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Mean Well SPAN02C-03 DC-DC Converter - 2W - 36~75V in 3.3V out 500mA

SKU SPAN02C-03

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Overview

SPAN02C-03 is the 3.3V output model of this series: rated power 2W, typical efficiency 75%.

SPAN02 and DPAN02 series are 2W 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~+90℃, 1.5KVDC I/P-O/P isolation voltage, compliance to BS EN/EN55032 radiated class A without additional components, overload and continuous-mode short circuit protection, etc. The models account for different input voltage 4.5~9V, 9~18V, 18~36V and 36~75V 2:1 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
2:1 wide input range
Operating temperature range -40 ~ +90℃
No minimum load required
Comply to BS EN/EN55032 radiated Class A without additional components
High efficiency up to 85%
Protections: Short circuit (Continuous) / Overload
1.5KVDC I/O isolation
Remote ON/OFF control
3 years warranty

Specifications

SPAN02C-03Specifications from the official datasheet (2024-04-30 edition)

INPUT

INPUT VOLTAGE (RANGE): 48V (36 ~ 75V)
INPUT CURRENT NO LOAD: 9mA
INPUT CURRENT FULL LOAD: 46mA
VOLTAGE RANGE: 36~75Vdc
SURGE VOLTAGE (100ms max.): 5Vin models : 15Vdc ; 12Vin models : 25Vdc ; 24Vin models : 50Vdc ; 48Vin models : 100Vdc
FILTER: Internal capacitor
PROTECTION: Fuse recommended. 5Vin models: 1000mA Slow-Blow Type, 12Vin models: 500mA Slow-Blow Type, 24V and 48Vin models: 250mA Slow-Blow Type
INTERNAL POWER DISSIPATION: 500mW

OUTPUT

OUTPUT VOLTAGE: 3.3V
OUTPUT CURRENT: 0 ~ 500mA
EFFICIENCY (TYP.): 75%
CAPACITOR LOAD (MAX.)^{* For each output}: 500μF
VOLTAGE ACCURACY: ±1.5%
RATED POWER: 2W
RIPPLE & NOISE^Note.2: 75mVp-p
LINE REGULATION^Note.3: ±0.5%
LOAD REGULATION^Note.4: Single output models:±0.5%, Dual output models:±1%
SWITCHING FREQUENCY (Typ.): 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: 5Vin : 4.2Vdc ; 12Vin : 7.3Vdc ; 24Vin : 15.5Vdc ; 48Vin : 31Vdc
UNDER VOLTAGE LOCKOUT Shutdown voltage: 5Vin : 3Vdc ; 12Vin : 5.8Vdc ; 24Vin : 12Vdc ; 48Vin : 24Vdc

FUNCTION

REMOTE CONTROL: Power ON: R.C. ~ -Vin <0.8Vdc or open circuit; Power OFF: R.C. ~ -Vin >4 ~ 15Vdc

ENVIRONMENT

COOLING: Free-air convection
WORKING TEMP.: -40 ~ +90℃ (Refer to "Derating Curve")
CASE TEMPERATURE: +100℃ max.
WORKING HUMIDITY: 20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -55 ~ +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.): 10pF
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: 2500Khrs 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: 2.7g ; 14pcs/per tube, 2058pcs/147 tube/per carton

Test conditions and notes5

1.All parameters are specified at normal input(E:5Vdc, A:12Vdc, B:24Vdc, C: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

SPAN02C-03 Plug Assignment — Plug Assignment

Typical applications

Downloads

Certificates2

Certificate (SPAN02-DPAN02-CE-sec)(EN) PDF Download

Certificate (SPAN-DPAN02-UK-dec)(EN) PDF Download

Test reports1

Test Report (SPAN02C-03)(EN) PDF Download

Catalogues2

Mean Well DC-DC Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the SPAN02C-03 for a 3.3V logic rail in a higher-voltage control system?

Yes, it is designed for a 36-75VDC input range and provides a constant 3.3V output. With a 2W rating, it is aligned with low-power logic or control circuitry rather than larger power loads.

Is the SPAN02C-03 a fit for embedded processors or sensor electronics that run on 3.3V?

It is suited to embedded or automation designs that need a constant 3.3V rail from a 36-75VDC source. The compact 21.8 × 9.2 × 11.1 mm size also supports dense board layouts.

Can the SPAN02C-03 be used in compact telecom or industrial electronics with limited space?

Its 21.8 × 9.2 × 11.1 mm dimensions and 2.7g weight make it practical for compact electronics where board area is tight. The application should still remain within its 2W output class and 3.3V constant-voltage output.

What is the difference between the SPAN02C-03 and the other SPAN02C versions?

The listed SPAN02C models all have a 36-75VDC input range and 2W power rating. The SPAN02C-03 outputs 3.3V at 500mA, the SPAN02C-05 outputs 5V at 400mA, the SPAN02C-12 outputs 12V at 167mA, and the SPAN02C-15 outputs 15V at 134mA.

Can the SPAN02C-03 be used in outdoor equipment or wide-temperature enclosures?

The specified operating range is -40°C to +90°C, which supports use in equipment exposed to broad temperature swings. The provided specs do not list an IP rating, so outdoor enclosure suitability is not confirmed by this product data alone.

Payment & Security

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Model	Power	Voltage	Current	IP Rating
Mean Well SPAN02E-15 DC-DC Converter - 2W - 4.5~9V in 15V out 134mA	2W	15V	134 Milliampere	IP20	View
Mean Well SPAN02E-12 DC-DC Converter - 2W - 4.5~9V in 12V out 167mA	2W	12V	167 Milliampere	IP20	View
Mean Well SPAN02E-05 DC-DC Converter - 2W - 4.5~9V in 5V out 400mA	2W	5V	400 Milliampere	IP20	View
Mean Well SPAN02E-03 DC-DC Converter - 2W - 4.5~9V in 3.3V out 500mA	2W	3.3V	500 Milliampere	IP20	View
Mean Well SPAN02C-15 DC-DC Converter - 2W - 36~75V in 15V out 134mA	2W	15V	134 Milliampere	IP20	View
Mean Well SPAN02C-12 DC-DC Converter - 2W - 36~75V in 12V out 167mA	2W	12V	167 Milliampere	IP20	View
Mean Well SPAN02C-05 DC-DC Converter - 2W - 36~75V in 5V out 400mA	2W	5V	400 Milliampere	IP20	View
Mean Well SPAN02B-15 DC-DC Converter - 2W - 18~36V in 15V out 134mA	2W	15V	134 Milliampere	IP20	View
Mean Well SPAN02B-12 DC-DC Converter - 2W - 18~36V in 12V out 167mA	2W	12V	167 Milliampere	IP20	View
Mean Well SPAN02B-05 DC-DC Converter - 2W - 18~36V in 5V out 400mA	2W	5V	400 Milliampere	IP20	View
Mean Well SPAN02B-03 DC-DC Converter - 2W - 18~36V in 3.3V out 500mA	2W	3.3V	500 Milliampere	IP20	View
Mean Well SPAN02A-15 DC-DC Converter - 2W - 9~18V in 15V out 134mA	2W	15V	134 Milliampere	IP20	View
Mean Well SPAN02A-12 DC-DC Converter - 2W - 9~18V in 12V out 167mA	2W	12V	167 Milliampere	IP20	View
Mean Well SPAN02A-05 DC-DC Converter - 2W - 9~18V in 5V out 400mA	2W	5V	400 Milliampere	IP20	View
Mean Well SPAN02A-03 DC-DC Converter - 2W - 9~18V in 3.3V out 500mA	2W	3.3V	500 Milliampere	IP20	View

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