00title405a

OUTPUT SPECIFICATIONS

00title405a

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

Mechanical Characteristics

Length:50.8mm

Height: 11.0mm

Width: 50.8mm

Weight: 60.0g Typ

GENERAL SPECIFICATIONS

Operating Temperature
-40°C to +55°C
Isolation Resistance
109 ohms min
Case Temperature
+100°C max
Isolation Capacitance
2500pF max
Storage Temperature
-55°C to +100°C
Switching Frequency
250 KHz min
Humidity
95% max
Case Material
Six-Sided Shield Case
Cooling
Free-Air Convection
Potting Material
Epoxy(UL94-V0)
Efficiency
92% typ
Conducted Emissions
EN55022 Class A
Isolation Voltage
1500 VDC min
Radiated Emissions
EN55022 Class A

2:1 60W SINGLE OUTPUT

Model No

INPUT VOLTAGE
(DC)

OUTPUT VOLTAGE
(DC)

OUTPUT CURRENT
(mA)

INPUT CURRENT(mA)

EFF
(%)

CAPACITOR
LOAD
(Max)

FULL LOAD

NO LOAD

WHKS-1203.3
9-18
3.3
14000
4231
160
91
1000uF
WHKS-1205
9-18
5
12000
5505
160
91
1000uF
WHKS-1212
9-18
12
5000
5430
160
92
220uF
WHKS-1215
9-18
15
4000
5430
160
92
100uF
WHKS-1224
9-18
24
2500
5556
160
90
47uF
WHKS-2403.3
18-36
3.3
14000
2092
100
92
1000uF
WHKS-2405
18-36
5
12000
2778
100
92
1000uF
WHKS-2412
18-36
12
5000
2701
100
93
220uF
WHKS-2415
18-36
15
4000
2690
100
93
100uF
WHKS-4803.3
36-75
3.3
14000
1046
50
92
1000uF
WHKS-4805
36-75
5
12000
1354
50
92
1000uF
WHKS-4812
36-75
12
5000
1356
50
92
220uF
WHKS-4815
36-75
15
4000
1358
50
92
100uF

ELECTRICAL SPECIFICATIONS

Input Voltage Range
2:1 Input Range
Line Regulation
+/-0.5% max
Input Filter
Pi Network
Load Regulation
+/-0.5% max
Protection
Fuse Recommended
Minimum Load
10% of Full Load
OVLO(Over Voltage Lockout)
See Table 1
Short Circuit Protection
Continuous
UVLO(Under Voltage Lockout)
See Table 1
Short Circuit Restart
Automatic
OVLO & UVLO Circuit Restart
Automatic
Overload Protection
150% typ
Voltage Setpoint Accuracy
+/-2% max
Over Voltage Protection
Built-in
Temperature Coefficient
+/-0.03%/°C
Transient Response
500uS max
Ripple & Noise(20MHz BW)
100mVp-p max
External Trim Adj. Range
+/-10%
00title405a

MECHANICAL DIMENSIONS &
RECOMMENDED FOOTPRINT DETAILS

00title405a

SIMPLIFIED SCHEMATIC &
INPUT OPERATING VOLTAGE TABLE

WG1-SCHEMATIC-1
WG1-SCHEMATIC-2
WG1-FOOTPRINT
WG1-DIMENSIONS
side-bg11b
side-bg11
side-bg12
side-bg-crn1
page4s1
btn-blk
side-bg11
side-bg-crn
btn-co-j1
00002