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Mean Well MDD02N-12 DC-DC Converter - 2W - 21.6~26.4V in ±12V out 83mA

Name: Mean Well MDD02N-12 DC-DC Converter - 2W - 21.6~26.4V in ±12V out 83mA
Brand: Mean Well
SKU: MDD02N-12
Price: 6.67 USD
Availability: InStock

SKU MDD02N-12

$6.67 USD

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Overview

MDD02N-12 is the ±12V output model of this series: rated power 2W, typical efficiency 82%.

MDS02 and MDD02 series are 2W isolated and unregulated module type medical grade DC-DC converter with SIP 7 package. It features international standard pins, a high efficiency up to 8 5 %, wide working temperature range -40~+ 85℃, 6 KVDC or 4 . 2KVAC I/P-O/P hight isolation voltage, short circuit protection, etc. The models account for different input voltage 5V/12V/24V±10%, and various output voltage, 5V/12V/ 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 4.2VAC hight I/O isolation (Reinforced isolation)
Low cost
3 years warranty

Specifications

MDD02N-12Specifications from the official datasheet (2022-05-24 edition)

INPUT

INPUT VOLTAGE (RANGE): Normal 24V (21.6 ~ 26.4V)
INPUT CURRENT NO LOAD: 11mA
INPUT CURRENT FULL LOAD: 103mA
VOLTAGE RANGE: 21.6 ~ 26.4Vdc
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: ±9 ~ 83mA
EFFICIENCY (TYP.): 82%
CAPACITOR LOAD (MAX.)^{* For each output}: *220μF
VOLTAGE ACCURACY: ±5.0%
RATED POWER: 2W
RIPPLE & NOISE^Note.2: 75mVp-p
LINE REGULATION^Note.3: 1.2% for 1% input variation
LOAD REGULATION^Note.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 ( Note.6)

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

Parameter	Standard	Test Level
Conducted	BS EN/EN55011(CISPR11)	Class B
Radiated	BS EN/EN55011(CISPR11)	Class B

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

MDD02N-12 Mechanical Specification — Mechanical Specification

MDD02N-12 EMC Suggestion — EMC Suggestion

Typical applications

Medical devices
Medical oxygen monitor
CT scanning
Medical carts
Oral care equipment

Downloads

Datasheet1

MDD02N-12 datasheetMDS02,MDD02-SPEC.PDF · 2022-05-24 edition PDF Download

Certificates3

Mean Well E227340 UL Certificate PDF Download

Mean Well MDD01-02- LVD Certificate PDF Download

Mean Well MDD01-02-UK-dec Certificate PDF Download

Test reports1

Mean Well MDD02N-12 Test Report PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the MDD02N-12 in a 24V industrial control cabinet that needs isolated +/-12V rails for analog or interface circuits?

It can fit 24V-class control systems that stay within the converter's 21.6~26.4Vdc input range and need an unregulated +/-12V output. The available output is 2W total with up to 83mA per output, so it is suited to low-power analog, sensing, or interface sections rather than heavier loads.

Is the MDD02N-12 appropriate for embedded control boards that need a small +/-12V auxiliary supply?

This model is sized for compact embedded designs because it provides 2W in a 19.5 x 9.8 x 12.5 mm package. Its unregulated +/-12V output and 0.0042 kg weight make it a fit for low-power onboard auxiliary rails where space is limited.

Can this converter be used for low-power instrumentation or signal-conditioning circuits in automation equipment?

Yes, it is aligned with low-power instrumentation use where a +/-12V rail is needed and the load stays within 2W and 83mA per output; note the output is unregulated (load regulation ±10%). The -40°C to +85°C operating range also supports use in demanding industrial temperature conditions.

Is the MDD02N-12 suitable for outdoor equipment or washdown environments?

The listed specs do not include an IP rating, so this converter should not be treated as outdoor- or washdown-rated by itself. Its environmental data is the -40°C to +85°C operating range; enclosure-level protection would need to come from the host system.

How does the MDD02N-12 compare with the other MDD02N models?

Within the MDD02N series, all models are 2W parts with 21.6~26.4V input and different outputs: MDD02N-05 is +/-5V, +/-20~200mA; MDD02N-09 is +/-9V, +/-12~111mA; MDD02N-12 is +/-12V, +/-9~83mA; and MDD02N-15 is +/-15V, +/-7~67mA. The main selector in this group is the output voltage and output current for the required rail.

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