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Mean Well DKA30A-12 DC-DC Converter - 30W - 9~18V in ±12V out 1.25A
Overview
DKA30A-12 is the ±12V output model of this series: rated power 30W, typical efficiency 80%.
Features
- 2:1 wide input range
- 4:1 wide input range(option)
- 1500VDC I/O isolation
- Built-in EMI filter
- Trimming output(±10%)
- Remote ON-OFF control
- Protections: Short circuit / Overload
- Cooling by free air convection
- Six-sided shield metal case
- Epoxy encapsulated
- 100% burn-in test
- Approvals: FCC / EAC / CE / UKCA
- 2 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- ±12V
- CURRENT RANGE
- ±125 ~ ±1250mA
- RATED POWER
- 30W
- RIPPLE & NOISE (max.)Note.2
- 100mVp-p
- LINE REGULATIONNote.3
- ±0.5%
- LOAD REGULATIONNote.4
- ±0.5%
- VOLTAGE ACCURACY
- ±2.0%
- SWITCHING FREQUENCY
- 100KHz min.
- EXTERNAL TRIM Adj. RANGE
- ±10%
INPUT
- VOLTAGE RANGE
- 9 ~ 18VDC
- EFFICIENCY (Typ.)
- 80%
- DC CURRENT
- Full load A: 3.2A B: 1.5A C: 0.77A No load A: 40mA B: 20mA C: 10mA
- FILTER
- Pi network
- PROTECTION
- Fuse recommended
PROTECTION (Note. 5)
- OVERLOAD
- 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 ~ +85℃ (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./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
- 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
- REMOTE CONTROL
- Power on: R.C ~-Vin > 4.5~5.5VDC or open, Power off : R.C~ -Vin <0.8VDC or short
- MTBF
- 100Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 50.8*50.8*21.0mm or 2"*2"*0.82" inch (L*W*H)
- PACKING
- 110g ; 5pcs/per tube, 140pcs/28 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 DKA30A-12 for 12V automation or control equipment from a 9-18VDC source?
Yes. This model provides a regulated dual ±12V output from a 9-18VDC input and is rated at 30W with up to 1.25A per rail. It fits lower-power 12V automation or control loads that stay within that power range.
Is the DKA30A-12 a good fit for embedded 12V electronics in compact industrial devices?
It can be, especially where space and temperature range matter. The package is 50.8 × 50.8 × 21.0 mm, and the converter operates from -40°C to +85°C (with output derating at high temperatures, see the derating curve) while delivering regulated ±12V output at up to 30W.
Can this converter be used as a 12V auxiliary rail in low-voltage systems?
Yes, when the source is within 9-18VDC and the auxiliary rail requires regulated ±12V output. Its 30W rating and up to 1.25A per rail make it appropriate for smaller 12V auxiliary loads.
How does the DKA30A-12 compare with the other DKA30A models?
The DKA30A family shares 9-18VDC input, 50.8 × 50.8 × 21.0 mm dimensions, -40°C to +85°C operating temperature, and a 2-year warranty. The differences are output and power: DKA30A-05 is 25W, ±5V, up to 2.5A per rail; DKA30A-12 is 30W, ±12V, up to 1.25A per rail; and DKA30A-15 is 30W, ±15V, up to 1A per rail.
Is the DKA30A-12 suitable for outdoor use?
The temperature specification is broad at -40°C to +85°C (with output derating at high temperatures), which supports use across demanding ambient conditions. However, no IP rating is provided, so the available specs do not classify it as an outdoor-rated product.
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