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Polytron RLPB20 Series DC-DC Converters, 20 Watts, 4:1 Wide Input Range for Railway Applications
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Price (Each): Call or e-mail for quotes or to order.
Available to Order
Item Number: RLPB20
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RLPB20 Series DC-DC Converters for Railway Applications
RLPB20 Series 20-watt single and dual output regulated DC-DC converters for railway applications feature a 4:1 wide input range, high efficiency up to 91 percent, low standby power, remote ON/OFF control for energy savings and no minimum load requirement. Isolation voltage is 3000V DC, and the units come in a miniature 1.0 by 1.0 by 0.39-inch package to suit low-profile designs. The converters also provide an internal EN50121-3-2 filter, and a six-sided continuous shield minimizes noise leakage.
RLPA20 Series Specification Sheet PDF
Daburn Part
Number |
Input Voltage
Range (Vdc) |
Output Voltage
(Vdc) |
Output Current
Full load (A) |
Input Current
No Load
(mA) |
Efficiency
% |
Max. Capacitor
Load µF |
| Single Output |
| RLPB20-24S3.3 |
9 - 36
|
3.3 |
5500 |
10 |
88 |
8000 |
| RLPB20-24S5 |
5 |
4000 |
10 |
89 |
5000 |
| RLPB20-24S5.1 |
5.1 |
4000 |
10 |
89 |
5000 |
| RLPB20-24S12 |
12 |
1670 |
7 |
89 |
850 |
| RLPB20-24S15 |
15 |
1330 |
7 |
89 |
700 |
| RLPB20-24S24 |
24 |
833 |
10 |
91 |
220 |
| RLPB20-48S3.3 |
18- 75 |
3.3 |
5500 |
10 |
89 |
8000 |
| RLPB20-48S05 |
5 |
4000 |
10 |
90 |
5000 |
| RLPB20-48S5.1 |
5.1 |
4000 |
10 |
90 |
5000 |
| RLPB20-48S12 |
12 |
1670 |
5 |
89 |
850 |
| RLPB20-48S15 |
15 |
1330 |
5 |
90 |
700 |
| RLPB20-48S24 |
24 |
833 |
8 |
91 |
220 |
| RLPB20-110S3.3 |
36-106 |
3.3 |
5500 |
6 |
88 |
8000 |
| RLPB20-110S5 |
5 |
4000 |
6 |
90 |
5000 |
| RLPB20-110S5.1 |
5.1 |
4000 |
6 |
90 |
5000 |
| RLPB20-110S12 |
12 |
1670 |
6 |
90 |
850 |
| RLPB20-110S15 |
15 |
1330 |
6 |
90 |
700 |
| RLPB20-110S24 |
24 |
833 |
6 |
91 |
220 |
| RLPB20-24-12 |
9- 36 |
±12 |
±833 |
7 |
89 |
±500 |
| RLPB20-24-15 |
±15 |
±667 |
7 |
90 |
±350 |
| RLPB20-24-24 |
±24 |
±417 |
12 |
91 |
±100 |
| RLPB20-48-12 |
18- 75 |
±12 |
±833 |
5 |
89 |
±500 |
| RLPB20-48-15 |
±15 |
±667 |
5 |
90 |
±350 |
| RLPB20-48-24 |
±24 |
±417 |
10 |
91 |
±100 |
| RLPB20-110-12 |
36-160 |
±12 |
±833 |
6 |
90 |
±500 |
| RLPB20-110-15 |
±15 |
±667 |
6 |
90 |
±350 |
| RLPB20-110-24 |
±24 |
±417 |
6 |
91 |
±100 |
Input and Output Specifications:
INPUT
- Operating input voltage range, Vdc
- 9 Min., 24 Typ., 36 Max.; 24Vin(nom)
- 18 Min., 48 Typ., 75 Max.; 48Vin(nom)
- 36 Min., 110 Typ., 160 Max.; 110Vin(nom)
- Start up voltage, Vdc
- 9 Max.; 24Vin(nom)
- 18 Max.; 48Vin(nom)
- 36 Max.; 110Vin(nom)
- Shutdown voltage, Vdc
- 7.5 Min., 8 Typ., 8.8 Max.; 24Vin(nom)
- 15.5 Min., 16 Typ., 17.5 Max.; 48Vin(nom)
- 32 Min., 34 Typ., 35.5 Max.; 110Vin(nom)
- Start up time, ms
- Constant resistive load
- 30 Typ., 40 Max.; Power up
- 30 Typ., 40 Max.; Remote ON/OFF
- Input surge voltage, Vdc
- 1 second, max.
- 50 Max.; 24Vin(nom)
- 100 Max.; 48Vin(nom)
- 185 Max.; 110Vin(nom)
- Input filter
- Remote ON/OFF
- Referred to -Vin pin
- Open or 3 - 15 Vdc; Positive logic, DC-DC ON
- Short or 0 - 1.2 Vdc; (Option), DC-DC OFF
- Short or 0 - 1.2 Vdc; Negative logic, DC-DC ON
- Open or 3 - 15 Vdc; (Standard), DC-DC OFF
- -0.5 Min., 1 Max., mA; Input current of Ctrl pin
- 2.5 mA Typ.; Remote off input current
OUTPUT
- Voltage accuracy, %
- Line regulation, %:
- Low Line to High Line at Full Load
- -0.2 Min., +0.2 Max.; Single
- -0.5 Min., +0.5 Max.; Dual
- Load regulation, %
- -0.2 Min., +0.2 Max.; No Load to Full Load, Single
- -1.0 Min., +1.0 Max.; No Load to Full Load, Dual
- -0.1 Min., +0.1 Max.; 10% Load to 90% Load, Single
- -0.8 Min., +0.8 Max.; 10% Load to 90% Load, Dual
- Cross regulation, %
- -5.0 Min., +5.0 Max.; Asymmetrical load 25%/100%FL, Dual
- Voltage and adjustability, %
- -10 Min., +20 Max.; Single Output, 15Vout, 24Vout
- -10 Min., +10 Max.; Others
- Ripple and noise, mVp-p
- Measured by 20MHz bandwidth
- 75 Typ.; Single, With a 22μF/25V X7R MLCC, 3.3Vout, 5Vout, 5.1Vout
- 100 Typ.; Single, With a 22μF/25V X7R MLCC, 12Vout, 15Vout
- 125 Typ.; Single, With a 4.7μF/50V X7R MLCC, 24Vout
- 100 Typ.; Dual, With a 10μF/25V X7R MLCC for each output, 12Vout, 15Vout
- 125 Typ.; Dual, With a 4.7μF/50V X7R MLCC for each output, 24Vout
- Temperature coefficient, %/°C
- Transient response recovery time, μs
- 250 Typ.; 25% load step change
- Over voltage protection, Vdc
- 3.7 Min., 5.4 Max.; 3.3Vout
- 5.6 Min., 7.0 Max.; 5Vout, 5.1Vout
- 13.5 Min., 19.6 Max.; 12Vout
- 16.8 Min., 20.5 Max.; 15Vout
- 29.1 Min., 32.5 Max.; 24Vout
- Over load protection, %
- 170 Typ.; % of lout rated
- Short circuit protection
- Continuous, automatics recovery
More Specifications:
GENERAL
- Isolation voltage, Vac:
- 1 minute; Input to Output; 3000 Min.
- Input (Output) to Case; 1600 Min.
- Isolation resistance, GΩ: 500Vdc; 1 Min.
- Isolation capacitance, pF: 2000 Max.
- Switching frequency, kHz:
- 3.3Vout, 5Vout; 220 Min.; 245 Typ.; 270 Max.
- Others; 270 Min.; 300 Typ.; 330 Max.
ENVIRONMENTAL
- Operating ambient temperature, °C:
- Standard type, with derating; -40 Min.; +105 Max.
- M3 version, with derating; -55 Min.; +105 Max.
- Maximum case temperature, °C: 105 Max.
- Over temperature protection: 115 Typ.
- Storage temperature range, °C: -55 Min.; +125 Max.
- Thermal impedance, °C/W:
- Without heat-sink: 15.5 Typ.
- With heat-sink: HC1, 12.3 Typ.; HC2, 10.7 Typ.; HC3, 9.1 Typ.
- Thermal shock: MIL-STD-810F
- Shock: EN61373, MIL-STD-810F
- Vibration: EN61373, MIL-STD-810F
- Relative humidity: 5% to 95% RH
PHYSICAL
- Design meet safety standard: UL:E193009, CB:UL(Demko)
- Case material: Copper
- Base material: FR4 PCB
- Potting material: Silicone (UL94 V-0)
- Weight: 16.5g (0.56oz)
- MTBF: 1.201 x 106 hrs
EMC CHARACTERISTICS
- EMI
- Conditions: EN50121-3-2; Without external components
- Conditions: EN55032; With an aluminum electrolytic capacitor. Level: Class A
- Conditions: EN55032; Without external components. Level: Class A
- Conditions: EN55032; With external components. Level: Class B
- ESD
- Conditions: EN61000-4-2; Air ±8kV and Contact ±6kV. Level: Perf. Criteria A
- Radiated immunity
- Conditions: EN61000-4-3; 20V/m. Level: Perf. Criteria A
- Fast transient
- Conditions: EN61000-4-4; ±2kV. Level: Perf. Criteria A
- Conditions: RLPB20-24XXX; With an aluminum electrolytic capacitor a TVS in parallel
- Conditions: RLPB20-48XXX; With an aluminum electrolytic capacitor
- Conditions: RLPB20-110XXX; With an aluminum electrolytic capacitor a TVS in parallel
- Surge
- Conditions: EN61000-4-5; ±1kV. Level: Perf. Criteria A
- Conditions: RLPB20-24XXX; With an aluminum electrolytic capacitor a TVS in parallel
- Conditions: RLPB20-48XXX; With an aluminum electrolytic capacitor
- Conditions: RLPB20-110XXX; With an aluminum electrolytic capacitor a TVS in parallel
- Conducted immunity
- Conditions: EN61000-4-6; 10 Vr.m.s. Level: Perf. Criteria A
- Power frequency magnetic field
- Conditions: EN61000-4-8; 100A/m continuous; 1000A/m 1 second. Level: Perf. Criteria A
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