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Mean Well MDS15C-12 DC-DC Converter - 15W - 36~75V in 12V out 1.25A

SKU MDS15C-12

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Overview

MDS15C-12 is the 12V output model of this series: rated power 15W, typical efficiency 87%.

MDS15 series is 15W isolated and regulated module type medical grade DC-DC converter with 2"x1" package. It features international standard pins, a high efficiency up to 88%, wide working temperature range -40~+90℃, 4KVAC I/P-O/P high isolation voltage, compliance with IEC60601-1 medical standard, continuous-mode short circuit protection, etc. The models account for different input voltage 9~18V, 18~36V and 36~75V 2:1 wide input range, and various output voltage 5V/12V/15V/24V, which are suitable for medical systems, ultra low leakage current.

Features

DIP 2"x1" package with international standard pinout
2:1 wide input range
Low patient leakage current <5μA
Wide operating temperature range -40 ~ +90℃
Medical safety approved (2xMOPP) according to IEC60601-1
No minimum load required
Protections: Short circuit (Continuous) / Overload / Input under voltage
4000VAC high I/O isolation (Reinforced isolation)
3 years warranty

Specifications

MDS15C-12Specifications from the official datasheet (2024-04-30 edition)

MODEL SELECTION TABLE

INPUT VOLTAGE (RANGE): Normal 48V (36 ~ 75V)
INPUT CURRENT NO LOAD: 5mA
INPUT CURRENT FULL LOAD: 350mA
OUTPUT VOLTAGE: 12V
OUTPUT CURRENT: 1250mA
EFFICIENCY (Typ.): 87%
CAPACITOR LOAD (MAX.): 1000μF

INPUT

VOLTAGE RANGE: 36~75Vdc
SURGE VOLTAGE (100ms max.): 12Vin models : 25Vdc, 24Vin models : 50Vdc, 48Vin models : 100Vdc
FILTER: Pi type
PROTECTION: Fuse recommended. 12Vin models: 4A delay time Type, 24Vin models: 2A delay time Type, 48Vin models: 1A delay time Type

OUTPUT

VOLTAGE ACCURACY: ±1%
RATED POWER: 15W
RIPPLE & NOISE^Note.2: 60mVp-p
LINE REGULATION^Note.3: ±0.5%
LOAD REGULATION^Note.4: ±0.5%
SWITCHING FREQUENCY (Typ.): 12Vin/24Vin:250KHz, 48Vin:300KHz

PROTECTION

SHORT CIRCUIT: Protection type : Continuous, automatic recovery
OVERLOAD: 110 ~ 185% rated output power Protection type : Recovers automatically after fault condition is removed
UNDER VOLTAGE LOCKOUT: 12Vin: 7.5Vdc, 24Vin: 15Vdc, 48Vin: 33Vdc

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: -40 ~ +90℃ (Refer to "Derating Curve")
CASE TEMPERATURE: +110℃ max.
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -55 ~ +125℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: 0.03% / ℃ (0 ~ 70℃)
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: IEC60601-1(LVD) 3rd edition, EAC TP TC 020/2011(EAC TP TC 004 for 48Vin type only) approved
WITHSTAND VOLTAGE: I/P-O/P 4KVAC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE (Typ.): 100pF
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55011 Class A without external components
Radiated BS EN/EN55011 Class A without external components
EMC IMMUNITY: Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 1, ±15KV air, ±8KV contact
Radiated Susceptibility BS EN/EN61000-4-3 Level 1, 10V/m
EFT/Bursts BS EN/EN61000-4-4 Level 1, ±2KV
Surge BS EN/EN61000-4-5 Level 1, ±1KV Line-Line, ±2KV Line-GND
Conducted BS EN/EN61000-4-6 Level 1, 10Vrms(e.m.f.)
Magnetic Field BS EN/EN61000-4-8 Level 2, 10A/m

Parameter	Standard	Test Level
Conducted	BS EN/EN55011	Class A without external components
Radiated	BS EN/EN55011	Class A without external components

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 1, ±15KV air, ±8KV contact
Radiated Susceptibility	BS EN/EN61000-4-3	Level 1, 10V/m
EFT/Bursts	BS EN/EN61000-4-4	Level 1, ±2KV
Surge	BS EN/EN61000-4-5	Level 1, ±1KV Line-Line, ±2KV Line-GND
Conducted	BS EN/EN61000-4-6	Level 1, 10Vrms(e.m.f.)
Magnetic Field	BS EN/EN61000-4-8	Level 2, 10A/m

OTHERS

MTBF: 1060Khrs MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 50.8*25.4*12mm (2*1*0.47 inch)
CASE MATERIAL: UL94V-0 plastic case
PACKING: 30g; 18pcs/per tube, 432pcs/24 tube max./carton

Test conditions and notes6

1.All parameters are specified at normal input(A:12Vdc, B:24Vdc, C:48Vdc), 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 0% to 100% rated load.
5.2xMOPP base on a working voltage of 250Vac between Primary to Secondary.
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

MDS15C-12 Pin Configuration — Pin Configuration

MDS15C-12 Derating Curve — Derating Curve

Typical applications

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

Downloads

Certificates3

Certificate (MDS15-20-EMC)(EN) PDF Download

Certificate (MDS15-20-CE-dec)(EN) PDF Download

Certificate (MDS15-20-UK-dec)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the MDS15C-12 to derive 12V for industrial control or monitoring electronics?

Yes, this converter provides a constant 12V output at 1.25A with 15W total power. It is suited to low-power industrial control, monitoring, and embedded electronics that are supplied from a 36-75Vdc input range.

Is the MDS15C-12 suitable for embedded systems that need a dedicated 12V auxiliary rail?

Yes, it is built for constant-voltage 12V output and is sized for lighter auxiliary loads up to 15W. That makes it a reasonable choice for embedded processors, interface modules, and small support circuits that need regulated 12V power.

Can this model be used in telecom or automation equipment with a higher-voltage source and 12V subcircuits?

It can fit applications where the source stays within the listed 36-75Vdc input range and the downstream section needs 12V constant voltage. The 1.25A output current supports low-power 12V subcircuits rather than larger 12V loads.

Is the MDS15C-12 designed for exposed outdoor environments?

The operating temperature range is -40 C to +90 C (load derating applies at higher ambient temperatures per the derating curve), so it is specified for wide temperature variation. Still, no IP rating is shown in the provided data, so the specifications do not establish outdoor sealing or direct exposure protection.

What are the key output options in the MDS15C family?

The family keeps the same 15W platform while changing output voltage and current. The listed models are MDS15C-05 at 5V and 3A, MDS15C-12 at 12V and 1.25A, MDS15C-15 at 15V and 1A, and MDS15C-24 at 24V and 625mA.

Payment & Security

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Model	Power	Voltage	Current	IP Rating
Mean Well MDS15C-24 DC-DC Converter - 15W - 36~75V in 24V out 625mA	15W	24V	625 Milliampere	IP20	View
Mean Well MDS15C-15 DC-DC Converter - 15W - 36~75V in 15V out 1A	15W	15V	1A	IP20	View
Mean Well MDS15C-05 DC-DC Converter - 15W - 36~75V in 5V out 3A	15W	5V	3A	IP20	View
Mean Well MDS15B-24 DC-DC Converter - 15W - 18~36V in 24V out 625mA	15W	24V	625 Milliampere	IP20	View
Mean Well MDS15B-15 DC-DC Converter - 15W - 18~36V in 15V out 1A	15W	15V	1A	IP20	View
Mean Well MDS15B-12 DC-DC Converter - 15W - 18~36V in 12V out 1.25A	15W	12V	1.25A	IP20	View
Mean Well MDS15B-05 DC-DC Converter - 15W - 18~36V in 5V out 3A	15W	5V	3A	IP20	View
Mean Well MDS15A-24 DC-DC Converter - 15W - 9~18V in 24V out 625mA	15W	24V	625 Milliampere	IP20	View
Mean Well MDS15A-15 DC-DC Converter - 15W - 9~18V in 15V out 1A	15W	15V	1A	IP20	View
Mean Well MDS15A-12 DC-DC Converter - 15W - 9~18V in 12V out 1.25A	15W	12V	1.25A	IP20	View
Mean Well MDS15A-05 DC-DC Converter - 15W - 9~18V in 5V out 3A	15W	5V	3A	IP20	View

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