.: Input current of Ctrl pin
- 3 Typ.: Remote off input current
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OUTPUT
- Voltage accuracy, %: ±1
- Line regulation, %: ±0.2, LL to HL at full load, single
- Load regulation, %:
- ±0.5, No load to full load, Single
- -±1, Dual
- Cross regulation, %: ±5, Asymmetrical load 25%/100% FL, Dual
- Voltage adjustability, %:
- ±10: Single Output, Other
- -10 Min., 20 Max.: 15, 24 Vout
- Ripple and noise, mVp-p: Measured by 20MHz bandwidth, with a 1µF/50V X7R MLCC
- 75 Typ.: 5, 5.1 Vout
- 100 Typ.: 12, 15 Vout
- 150 Typ.: 24 Vout
- Temperature coefficient, %/ºC: ±0.02
- Transient response recovery time, μs: 250 Typ., 25% load step change
- Over voltage protection. Vdc: Zener Diode clamp
- 6.2: 5, 5.1 Vout
- 15: 12 Vout
- 20: 15 Vout
- 30: 24 Vout
- Over load protection, %: Percent of Iout rated, Hiccup mode: 150
- Short circuit protection: Continuous, automatic recovery
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More Specifications:
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GENERAL
- Isolation Voltage, Vac: 1 minute, input to output, 3,000 Min.
- Isolation resistance, GΩ: 500Vdc, 1 Min.
- Isolation capacitance, pF: 1,000 Max.
- Switching frequency, kHz: 250 Min., 275 Typ., 310 Max.
ENVIRONMENTAL
- Operating ambient temperature °C: With derating, -40 Min. +105 Max.
- Maximum case temperature, °C: +105 Max.
- Over temperature protection, °C: Internal temperature sensor
- Storage temperature range: -55 Min., 125 Max.
- Thermal impedance, °C/W: 11.48 Typ.
- Thermal shock: MIL-STD-810F
- Vibration: MIL-STD-810F
- Relative humidity: 5% to 95% RH
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PHYSICAL
- Design meet safety standard: IEC/EN/UL 62368-1, EN505155, EN45545-2
- Case material: Non-conductive black plastic
- Base material: Non-conductive black plastic
- Potting material: Silicone, (UL94 V-0)
- Weight: 24g (0.85oz)
- MTBF: 1.558 × 106 hrs, MIL-HDBK-217F, Full Load
EMC CHARACTERISTICS
- EMI:
- EN55032, EN50121-3-2, Without external components, Class A
- With external components, Class B
- EMS: EN55035, EN50121-3-2
- ESD: EN61000-4-2, Air ±8kV and Contact ±6kV, Perf. Criteria A
- Radiated immunity: EN61000-4-3, 20V/m, Perf. Criteria A
- Fast transient: EN61000-4-4, ±2KV, Perf. Criteria A
- Surge: EN61000-4-5, ±2KV, Perf. Criteria A
- Conducted immunity: EN61000-4-6, 10Vr.m.s, Perf. Criteria A
- Power frequency magnetic field: EN61000-4-8, 100A/m continuous; 1000A/m 1 second, Perf. Criteria A
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