V27
SPECIFICATIONS
All Specifications Typical At Nominal Line, Full Load, and 25℃ Unless Otherwise Noted
INPUT SPECIFICATIONS:
Input Voltage Range ....…………..........….... 12V ................................ 9-18V
24V ............................. 18-36V
48V .............................. 36-72V
Input Surge Voltage (100ms max.) ……….… 12V …….……........ 25Vdc max.
24V ....................... 50Vdc max.
48V ..................... 100Vdc max.
Input Filter ………………………………………………….…….……..... Pi Type
GENERAL SPECIFICATIONS:
Efficiency ................................................................................. See Table
Isolation Voltage:
500 VDC min. ………….…………………………… Standard Models
3K VDC min. ... (Non-Conductive Black Plastic Only) …… Suffix “H” Models
1.5K VDC min. ………….………………………… Suffix “HM” Models
9
Isolation Resistance .....................................................…… 10 ohm min.
Switching Frequency .......................................................... 100KHz min.
Operating Ambient Temperature Range .......................... -25℃ to +71℃
Power de-rating Curve ……………………………………….. see Figure1
Case Temperature (Note 4) … Plastic/Copper case... 95℃/100℃ max.
Cooling ……………………………………………….. Natural Convection
Storage Temperature Range ………....….......……........ -40℃ to +100℃
Humidity .................................................. 95% RH max. Non condensing
MTBF ………. MIL-STD-217F ..……..……………………… 2000Khrs typ.
Dimensions …….. DIP….. 1.25×0.80x0.40 inches(31.8x20.3×10.2 mm)
SMD … 1.25×0.80x0.45 inches(31.8x20.3×11.4 mm)
Case Material:
Standard Models ………….…………… Non-Conductive Black Plastic
Suffix “M” Models ….. Black Coated Copper with Non-conductive Base
Suffix “S” Models …….……………………...…………… SMD package
Weight …………………………………………………………………... 12.5g
OUTPUT SPECIFICATIONS:
Voltage Accuracy .......................................................................... ±2.0% max.
Voltage Balance (Dual) .................................................................. ±1.0% max.
Temperature Coefficient …………………………………………… ±0.05%/℃
Ripple & Noise, 20MHz BW …………..…. 3.3V/5V ….…… 100mV pk-pk, max
12V/15V ………… 1% pk-pk max.
Short Circuit Protection ……………………………………………… Continuous
Line Regulation ……...… Single/Dual (note 1) ….……………. ±0.5% max.
Load Regulation …….… Single (note 2) ..….…......……….... ±0.5% max.
Dual (note 3) ……….………………… ±1.0% max.
NOTE:
1. Measured From High Line to Low Line.
2. Measured From Full Load to 10% Load.
3. Measured From Full Load to 1/4 Load.
4. Maximum case temperature under any operating condition should
not be exceed 95℃(Plastic Case),100℃(Copper Case).
Figure1.Typical Derating curve for Natural Convection
120%
100%
LOAD(%)
80%
60%
Plastic Case
40%
20%
Copper Case
100
95
-25
71
Case A Dimensions:
NOTE:Pin Size is 0.02 ±0.002 Inch (0.5±0.05 mm)DIA
All Dimensions In Inches (mm)
Tolerances
Inches: X.XX= ±0.02 , X.XXX= ±0.010
Millimeters: X.X= ±0.5 , X.XX=±0.25
0%
-25
0
25
50
75
o
Ambient Temperature( C)
100
CASE AS
PIN CONNECTION
SEE NOTE
500 VDC
Pin
Single Output
DIP
SMD
+V Input
NC
NC
NP
NP
NP
NC
NC
NC
Dual Output
DIP
SMD
+V Input
-V Output
Common
NP
NP
NP
NC
NC
NC
Pin
1,24
2,3
4,5
9
10,15
11
12,13
14
16
20,21
22,23
NP
1.5K & 3K VDC
Single Output
DIP
NP
SMD
NC
Dual Output
DIP
NP
SMD
NC
TOP
BOTTOM
VIEW
1,24
2,23
3,22
4
5
9
10,15
11,14
12,13
16
20,21
VIEW
-V Input
NP
NC
NC
NC
NC
NC
-V Input
NP
NC
Common
NC
-V Output
NP
NC
-V Output
+V Output
-V Input
NP
NP
NC
NC
Common
+V Output
-V Input
NP
NP
NC
NC
+V Output
-V Output
NP
NC
+V Output
Common
NP
NC
+V Input
+V Input
* NP-NO PIN
* NC-NO CONNECTION WITH PIN
2
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