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Mean Well SCWN06B-03 DC-DC Converter - 6W 18~36V DC in 3.3V out 1.2A
Overview
SCWN06B-03 is the 3.3V output model of this series: rated power 6W, typical efficiency 79%.
SCWN06 and DCWN06 series are 6W isolated and regulated module type DC-DC converter with DIP24 package. It features international standard pins, a high efficiency up to 87%, wide working temperature range -40~+ 90℃, 3 KVDC I/P-O/P isolation voltage, Compliance to BS EN/EN55032 radiated Class A without additional components, continuous-mode short circuit protection, etc. The additional components, models account for different input voltage 9~18V, 18~36V and 36~72V 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, s uch as industrial control, telecommunication field, distributed power architecture, and so on.
Features
- DIP24 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 87%
- Protections: Short circuit (Continuous) / Overload / Input under voltage
- 3KVDC I/O isolation
- 3 years warranty
Specifications
INPUT
- INPUT VOLTAGE (RANGE)
- Normal 24V (18 ~ 36V)
- INPUT CURRENT NO LOAD
- 4mA
- INPUT CURRENT FULL LOAD
- 209mA
- VOLTAGE RANGE
- 18~36Vdc ,
- SURGE VOLTAGE (100ms max.)
- 12Vin models : 25Vdc ; 24Vin models : 50Vdc ; 48Vin models : 100Vdc
- FILTER
- Pi type
- PROTECTION (Typ.)
- Fuse recommended. 12Vin models: 1.6A Fast-Acting Type, 24Vin models: 1A Fast-Acting Type, 48Vin models: 0.5A Fast-Acting Type
- INTERNAL POWER DISSIPATION
- 500mW
OUTPUT
- OUTPUT VOLTAGE
- 3.3V
- OUTPUT CURRENT
- 1200mA
- EFFICIENCY (TYP.)
- 79%
- CAPACITOR LOAD (MAX.)* For each output
- 4700μF
- VOLTAGE ACCURACY
- ±1.5%
- RATED POWER
- 6W
- RIPPLE & NOISENote.2
- 50mVp-p
- LINE REGULATIONNote.3
- ±0.5%
- LOAD REGULATIONNote.4
- Single output models:±0.5%, Dual output models:±1%
- SWITCHING FREQUENCY (Min.)
- 100KHz
PROTECTION
- SHORT CIRCUIT
- Protection type : Continuous, automatic recovery
- OVERLOAD
- 120 ~ 250% rated output power Protection type : Recovers automatically after fault condition is removed
- UNDER VOLTAGE LOCKOUT Start-up voltage
- 12Vin: 8.8Vdc, 24Vin: 17Vdc, 48Vin: 34Vdc
- UNDER VOLTAGE LOCKOUT Shutdown voltage
- 12Vin: 8Vdc, 24Vin: 16Vdc, 48Vin: 31Vdc
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
- -40 ~ +100℃, 10 ~ 95% RH non-condensing
- TEMP. COEFFICIENT
- 0.03% / ℃ (0 ~ 90℃)
- 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.)
- 250pF
- 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
OTHERS
- MTBF (Typ.)
- 1800Khrs MIL-HDBK-217F(25℃)
- DIMENSION (L*W*H)
- 31.8*20.3*10.2mm (1.25*0.8*0.4 inch)
- CASE MATERIAL
- Non-Conductive black plastic (UL 94V-0 rated)
- PACKING
- 12.4g ; 10pcs/per tube, 600pcs/60 tube/per carton
Test conditions and notes5
- 1.All parameters are specified at normal input(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 for SCWN06, 25% to 100% rated load for DCWN06.
- 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
Typical applications
- Telecom/ datacom system
- Wireless network
- Industrial control facility
- Instrument
- Analyzer
- Detector
- Data switch
Downloads
Datasheet1
Certificates3
FAQ
Can I use the SCWN06B-03 to derive 3.3V logic power from a 24V or 36V control system?
Yes, this model accepts 18-36VDC input and provides a constant-voltage 3.3V output, which aligns with many 24V and 36V control environments. It can deliver up to 1.2A with a 6W maximum output.
Is the SCWN06B-03 suitable for powering embedded processors or 3.3V communication electronics in automation equipment?
It can be a fit for low-power 3.3V embedded boards, control logic, or communications modules that stay within 1.2A and 6W. The 18-36VDC input range makes it more appropriate for higher-voltage control systems than the A-series input range.
Would the SCWN06B-03 work for 3.3V PLC-adjacent electronics inside an industrial panel?
It is suitable for 3.3V support electronics when the available source falls within 18-36VDC and the load remains within the 1.2A limit. The compact 31.8 x 20.3 x 10.2 mm size also supports use in dense panel layouts.
Can this converter support a low-power 3.3V monitoring or interface board from a higher-voltage DC bus?
It is designed for that type of low-power conversion, provided the source is in the 18-36VDC range and the output demand does not exceed 6W. Since the output is fixed at 3.3V constant voltage, it fits electronics built for a regulated 3.3V rail.
How does the SCWN06B-03 compare with the other SCWN06B models?
All SCWN06B versions share a 6W rating and the same 18-36VDC input range. The outputs differ by SKU: SCWN06B-03 is 3.3V at 1.2A, SCWN06B-05 is 5V at 1A, SCWN06B-12 is 12V at 0.5A, and SCWN06B-15 is 15V at 0.4A.
Is the SCWN06B-03 suitable for outdoor cabinets or wide-temperature installations?
The operating temperature range is listed as -40°C to +90°C, which supports use across a wide temperature span. No IP rating is shown, so the specs do not establish outdoor-exposed or water-resistant use.
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