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Mean Well SKM10A-03 DC-DC Converter - 10W - 9~18V in 3.3V out 2.5A

Name: Mean Well SKM10A-03 DC-DC Converter - 10W - 9~18V in 3.3V out 2.5A
Brand: Mean Well
SKU: SKM10A-03
Price: 20.92 USD
Availability: InStock

SKU SKM10A-03

$20.92 USD

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Overview

SKM10A-03 is the 3.3V output model of this series: rated power 10W, typical efficiency 81%.

SKM10 and DKM10 series are 10W isolated and regulated module type DC-DC converter with DIP 1"x1" package. It features international standard pins, a high efficiency up to 90%, wide working temperature range -40~+85℃, 1.5KVDC I/P-O/P isolation voltage, Compliance to BS EN/EN55032 radiated Class A without additional components , continuous-mode short circuit protection, etc. The models account for different input voltage 4.7~9V, 9~18V, 18~36V and 36~75V 2:1 wide input range, and various output voltage, 3.3V/5V/12V/15V for single output and ±5V/±12V/±15V for dual outputs, which are suitable for all kinds of systems, such as industrial control, telecommunication field, distributed power architecture, and so on.

Features

DIP 1"x1" 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 A without additional components
High efficiency up to 90%
Protections: Short circuit (Continuous) / Overload / Over voltage / Input under voltage
1.5KVDC I/O isolation
Remote ON/OFF control and Triming output (±10%)
3 years warranty

Specifications

SKM10A-03Specifications from the official datasheet (2024-04-30 edition)

MODEL SELECTION TABLE

INPUT VOLTAGE (RANGE): 12V (9 ~ 18V)
INPUT CURRENT NO LOAD: 30mA
INPUT CURRENT FULL LOAD: 855mA
OUTPUT VOLTAGE: 3.3V
OUTPUT CURRENT: 2500mA
EFFICIENCY (Typ.): 81%
CAPACITOR LOAD (MAX.)^{* For each output}: 2470μF

INPUT

VOLTAGE RANGE: 9~18Vdc ,
SURGE VOLTAGE (100ms max.): 5Vin models : 12Vdc, 12Vin models : 25Vdc, 24Vin models : 50Vdc, 48Vin models : 100Vdc
FILTER: Pi type
PROTECTION: Fuse recommended. 5Vin models: 5A delay time Type, 12Vin models: 4A delay time Type, 24Vin models: 2A delay time Type, 48Vin models: 1A delay time Type
INTERNAL POWER DISSIPATION: 500mW

OUTPUT

VOLTAGE ACCURACY: ±1.5%
RATED POWER: 10W
RIPPLE & NOISE^Note.2: 50mVp-p
LINE REGULATION^Note.3: ±0.2%
LOAD REGULATION^Note.4: Single output models: ±0.2%, Dual output models:±1%
SWITCHING FREQUENCY (Typ.): 350KHz
EXTERNAL TRIM ADJ. RANGE (Typ.): ±10% (Single output model only)

PROTECTION

SHORT CIRCUIT: Protection type : Continuous, automatic recovery
OVERLOAD: 110 ~ 140% rated output power Protection type : Recovers automatically after fault condition is removed
OVER VOLTAGE: Protection type : Clamp by diode
UNDER VOLTAGE LOCKOUT Start-up voltage: 5Vin: 4.4Vdc, 12Vin: 8.8Vdc, 24Vin: 17Vdc, 48Vin: 34Vdc
UNDER VOLTAGE LOCKOUT Shutdown voltage: 5Vin: 4.2Vdc, 12Vin: 8Vdc, 24Vin: 16Vdc, 48Vin: 32Vdc

FUNCTION

REMOTE CONTROL: Power ON: R.C. ~ -Vin >5.5~75Vdc or open circuit ; Power OFF: R.C. ~ -Vin <1.2Vdc or short

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: -40 ~ +85℃ (Refer to "Derating Curve")
CASE TEMPERATURE: +105℃ max.
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -55 ~ +125℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: 0.03% / ℃ (0 ~ 71℃)
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.5)

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.): 1000pF
EMC EMISSION: Parameter Standard Test Level

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

ESD BS EN/EN61000-4-2 Level 2, ±8KV air, ±4KV contact
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 1, 0.5KV Line-Line
Conducted BS EN/EN61000-4-6 Level 2, 3V(e.m.f.)
Magnetic Field BS EN/EN61000-4-8 Level 2, 3A/m

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

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 2, ±8KV air, ±4KV contact
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 1, 0.5KV Line-Line
Conducted	BS EN/EN61000-4-6	Level 2, 3V(e.m.f.)
Magnetic Field	BS EN/EN61000-4-8	Level 2, 3A/m

OTHERS

MTBF: 1200Khrs MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 25.4*25.4*10.2mm (1*1*0.4 inch)
CASE MATERIAL: Black coated copper with Non-Conductive Base
PACKING: 18.3g ; 12pcs/per tube, 600pcs/50 tube/per carton

Test conditions and notes5

1.All parameters are specified at normal input(E:5Vdc, 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)

Technical drawings

SKM10A-03 SKM10 & DKM10 series — SKM10 & DKM10 series

SKM10A-03 SKM10 & DKM10 series (2) — SKM10 & DKM10 series (2)

SKM10A-03 Plug Assignment — Plug Assignment

Typical applications

Downloads

Certificates2

Mean Well SKM10-DKM10-CE-dec Certificate PDF Download

Mean Well SKM-DKM10-UK-dec Certificate PDF Download

Test reports1

Mean Well SKM10A-03 Test Report PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the SKM10A-03 to power 3.3V embedded controllers from a higher-voltage input source?

Yes, this constant-voltage model provides 3.3V output up to 2.5A with a total power rating of 10W. It is intended for equipment that operates from the listed 9-18VDC input range and needs a regulated 3.3V rail.

Is the SKM10A-03 suitable for industrial logic boards or communication modules that run on 3.3V?

It can be a fit for 3.3V logic or communication hardware as long as the load stays within 2.5A and 10W. The small 25.4 × 25.4 × 10.2 mm size is useful where board space is tight.

Can this model support 3.3V sensors or low-voltage embedded electronics in automation equipment?

It is appropriate for 3.3V electronics that need constant voltage and remain within the rated 2.5A output current. With a 10W limit, it is aimed at lower-power embedded and control tasks rather than larger loads.

Does the SKM10A-03 handle wide temperature conditions, and is it okay outdoors?

The listed operating range is -40°C to +85°C, which is wider than many standard indoor-only electronics. No IP rating is provided in the supplied specs, so the data does not confirm exposed outdoor use.

What is the difference between the SKM10A-03 and the other SKM10A versions?

The listed SKM10A models share 10W power, 9-18VDC input, constant-voltage operation, 25.4 × 25.4 × 10.2 mm dimensions, 18.3g weight, and -40°C to +85°C operating temperature. The outputs are 3.3V at 2.5A for SKM10A-03, 5V at 2A for SKM10A-05, 12V at 833mA for SKM10A-12, and 15V at 666mA for SKM10A-15.

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