# POWER SUPPLY, AC-DC, 12V, 18.33A

![Product image](https://novapart.co/image/farnell:3604628/)

**URL**: https://novapart.co/products/MDS-300APB12%20AA/power-supply-ac-dc-12v-1833a
**SKU**: MDS-300APB12 AA
**Manufacturer**: DELTA ELECTRONICS
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC Open Frame Power Supplies
**Price**: €102.7500
**Stock**: 10+
**Lead Time**: 401 days (indicative)

## Description

Power Supply Applications:ITE & Medical; No. of Outputs:1 Output; Power Rating (Forced Cooling):-; Power Rating (Convection Cooling):220W; Input Voltage VAC:90V AC to 52AH7303

## Specifications

| Parameter | Value |
|---|---|
| Product Range | MDS Series |
| No. Of Outputs | 1 Output |
| Input Voltage Vac | 90V AC to 264V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 18.33A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Current - Output 4 | - |
| Output Voltage - Output 1 | 12V |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE & Medical |
| Power Rating (Forced Cooling) | - |
| Power Rating (Convection Cooling) | 220W |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3604628/)

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## **MDS-300APB12 AA** 

## **Highlights & Features** 

- Safety Approvals to IEC 60601-1 3.1rd ed. & IEC 62368-1 

- Compliant with IEC 60601-1-2 4th Ed. Requirements 

- Up to 220 Watt Convection in 3" x 5" x 1.4" Package 

- • Up to 500 K Hrs MTBF 

- Suited for Type BF Medical Products 

- 2 × MOPP isolation 

## **Safety Standards** 

CB Certified for worldwide use 

**Model Number:** MDS-300APB12 AA **Unit Weight:** 405 g (0.89 lb.) **Dimensions (L x W x H):** 127.3 x 76.5 x 36.1 mm (5 x 3 x 1.4 inch) 

## **General Description** 

Delta’s new MDS-300APB12 AA open frame design offers a high energy density (14.3 Watts/in[3] ) 3x5 inch design for Type BF patient access medical products.  With operating parameters of  90 to 264 Vac universal input voltage, temperatures of -10 to +70 degrees centigrade, and altitudes of up to 5000 meters (16,400 feet), the design is well suited for a variety of  both medical and non-medical applications. Other features include input surge of 300 Vac, low leakage current, no-load input power < 0.5 Watt, and 500K hour MTBF. This product is certified for EMC standards EN/BS EN 55011 for industrial, scientific and medical (ISM) radio-frequency equipment, and EN/BS EN 55032 for Industrial Technology Equipment (ITE) radio-frequency equipment. 

An enhanced feature set, includes a 5 Volt/0.5 amp standby output, remote on/off, remote sense, and a power good signal that are included as part of the standard product. 

The design, which has protection against shock compliant with 2XMOPP and Type BF requirements, has both medical (with risk report available), and ITE safety approvals, including cURus (US & Canada)/TUV; plus, CB certificates with all national deviations.  Full compliance with RoHS Directive for environmental protection is included. The unit comes in a standard 3x5 inch footprint, with height suitable for 1U applications. Robust terminals are capable of multiple connections of the main output to the end product. 

**Model Information** (With 5V/0.5A standby available) 

**==> picture [570 x 219] intentionally omitted <==**

**----- Start of picture text -----**<br>
Model  Number Input Voltage   Output  Voltage Convection Current Output    Forced Air Current Output<br>MDS-300APB12 AA  90-264 Vac  12 Vdc  0-18.33 A  0-25 A (with 10CFM forced air)<br>Model Numbering<br>| lI | | | | | | | 1] 1]<br>| MDS  1} | 300  | | A  | | P  | | B  | | 12  | } __  |<br>|<br>Delta Medical Power  Max wattage in the  Family Code  Product Type  Input Type Code Output Voltage  AA: With Remote On/Off<br>Supply product series.  300 → 300 W  A ~  Z P: Open Frame  B: 3 pin Class I  12 for 12 V  Refer to page 7<br>||<br>All parameters are specified at 25°C ambient unless otherwise noted.<br>1<br>|   www.DeltaPSU.com (August 2022, Rev. 23)<br>Av neta<br>**----- End of picture text -----**<br>


**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## **Specifications** 

## Input Ratings / Characteristics 

|**Specifications**<br>Input Ratings / Characteristics||
|---|---|
|Nominal Input Voltage|100-240 Vac|
|Input Voltage Range|90-264 Vac|
|Nominal Input Frequency|50-60 Hz|
|Input FrequencyRange|47-63 Hz|
|Input Current(max)|4 A|
|Input Surge Voltage(max)|300 Vac for 100 ms|
|Full load Efficiency (typ.)|91.3% @ 115 Vac/60 Hz<br>92.6%@230 Vac/50 Hz,Reference Fig.1|
|Standby Power (max)|0.5 W (only standby working with Inhibit signal high)<br>@115 Vac/60 Hz,230 Vac/50 Hz|
|Inrush Current(max)|40 A@230 Vac, cold start|
|Input-PE(protective earth)leakage current(max)|0.1 mA@NC1), 0.3 mA@SFC1)|
|Output-PE(protective earth)leakage current for Type BF application(max)|0.1 mA@NC1), 0.5 mA@SFC1)|
|Power Factor(min)|0.9@115 V/50 Hz, 230 V/50 Hz, full load|



1) NC: normal condition, SFC: single fault condition 

## Leakage Current 

|Leakage Current|||||
|---|---|---|---|---|
|Input-PE Leakage Current|100 Vac/60Hz(Typ)264 Vac/60 Hz|264 Vac/60 Hz(Typ)|) Delta Limit|IEC60601-1 Limit|
|Normal Condition  17.5 uA|Normal Condition  17.5 uA|43.5 uA|100 uA max|5000 uA max|
|Single Fault Condition  54.5 uA|le Fault Condition  54.5 uA|153 uA|300 uA max|10000 uA max|
|Output-PE Leakage Current for Type BF application|||||
|Normal Condition  29.5 uA|Normal Condition  29.5 uA|81.5 uA|100 uA max|100 uA max|
|Single Fault Condition  43.7 uA|le Fault Condition  43.7 uA|129.4 uA|500 uA max|500 uA max|



**Fig.1 Efficiency versus output load** 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

2 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## Output Ratings / Characteristics 

|Output Ratings / Characteristics||
|---|---|
|Nominal Output Voltage(Vrated)|12 V|
|Total Regulation|± 3%|
|Output Power|300 W 10 CFM air, upto 220 W convection air|
|Line Regulation(max)|± 0.5%|
|Load Regulation(max)|± 1%|
|Ripple & Noise (typ.)|1% pk-pk Vrated @ 300 W load<br>(Refer to  Fig. 2 & Fig. 3)|
|Start-upTime(max)|2000 ms@115 Vac|
|Hold-up Time (min)|10 ms @ 100 Vac and 115 Vac, with 300 W load<br>20 ms@100 Vac and 115 Vac,with 190 W load|
|Dynamic Response(Overshoot & Undershoot O/P Voltage)|± 5%@with 50-100% load change|
|Capacitive load(max)|1500 uF|
|Rise time(max)|100 ms|
|Remote Sense|Up to 500 mV compensation for voltage drop across<br>external wire connections to load.<br>Short and reverse connection protected.|



- (a) 115V (measured value=80mV) (b) 230V(measured value=81.6mV) 

**Fig.2  Ripple & Noise example, 20MHz BW** 

Output Ratings / Characteristics—Standby Output 

|Output Ratings / Characteristics—Standby Output||
|---|---|
|Nominal Output Voltage of standbyoutput(Vrated)|5 V|
|Total Regulation of standbyoutput|± 3%|
|Ripple & Noise of  standbyoutput|100 mV max(Refer to Fig. 3)|



**==> picture [425 x 89] intentionally omitted <==**

**----- Start of picture text -----**<br>
PSU Load<br>0.47uF Ceramic Scope<br>5cm<br>10uF Electrolytic<br>a<br>Test Fixture<br>**----- End of picture text -----**<br>


**Fig. 3 Ripple & Noise measurement circuit** 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

3 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

|Environment||
|---|---|
|Surrounding Air Temperature<br>Operating|Absolute Maximum/Minimum Rating.<br>-10°C to +70°C. Linear power derate from 100% load at<br>50°C,  to 50% load at 70°C<br>Note: see power de-rating curves below|
|Storage|-40°C to +85°C|
|OperatingHumidity|5-95% RH(Non-Condensing)|
|OperatingAltitude|5,000 meters(16,400 feet or 50 kPa)|
|Non-operatingAltitude|5,000 meters(16,400 feet or 50 kPa)|
|Shock Test(Non-Operating)|50 G,11 ms,3 shocks for each direction|
|Vibration(Operating)|5-500 Hz,2 Grms,15 minute for each three axis|



Power De-rating curve 

Load De-rating Fixture  and Test Setup. Fan is DELTA Part Number AFB0512HHD. 

**==> picture [72 x 5] intentionally omitted <==**

**----- Start of picture text -----**<br>
Airflow Direction 10CFM<br>**----- End of picture text -----**<br>


All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

4 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

Protections (for both 12 Volt and 5Volt Standby outputs, unless otherwise indicated) 

|Overvoltage (max)|||Main output  125% of rated voltage, Latch Mode|
|---|---|---|---|
||||Standby 125% of rated voltage, Latch Mode|
|Over load / Over current (max)|||Main output 160% of rated current|
||||Standby 1.06A max|
||||Hiccup Mode(Non-Latching, Auto-Recovery)|
|Over Temperature|||Latch Mode for Main output|
|Short Circuit|||Hiccup Mode|
||||(Non-Latching,Auto-Recovery)|
|Reliability Data||||
|MTBF(Minimum) at 115 Vac, 220 W, 35 °C|MTBF(Minimum) at 115 Vac, 220 W, 35 °C|Convection Air Flow|500K hrs based on Telecordia SR-332|
|Operating life(Minimum) at 115 Vac, 220 W, 25°C Convection Air Flow|Operating life(Minimum) at 115 Vac, 220 W, 25°C Convection Air Flow|Operating life(Minimum) at 115 Vac, 220 W, 25°C Convection Air Flow|26,280 hrs|
|Safety Standards / Directives||||
|Medical Safety|||IEC 60601-1 2nd, 3rdand 3.1rdedition CB report|
||||IEC 60601-1 edition 3.1rd(2012), EN 60601-1 (2006) +|
||||A11 + A1 + A12, CAN/CSA-C22.2 NO. 60601-1:14,|
||||ANSI / AAMI ES 60601-1:2005/(R)2012|
|ITE Safety|||IEC 60950-1, IEC 62368-1 CB report|
||||TUV 60950-1|
||||UL 60950-1+CAN / CSA 60950-1|
|CE|||In conformance with EMC Directive 2014/30/EU and|
||||Low Voltage Directive 2014/35/EU|
||||EN 60601-1: 2006 + A11: 2011 + A1L 2013 + A12: 2014 &|
||||EN 60601-1-2: 2015|
|UKCA|||In conformance with Electrical Equipment (Safety)|
||||Regulations 2016 and Electromagnetic Compatibility|
||||Regulations 2016, Medical Devices Regulations 2002|
||||(UK MDR 2002)|
|Galvanic Isolation||Input to/Output (2XMOPP)|4000 Vac|
|||Input to/Ground (1XMOPP)|1500 Vac1)|
||Output to/Ground (1XMOPP)||Output to/Ground (1XMOPP)<br>1500 Vac ( Type BF application rated)|



1) PSU can support PoE applications with Primary to FG 2500 Vac test. 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

5 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## EMC (Compliant with IEC-60601-1-2 4[th] Ed. requirements) 

|EMC (Compliant with IEC-60601-1-2 4[th]Ed. requirements)||
|---|---|
|EMC / Emissions|EN/BS EN 55011, EN/BS EN 55032, FCC Title 47: Class B|
|Harmonic Current Emissions<br>IEC61000-3-2|Meet Class D limit|
|Immunity to||
|Voltage Flicker<br>IEC61000-3-3||
|Electrostatic Discharge<br>IEC61000-4-2|Level 4 Criteria A1)<br>Air Discharge: 15 kV<br>Contact Discharge: 8 kV|
|Radiated Field<br>IEC61000-4-3|Criteria A1)<br>80 MHz-2700 MHz, 10 V/m AM modulation<br>385 MHz-5785 MHz, 28 V/m Pulse mode and other<br>modulation|
|Electrical Fast Transient / Burst<br>IEC61000-4-4|Level 3 Criteria A1):2 kV|
|Surge<br>IEC61000-4-5|Level 3 Criteria A1)<br>Common Mode3): 2 kV<br>Differential Mode4): 1 kV|
|Conducted<br>IEC61000-4-6|Level 2 Criteria A1)<br>150 kHz-80 MHz, 3 Vrms, 6 Vrms at ISM bands and<br>Amateur radio bands|
|Power Frequency Magnetic Fields<br>IEC61000-4-8|Criteria A1)<br>Magnetic field strength 30 A/m|
|Voltage Dips<br>IEC61000-4-11|Criteria A1)<br>0% UT, 0.5 cycle (10 ms),<br>0o/45o/90o/135o/180o/225o/270o/315o/360o<br>Criteria B2)(Criteria A1)with 190 W load)<br>0% UT, 1 cycle (20ms), 0o<br>Criteria B2)<br>70% UT, 25 cycle (500 ms), 0o<br>Criteria B2)<br>0% UT,250 cycle (5000ms), 0o|



- 1) Criteria A: Normal performance within the specification limits 

- 2) Criteria B: Output out of regulation, or shuts down during test. Automatically restore to normal operation after test. 

- 3) Asymmetrical: Common mode (Line to earth) 

- 4) Symmetrical: Differential mode (Line to line) 

- 5) Unless otherwise noted, requirements apply at 300 watt output load 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

6 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## **Dimensions** 

Mechanical Drawing 

## **Notes** 

## ― Dimensions are in mm (inches) 

- CN1 mates with Molex housing 26-03-4030 and Molex series 6838 crimp terminals. Input Line can also be connected to Input Neutral, and Input Neutral can be connected to Input Line. 

- CN102 & CN103(Output Connector) : Cross recessed pan head screws M3X0.5x10, with spring washers and flat washers, force required to tighten the screws is 7~8 kgf.cm(6.1~7.0inch-lb) 

- CN2 :  PINGOOD JP-13T mates with KST:FDFNYD1-187 or other applicable connectors. 

- CN101 mates with JST housing SHR-10V-S-B & SHR-10V-S and JST SSH-003T-P0.2-H crimp terminals. 

|Control and STANDBY connector CN101|Control and STANDBY connector CN101|
|---|---|
|Pin 1|Remote sense +|
|Pin 2|Remote sense –|
|Pin 3|Power Good +|
|Pin 4|Power Good -(DC RTN)|
|Pin 5|Remote ON_OFF/INHIBIT +|
|Pin 6|Remote ON_OFF/INHIBIT -(DC<br>RTN)|
|Pin 7|5V Standby|
|Pin 8|DC RTN|
|Pin 9|5V Standby|
|Pin 10|DC RTN|



- For optimum EMI performance, the two mounting points shown in mechanical drawing need to be connected together to system earth case. Protective bonding conductor from the end product protective earth terminal (if any) can be tied to CN2 for open frame model. 

|**MDS-300APB12 **|**MDS-300APB12 **||
|---|---|---|
||||
|AA||Delta Standard|



All parameters are specified at 25°C ambient unless otherwise noted. 7 **www.DeltaPSU.com (August 2022, Rev. 23)** 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## **Functions** 

## Start-up Time 

The time required for the output voltage to reach 90% of its final steady state value, after the input voltage is applied. 

## Rise Time 

The time required for the output voltage to change from 10% to 90% of its final steady state value. 

## Hold-up Time 

Time between the collapse of the AC input voltage, and the output falling to 90% of its steady state value. 

##  **Graph illustrating the Start-up Time, Rise Time, and Hold-up Time** 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

8 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## Dynamic Response (12 Volt Output) 

The power supply output voltage will remain within ±5% of its steady state value, when subjected to a dynamic load 50 to 100% of its rated current. 

##  **50 to 100% Load** 

## Overload & Over current Protections 

The power supply’s Overload (OLP) and Over current (OCP) Protections will be activated before the 12 volt outputs’ current exceeds 160% of IO (Max load). Upon such an occurrence, VO will start to drop. Once the power supply has reached its maximum power limit, the protection will be activated and the power supply will go into “Hiccup mode” (Auto-Recovery). The power supply will recover once the fault condition causing the OLP and OCP is removed and IO is back within the specified limit. For the standby output, the performance is the same, with the exception that the protection will be activated before the output current exceeds 1.06 amps. 

## Inrush Current 

Inrush current is the input current that occurs when the input voltage is first applied. For AC input voltages, the maximum peak value of inrush current will occur during the first half cycle of the applied AC voltage. This peak value decreases exponentially during subsequent cycles of AC voltage. 

Additionally, if the 12 Volts’ Iout is >100%; but <160% for a prolonged period of time (depending on the load), the Over Temperature Protection (OTP) will be activated due to high temperature on critical components. The power supply will then go into latch mode. 

## Short Circuit Protection 

The power supply’s output OLP/OCP function also provides protection against short circuits. When a short circuit is applied, the output current will operate in “Hiccup mode”, as shown in the illustration in the OLP/OCP section on this page. The power supply will return to normal operation after the short circuit is removed. 

## Overvoltage Protection 

The power supply’s overvoltage circuit will be activated when its internal feedback circuit fails. The output voltage shall not exceed its specifications defined on Page 5 under “Protections”. Power supply will latch off, and require removal/re-application of input AC voltage in order to restart. 

## Over Temperature Protection 

As mentioned above, the power supply also has Over Temperature Protection (OTP). This is activated when the overload condition persists for an extended duration and the output current is below the overload trigger point but >100% load. In the event of a higher operating temperature condition at 100% load, the power supply will run into OTP when the surrounding air temperature is higher than the operating temperature. When activated, the output voltage will go into latch mode until the input voltage is removed; then, reapplied, and the surrounding air temperature drops to its normal operating temperature. 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

9 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## Power Good 

Power Good+ pin is an open collector transistor (40 V/600 mA rating). A resistor (suggested value 10K ohm, 1/8 W) can be added between 5 V STANDBY pin (or, other available pull-up voltage that is no greater than 30 V) and the Power Good+ pin (refer to figure below). Value of pull-up resistor may have to be adjusted, depending on voltage used, and other end-use conditions of the Power Good+ pin connection to the product.  When AC input is on, Power Good+ pin will be high. When AC input is off, Power Good+ pin will be low. There will be a minimum of 5 milliseconds (at 220 W load) between the time the power good goes to low level, and the time when the output reaches 90% of its rated value. 

## Remote On_Off/Inhibit 

Remote ON_OFF/INHIBIT can be used to enable or disable only the main output. When the main output is disabled, the +5V Standby output will continue to operate. This signal can be pulled down to a low level of 0.3 volts, or shorted to DC-Return, in order for the main output to be enabled; and, floated (no connection to the signal), or pulled up to a value greater than or equal to 3 volts, in order to disable the main output 

## Remote Sense 

Remote sense feature can be used to compensate for the extra voltage drop on output wires that are connected from the main output terminals, to the load. With wires connected from the remote sense pins, at the same locations as the wires from the main output, the remote sense function can compensate up to 500 mV voltage drop. The power supply will not be damaged if the remote sense pins are shorted, or if a reverse/inverted polarity connection is made to the load 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

10 

**TECHNICAL DATASHEET** 

## **Medical AC-DC Open Frame Power Supply** 12 V 300 W with 5 V/0.5 A Standby / MDS-300APB12 AA 

## **Certificate** 

Delta has been certified as meeting the requirement of ISO 13485: 2003 and EN ISO 13485:2012 for the design and manufacture of switching power supply and adaptor for medical device. 

In addition to a UL Total Certification Program (TCP) approved client laboratory for IEC 62368-1. Delta also has participated UL Client Test Data Program (CDTP) for IEC 60601 

## **Attention** 

Delta provides all information in the datasheets on an “AS IS” basis and does not offer any kind of warranty through the information for using the product. In the event of any discrepancy between the information in the catalog and datasheets, the datasheets shall prevail (please refer to www.DeltaPSU.com for the latest datasheets information). Delta shall have no liability of indemnification for any claim or action arising from any error for the provided information in the datasheets. Customer shall take its responsibility for evaluation of using the product before placing an order with Delta. 

Delta reserves the right to make changes to the information described in the datasheets without notice. 

## **Manufacturer and Authorized Representatives Information** 

## Manufacturer 

## Thailand 

Delta Electronics (Thailand) PCL. 909 Pattana 1 Rd., Muang, Samutprakarn, 10280 Thailand 

## Taiwan 

Delta Electronics, Inc. 

3 Tungyuan Road, Chungli Industrial Zone, Taoyuan County 32063, Taiwan 

## Authorized Representatives 

## The Netherlands 

Delta Greentech (Netherlands) B.V. Zandsteen 15, 2132 MZ Hoofddorp, The Netherlands 

## United Kingdom 

Delta Electronics Europe Limited 1 Redwood Court, Peel Park Campus, East Kilbride, Glasgow, G74 5PF, United Kingdom 

All parameters are specified at 25°C ambient unless otherwise noted. **www.DeltaPSU.com (August 2022, Rev. 23)** 

11 



## Links

- [View this product on Novapart](https://novapart.co/products/MDS-300APB12%20AA/power-supply-ac-dc-12v-1833a)
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- [Supplier page](https://es.farnell.com/delta-electronics-power/mds-300apb12-aa/power-supply-ac-dc-12v-18-33a/dp/3604628)
---

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