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Mean Well MDD01N-12 DC-DC Converter - 1W - 21.6~26.4V in ±12V out 42mA
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MDD01N-12 is the ±12V output model of this series: rated power 1W, typical efficiency 77%.
MDS01 and MDD01 series are 1W isolated and unregulated module type medical grade DC-DC converter with SIP7 package. It features international standard pins, a high efficiency up to 83%, wide working temperature range -40~+85℃, 6KVDC or 4.2KVAC I/P-O/P high isolation voltage, short circuit protection, etc. The models account for different input voltage 5V/12V/24V±10%, and various output voltage, 3.3V/ 5V/ 12 V/15V for single output and ±5V /±9 V/±12V/±15V for dual outputs, which are suitable for medical systems , ultra low leakage current.
Features
- SIP7 package with international standard pinout
- Operating temperature range -40 ~ +85℃
- Medical safety approved (1xMOPP/2xMOOP) according to ANSI/AAMI ES60601-1
- Low patient leakage current <2μA
- Protection: Short circuit(3 second max.)
- 6KVDC or 4.2KVAC hight I/O isolation (Reinforced isolation)
- Low cost
- 3 years warranty
Specifications
INPUT
- INPUT VOLTAGE (RANGE)
- Normal 24V (21.6 ~ 26.4V)
- VOLTAGE RANGE
- 21.6 ~ 26.4Vdc
- INPUT CURRENT (NO LOAD)
- 10mA
- INPUT CURRENT (FULL LOAD)
- 56mA
- SURGE VOLTAGE (100ms max.)
- 5Vin models : 9Vdc 12Vin models : 18Vdc 24Vin models : 30Vdc
- FILTER
- Internal capacitor
- PROTECTION
- Fuse recommended. 500mA Slow-Blow Type for all models
OUTPUT
- OUTPUT VOLTAGE
- ±12V
- OUTPUT CURRENT
- ±5 ~ 42mA
- EFFICIENCY (TYP.)
- 77%
- CAPACITOR LOAD (MAX.)* For each output
- *220μF
- VOLTAGE ACCURACY
- ±5.0%
- RATED POWER
- 1W
- RIPPLE & NOISENote.2
- 75mVp-p
- LINE REGULATIONNote.3
- 1.2% for 1% input variation
- LOAD REGULATIONNote.4
- ±10%
- SWITCHING FREQUENCY (Typ.)
- 100KHz
PROTECTION
- SHORT CIRCUIT
- 3 second max.
ENVIRONMENT
- COOLING
- Free-air convection
- WORKING TEMP.
- -40 ~ +85℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20% ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -55 ~ +125℃, 10 ~ 95% RH non-condensing
- TEMP. COEFFICIENT
- 0.02% / ℃ (0 ~ 85℃)
- SOLDERING TEMPERATURE
- 1.5mm from case of 1 ~ 3sec./260℃ max.
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- UL60601-1, EAC TP TC 020/2011 approved
- WITHSTAND VOLTAGE
- I/P-O/P:6KVDC or 4.2KVAC
- ISOLATION RESISTANCE
- I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
- ISOLATION LEVEL
- Primary-secondary: 1xMOPP / 2xMOOP when system input voltage is with 250VAC, 50/60Hz
- ISOLATION CAPACITANCE (Typ.)
- 5pF
- EMC EMISSION
-
Parameter Standard Test Level Conducted BS EN/EN55011(CISPR11) Class B Radiated BS EN/EN55011(CISPR11) Class B - EMC IMMUNITY
-
Parameter Standard Test Level ESD BS EN/EN61000-4-2 Level 2, ±8KV contact
OTHERS
- MTBF
- 3500Khrs MIL-HDBK-217F(25℃)
- DIMENSION (L*W*H)
- 19.5*9.8*12.5mm (0.77*0.386*0.492 inch)
- CASE MATERIAL
- Non-Conductive black plastic (UL 94V-0 rated)
- PACKING
- 4.2g ; 25pcs/per tube, 3000pcs/120 tube/per carton
Test conditions and notes6
- 1.All parameters are specified at normal input(L:5Vdc, M:12Vdc, N:24Vdc), rated load, 25℃ 70% RH ambient.
- 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μf & 47μf capacitor.
- 3.Line regulation is measured from low line to high line at rated load.
- 4.Load regulation is measured from 10% to 100% rated load.
- 5.Patient leakage current(2μA max.) and reinforced isolation is based on a 250VAC, 50/60Hz system input voltage.
- 6.The final equipment must be re-confirm that it still meet EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”(as available on http://www.meanwell.com)
Technical drawings
Typical applications
- Medical devices
- Medical oxygen monitor
- CT scanning
- Medical carts
- Oral care equipment
Downloads
Certificates4
Test reports1
FAQ
Can I use the MDD01N-12 in a 24V industrial controller that needs a low-power plus/minus 12V supply?
Yes, if the source remains within 21.6~26.4VDC and the application needs a fixed ±12V output. With a 1W rating and up to 42mA per output, it is intended for small support circuitry rather than heavier loads.
Is this model a good fit for sensor interface or measurement electronics that require ±12V rails?
It can be used for low-power sensor interface, conditioning, or measurement stages that need ±12V and operate from a 24V-class input. The output current of up to 42mA per output indicates it is best for light auxiliary electronics.
Would the MDD01N-12 work in compact embedded or automation boards where space is limited?
Yes, the 19.5 × 9.8 × 12.5 mm package and 0.0042 kg weight make it suitable for compact board-level use. It is most appropriate where a 21.6~26.4V source must feed a small ±12V rail.
What are the output differences between the MDD01N-12 and its sibling models?
The MDD01N family also includes MDD01N-05 at ±5V up to 100mA, MDD01N-09 at ±9V up to 56mA, and MDD01N-15 at ±15V up to 34mA. This MDD01N-12 version is specified for ±12V output at up to 42mA per output, with all models rated at 1W.
Can the MDD01N-12 be used in outdoor equipment cabinets or cold/hot environments?
The operating temperature range is -40°C to +85°C (with load derating at higher temperatures, see the derating curve), so it supports use across both low and high ambient temperatures. No IP rating is shown in the provided data, so direct outdoor exposure or water ingress performance is not specified.
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