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Mean Well SPUN02N-12 DC-DC Converter - 2W - 21.6~26.4V in 12V out

Name: Mean Well SPUN02N-12 DC-DC Converter - 2W - 21.6~26.4V in 12V out
Brand: Mean Well
SKU: SPUN02N-12
Price: 5.19 USD
Availability: InStock

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Overview

SPUN02N-12 is the 12V output model of this series: rated power 2W, typical efficiency 85%.

SPUN02 and DPUN02 series are 2W isolated and unregulated module type DC-DC converter with SIP7 package. It features international standard pins, a high efficiency up to 87%, wide working temperature range -40~+105℃, 3KVDC I/P-O/P isolation voltage, compliance to BS EN/EN55032 radiated Class A without additional components, short circuit protection, etc. The models account for different input voltage 5V/12V/ 24V±10%, 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, such as industrial control, telecommunication field, distributed power architecture, and so on.

Features

SIP7 package with industry standard pinout
Operating temperature range -40 ~ +105℃
Comply to BS EN/EN55032 radiated Class A without additional components
High efficiency up to 87%
Protection: Short circuit(continuous)/Over load
3KVDC I/O isolation
Low cost
3 years warranty

Specifications

SPUN02N-12Specifications from the official datasheet (2024-03-11 edition)

INPUT

INPUT VOLTAGE (RANGE): 24V (21.6 ~ 26.4V)
INPUT CURRENT NO LOAD: 10mA
INPUT CURRENT FULL LOAD: 96mA
VOLTAGE RANGE: 21.6 ~ 26.4Vdc
SURGE VOLTAGE (100ms max.): 5Vin models : 9Vdc ; 12Vin models : 18Vdc ; 24Vin models : 30Vdc
FILTER: Internal capacitor
PROTECTION: Fuse recommended. 5Vin models: 1A Slow-Blow Type, 12Vin models: 500mA Slow-Blow Type, 24Vin models: 250mA Slow-Blow Type
INTERNAL POWER DISSIPATION: 500mW

OUTPUT

OUTPUT VOLTAGE: 12V
OUTPUT CURRENT: 0 ~ 167mA
EFFICIENCY (TYP.): 85%
CAPACITOR LOAD (MAX.)^{* For each output}: 220μF
VOLTAGE ACCURACY: ±3.0% max.
RATED POWER: 2W
RIPPLE & NOISE^Note.2: 100mVp-p(150mV for SPUN02L-05/12)
LINE REGULATION^Note.3: 1.2% for 1% input variation
LOAD REGULATION^Note.4: 10%
SWITCHING FREQUENCY (Typ.): 60KHz

PROTECTION

SHORT CIRCUIT: Protection type: Continuous, automatic recovery
OVERLOAD: Protection type : Recovers automatically after fault condition is removed

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: -40 ~ +105℃ (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: ±0.05% / ℃ (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 approved
WITHSTAND VOLTAGE: I/P-O/P:3KVDC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE (Typ.): 18pF
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/Burest 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/Burest	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: 3.3Mhrs MIL-HDBK-217F(25℃)
DIMENSION (L*W*H): 19.6*7.2*10.2mm (0.77*0.28*0.40 inch)
CASE MATERIAL: Non-Conductive black plastic (UL 94V-0 rated)
PACKING: 2.7g ; 15pcs/per tube, 2205pcs/147 tube/per carton

Test conditions and notes5

1.All parameters are specified at normal input(L:5Vdc, M:12Vdc, N:24Vdc), 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 20% 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

SPUN02N-12 Pin Configuration — Pin Configuration

Typical applications

Downloads

Certificates3

Certificate (SPUN02-DPUN02-EMC)(EN) PDF Download

Certificate (SPUN02-DPUN02-CE-dec)(EN) PDF Download

Certificate (SPUN-DPUN02-UK-dec)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the SPUN02N-12 to power a 12V sensor or interface board in industrial equipment?

Yes, this converter is suited to low-power 12V loads such as sensors, interface boards, and embedded control circuits that need a fixed 12V output. It provides 12V output at 2W and accepts a 21.6~26.4VDC input range.

Is the SPUN02N-12 appropriate for embedded or automation electronics with very limited board space?

It is designed for compact electronics where space and weight matter. The module measures 19.6 × 7.2 × 10.2 mm (L × W × H) and weighs 0.0027 kg, which fits small embedded and automation assemblies better than larger chassis supplies.

Can this 12V DC-DC converter be used for low-power monitoring or control circuits in a 24V-class system?

It can be used where the source falls within the 21.6~26.4VDC input range and the downstream device needs a fixed 12V output; note it is unregulated, with 10% load regulation. With a 2W rating, it is intended for low-power control, monitoring, and signal electronics rather than larger loads.

Would the SPUN02N-12 fit instrumentation or communications subcircuits that need stable 12V output?

It can suit small instrumentation or communications subcircuits that need 12V from a 21.6~26.4VDC source, but it is an unregulated converter: output accuracy is ±3.0% and load regulation is 10%. Its 2W capacity makes it appropriate for light auxiliary electronics, not high-power equipment.

Is the SPUN02N-12 suitable for outdoor or harsh-temperature environments?

The operating temperature range is -40°C to +105°C, with load derating at high ambient per the derating curve, so it is specified for wide temperature conditions. However, no IP rating is listed, so the specs do not indicate protection for direct outdoor exposure, water, or dust without an enclosure.

How does the SPUN02N-12 compare with the other SPUN02N models?

Within the sibling group, all listed models are 2W converters. The SPUN02N-05 is 5V and 0~400mA, the SPUN02N-12 is 12V and 0~167mA, and the SPUN02N-15 is 15V and 0~134mA.

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