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Mean Well

Mean Well SRS-0509 DC-DC Converter - 0.5W - 4.5~5.5V in 9V out

SKU SRS-0509
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Overview

SRS-0509 is the 9V output model of this series: rated power 0.5W, typical efficiency 60%.

Features

  • 1500VDC I/O isolation
  • Internal SMD technology
  • Built-in EMI filter
  • Cooling by free air convection
  • Non-conductive plastic case
  • Dual in line package
  • 100% burn-in test
  • Low cost / High reliability
  • Approvals: FCC / EAC / CE / UKCA
  • 2 years warranty

Specifications

SRS-0509Specifications from the official datasheet (2024-08-02 edition)

OUTPUT

DC VOLTAGE
9V
CURRENT RANGE
0 ~ 56mA
EFFICIENCY (TYP.)
60%
RATED POWER
0.5W
RIPPLE & NOISE (max.)Note.2
100mVp-p
LINE REGULATION
±1.0%
LOAD REGULATIONNote.3
±1.0%
VOLTAGE ACCURACY
±2.0%(Typ.) ±3.0%(max.)
SWITCHING FREQUENCY
50KHz min.

INPUT

VOLTAGE RANGE
4.5 ~ 5.5V
NORMAL VOLTAGE
5V
INPUT CURRENT Full load
175mA
INPUT CURRENT No load
37mA
FILTER
Capacitor type
PROTECTION
Fuse recommended

PROTECTION (Note. 4)

OVERLOAD
150 ~ 350% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
SHORT CIRCUIT
All output equipped with short circuit Protection type : Hiccup mode, recovers automatically after fault condition is removed

ENVIRONMENT

WORKING TEMP.
-25 ~ +71℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20% ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-25 ~ +105℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03% / ℃(0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
EAC TP TC 020/2011 approved
WITHSTAND VOLTAGE
I/P-O/P:1.5KVDC
ISOLATION RESISTANCE
I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
ISOLATION CAPACITANCE
80pF max.
EMC EMISSION
Compliance to BS EN/EN55032 Class B, FCC part 15 Class B, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8, light industry level, criteria A, EAC TP TC 020

OTHERS

MTBF
600khrs min. MIL-HDBK-217F(25℃)
DIMENSION
22.6*9.9*8.9mm or 0.89"*0.39"*0.35" inch (L*W*H)
PACKING
3.1g ; 22pcs/per tube, 3080pcs/140 tube/per carton
Test conditions and notes4
  1. 1.All parameters are specified at normal input, rated load, 25℃ 70% RH ambient.
  2. 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf & 47uf capacitor.
  3. 3.Load regulation is measured from 10% to 100% rated load.
  4. 4.Please prevent the converter from operating in overload or short circuit condition for more than 30 seconds.

Technical drawings

SRS-0509 Mechanical Specification
Mechanical Specification
SRS-0509 Packing
Packing

Downloads

FAQ

Can I use the SRS-0509 for a small 9V embedded circuit?

Yes, this model provides constant-voltage 9V output, but it is limited to 0.5W and 0.06A. That makes it appropriate for very small embedded or control-side loads rather than higher-draw 9V equipment.

Is the SRS-0509 suitable for a 9V sensor interface or analog stage?

It can be a fit for low-power 9V interface circuitry when the load stays within 0.5W and 0.06A. The constant-voltage output is useful for circuits that need a fixed 9V rail.

Can this converter power a compact 9V monitoring module in industrial electronics?

Yes, if the monitoring module is a very light load that fits within the 0.5W rating. Its 22.6 × 9.9 × 8.9 mm size also makes it practical in dense embedded or industrial assemblies.

Is the SRS-0509 a good choice for low-power automation subcircuits?

It can be used for small 9V auxiliary subcircuits in automation or embedded designs when the current requirement does not exceed 0.06A. It is not aimed at larger 9V loads because the total output power is only 0.5W.

Can the SRS-0509 be used indoors or outdoors?

The listed operating temperature range is -25°C to +71°C, but the provided specs do not include an IP rating. Based on that, environmental protection would need to come from the final product enclosure rather than from the converter itself.

Payment & Security

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Mean Well SRS-0509 DC-DC Converter - 0.5W - 4.5~5.5V in 9V out
Mean Well

Mean Well SRS-0509 DC-DC Converter - 0.5W - 4.5~5.5V in 9V out

Log in to see price

SRS-0509 is the 9V output model of this series: rated power 0.5W, typical efficiency 60%.

Features

  • 1500VDC I/O isolation
  • Internal SMD technology
  • Built-in EMI filter
  • Cooling by free air convection
  • Non-conductive plastic case
  • Dual in line package
  • 100% burn-in test
  • Low cost / High reliability
  • Approvals: FCC / EAC / CE / UKCA
  • 2 years warranty
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