VER :
A_2
update :
98.04.27
Encapsulated DC-DC Converter
SW20 SERIES
KEY FEATURES
The Smallest Dimension in the Market
Smaller Dimension with High Efficiency
2:1 Input Range
Regulated Output
Low Ripple and Noise
Screw Terminal For Optional
Remote ON/OFF Control (Optional)
Operating Temperature: -40°C…+85°C (with derating)
Small Size :1.0 x 1.0 x 0.433 Inches
2 Years Product Warranty
20 Watts
ELECTRICAL SPECIFICATIONS
Model No.
Input Voltage (V.DC.)
Output Voltage (V.DC.)
Efficiency
Capacitor Load (max)
Model No.
Input Voltage (V.DC.)
Output Voltage (V.DC.)
Efficiency
Capacitor Load (max)
Model No.
Input Voltage (V.DC.)
Output Voltage (V.DC.)
Efficiency
Capacitor Load (max)
SW20-12-3.3S
12V (9-18V)
3.3V / 4500mA
85%
2000
μF
SW20-24-3.3S
24V (18-36V)
3.3V / 4500mA
86%
2000
μF
SW20-48-3.3S
48V (36-75V)
3.3V / 4500mA
84%
2000
μF
SW20-12-5S
12V (9-18V)
5V / 4000mA
89%
2000
μF
SW20-24-5S
24V (18-36V)
5V / 4000mA
89%
2000
μF
SW20-48-5S
48V (36-75V)
5V / 4000mA
88%
2000
μF
SW20-12-3.3S
Model No.
( Single Output )
SW20-24-3.3S
SW20-48-3.3S
Max Output Wattage (W)
Input
Input Filter
Voltage (V.DC.)
Voltage Accuracy
Current (mA) max
Line Regulation (LL-HL) (typ.)
Output
Load Regulation (10-100%) (typ.)
Ripple
Noise
Switching Frequency
Over Power Protection
Protection
Over Voltage Protection
Short Circuit Protection
Voltage
Isolation
Resistance
Capacitance
Operating Temperature
Storage Temperature
Case Temperature
Environment
Temperature Coefficient
Humidity
MTBF
Dimension (L x W x H)
Case Material
Physical
Weight
Cooling Method
14.85W
SW20-12-5S
SW20-24-5S
SW20-48-5S
20W
SW20-12-12S
12V (9-18V)
12V / 1660mA
88%
470
μF
SW20-24-12S
24V (18-36V)
12V / 1660mA
89%
470
μF
SW20-48-12S
48V (36-75V)
12V / 1660mA
89%
470
μF
SW20-12-12S
SW20-24-12S
SW20-48-12S
20W
SW20-12-15S
12V (9-18V)
15V / 1330mA
88%
330
μF
SW20-24-15S
24V (18-36V)
15V / 1330mA
89%
330
μF
SW20-48-15S
48V (36-75V)
15V / 1330mA
89%
330
μF
SW20-12-15S
SW20-24-15S
SW20-48-15S
20W
15
1330
L-C type
3.3
5
12
±2%
4500
4000
1660
±0.5%
±1%
75 mV max.
100mV max.
100 mV max.
125mV max.
450KHz
300KHz
Works over 120% of rating and recovers automatically.
Zener diode clamp
Current limit, auto-recovery
1600 VDC.
10
8
ohms
1000 pF
-40°C…+85C (with derating)
-55°C…+105°C
+105°C max.
±0.02%
Per°C
95% RH
>800,000 h @ 25°C (MIL-HDBK-217F)
1.0 x 1.0 x 0.433 Inches ( 25.4 x 25.4 x 11.0 mm ) Tolerance
±0.5
mm
six-side shielded Aluminum with Non-Conductive base, Black Anodize
15g
Free-air convection
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
http://www.archcorp.com.tw
TEL: +886-2-26989508 FAX: +886-2-26981319
-1-
VER :
A_2
update :
98.04.27
Encapsulated DC-DC Converter
SW20 SERIES
SW15-12-3.3S
Model No.
( Single Output )
DC-DC ON
DC-DC OFF
Input Current of Remote Control Pin
Remote off State Input Current
SW15-24-3.3S
SW15-12-5S
SW15-24-5S
SW15-12-12S
SW15-24-12S
20 Watts
SW15-12-15S
SW15-24-15S
SW15-48-15S
Remote ON/OFF
SW15-48-3.3S
SW15-48-5S
SW15-48-12S
Open or +5 VDC ~ +15 VDC
When -DC IN and ON/OFF CTL is Short (or 0 VDC ~ +0.5VDC)
1mA
4mA
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
MECHANICAL DIMENSION
( Top View )
PIN#
1
2
3
4
5
6
Single
ON / OFF CTL (Optional)
-DC IN
+DC IN
-DC OUT
NO PIN
+DC OUT
DERATING
OUTPUT NOISE
The output noise is measured with 0.1μF tantalum capacitor.
SW20-24-5S Efficiency
Load=100%(4A)
95.00%
90.00%
85.00%
EFF%
EFF%
VIN=24 VDC
95.00%
92.50%
90.00%
87.50%
85.00%
82.50%
80.00%
77.50%
80.00%
75.00%
70.00%
65.00%
10
0%
40
%
50
%
60
%
70
%
10
%
20
%
30
%
80
%
90
%
75.00%
18V
24V
VIN
36V
LOAD
http://www.archcorp.com.tw
TEL: +886-2-26989508 FAX: +886-2-26981319
-2-
VER :
A_2
update :
98.04.27
Encapsulated DC-DC Converter
SW20 SERIES
SCREW TERMINAL
SW20-A2
20 Watts
PIN#
1
2
3
4.
5
6
7
8
Single
CTRL
-DC IN
+DC IN
-DC OUT
NO CONNECT
NO CONNECT
NO CONNECT
+DC OUT
SW20-A5
PIN#
1
2
3
4.
5
6
7
8
Single
CTRL
-DC IN
+DC IN
-DC OUT
NO CONNECT
NO CONNECT
NO CONNECT
+DC OUT
http://www.archcorp.com.tw
TEL: +886-2-26989508 FAX: +886-2-26981319
-3-
