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Mean Well DKA15B-12 DC-DC Converter - 15W - 18~36V in ±12V out 625mA
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DKA15B-12 is the ±12V output model of this series: rated power 15W, typical efficiency 80%.
Features
- 2:1 wide input range
- 4:1 wide input range(option)
- 1500VDC 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 / EAC / CE / UKCA
- 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
- 18 ~ 36VDC
- EFFICIENCY (Typ.)
- 80%
- DC CURRENT Full load
- 800mA
- 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 020/2011 approved
- WITHSTAND VOLTAGE
- I/P-O/P:1.5KVDC
- ISOLATION RESISTANCE
- I/P-O/P: 100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 Class A, FCC part 15 Class A , 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
- 300Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 50.8*25.4*11.27mm or 2"*1"*0.44" inch (L*W*H)
- PACKING
- 31.2g ; 10pcs/per tube, 400pcs/40 tube/per carton
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
FAQ
Can I use the DKA15B-12 for a 12V automation module powered from 18-36VDC?
Yes. This converter is specified for 18-36VDC input and a regulated ±12V dual output with a 15W rating. That makes it a fit for low-power automation electronics that need stable 12V rails within that input range.
Is the DKA15B-12 appropriate for embedded or industrial interface boards that need compact 12V power conversion?
It is suitable where board space is limited because the body size is 50.8 × 25.4 × 11.27 mm and the weight is 31.2 g. Those mechanical specs help in compact interface cards, monitoring devices, or other embedded industrial electronics. The converter remains in the 15W auxiliary-power class.
Can this model be used in a control cabinet that has an 18-36VDC source and needs regulated 12V output?
Yes, that is a direct match to the listed electrical range. The DKA15B-12 is built for 18-36VDC input and provides a regulated ±12V dual output, which is typical for low-power control, relay logic, and instrumentation support circuits. The key sizing limit is the stated 15W rating, up to 625mA per output.
Would DKA15B-12 fit low-power telecom or IT equipment that requires a 12V rail?
It can fit those applications when the available input is 18-36VDC and the load stays within 15W. The listed CE and FCC approvals are relevant to electronic equipment deployed in commercial or technical environments. Its compact package also supports dense internal layouts.
What are the main differences between DKA15B-12 and the other DKA15B outputs?
The DKA15B-05, DKA15B-12, and DKA15B-15 are all 15W members of the same series. Their outputs differ as follows: ±5V at up to 1500mA for DKA15B-05, ±12V at up to 625mA for DKA15B-12, and ±15V at up to 500mA for DKA15B-15. The comparison is primarily about output selection, not a change in power class.
Is the DKA15B-12 suitable for outdoor enclosures or wide-temperature industrial use?
The stated operating temperature range is -40°C to +71°C, with output derating at higher temperatures per the derating curve, so it covers a wide span for industrial equipment. But the specs do not list any IP rating, which means outdoor exposure or water ingress resistance is not established here. Use in outdoor or washdown environments should rely on a protective enclosure rather than the converter alone.
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