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Mean Well DLC03A-12 DC-DC Converter - 3W - 9~18V in ±12V out 125mA

SKU DLC03A-12

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Overview

DLC03A-12 is the ±12V output model of this series: rated power 3W, typical efficiency 82%.

SLC03 and DLC03 series are 3W isolated and regulated module type DC-DC converter with DIP16 package. It features international standard pins, a high efficiency up to 8 2 %, wide working temperature range -40~+ 85℃, 1 . 5 KVDC I/P-O/P isolation voltage, the compliance to BS EN/EN55032 radiated Class B without additional components, 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 for single output and ±5V/±12V/±15V for dual outputs, which are suitable for all kinds of systems, s uch as industrial control, telecommunication field, distributed power architecture, and so on.

Features

DIP16 package with industry standard pinout
2:1 wide input range
Operating temperature range -40 ~ +85℃
No minimum load required
Comply to BS EN/EN55032 radiated Class B without additional components
High efficiency up to 82%
Protections: Short circuit (Continuous) / Overload / Input under voltage
1.5KVDC I/O isolation
3 years warranty

Specifications

DLC03A-12Specifications from the official datasheet (2024-08-02 edition)

INPUT

INPUT VOLTAGE (RANGE): 12V (9 ~ 18V)
INPUT CURRENT NO LOAD: 32mA
INPUT CURRENT FULL LOAD: 305mA
VOLTAGE RANGE: 9~18Vdc ,
SURGE VOLTAGE (100ms max.): 12Vin models : 25Vdc ; 24Vin models : 50V ; 48Vin models : 100Vdc
FILTER: Internal capacitor
PROTECTION: Fuse recommended. 12Vin models: 1A Slow-Blow Type, 24Vin models: 0.5A Slow-Blow Type, 48Vin models: 200mA Slow-Blow Type
INTERNAL POWER DISSIPATION: 1000mW

OUTPUT

OUTPUT VOLTAGE: ±12V
OUTPUT CURRENT: ±0 ~ 125mA
EFFICIENCY (TYP.): 82%
CAPACITOR LOAD (MAX.): 220μF (for each output)
VOLTAGE ACCURACY: ±2%
RATED POWER: 3W
RIPPLE & NOISE^Note.2: 50mVp-p
LINE REGULATION^Note.3: ±0.2%
LOAD REGULATION^Note.4: ±0.5%
SWITCHING FREQUENCY (Typ.): 100KHz

PROTECTION

SHORT CIRCUIT: Protection type : Continuous, automatic recovery
OVERLOAD: 150 ~ 250% rated output power Protection type : Recovers automatically after fault condition is removed
UNDER VOLTAGE LOCKOUT Start-up voltage: 12Vin: 8.8Vdc, 24Vin: 17Vdc, 48Vin: 34Vdc
UNDER VOLTAGE LOCKOUT Shutdown voltage: 12Vin: 7Vdc, 24Vin: 14Vdc, 48Vin: 30Vdc

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: -40 ~ +85℃ (Refer to "Derating Curve")
CASE TEMPERATURE: +100℃ max.
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +105℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: 0.03% / ℃ (0 ~ 80℃)
SOLDERING TEMPERATURE: 1.5mm from case of 3 ~ 5sec./265℃ max.
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: EAC TP TC 020/2011 (EAC TP TC 004 for 48Vin type only) approved
WITHSTAND VOLTAGE: I/P-O/P:1.5KVDC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE (Typ.): 80pF
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032(CISPR32) N/A
Radiated BS EN/EN55032(CISPR32) Class B
EMC IMMUNITY: Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 3, ±8KV air
Radiated Susceptibility BS EN/EN61000-4-3 Level 2, 3V/m
EFT/Bursts BS EN/EN61000-4-4 Level 1, 0.5KV
Surge BS EN/EN61000-4-5 Level 2, 0.5KV Line-Line
Conducted BS EN/EN61000-4-6 Level 2, 3V
Magnetic Field BS EN/EN61000-4-8 Level 1, 1A/m

Parameter	Standard	Test Level
Conducted	BS EN/EN55032(CISPR32)	N/A
Radiated	BS EN/EN55032(CISPR32)	Class B

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 3, ±8KV air
Radiated Susceptibility	BS EN/EN61000-4-3	Level 2, 3V/m
EFT/Bursts	BS EN/EN61000-4-4	Level 1, 0.5KV
Surge	BS EN/EN61000-4-5	Level 2, 0.5KV Line-Line
Conducted	BS EN/EN61000-4-6	Level 2, 3V
Magnetic Field	BS EN/EN61000-4-8	Level 1, 1A/m

OTHERS

MTBF: 300Khrs min. MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 22.1*13.8*8.55mm (0.87*0.54*0.34 inch)
CASE MATERIAL: Non-Conductive black plastic (UL 94V-0 rated)
PACKING: 4.5g ; 36pcs/per tube, 1800pcs/50 tube/per 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 10% to 100% rated load.
5.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)
6.An external input filter capacitor is required if the module has to meet BS EN/EN61000-4-4, BS EN/EN61000-4-5. The filter capacitor Power Mate suggest: 220uF/100V.

Technical drawings

DLC03A-12 Plug Assignment — Plug Assignment

Typical applications

Downloads

Certificates3

Certificate (SLC-DLC03-EMC)(EN) PDF Download

Certificate (SLC-DLC03-UK-dec)(EN) PDF Download

Certificate (SLC-DLC03-CE-dec)(EN) PDF Download

Test reports1

Test Report (DLC03A-12)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the DLC03A-12 for industrial sensors or controllers that require a 12V rail from a 9-18VAC source?

This converter is built for a 9-18VAC input range and provides constant 12V output. With a 3W rating, it is better aligned with low-power control, sensing, or embedded electronics that need a 12V rail.

Is the DLC03A-12 a fit for compact embedded or instrumentation circuits that run on 12V?

It has a small 21.1 × 13.8 × 8.55 mm package and weighs 0.0045 kg, which helps in space-constrained electronics. The constant 12V output and 3W power rating suit small embedded or instrumentation subsystems rather than higher-load 12V devices.

Can the DLC03A-12 be used in automation equipment that needs low-power 12V auxiliary power?

Yes, it is intended for constant-voltage 12V output in applications within the 9-18VAC input range. Its 3W limit makes it appropriate for auxiliary electronics, interface boards, and low-power automation functions.

Will the DLC03A-12 handle cold or hot enclosure conditions?

The specified operating temperature range is -40°C to +85°C, which covers a wide span for enclosed equipment. Because no IP rating is provided, the specs do not confirm outdoor exposure or water-ingress resistance.

How does the DLC03A-12 compare with the other DLC03A models?

The DLC03A-05, DLC03A-12, and DLC03A-15 are all 3W models with a 9-18VAC input range. Their outputs differ: 5V at 300A, 12V at 125A, and 15V at 100A respectively.

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Model	Power	Voltage	Current	IP Rating
Mean Well DLC03C-15 DC-DC Converter - 3W - 36~75V in ±15V out 100mA	3W	15V	100 Milliampere	IP20	View
Mean Well DLC03C-12 DC-DC Converter - 3W - 36~75V in ±12V out 125mA	3W	12V	125 Milliampere	IP20	View
Mean Well DLC03C-05 DC-DC Converter - 3W - 36~75V in ±5V out 300mA	3W	5V	300 Milliampere	IP20	View
Mean Well DLC03B-15 DC-DC Converter - 3W - 18~36V in ±15V out 100mA	3W	15V	100 Milliampere	IP20	View
Mean Well DLC03B-12 DC-DC Converter - 3W - 18~36V in ±12V out 125mA	3W	12V	125 Milliampere	IP20	View
Mean Well DLC03B-05 DC-DC Converter - 3W - 18~36V in ±5V out 300mA	3W	5V	300 Milliampere	IP20	View
Mean Well DLC03A-15 DC-DC Converter - 3W - 9~18V in ±15V out 100mA	3W	15V	100 Milliampere	IP20	View
Mean Well DLC03A-05 DC-DC Converter - 3W - 9~18V in ±5V out 300mA	3W	5V	300 Milliampere	IP20	View

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