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9V to 24V 10W 1111mA DC to DC 91% transfer input power supply module URB2409YMD-10WR3

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Product Features

1. Ultra wide range input (4: 1), output 10W 

2. Conversion efficiency 91% (Typ) 

3.Isolation voltage 1500Vdc 

4. Ultra-low standby power consumption: 0.036W (typical) 

5. Ultra fast startup: 1mS (typical value) 

6. Operating temperature range: -40 ° C ~ + 85 ° C 

7. Input under voltage, output short circuit, over current, over voltage 

8.Metal casing, low output ripple 

9. International standard pins, PCB board in-line installation 

10. Adopting high-quality environmental protection waterproof and thermally conductive adhesive potting, moisture-proof, vibration-proof, meet the waterproof and dustproof IP65 standard 

11. High reliability, long life design, long continuous working time

Enviroment Condition

Project nameQualificationUnitNotes
Working enviroment temperature-40—+85
Storage temperture-40—+80 ℃
Relative humidity5—95%
Heat dissipation modenatural cooling

Atmospheric pressure80—106 KpaKpa
VibrateVibration coefficient 10~500Hz,2G10min./1cycle, 60min.each along X,Y,Z axes
Meet the requirements of secondary road transportation

Input Characteristics

Project nameWorking conditionsUnitNotes
Related input voltage24Vdc
Input voltage range18-36Vdc
Maximum input current≤0.7A
Reflection ripple current60mA

DC12V rated input voltage series

Impulse voltage≤50Vdc
Starting voltage18Vdc
Input undervoltage protection---Vdc
Start-up delay100msRated input voltage and constant resistance load
Input filter type
PI version
Hot plugged

Output Characteristics(12V/830mA)

Project nameTechnical requirementUnitNotes
No load rated output voltage12V±2%Vdc
Short-time maximum output current≥900mA
Rated output current830mA
Voltage regulation±0.5%
Load regulation ±1%
Transfer efficiency Vin=24Vdc, output full load 86%
Output ripple and noise (mVp-p)≤100 Pure resistance load, 20MHz bandwidth, peak to peak valuemV
Output over-current protection
the maximum load 110-200% Vdc
Insulation voltageInput- output, test in 1 minute, leakage current less than 1mA/1500V-
Insulation resisitanceInput- output, insulation volaltge 500VDC/1000MΩ
Isolation capacitanceInput- output, 100KHz/0.1V 1000pF-


(1) For product model with output voltage ±5VDC or ±9VDC , the maximum output voltage accuracy is ±5% under 0% - 5% load condition 

(2) When tested according to the 0%-00% load working condition, the load adjustment rate is ±5% 

(3) 0%-5% load ripple & noise less than or equal to 5% Vo. Ripple and noise test method, Twisted pair test method, can add capacitive load at the output to reduce light load ripple

Typical Application Circuits


EMC parameter recommendation

Component No.FunctionRecommended value
FuseProtest the circuit from damage when the module is abnormalAccess the corresponding fuse accrding to customer needs
MOV1/VaristorProtest the circuit from damage when the module is abnormal14D333K
LDM1/Common mode inductanceEMI FilteringInductance: 2mH
CO,C1 Ceramic capacitorsFilter capacitor1uF/50V
E1,E2 Electrolytic capacitorFilter capacitor470uF/50V
LDM2/Differential mode inductanceEMI filtering4.7-68uH
CY1/Y2 Capacitance


* Fuses and varistors are basic parts of protection circuits (required).

* If the certification is required, the safety capacitor and common mode inductance cannot be omitted.

Output filtering


For usual requirements of ripple and noise, the peripheral recommendation is only C2; 

For strict requirements of ripple and noise, the above circuit is recommended. Notes:

(1) C2, C3 use high frequency low resistance electrolytic capacitor, and the total capacity can not exceed the maximum capacitive load indicated in the manual, otherwise the module will not start normally. (2) When the capacitive load is used, the minimum load of 3% must be guaranteed, otherwise the module output will be abnormal.

Component No.FunctionRecommended value
LDM3/Common mode inductanceAdjust the output ripple voltageInductance: 0.47-4.7uH according to the debugging result
LDM4/Common mode inductanceAdjust the output ripple voltageInductance: 0.47-4.7uH according to the debugging result
C2,C3 Electrolytic capacitorRipple voltage filtering68-220uF/50V
C4 Ceramic capacitorsRipple voltage filtering1uF/50V

Dimension and Weight


Input negativeInput positiveOutput positive----Output negative----

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