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Mean Well DKA15A-12 DC-DC Converter - 15W - 9~18V in ±12V out 625mA
Overview
DKA15A-12 is the ±12V output model of this series: rated power 15W, typical efficiency 83%.
Features
- 2:1 wide input range
- 4:1 wide input range(option)
- 1000VDC I/O isolation
- 3000VDC I/O isolation(option)
- Built-in EMI filter
- Protections: Short circuit / Overload
- Cooling by free air convection
- Six-sided shield metal case
- 100% burn-in test
- Low cost / High reliability
- Approvals: FCC / CE
- 2 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- ±12V
- CURRENT RANGE
- ±62.5 ~ ±625mA
- RATED POWER
- 15W
- RIPPLE & NOISE (max.)Note.2
- 60mVp-p
- LINE REGULATIONNote.3
- ±0.2%
- LOAD REGULATIONNote.4
- ±0.5%
- VOLTAGE ACCURACY
- ±2.0%
- SWITCHING FREQUENCY
- 150KHz min.
- EXTERNAL CAPACITANCE LOAD (max.)
- 820uF
INPUT
- VOLTAGE RANGE
- 9 ~ 18VDC
- EFFICIENCY (Typ.)
- 83%
- DC CURRENT Full load
- 1600mA
- DC CURRENT No load
- 30mA
- FILTER
- Pi network
- PROTECTION
- Fuse recommended
PROTECTION (Note. 5)
- OVER CURRENT
- 110% ~ 250% 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.
- -40 ~ +71℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20% ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +105℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03% / ℃ ( 0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- EAC TP TC 004 approved
- WITHSTAND VOLTAGE
- I/P-O/P:1KVDC
- ISOLATION RESISTANCE
- I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to EN55032 Class A, FCC part 15 Class A , EAC TP TC 020
- EMC IMMUNITY
- Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A , EAC TP TC 020
OTHERS
- MTBF
- 300Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 50.8*25.4*11.27mm or 2"*1"*0.44" inch (L*W*H)
- WEIGHT
- 32g
Test conditions and notes5
- 1.All parameters are specified at normal input, rated load, 25℃ 70% RH ambient.
- 2.Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1uf & 47uf capacitor.
- 3.Line regulation is measured from low line to high line at rated load.
- 4.Load regulation is measured from 10% to 100% rated load.
- 5.Please prevent the converter from operating in overload or short circuit condition for more than 30 seconds.
Technical drawings
Downloads
Datasheet1
Test reports1
FAQ
Can I use the DKA15A-12 for a 12V industrial control circuit powered from a 9-18VAC source?
Yes. This converter is rated for 15W constant-voltage output and accepts 9-18VAC input, so it fits control or interface circuits that need a regulated 12V rail within that input range. The compact 50.8 × 25.4 × 11.27 mm body also suits space-limited industrial assemblies.
Is the DKA15A-12 suitable for embedded or instrumentation boards that need dual ±12V rails?
Yes, if the application requires ±12V output and stays within the unit's 15W rating. The product name specifies ±12V out, which makes it relevant for analog, instrumentation, or signal-conditioning designs that use positive and negative supply rails. Its constant-voltage operation is appropriate where stable rail voltage matters.
Can this converter be used in automation equipment with limited internal space?
It is a practical option for compact automation assemblies because the housing is only 50.8 × 25.4 × 11.27 mm and weighs 0.032 kg. Those dimensions help when the power section has to fit on dense boards or inside smaller control enclosures. The 15W output rating keeps it in the low-power auxiliary supply class.
Is the DKA15A-12 a fit for telecom or IT subsystems that run from a low-voltage AC source and need 12V output?
It can fit low-power IT or communications subassemblies when the available source is 9-18VAC and the required output is 12V at up to the listed 15W. CE and FCC certifications are also listed, which can be relevant in regulated electronic equipment. Buyers should still match the subsystem load to the converter's published power limit.
How does the DKA15A-12 compare with the other DKA15A models?
The DKA15A-05, DKA15A-12, and DKA15A-15 are all 15W models in the same series. The differences are their outputs: 5V at 1.5A for DKA15A-05, 12V for DKA15A-12, and 15V at 500A for DKA15A-15. The DKA15A-12 shares the same 9-18VAC input family and compact form factor shown for this series entry.
Can the DKA15A-12 be used outdoors or in harsh temperature conditions?
The listed operating temperature is -40°C to +71°C, so the temperature range is broad for industrial environments. However, no IP rating is provided in the specs, so the product page does not confirm outdoor or washdown suitability on its own. In practice, outdoor use would require environmental protection beyond what is stated here.
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