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25W Single Output DC-DC Converter
Features :
2:1 wide input range
SD-25
Protections:Short circuit/Over load/Over voltage 1500VDC I/O isolation Built-in EMI filter, low ripple noise 100% full load burn-in test Fixed switching frequency at 83KHz Low cost High reliability 1 year warranty
series
SPECIFICATION
MODEL DC VOLTAGE RATED CURRENT CURRENT RANGE RATED POWER OUTPUT VOLTAGE ADJ. RANGE VOLTAGE TOLERANCE Note.3 LINE REGULATION LOAD REGULATION SETUP, RISE, HOLD TIME VOLTAGE RANGE INPUT EFFICIENCY (Typ.) DC CURRENT OVER LOAD PROTECTION OVER VOLTAGE WORKING TEMP. WORKING HUMIDITY ENVIRONMENT STORAGE TEMP., HUMIDITY TEMP. COEFFICIENT VIBRATION SAFETY STANDARDS SAFETY & WITHSTAND VOLTAGE EMC
(Note 4)
SD-25A-5 5V 5A 0 ~ 5A 25W 4.5 ~ 5.5VDC 2.0% 0.5% 0.5%
SD-25B-5
SD-25C-5
SD-25A-12 12V 2.1A 0 ~ 2.1A 25.2W 120mVp-p 11 ~ 16VDC 1.0% 0.3% 0.3%
SD-25B-12
SD-25C-12
SD-25A-24 24V 1.1A 0 ~ 1.1A 26.4W 150mVp-p 23 ~ 30VDC 1.0% 0.2% 0.2%
SD-25B-24
SD-25C-24
RIPPLE & NOISE (max.) Note.2 100mVp-p
2.5s, 50ms, ------ at full load A:9.2 ~ 18VDC 71% 3.2A/12V 72% B:19 ~ 36VDC 74% C:36 ~ 72VDC 72% 1.6A/24V 75% 78% 75% 0.8A/48V 78% 81%
105 ~ 150% rated output power Protection type : Fold back current limiting, recovers automatically after fault condition is removed 5.75 ~ 6.75V/10% load 16.8 ~ 20V/10% load 31.5 ~ 37.5V/10% load Protection type : Hiccup mode, recovers automatically after fault condition is removed -10 ~ +60 (Refer to output load derating curve) 20 ~ 90% RH non-condensing -20 ~ +85 , 10 ~ 95% RH 0.03%/ (0 ~ 50 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes Design refer to LVD I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE EMS IMMUNITY MTBF
I/P-O/P, I/P-FG, O/P-FG:100M Ohms/500VDC EMI CONDUCTION & RADIATION Compliance to EN55022 (CISPR22) Class B Compliance to EN61000-4-2,3,4,6,8; ENV50204, EN55024,heavy industry level, criteria A 374.3K hrs min.(SD-25A) 365.9K hrs min.(SD-25B) 99*97*36mm (L*W*H) 0.38Kg; 45pcs/17.8Kg/0.9CUFT 377.5K Hrs min.(SD-25C) MIL-HDBK-217F (25 )
OTHERS
DIMENSION PACKING
NOTE
1. All parameters NOT specially mentioned are measured at 12,24,48VDC input, rated load and 25 of ambient temperature. 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. 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives.
File Name:SD-25-SPEC 2004-06-30
50W Single Output DC-DC Converter
Mechanical Specification
SD-25
Case No. 905
series
Unit:mm
51.5
5
9.5
5.5
2
8.2
1
3.5
4.5 89 98.5
6.5
87
7
17.5
3.5
18
2-M
3
74
3.5
28 36
Terminal Pin. No Assignment
Pin No. 1 2 3 Assignment DC INPUT VDC INPUT V+ FG Pin No. 4 5 Assignment DC OUTPUT +V DC OUTPUT -V
Derating Curve
Static Characteristics(SD-25C-24V)
Ta=25
100
SD-25B,C/12,24
32 28
55.5
3
2-
M
3
97
4
36
20.5
55
300 250 200 150 100 50
80
24 20 16 12 8
60
LOAD (%)
SD-25A SD-25B-5 SD-25C-5
40
20
-10 -10
0 0
10
20
30
40
50 45
60 55
(VERTICAL) (HORIZONTAL)
25
30
35
40
45
50
55
60
65
70
72
AMBIENT TEMPERATURE (
)
INPUT VOLTAGE (V)
File Name:SD-25-SPEC 2004-06-30
OUTPUT RIPPLE (mVp-p)
3.5
350
OUTPUT VOLTAGE (V)

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