This document provides specifications for 50W dual output switching power supplies models D-50A and D-50B. The power supplies provide 5V and 12V outputs for model A, and 5V and 24V outputs for model B. Key features include overload and overvoltage protections, adjustable output voltages, and 100% full load burn-in testing. The power supplies have efficiencies of around 73% and dimensions of 159mm x 97mm x 38mm.

1. 50W Dual Output Switching Power Supply D-50 series
Features :
AC input selectable by switch
Protections:Short circuit/Over load
Cooling by free air convection
100% full load burn-in test
Fixed switching frequency at 24KHz I/P-O/P:Rated
1 year warranty
SPECIFICATION
MODEL D-50A D-50B
DC VOLTAGE 5V 12V 5V 24V
RATED CURRENT 6A 2A 6A 1A
CURRENT RANGE 1 ~ 6A 0.3 ~ 2A 1 ~ 6A 0.2 ~ 1A
RATED POWER 54W 54W
RIPPLE & NOISE (max.) Note.2 50mVp-p 100mVp-p 50mVp-p 100mVp-p
OUTPUT
VOLTAGE ADJ. RANGE CH1 : 4.75 ~ 5.5V CH1 : 4.75 ~ 5.5V
VOLTAGE TOLERANCE Note.3 2.0% +5,-8% 2.0% 8.0%
LINE REGULATION 0.5% 1.0% 0.5% 1.0%
LOAD REGULATION 0.5% 5.0% 0.5% 8.0%
SETUP, RISE, HOLD TIME 200ms, 100ms, 20ms at full load
VOLTAGE RANGE 85 ~ 132VAC/170 ~ 264VAC selected by switch 240 ~ 370VDC
FREQUENCY RANGE 47 ~ 63Hz
EFFICIENCY(Typ.) 73% 73%
INPUT
AC CURRENT 1.3A/115VAC 0.65A/230VAC
INRUSH CURRENT(max.) COLD START 18A/115VAC 36A/230VAC
LEAKAGE CURRENT <0.5mA / 240VAC
105 ~ 150% rated output power
PROTECTION OVER LOAD
Protection type : Fold back current limiting, recovers automatically after fault condition is removed
WORKING TEMP. -10 ~ +60 (Refer to output load derating curve)
WORKING HUMIDITY 20 ~ 90% RH non-condensing
ENVIRONMENT STORAGE TEMP., HUMIDITY -20 ~ +85 , 10 ~ 95% RH
TEMP. COEFFICIENT 0.03%/ (0 ~ 50 ) on +5V output
VIBRATION 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY STANDARDS Design refer to UL1012
SAFETY & WITHSTAND VOLTAGE I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
EMC ISOLATION RESISTANCE I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC
EMI CONDUCTION & RADIATION Design refer to FCC Part15 J Conduction
MTBF 408.9K hrs min. MIL-HDBK-217F (25 )
OTHERS DIMENSION 159*97*38mm (L*W*H)
PACKING 0.53Kg; 24pcs/13.6Kg/0.75CUFT
1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25 of ambient temperature.
NOTE
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
File Name:D-50-SPEC 2004-06-30

2. 50W Dual Output Switching Power Supply D-50 series
Mechanical Specification Case No. 901 Unit:mm
152.5
7
3.5
1
2
9.5
65
3
4
84.5
97
5
3
2 -M
8.2
6
7
3 .5
4.5
24 78
159
6.5 150
9
9
18.5
3.5
3-
3 .5
38
M3
18
28.5
22 117
Terminal Pin. No Assignment
Pin No. Assignment Pin No. Assignment
1 AC/L 4 DC OUTPUT +V2
2 AC/N 5,6 DC OUTPUT COM
3 FG 7 DC OUTPUT +V1
Output Derating Static Characteristics (B)
Ta=25
25 5.2 300
100 D-50B +5V
OUTPUT RIPPLE (mVp-p)
24 5.0 250
OUTPUT VOLTAGE (V)
80 +24V
23 4.8 200
60 D-50A 22 4.6 150
LOAD (%)
21 4.4 100
40
20 4.2 50
+24V
20
19 4.0 25
+5V
-10 0 10 20 30 40 50 60 (VERTICAL) 60 85 90 95 100 105 110 115 120 125 130
-10 0 (HORIZONTAL) 120 170 180 190 200 210 220 230 240 250 260
AMBIENT TEMPERATURE ( ) INPUT VOLTAGE (V) 60Hz
File Name:D-50-SPEC 2004-06-30