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Mean Well

Mean Well SPU03M-12 DC-DC Converter - 3W - 10.8~13.2V in 12V out

SKU SPU03M-12
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Overview

SPU03M-12 is the model of this series: rated power 3W, typical efficiency 86%.

Features

  • 3000VDC I/O isolation
  • Internal SMD technology
  • Built-in EMI filter
  • Protection: Short circuit
  • Cooling by free air convection
  • Non-conductive plastic case
  • Single in line package
  • 100% full load burn-in test
  • Low cost / High reliability
  • 2 years warranty

Specifications

SPU03M-12Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC OUTPUT VOLTAGE
12V
CURRENT RANGE
25 ~ 250mA
EFFICIENCY (Typ.)
86%
RATED POWER
3W
RIPPLE & NOISE (max.)Note.2
50mVp-p
LINE REGULATIONNote.3
±1.2% for 1% input variation
LOAD REGULATIONNote.4
±8.0%
VOLTAGE ACCURACY
±2.0%
SWITCHING FREQUENCY
60KHz min.

INPUT

VOLTAGE RANGE
10.8 ~ 13.2V
NORMAL VOLTAGE
12V
INPUT CURRENT Full load
300mA
INPUT CURRENT No load
25mA
FILTER
Capacitor type
PROTECTION
Fuse recommended

PROTECTION

OVERLOAD
Momentary Protection type : Broken
SHORT CIRCUIT
Momentary Protection type : Broken

ENVIRONMENT

WORKING TEMP.
-40 ~ +90℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +105℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03% / ℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
EAC TP TC 020/2011 approved
WITHSTAND VOLTAGE
I/P-O/P:3KVDC
ISOLATION RESISTANCE
I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE
80pF max.
EMC EMISSION
Compliance to BS EN/EN55032 Class B, FCC part 15 Class B , EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8, light industry level, criteria A , EAC TP TC 020

OTHERS

MTBF
700khrs min. MIL-HDBK-217F(25℃)
DIMENSION
19.6*7.5*10.2mm or 0.77"*0.30"*0.40" inch (L*W*H)
PACKING
2.9g ; 25 pcs/per tube, 4000 pcs/ 160 tube/per carton
Test conditions and notes4
  1. 1.All parameters are specified at normal input, rated load, 25℃ 70% RH ambient.
  2. 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf & 47uf capacitor.
  3. 3.Line regulation is measured from low line to high line at rated load.
  4. 4.Load regulation is measured from 20% to 100% rated load.

Technical drawings

SPU03M-12 Mechanical Specification
Mechanical Specification
SPU03M-12 Packing
Packing

Downloads

FAQ

Can I use the SPU03M-12 for a 12V control or relay rail in industrial electronics?

Yes, this model provides constant-voltage 12V output and is rated at 3W. It is suited to low-power 12V control, interface, or auxiliary electronics when the available input is 10.8~13.2V.

Is the SPU03M-12 suitable for 12V embedded or automation subsystems with modest power demand?

The converter is designed for a 12V constant-voltage output at 3W, which aligns with low-power embedded and automation circuitry. It should be matched to systems operating within the 10.8~13.2V input range.

Can this model be used in compact control boards that need a regulated 12V section?

Its package measures 19.6 × 10.2 × 7.5 mm and weighs 0.0029 kg, so it fits compact board-level layouts. That makes it practical for dense control, instrumentation, and embedded electronics.

Would the SPU03M-12 work for low-power 12V support electronics in industrial or IT hardware?

For low-power 12V auxiliary electronics, the 3W output rating is the right scale for housekeeping or support rails. The constant-voltage output is intended for circuits that require a regulated 12V supply from a 10.8~13.2V input source.

Is the SPU03M-12 appropriate for outdoor or washdown environments?

The published operating temperature range is -40°C to +90°C, so thermal operating limits are provided. No IP rating is listed in the provided specs, so enclosure protection against water or dust is not specified.

What are the differences between the SPU03M-12 and its SPU03M siblings?

The SPU03M-12 is rated 3W with 12V output and listed 250mA output current. The SPU03M-05 is 3W with 5V output and listed 600mA output current, while the SPU03M-15 is 3W with 15V output and listed 200mA output current.

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Mean Well SPU03M-12 DC-DC Converter - 3W - 10.8~13.2V in 12V out
Mean Well

Mean Well SPU03M-12 DC-DC Converter - 3W - 10.8~13.2V in 12V out

Log in to see price

SPU03M-12 is the model of this series: rated power 3W, typical efficiency 86%.

Features

  • 3000VDC I/O isolation
  • Internal SMD technology
  • Built-in EMI filter
  • Protection: Short circuit
  • Cooling by free air convection
  • Non-conductive plastic case
  • Single in line package
  • 100% full load burn-in test
  • Low cost / High reliability
  • 2 years warranty
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