Encapsulated DC-DC Converter
SU20
Is o la t ed a nd
SERIES
Re gu lated 2 0 WATT Mod ular DC/DC Conv er ters
KEY FEATURES
Power Module for PCB Mountable
2:1 & 4:1 Wide Input Range
Regulated Output
Low Ripple and Noise
Screw Terminal For Optional
Vout Trim and ON/OFF Control Function
2-Years Product Warranty
su20
20 Watts
series
ELECTRICAL SPECIFICATIONS
Model No. ( Single Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
76%
SU20-12-3.3S
12V (9-18V)
28000
F
78%
SU20-12-5S
12V (9-18V)
10000
F
81%
SU20-12-12S
12V (9-18V)
2000
F
SU20-24-12S
24V (18-36V)
755
F
SU20-24-15S
24V (18-36V)
82 %
SU20-12-15S
12V (9-18V)
SU20-12-24S
12V (9-18V)
330
F
SU20-24-24S
24V (18-36V)
330
F
SU20-24F-24S
24V (10-40V)
160
F
SU20-48-24S
48V (36-75V)
330
F
SU20-48F-24S
48V (18-75V)
160
F
82%
87%
82%
88%
83%
Model No. ( Single Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
Model No. ( Single Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
78%
SU20-24-3.3S
24V (18-36V)
28000
F
81%
SU20-24-5S
24V (18-36V)
10000
F
86%
2000
F
SU20-24F-12S
24V (10-40V)
755
F
SU20-24F-15S
24V (10-40V)
85 %
82%
SU20-24F-3.3S
24V (10-40V)
18000
F
84%
SU20-24F-5S
24V (10-40V)
960
F
82%
750
F
SU20-48-12S
48V (36-75V)
82 %
370
F
SU20-48-15S
48V (36-75V)
Model No. ( Single Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
Model No. ( Single Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
76%
SU20-48-3.3S
48V (36-75V)
28000
F
82%
SU20-48-5S
48V (36-75V)
10000
F
84%
2000
F
SU20-48F-12S
48V (18-75V)
755
F
SU20-48F-15S
48V (18-75V)
85 %
83%
SU20-48F-3.3S
48V (18-75V)
18000
F
85%
SU20-48F-5S
48V (18-75V)
960
F
82%
750
F
82 %
370
F
Model No. ( Dual、Triple Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
77%
SU20-12-5D
12V (9-18V)
±3000
F
81%
SU20-12-12D
12V (9-18V)
±680
F
82%
SU20-12-15D
12V (9-18V)
±330
F
SU20-24-15D
24V (18-36V)
±330
F
SU20-24F-15D
24V (10-40V)
±270
F
SU20-48-15D
48V (36-75V)
±330
F
SU20-48F-15D
48V (18-75V)
±270
F
82%
82%
79 %
SU20-12-5S12D
12V (9-18V)
SU20-12-5S15D
12V (9-18V)
4000/
±150
F
SU20-24-5S15D
24V (18-36V)
4000/
±150
F
81%
77%
6000/
±150
F
SU20-24-5S12D
24V (18-36V)
Model No. ( Dual、Triple Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
Model No. ( Dual、Triple Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
82%
SU20-24-5D
24V (18-36V)
±3000
F
84%
SU20-24-12D
24V (18-36V)
±680
F
SU20-24F-12D
24V (10-40V)
±370
F
85%
83 %
6000/
±150
F
SU20-24F-5D
24V (10-40V)
8 1%
±4800
F
8 2%
Model No. ( Dual、Triple Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
Model No. ( Dual、Triple Output )
Input Voltage (V.DC.)
Efficiency
capacitor Load max
83%
SU20-48-5D
48V (36-75V)
±3000
F
85%
SU20-48-12D
48V (36-75V)
±680
F
SU20-48F-12D
48V (18-75V)
±370
F
84%
83 %
SU20-48-5S12D
48V (36-75V)
SU20-48-5S15D
48V (36-75V)
4000/
±150
F
84%
6000/
±150
F
SU20-48F-5D
48V (18-75V)
8 1%
±4800
F
8 3%
WWW.AsTRODYNE.COM
AsTRODYNE usA: 1-800-823-8082
AsTRODYNE PACIFIC: 886-2-26983458
-1-
Encapsulated DC-DC Converter
Is o la t ed
SU20 SERIES
2 0 WATT Mod ular DC/DC Conv er ters
a nd Re gu lated
SU20-12-3.3S
SU20-24-3.3S
Model No.
( Single Output )
SU20-24F-3.3S
SU20-48-3.3S
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
Trim
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
Safety
Agency Approvals
EMC
EMI (Conducted & Radiated Emission)
13.2W
SU20-48F-3.3S
SU20-12-5S
SU20-24-5S
SU20-24F-5S
SU20-48-5S
20W
SU20-48F-5S
SU20-12-12S
SU20-24-12S
SU20-24F-12S
SU20-48-12S
SU20-48F-12S
20W
SU20-12-15S
SU20-24-15S
SU20-24F-15S
SU20-48-15S
SU20-48F-15S
20W
15
1330
su20
20 Watts
SU20-12-24S
SU20-24-24S
SU20-24F-24S
SU20-48-24S
SU20-48F-24S
20W
24
833
series
10
8
ohms
1000 pF
2:1 Range: -25°C…+70°C (at Full Load)
4:1 Range: -25°C…+70°C (with derating)
-55°C…+105°C
+100°C max.
±0.02%
Per°C
95% RH
>550,000 h @ 25°C (MIL-HDBK-217F)
2.0 x 2.0 x 0.45 Inches ( 50.8 x 50.8 x 11.4 mm ) Tolerance
±0.5
mm
Nickel-Coated Copper with Non-Conductive Base, Six-side shielded.
70 g
Free-air convection
CE (Pending)
EN 55022 class A
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
SU20-12-5D
SU20-12-12D
SU20-24-12D
SU20-24F-12D
SU20-48-12D
20W
SU20-48F-12D
SU20-12-15D
SU20-24-15D
SU20-24F-15D
SU20-48-15D
SU20-48F-15D
20W
SU20-12-5S12D
SU20-24-5S12D
SU20-48-5S12D
20W
5/±12
2500/
±300
±1%
/
±5%
±3%
/
±5%
None
SU20-12-5S15D
SU20-24-5S15D
SU20-48-5S15D
20W
5/±15
2500 /
±250
SU20-24-5D
SU20-24F-5D
SU20-48-5D
SU20-48F-5D
π
type
3.3
5
12
±2%
4000
4000
1670
±0.5%
±0.5%
<0.2% Vout +20mV max (Vp-p)
<0.5% Vout +50mV max (Vp-p)
±10%
2:1 Range :200KHz
4:1 Range :250KHz
Works over 120% of rating and recovers automatically.
Zener diode clamp
Hiccup, auto-recovery
1600 VDC.
Model No.
( Dual、Triple Output )
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
Trim
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
Safety
Agency Approvals
EMC
EMI (Conducted & Radiated Emission)
10
8
ohms
1000 pF
2:1 Range: -25°C…+70°C (at Full Load)
4:1 Range: -25°C…+70°C (with derating)
-55°C…+105°C
+100°C max.
±0.02%
Per°C
95% RH
>550,000 h @ 25°C (MIL-HDBK-217E)
2.0 x 2.0 x 0.45 Inches ( 50.8 x 50.8 x 11.4 mm ) Tolerance
±0.5
mm
Nickel-Coated Copper with Non-Conductive Base, Six-side shielded.
70 g
Free-air convection
CE (Pending)
EN 55022 class A
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
π
type
±5
±12
±15
±2%
±2000
±833
±660
±0.5%
±3%
<0.2% Vout +20mV max (Vp-p)
<0.5% Vout +50mV max (Vp-p)
±10%
2:1 Range :200KHz
4:1 Range :250KHz
Works over 120% of rating and recovers automatically.
Zener diode clamp
Hiccup, auto-recovery
1600 VDC.
20W
WWW.AsTRODYNE.COM
AsTRODYNE usA: 1-800-823-8082
-2-
AsTRODYNE PACIFIC: 886-2-26983458
Encapsulated DC-DC Converter
Is o la t ed a nd Re gu lated 2 0 WATT Mod ular DC/DC Conv er ters
MECHANICAL DIMENSION
( Top View )
PIN#
1
2
3
4
5
6
7
Single
ON / OFF
-VIN
+VIN
TRIM
-VOUT
+VOUT
NC
Dual
ON / OFF
-VIN
+VIN
TRIM
-VOUT
COMMON
+VOUT
SU20 SERIES
su20
20 Watts
Triple
ON / OFF
-VIN
+VIN
-VOUT
COMMON
+5V OUT
+VOUT
series
OUTPUT NOISE
The output noise is measured with 0.1 F tantalum capacitor.
DERATING
REMOTE ON/OFF CONTROL
BLOCK DIAGRAM
WWW.AsTRODYNE.COM
-3-
AsTRODYNE usA: 1-800-823-8082
AsTRODYNE PACIFIC: 886-2-26983458
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