Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well SPB09A-03 DC-DC Converter - 9W - 9~18V in 3.3V out
Remote ON/OFF control
9V model available(optional)
3 years warranty
Key Features
- ✓SIP8 package with industry-standard pinout
- ✓2:1 wide input range
- ✓Wide operating temperature range -40~+90°C
- ✓No minimum load required
- ✓High efficiency up to 89%
- ✓Protection: Short circuit(continuous)/Overload/Input under voltage
- ✓1.5KVDC I/O isolation
- ✓Remote ON/OFF control
- ✓9V model available(optional)
- ✓3 years warranty
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BrandMean Well
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SeriesSPB Series
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Power Rating9 Watt
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Output Voltage3.3 Volt
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Rated Current2 Ampere
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Input Voltage9V~18V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EAC
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Operation ModeConstant Voltage
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Operating Temperature-40°C~90°C
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Warranty3 Year
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Length0.98 in
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Width0.44 in
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Height0.38 in
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Weight0.01 lb
::specification::
Frequently Asked Questions
Can I use the SPB09A-03 for a 3.3V industrial controller or embedded processor board?
It can fit higher-power 3.3V control electronics because it provides constant 3.3V output with a 9W rating and 2A output current. That gives it more headroom for embedded processing and control loads than a 2W converter.
Is the SPB09A-03 suitable for 3.3V sensor hubs or communications modules in automation systems?
Yes, it is better aligned with 3.3V electronics that need more available power, since it delivers 9W and 2A. That makes it more practical for grouped control, sensing, and communications circuitry than lower-power alternatives.
Can this converter support 3.3V embedded computing or edge-control hardware?
It can be a fit for compact 3.3V embedded hardware where the load needs more than a minimal control rail. The 9W output and 2A current rating position it for more capable 3.3V electronics than very small support circuits.
Is the SPB09A-03 a better match for denser low-voltage electronics than smaller DC-DC modules?
For 3.3V loads, the 9W power rating and 2A output make it suitable when the electronics need more available current than a very low-power module can provide. Its 24.9 × 11.2 × 9.6 mm dimensions still keep it compact for embedded designs.
Can the SPB09A-03 be used in wide-temperature or outdoor environments?
The listed operating range is -40°C to +90°C, so it supports wide-temperature operation. No IP rating is provided in the listed specs, so the product data does not present it as an exposed outdoor-rated converter.
How does the SPB09A-03 compare with the other SPB09A models?
All listed SPB09A versions are 9W constant-voltage converters with the same 24.9 × 11.2 × 9.6 mm dimensions, 0.005 kg weight, and -40°C to +90°C operating range. The outputs are 3.3V at 2A for SPB09A-03, 5V at 1.6A for SPB09A-05, 12V at 750A for SPB09A-12, 15V at 600A for SPB09A-15, and 24V at 375A for SPB09A-24.
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