Mechanical Characteristics

Length:50.8mm

Height: 11.2mm

Width: 25.4mm

Weight: 31.2g Typ

GENERAL SPECIFICATIONS

Operating Temperature (20W)
-40°C to +75°C
Isolation Resistance
109 ohms min
Operating Temperature (30W)
-40°C to +65°C
Isolation Capacitance
3000pF max
Case Temperature
+100°C max
Switching Frequency
300 KHz min
Storage Temperature
-55°C to +125°C
MTBF
>700,000 Hours at 25°C
Humidity
95% max
Case Material
Six-Sided Shield Case
Cooling
Free-Air Convection
Potting Material
Epoxy(UL94-V0)
Efficiency
88% typ
Conducted Emissions
EN55022 Class A
Isolation Voltage
1500 VDC min
Radiated Emissions
EN55022 Class A

ELECTRICAL SPECIFICATIONS

Input Voltage Range
2:1, 4:1 Input Range
Load Regulation
+/-0.5% max
Input Filter
Pi Network
Minimum Load
10% of Full Load
Protection
Fuse Recommended
Short Circuit Protection
Continuous
OVLO(Over Voltage Lockout)
See Table 1
Short Circuit Restart
Automatic
UVLO(Under Voltage Lockout)
See Table 1
Overload Protection
130%~180%
Voltage Setpoint Accuracy
+/-2% max
Transient Response
500uS max
Temperature Coefficient
+/-0.05%/°C
External Trim Adj. Range  Vout:5V  
+/-10%
Ripple & Noise(20MHz BW)
150mVp-p max
External Trim Adj. Range  Vout:12V,15V  
-20%~+10%
Line Regulation
+/-0.3% max
.
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OUTPUT SPECIFICATIONS

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DC/DC CONVERTER
WIDE INPUT RANGE - 2:1
WFE SERIES

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SIMPLIFIED SCHEMATIC &
INPUT OPERATING VOLTAGE TABLE

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MECHANICAL DIMENSIONS &
RECOMMENDED FOOTPRINT DETAILS

2:1 30W SINGLE OUTPUT

Model No

INPUT VOLTAGE
 (DC)

OUTPUT VOLTAGE
 (DC)

OUTPUT CURRENT
 (mA)

INPUT CURRENT(mA)

EFF
(%)

CAPACITOR
LOAD
(Max)

PACK
AGE

FULL LOAD

NO LOAD

WFES-1203.3B30
9-18
3.3
7000
2292
180
85
1000uF
A
WFES-1205B30
9-18
5
6000
2841
165
88
1000uF
A
WFES-1212B30
9-18
12
2500
2778
140
90
220uF
A
WFES-1215B30
9-18
15
2000
2778
120
90
100uF
A
WFES-2403.3B30
18-36
3.3
7000
1106
120
86
1000uF
A
WFES-2405B30
18-36
5
6000
1404
95
89
1000uF
A
WFES-2412B30
18-36
12
2500
1389
40
89
220uF
A
WFES-2415B30
18-36
15
2000
1389
40
90
100uF
A
WFES-4803.3B30
36-75
3.3
7000
560
85
85
1000uF
A
WFES-4805B30
36-75
5
6000
710
60
88
1000uF
A
WFES-4812B30
36-75
12
2500
694
40
90
220uF
A
WFES-4815B30
36-75
15
2000
694
30
90
100uF
A

2:1 20W SINGLE OUTPUT

Model No

INPUT VOLTAGE
 (DC)

OUTPUT VOLTAGE
 (DC)

OUTPUT CURRENT
 (mA)

INPUT CURRENT(mA)

EFF
(%)

CAPACITOR
LOAD
(Max)

PACK
AGE

FULL LOAD

NO LOAD

WFES-1203.3A20
9-18
3.3
5000
1617
65
85
1000uF
A
WFES-1205A20
9-18
5
4000
1893
65
88
1000uF
A
WFES-1212A20
9-18
12
1666
1893
20
88
220uF
A
WFES-1215A20
9-18
15
1333
1872
20
89
100uF
A
WFES-2403.3A20
18-36
3.3
5000
809
45
85
1000uF
A
WFES-2405A20
18-36
5
4000
947
45
88
1000uF
A
WFES-2412A20
18-36
12
1666
936
20
89
220uF
A
WFES-2415A20
18-36
15
1333
926
20
90
100uF
A
WFES-4803.3A20
36-75
3.3
5000
404
40
85
1000uF
A
WFES-4805A20
36-75
5
4000
473
40
88
1000uF
A
WFES-4812A20
36-75
12
1666
473
10
88
220uF
A
WFES-4815A20
36-75
15
1333
468
10
89
100uF
A
0601-1-WFA-SCHEMATIC-1
0601-1-WFA-SCHEMATIC-2
0601-2-WFA-DIMENSIONS
0601-3-WL-FOOTPRINT
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