Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well SCWN03B-03 DC-DC Converter - 3W 18~36V DC in 3.3V out
Please Login for Pricing
Description
Description
Features
| DIP24 package with industry-standard pinout |
| 2:1 wide input range |
| Operating temperature range -40~+90°C |
| 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 |
General Specification
| Voltage set point accuracy | ±1.5% (max.) |
| Line regulation | ±0.5% (max.) |
| Load regulation | Single output models:±0.5%, Dual output models:±1% |
| Overload protection | 120%~250%, auto-recovery |
| Efficiency | 87% (typical) |
| Short circuit protection | Continuous, auto-recovery |
| I/O isolation voltage | I/P-O/P:3KVDC |
| I/O isolation resistance | I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH |
| Isolation capacitance | 250pF (max.) |
| Working temperature | -40~+90°C |
| Storage temperature | -40°C to +105°C |
| EMC | Compliance to EN55032 class A, EN61000-4-2,3,4,5,6,8 |
| Temp. Coefficient | 0.03% / ℃ (0 ~ 85℃) |
| Dimension (LxWxH) (mm) | 31.8*20.3*10.2mm (1.25*0.8*0.4 inch) |
| Case material | Non-conductive black plastic(UL 94V-0 rated) |
Specifications
Specifications
-
BrandMean Well
-
SeriesSCWN Series
-
Power Rating3 Watt
-
Output Voltage3.3 Volt
-
Rated Current0.6 Ampere
-
Input Voltage18V~36V
-
Standards MetCE,EAC
-
Operation ModeConstant Voltage
-
Operating Temperature-40°C~90°C
-
Warranty3 Year
-
Length3.18 cm
-
Width2.03 cm
-
Height1.02 cm
-
Weight0.01 kg
File Downloads
File Downloads
::specification::
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Frequently Asked Questions
Can I use the SCWN03B-03 for 3.3V microcontroller or logic circuits in industrial electronics?
Yes, this model provides constant 3.3V output at up to 0.6A with a total 3W rating. It is intended for applications with an 18-36VAC input where low-voltage digital electronics need regulated 3.3V power.
Is the SCWN03B-03 suitable for embedded control boards that run on 3.3V?
It is suitable when the board requires 3.3V constant voltage and the load remains within 0.6A. The converter is rated 3W and comes in a 31.8 × 20.3 × 10.2 mm package for compact equipment layouts.
Can this converter power 3.3V interface or communication modules inside automation systems?
It can support 3.3V interface electronics if the total demand does not exceed 0.6A or 3W. The specified input range is 18-36VAC, which makes it a fit for systems built around that source range.
What are the output differences across the SCWN03B series?
The SCWN03B-03 version delivers 3.3V at 0.6A and 3W. Other SCWN03B models are SCWN03B-05 at 5V and 0.6A, SCWN03B-12 at 12V and 0.25A, and SCWN03B-15 at 15V and 0.2A; all share the 3W rating.
Is the SCWN03B-03 rated for outdoor conditions or wide temperature swings?
Its operating temperature range is -40°C to +90°C, so the temperature specification is wide. The provided specs do not list an IP rating, so outdoor exposure protection is not defined here.
