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Mean Well DKMW30G-12 DC-DC Converter - 30W - 18~75V in ±12V out 1.25A

Name: Mean Well DKMW30G-12 DC-DC Converter - 30W - 18~75V in ±12V out 1.25A
Brand: Mean Well
SKU: DKMW30G-12
Price: 41.32 USD
Availability: InStock

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Overview

DKMW30G-12 is the ±12V output model of this series: rated power 30W, typical efficiency 88%.

SKMW30 and DKMW30 series are 30W 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, overload, over temperature, input under voltage protection, remote ON/OFF and trimmable output voltage etc. The models account for different input voltage 9~36V and 18~75V 4:1 ultrawide input range, and various output voltage, 3.3V/5V/12V/15V for single output and ±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

DIP 1"x1" package with industry standard pinout
4:1 ultrawide 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 / Over temperature / Input under voltage
1.5KVDC I/O isolation
Remote ON/OFF control and Triming output (±10%)
3 years warranty

Specifications

DKMW30G-12Specifications from the official datasheet (2024-04-30 edition)

MODEL SELECTION TABLE

INPUT VOLTAGE (RANGE): 48V (18 ~ 75V)
INPUT CURRENT NO LOAD: 8mA
INPUT CURRENT FULL LOAD: 710mA
OUTPUT VOLTAGE: ±12V
OUTPUT CURRENT: ±0 ~ 1250mA
EFFICIENCY (TYP.): 88%
CAPACITOR LOAD (MAX.)^{* For each output}: *1250μF

INPUT

VOLTAGE RANGE: 18~75Vdc
SURGE VOLTAGE (100ms max.): 24Vin models : 50Vdc, 48Vin models : 100Vdc
FILTER: Pi type
PROTECTION: Fuse recommended. 24Vin models: 6A delay time Type, 48Vin models: 3A delay time Type
INTERNAL POWER DISSIPATION: 500mW

OUTPUT

VOLTAGE ACCURACY: ±1.5%
RATED POWER: 30W
RIPPLE & NOISE^Note.2: 3.3/5Vout models: 75mVp-p, other models:100mVp-p
LINE REGULATION^Note.3: ±0.2%
LOAD REGULATION^Note.4: Single output models: ±0.2%, Dual output models:±1%
SWITCHING FREQUENCY (Typ.): 3.3/5Vout models: 270KHz, other models: 330KHz
EXTERNAL TRIM ADJ. RANGE (Typ.): ±10% (Single output model only)

PROTECTION

SHORT CIRCUIT: Protection type : Continuous, automatic recovery
OVERLOAD: 110 ~ 170% rated output power Protection type : Recovers automatically after fault condition is removed
OVER VOLTAGE: Protection type : Clamp by diode
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

UNDER VOLTAGE LOCKOUT Start-up voltage: 24Vin (F-type): 8.8Vdc, 48Vin (G-type): 17Vdc
UNDER VOLTAGE LOCKOUT Shutdown voltage: 24Vin (F-type): 8Vdc, 48Vin (G-type): 16Vdc
REMOTE CONTROL: Power ON: R.C. ~ -Vin >3.5~75Vdc 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 ~ 60℃)
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.): 1500pF
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: 3.3/5Vout models: 860Khrs, Other models: 1170Khrs 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: 19.2g ; 12pcs/per tube, 600pcs/50 tube/per carton

Test conditions and notes5

1.All parameters are specified at normal input(F:24Vdc, G: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.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

DKMW30G-12 SKMW30 & DKMW30 series — SKMW30 & DKMW30 series

DKMW30G-12 SKMW30 & DKMW30 series (2) — SKMW30 & DKMW30 series (2)

DKMW30G-12 Plug Assignment — Plug Assignment

Typical applications

Downloads

Certificates2

Certificate (SKMW30-DKMW30-CE-dec)(EN) PDF Download

Certificate (SKMW-DKMW30-UK-dec)(EN) PDF Download

Test reports1

Test Report (DKMW30G-12)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the DKMW30G-12 on a 24V or 48V industrial DC bus?

Yes. Its 18-75V input range covers both 24V and 48V based systems. The converter delivers a ±12V dual output rated for 30W and ±1.25A per rail.

Is this converter suitable for telecom or industrial electronics that need 12V power?

It can be used where the available source is within 18-75V and the load requires a regulated ±12V output. The 30W power rating and ±1.25A output current place it in the range of lower-power electronics and control modules. Its compact 25.4 × 25.4 × 10.2 mm body also helps where board area is limited.

Can the DKMW30G-12 be used in embedded or automation systems with a wide input range?

Yes, that is a typical fit for this spec profile. The unit combines an 18-75V input range with a ±12V dual output, which is useful when the source bus is not fixed at one level. The -40°C to +85°C operating range also supports use inside demanding equipment environments.

Can I mount this converter in an outdoor enclosure or wet location?

No IP rating is listed for this model, so it should not be assumed suitable for direct exposure to rain, washdown, or airborne contaminants. The converter is specified for -40°C to +85°C operation, but temperature range alone does not indicate environmental sealing. It is better matched to protected indoor or enclosed equipment use.

What is the difference between the DKMW30G-12 and DKMW30G-15?

Both models are 30W dual-output converters with an 18-75V input range, 25.4 × 25.4 × 10.2 mm dimensions, 19.2g weight, -40°C to +85°C operating temperature, and a 3-year warranty. The DKMW30G-12 provides ±12V output at ±1.25A, while the DKMW30G-15 provides ±15V output at ±1A. The main difference is the output voltage and current rating.

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