Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well SRS-4809 DC-DC Converter - 0.5W - 43.2~52.8V in 9V out
The SRS is a 0.5W Mean Well power converter.
Key Features
- ✓ 1KVDC reinforced I/O isolation
- ✓ Protections: Short circuit / Overload
- ✓ Safety approvals: WITHSTAND VOLTAGE ISOLATION RESISTANCE ISOLATION CAPACITANCE EMC EMISSION EMC IMMUNITY MTBF DIMENSION WEIGHT -25 ~ +105 ± 0.03% / ℃ ℃ , 10 ~ 95% RH ℃ ) (0 ~ 50 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes EAC TP TC 004
- ✓ 3 years warranty
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BrandMean Well
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SeriesSRS Series
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Power Rating0.5 Watt
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Output Voltage9 Volt
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Rated Current0.05 Ampere
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Input Voltage43.2V~52.8V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EMC,FCC
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Operation ModeConstant Voltage
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Operating Temperature-25°C~71°C
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Warranty2 Year
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Length0.89 in
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Width0.39 in
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Height0.33 in
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Weight0.01 lb
::specification::
Frequently Asked Questions
Can I use the SRS-4809 for a low-power 9V circuit inside 48V telecom or automation equipment?
Yes, it is designed to provide a 9V constant-voltage output from a 43.2 to 52.8V input range. At 0.5W, it is better suited to low-power control, sensing, or interface circuits than to heavier 9V loads.
Is the SRS-4809 a fit for embedded 9V electronics on a 48V system backplane?
It is a reasonable fit when the source is within 43.2 to 52.8V and the embedded 9V section only needs up to 0.5W. Its 22.6 x 9.9 x 8.4 mm size also helps in dense board-level or module-level designs.
Can this model support a small 9V signal-conditioning or analog stage in industrial equipment?
It can be used where a regulated 9V rail is needed from a 43.2 to 52.8V input and the load stays within 0.5W. That makes it more appropriate for compact analog or signal-conditioning sections than for high-draw 9V devices.
Can the SRS-4809 be used in unheated cabinets or warm equipment compartments?
The specified operating range is -25°C to +71°C, so it is suitable for a broad range of cabinet temperatures. Since no IP rating is provided, it should be used in protected indoor enclosures rather than directly exposed outdoor environments.
What are the main differences between the 48V-input SRS-4809 and its sibling models?
All 48V-input SRS versions share the same 0.5W rating and 43.2 to 52.8V input range. The outputs differ: SRS-4805 is 5V and 100A, SRS-4809 is 9V and 0.06A, SRS-4812 is 12V and 0.04A, and SRS-4815 is 15V and 0.03A.
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