SKA20 20W DC-DC Regulated Single Output Converter series Features : 2" 1" compact size 2:1 wide input range High efficiency up to 89.5% 1500VDC I/O isolation Built-in remote ON/OFF control Built-in trimming output Built-in EMI filter Protections: Short circuit / Overload / Input and Output Over voltage Cooling by free air convection Six-sided shield metal case 100% burn-in test Low cost / High reliability Approvals: FCC / CE 2 years warranty SPECIFICATION ORDER NO. SKA20A-05 SKA20B-05 SKA20C-05 SKA20A-12 SKA20B-12 SKA20C-12 SKA20A-15 SKA20B-15 SKA20C-15 DC VOLTAGE 5V 12V 15V CURRENT RANGE 400 ~ 4000mA 166 ~ 1666mA 133 ~ 1333mA RATED POWER 20W 60mVp-p 60mVp-p 220uF -20 ~ +10% 100uF -20 ~ +10% RIPPLE & NOISE (max.) Note.2 50mVp-p OUTPUT LINE REGULATION Note.3 0.2% LOAD REGULATION Note.4 0.5% 2.0% VOLTAGE ACCURACY 300KHz typ. SWITCHING FREQUENCY EXTERNAL CAPACITANCE LOAD (max.) 1000uF EXTERNAL TRIM Adj. RANGE(Typ.) 10% VOLTAGE RANGE A: 9 ~ 18VDC B: 18 ~ 36VDC C: 36 ~ 75VDC 88% 88.5% 87.5% 88% 88.5% 87.5% 89% 89.5% 88% Full load 1910mA 970mA 490mA 1910mA 970mA 500mA 1870mA 950mA 490mA No load 55mA 40mA 35mA 25mA 15mA 35mA 25mA 15mA EFFICIENCY (Typ.) DC CURRENT INPUT 80mA Pi network Power ON : R.C ~ -Vin > 2.5VDC or open circuit ; Power OFF : R.C ~ -Vin < 0.5VDC or short FILTER REMOTE CONTROL Fuse recommended PROTECTION 110% ~ 180% rated output power OVER CURRENT PROTECTION (Note. 5) SHORT CIRCUIT OVER VOLTAGE Protection type : Hiccup mode, recovers automatically after fault condition is removed All output equipped with short circuit Protection type : Hiccup mode, recovers automatically after fault condition is removed Input(Typ.) A: >20 ~ 23VDC B: >40 ~ 43VDC C: >80 ~ 82VDC input voltage Output Protection type : Shut down o/p voltage, recovers automatically after fault condition is removed -40 ~ +85 WORKING TEMP. WORKING HUMIDITY (Refer to "Derating Curve") 20% ~ 90% RH non-condensing ENVIRONMENT STORAGE TEMP., HUMIDITY -55 ~ +125 , 10 ~ 95% RH 0.03% / (0 ~ 50 ) TEMP. COEFFICIENT 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes VIBRATION I/P-O/P:1.5KVDC WITHSTAND VOLTAGE I/P-O/P: 100M Ohms / 500VDC / 25 / 70% RH SAFETY & ISOLATION RESISTANCE EMC EMISSION EMC Compliance to EN55022 Class A, FCC part 15 Class A EMC IMMUNITY Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A 700Khrs min. MIL-HDBK-217F(25 50.8*25.4*11.2 mm or 2"*1"*0.44" inch (L*W*H) WEIGHT 31.2g 20.4[0.80] 5.8 [0.23] Unit:mm(inch) 1 20.32[0.80] 2 BOTTOM VIEW 5 4 SIDE VIEW Pin No. Output +Vin 4 Trim 2 -Vin 5 -Vout 3 +Vout 6 R.C 25.4[1.00] 100 External Output Trimming 3 10.2 [0.40] Pin No. Output 1 2 15.24[0.60] 50.8[2.00] 7.62 5.08 [0.30] [0.20] 6 Derating Curve Pin Configuration Mechanical Specification NOTE ) MTBF DIMENSION -Vin +Vout -Vout LOAD (%) OTHERS 50 3 5 20K LOAD VR -40 0 25 50 75 85 100 VR 1 11.2[0.44] +Vin Trim 4 Ta ( UP DOWN ) TRIMPOT 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. File Name:SKA20-SPEC 2011-09-13