20W 1.6KV Isolation 4:1 Wide Input Range DIP24 DC-DC Converters
YKB20 Series
20W Single & Dual Output 1.6KV 4:1 DC to DC Power Conversion
20 watt 1.25'' x 0.8'' DC to DC power converter with a wide input 4:1 voltage range in 24 pin DIL package. YKB20 series has a 1.6KV isolation voltage and is available in single & dual output specifications. This series has remote control switch function, and the packaging material meets UL94V-0 specifications. The operating environment temperature from -40°C to +87°C, and the efficiency up to 91%. The products are tested by 100% high temperature pre-burn before shipment.
The DC-DC power converter products of Yuan Dean are RoHS-compliant, and can be customized for products. The products are guaranteed for 3 years after sale.
Any OEM/ ODM requirement is welcome. We look forward to cooperating with you!

Features
- 20W DIL package.
- 4:1 Wide Input Voltage Range.
- High Efficiency Up To 91%.
- Regulated Output Types.
- No Minimum Load Required.
- Over Power and Short Circuit Protection.
- UL94V-0 package material.
- Operating Temperature: -40℃ To +87℃(with derating).
- UL94V-0 Package Material.
- 100% Burned In.
- 3 Years Warranty.
Applications
- Industry equipment.
- Sensing equipment.
- Instruments.
- Wireless Network.
- Telecom/Datacom.
- Measurement.
- Aviation.
Specifications typical at TA = 25°C, nominal input voltage and rated output current unless otherwise specified
Part Number | Input Voltage Range | Input Current | Output Voltage | Output Current | Efficiency | Maximum Capacitor Load | |
---|---|---|---|---|---|---|---|
No Load | Full Load | ||||||
Vdc | mA(TYP) | mA(TYP) | Vdc | mA(TYP) | %(TYP) | μF | |
YKB20-24S05 | 9-36 | 7 | 958 | 5 | 4000 | 87 | 6800 |
YKB20-24S12 | 9-36 | 7 | 938 | 12 | 1670 | 89 | 1200 |
YKB20-24S15 | 9-36 | 7 | 934 | 15 | 1330 | 89 | 750 |
YKB20-24S24 | 9-36 | 7 | 915 | 24 | 833 | 91 | 300 |
YKB20-24D12 | 9-36 | 7 | 936 | ± 12 | ± 833 | 89 | ± 820 |
YKB20-24D15 | 9-36 | 7 | 934 | ± 15 | ± 665 | 89 | ± 560 |
YKB20-48S05 | 18-75 | 4 | 474 | 5 | 4000 | 88 | 6800 |
YKB20-48S12 | 18-75 | 4 | 469 | 12 | 1670 | 89 | 1200 |
YKB20-48S15 | 18-75 | 4 | 467 | 15 | 1330 | 89 | 750 |
YKB20-48S24 | 18-75 | 4 | 463 | 24 | 833 | 90 | 300 |
YKB20-48D12 | 18-75 | 7 | 468 | ± 12 | ± 833 | 89 | ± 820 |
YKB20-48D15 | 18-75 | 7 | 467 | ± 15 | ± 665 | 89 | ± 560 |
Input Specifications
Parameters | Conditions | Min | Typ | Max | Units | |
---|---|---|---|---|---|---|
Input Voltage | 24V Models | 9 | 36 | Vdc | ||
48V Models | 18 | 75 | Vdc | |||
Input Surge Voltage (100 ms max.) | 24V Models | -0.7 | 50 | Vdc | ||
48V Models | -0.7 | 100 | Vdc | |||
Start-up Voltage | 24V Models | 9 | Vdc | |||
48V Models | 18 | Vdc | ||||
Under Voltage Shutdown | 24V Models | 7.5 | Vdc | |||
48V Models | 16 | Vdc | ||||
Start-up Time | Constant Resistive Load, Nominal Vins | Power-up | 30 | ms | ||
Remote ON/OFF | 30 | ms | ||||
Input Filter | All Models | Internal Pi type | ||||
Remote ON/OFF (Ctrl PIN Refer To –Vin PIN) | Positive Logic | DC/DC ON | Open or 3.5 Vdc - 12 Vdc | |||
DC/DC OFF | Short or 0 Vdc – 1.2 Vdc | |||||
Input Current Of Ctrl PIN | -0.5 | 0.5 | mA | |||
Remote Off Input Current | 3 | mA |
Output Specifications
Parameters | Conditions | Min | Typ | Max | Units | |
---|---|---|---|---|---|---|
Voltage Tolerance | 100% load | -2 | +2 | % | ||
Line Regulation | Vin(min) to Vin(max) @100% Load | -0.2 | +0.2 | % | ||
Load Regulation | 0% Load to 100% Load | 5V Output | -1 | +1 | % | |
Other Output | -0.5 | +0.5 | % | |||
Load Cross Regulation | Asymmetrical Load 25% / 100% Load | Dual Output | -5.0 | +5.0 | % | |
Ripple & Noise (BW=20MHz) | 24Vout | 150 | mVp-p | |||
Other Outputs | 100 | mVp-p | ||||
Transient Response Setting Time | 25% Load Step Change | 300 | 500 | μs | ||
Transient Response Deviation | 25% Load Step Change | -5 | ± 3 | +5 | % | |
Temperature Coefficient | -0.02 | +0.02 | %/°C | |||
Output Power Protection | % of Io, Hiccup mode, Auto-recovery | 120 | 150 | 180 | % | |
Short Circuit Protection | Continuous [Hiccup Mode] ,Auto-Recovery | |||||
Over Voltage Protection | 5Vout | 6.2 | Vdc | |||
12Vout | 15 | Vdc | ||||
15Vout | 18 | Vdc | ||||
24Vout | 30 | Vdc |
General Specifications
Parameters | Conditions | Min | Typ | Max | Units | |
---|---|---|---|---|---|---|
Isolation Voltage | Input To Output (60sec) | 1600 | Vdc | |||
Input(Output) To Case (60sec) | 1000 | Vdc | ||||
Isolation Resistance | 500Vdc | 1000 | MΩ | |||
Isolation Capacitance | 100kHz, 1V | 2200 | pF | |||
Switching Frequency | 100% Load, Nominal Input | 5V Output | 250 | KHz | Other Output | 330 | KHz |
Operating Ambient Temperature (Power Derating See Derating Graph) | Nominal Vin, 100% Load | YKB20-24S05 | -40 | 51.2 | °C | |
YKB20-48S05 | 55.9 | °C | ||||
YKB20-24S12, YKB20-24S15, YKB20-24D12, YKB20-24D15, YKB20-48S12, YKB20-48S15, YKB20-48D12, YKB20-48D15 | 60.5 | °C | ||||
YKB20-24S24 | 69.4 | °C | ||||
YKB20-48S24 | 65 | °C | ||||
Thermal Impedance | 20LFM | 18 | °C/W | |||
100LFM | 14.7 | |||||
200LFM | 11.5 | |||||
400LFM | 8 | |||||
Maximum Case Temperature | 105 | °C | ||||
Storage Temperature | -55 | 125 | °C | |||
Humidity | Non Condensing | 5 | 95 | % | ||
Cooling | Natural Convection | |||||
Thermal Shock | MIL-STD-810F | |||||
Shock &Vibration Test | MIL-STD-810F | |||||
Case Material | Copper | |||||
Potting Material | Silicone (UL94-V0) | |||||
MTBF | MIL-HDBK-217F@25°C (calculated) | 4.47X105 | Hours | |||
Weight | 18 | g | ||||
Dimensions | 31.6 x 20.1 x 10.0 | mm |
Certification

- Markings and Dimensions
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Details- Files Download
DC-DC Converter 20W DIP Package YKB20 Series
20W 1.6KV Isolation 4:1 Wide Input Voltages Range DC-DC Converter PDF Catalogue
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20W 1.6KV Isolation 4:1 Wide Input Range DIP24 DC-DC Converters Supplier | YDS
Located in Taiwan, YUAN DEAN SCIENTIFIC CO., LTD., since 1990, is a 20W 1.6KV Isolation 4:1 Wide Input Range DIP24 DC-DC Converters manufacturer in electronic component industry. Main product, including DC/DC converter, AC/DC converter, RJ45 with magnetics, 10/100/1G/2.5G/10G Base-T Lan filter, Delay Lines, all kinds of Transformer, Inductor, LED Driver/Lighting products and Power bank.
ISO 9001 & ISO 14001, IATF16949 certified power converter, high frequency transformer, magnetic component with reliable EMC and EMI / EMS / EDS lab tests. Power converter solutions for medical, railway, POE, etc.
YDS has been offering customers high-quality power converter, transformer, magnetic component, both with advanced technology and 25 years of experience, YDS ensures each customer's demands are met.