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Mean Well SPUN02N-05 DC-DC Converter - 2W - 21.6~26.4V in 5V out

SKU SPUN02N-05

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Overview

SPUN02N-05 is the 5V output model of this series: rated power 2W, typical efficiency 81%.

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-05Specifications 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: 102mA
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: 5V
OUTPUT CURRENT: 0 ~ 400mA
EFFICIENCY (TYP.): 81%
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-05 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-05 to step down a 21.6~26.4V source to 5V for industrial electronics?

Yes, this converter is specified for 21.6~26.4V input and delivers a fixed 5V output at 2W. That makes it suitable for low-power industrial electronics, control interfaces, and embedded boards that need 5V from a higher-voltage source.

Is the SPUN02N-05 appropriate for 24V-style automation systems that need a low-power 5V rail?

It is aligned with that use case because the input range is 21.6~26.4V and the output is a fixed 5V. The 2W rating means it fits low-power logic, monitoring, and interface functions rather than larger 5V loads.

Can this converter be used on compact monitoring or embedded control boards?

Yes, the module is small at 19.6 × 7.2 × 10.2 mm (L × W × H) and weighs 2.7g, which helps in compact board-level designs. Its fixed, unregulated 5V output (10% load regulation) is appropriate for low-power embedded and monitoring electronics within the 2W limit.

Is the SPUN02N-05 suitable for outdoor cabinets or only protected enclosures?

The operating temperature range is -40°C to +105°C, with load derating at high ambient per the derating curve, so the temperature spec supports demanding conditions in protected equipment. No IP rating is listed, so these specs do not indicate suitability for exposed outdoor use.

How does the SPUN02N-05 compare with the other SPUN02N models?

The SPUN02N series entries listed here are all 2W models with different outputs. SPUN02N-05 is 5V with 0~400mA output current, SPUN02N-12 is 12V with 0~167mA, and SPUN02N-15 is 15V with 0~134mA.

Payment & Security

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Model	Power	Voltage	Current	IP Rating
Mean Well SPUN02N-15 DC-DC Converter - 2W - 21.6~26.4V in 15V out	2W	15V	134 Milliampere	IP20	View
Mean Well SPUN02N-12 DC-DC Converter - 2W - 21.6~26.4V in 12V out	2W	12V	167 Milliampere	IP20	View
Mean Well SPUN02M-15 DC-DC Converter - 2W - 10.8~13.2V in 15V out	2W	15V	134 Milliampere	IP20	View
Mean Well SPUN02M-12 DC-DC Converter - 2W - 10.8~13.2V in 12V out	2W	12V	167 Milliampere	IP20	View
Mean Well SPUN02M-05 DC-DC Converter - 2W - 10.8~13.2V in 5V out	2W	5V	400 Milliampere	IP20	View
Mean Well SPUN02L-15 DC-DC Converter - 2W - 4.5~5.5V in 15V out	2W	15V	134 Milliampere	IP20	View
Mean Well SPUN02L-12 DC-DC Converter - 2W - 4.5~5.5V in 12V out	2W	12V	167 Milliampere	IP20	View
Mean Well SPUN02L-05 DC-DC Converter - 2W - 4.5~5.5V in 5V out	2W	5V	400 Milliampere	IP20	View

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