Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well SPB09C-03 DC-DC Converter - 9W - 36~75V 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 Voltage36V~75V
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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 SPB09C-03 to power 3.3V embedded processors or logic boards from a higher-voltage DC source?
Yes. This model provides a constant 3.3V output from a 36-75VAC input range, which suits embedded logic that needs a regulated low-voltage rail. Its 9W rating and 2A output current fit low-power processor, controller, and interface sections within those limits.
Is the SPB09C-03 suitable for industrial communication modules or low-voltage control electronics?
It can be suitable where 3.3V constant voltage is required and the source falls within 36-75VAC. With 9W power and 2A output current, it is aligned with low-power digital and communications electronics rather than larger loads. That makes it relevant for compact industrial control and embedded communication hardware.
Can this converter be used in telecom or IT equipment that runs a 3.3V logic rail from a 36-75V input range?
Yes, that is the kind of voltage conversion this model is built for. The 36-75VAC input range is broader and higher than the SPB09B family, while the output stays at regulated 3.3V. It is best matched to low-power logic and support circuitry within 9W.
Is the SPB09C-03 appropriate for outdoor enclosures or extreme temperatures?
The operating temperature range is -40°C to +90°C, so the temperature specification supports harsh thermal environments. No IP rating is listed in the provided specs, so outdoor or exposed-use suitability is not established here. The data supports temperature tolerance, but not enclosure sealing.
How does the SPB09C-03 compare with the other SPB09C versions?
All SPB09C models listed here are rated at 9W and use a 36-75VAC input range. The outputs are 3.3V at 2A for SPB09C-03, 5V at 1.6A for SPB09C-05, 12V at 750A for SPB09C-12, 15V at 600A for SPB09C-15, and 24V at 375A for SPB09C-24. The key difference is the output voltage and listed output current for each model.
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