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Mean Well MDD01N-09 DC-DC Converter - 1W - 21.6~26.4V in ±9V out 56mA
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MDD01N-09 is the ±9V output model of this series: rated power 1W, typical efficiency 79%.
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)
- 9mA
- INPUT CURRENT (FULL LOAD)
- 55mA
- 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
- ±9V
- OUTPUT CURRENT
- ±6 ~ 56mA
- EFFICIENCY (TYP.)
- 79%
- CAPACITOR LOAD (MAX.)* For each output
- *470μF
- 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-09 for a 24V automation panel that needs a small plus/minus 9V rail?
Yes, this model is intended for low-power circuits that need ±9V from a 21.6~26.4VDC input range. Its 1W rating and up to 56mA per output make it appropriate for small analog, sensing, or interface sections rather than larger loads.
Is the MDD01N-09 suitable for powering a compact analog front end in embedded equipment?
It is a reasonable fit when the analog front end needs a fixed ±9V and the available source stays within 21.6~26.4VDC. The small 19.5 × 9.8 × 12.5 mm footprint supports dense embedded layouts.
Would this converter work for low-power signal-processing or measurement circuitry on a 24V system?
Yes, provided the circuitry stays within the model's 1W power capacity and 56mA-per-output limit. That makes it more suitable for measurement, conditioning, or low-level electronics than for higher-current field devices.
How does the MDD01N-09 compare to the other MDD01N versions?
All MDD01N variants are 1W models, but the output options differ: MDD01N-05 is ±5V at up to 100mA, MDD01N-12 is ±12V at up to 42mA, and MDD01N-15 is ±15V at up to 34mA. The MDD01N-09 provides ±9V output at up to 56mA per output.
Is the MDD01N-09 appropriate for outdoor or extreme-temperature applications?
The converter is rated for operation from -40°C to +85°C (with load derating at higher temperatures, see the derating curve), which supports use in equipment exposed to substantial temperature swings. However, the provided specs do not list an IP rating, so exposed wet or outdoor use is not specifically defined here.
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