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Mean Well SPBW03G-12 DC-DC Converter - 3W - 18~75V in 12V out

SKU SPBW03G-12

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Overview

SPBW03G-12 is the 12V output model of this series: rated power 3W, typical efficiency 85%.

SP BW03 and DP BW03 series are 3 W isolated and regulated module type DC-DC converter with SIP 8 package. It features international standard pins, a high efficiency up to 85%, wide working temperature range -40~+85℃, 1.5KVDC I/P-O/P isolation voltage, compliance to BS EN/EN55032 radiated Class A/B with additional components, continuous-mode short circuit protection, etc. The models account for different input voltage 9~36V and 18~75V 4:1 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

SIP8 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/B with additional components
High efficiency up to 85%
Protections: Short circuit (Continuous) / Overload / Input under voltage
1.5KVDC I/O isolation
Remote ON/OFF control
3 years warranty

Specifications

SPBW03G-12Specifications from the official datasheet (2024-04-30 edition)

INPUT

INPUT VOLTAGE (RANGE): 48V (18 ~ 75V)
INPUT CURRENT NO LOAD: 6mA
INPUT CURRENT FULL LOAD: 74mA
VOLTAGE RANGE: 18~75Vdc
SURGE VOLTAGE (100ms max.): 24Vin models : 50Vdc, 48Vin models : 100Vdc
FILTER: Internal capacitor
PROTECTION: Fuse recommended. 24Vin models: 1A Slow-Blow, 48Vin models: 500mA Slow-Blow Type
INTERNAL POWER DISSIPATION: 500mW

OUTPUT

OUTPUT VOLTAGE: 12V
OUTPUT CURRENT: 0 ~ 250mA
EFFICIENCY (TYP.): 85%
CAPACITOR LOAD (MAX.)^{* For each output}: 220μF
VOLTAGE ACCURACY: ±1.5%
RATED POWER: 3W
RIPPLE & NOISE^Note.2: 50mVp-p
LINE REGULATION^Note.3: 0.5%
LOAD REGULATION^Note.4: Single output models: ±0.5%, Dual output models:±1%
SWITCHING FREQUENCY (Min.): 100KHz

PROTECTION

SHORT CIRCUIT: Protection type : Continuous, automatic recovery
OVERLOAD: Protection type : Recovers automatically after fault condition is removed
UNDER VOLTAGE LOCKOUT Start-up voltage: 24Vin : 7.5Vdc ; 48Vin : 15.5Vdc
UNDER VOLTAGE LOCKOUT Shutdown voltage: 24Vin : 6Vdc ; 48Vin : 12Vdc

FUNCTION

REMOTE CONTROL: Power ON: R.C. ~ -Vin open circuit ; Power OFF: R.C. ~ -Vin <1.2V or short

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 ~ +125℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: 0.03% / ℃ (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.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.): 500pF
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/EN55032(CISPR32) Class A/B with external components
Radiated BS EN/EN55032(CISPR32) Class A/B with external components
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)	Class A/B with external components
Radiated	BS EN/EN55032(CISPR32)	Class A/B with external components

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: Single output models: 2800Khrs ; Dual output models: 2100Khrs MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 21.8*9.2*11.1mm (0.86*0.36*0.44 inch)
CASE MATERIAL: Non-Conductive black plastic (UL 94V-0 rated)
PACKING: 4.3g ; 14pcs/per tube, 2058pcs/147 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 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

SPBW03G-12 Plug Assignment — Plug Assignment

Typical applications

Downloads

Certificates2

Certificate (SPBW03-DPBW03-CE-dec)(EN) PDF Download

Certificate (SPBW-DPBW03-UK-dec)(EN) PDF Download

Test reports1

Test Report (SPBW03G-12)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the SPBW03G-12 to provide 12V power inside an industrial control cabinet?

It is intended for constant voltage output at 12V with 3W total power, so it fits low-power 12V circuits inside industrial or automation equipment. The 18-75VDC input range also suits systems that operate across a wide input range.

Is this DC-DC converter suitable for embedded 12V support circuits in compact equipment?

The 21.8 × 11.1 × 9.2 mm package is very small, which makes it practical where board space is limited. With 12V constant voltage output and 3W power, it is better suited to low-power embedded support functions than larger loads.

Can this model be used for 12V automation signal or interface power?

Yes, it is built as a constant voltage 12V output model for low-power use up to 3W. That makes it a fit for light auxiliary power duties in automation and control assemblies rather than higher-power 12V devices.

Is the SPBW03G-12 suitable for outdoor or harsh-temperature environments?

The listed operating temperature is -40°C to +85°C, which supports use across a wide temperature range. No IP rating is provided in the specs, so outdoor or washdown suitability is not stated and should not be assumed from this datasheet alone.

How does the SPBW03G-12 compare with other SPBW03G models?

All SPBW03G siblings listed here are 3W models. The SPBW03G-03 is 3.3V and 700mA, the SPBW03G-05 is 5V and 600mA, the SPBW03G-12 is 12V and 250mA, and the SPBW03G-15 is 15V and 200mA.

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Model	Power	Voltage	Current	IP Rating
Mean Well SPBW03G-15 DC-DC Converter - 3W - 18~75V in 15V out	3W	15V	200 Milliampere	IP20	View
Mean Well SPBW03G-05 DC-DC Converter - 3W - 18~75V in 5V out	3W	5V	600 Milliampere	IP20	View
Mean Well SPBW03G-03 DC-DC Converter - 3W - 18~75V in 3.3V out	3W	3.3V	700 Milliampere	IP20	View
Mean Well SPBW03F-15 DC-DC Converter - 3W - 9~36V in 15V out	3W	15V	200 Milliampere	IP20	View
Mean Well SPBW03F-12 DC-DC Converter - 3W - 9~36V in 12V out	3W	12V	250 Milliampere	IP20	View
Mean Well SPBW03F-05 DC-DC Converter - 3W - 9~36V in 5V out	3W	5V	600 Milliampere	IP20	View
Mean Well SPBW03F-03 DC-DC Converter - 3W - 9~36V in 3.3V out	3W	3.3V	700 Milliampere	IP20	View

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