GENERAL SPECIFICATIONS
Efficiency
See table
Isolation voltage
Input to Output
Input(Ouput) to Case
DIP
SMD
1600VDC, min
1600VDC, min
1000VDC, min
Isolation resistance
10
9
ohms, min
Isolation capacitance
300pF, max
Switching frequency
300KHz, typ
Design meet safety standard
UL1950, EN60950
Case material
Nickel-coated copper
Base material
Non-conductive black plastic
Potting material
Epoxy (UL94-V0)
Dimensions
1.25 X 0.80 X 0.40 Inch
(31.8 X 20.3 X 10.2 mm)
Weight
DIP
SMD
16g (0.55oz)
18g (0.62oz)
MTBF (Note 5)
2.941 x 10
6
hrs
ENVIRONMENTAL SPECIFICATIONS
Operating temperature
Standard
M1 (Note 6)
-25ºC ~ +85ºC (with derating)
-40ºC ~ +85ºC (non-derating)
Maximum case temperature
100ºC
Storage temperature range
-55ºC ~ +105ºC
Thermal impedance
Nature convection
20ºC/Watt
Thermal shock
MIL-STD-810D
Vibration
10~55Hz, 2G, 30minutes along X,Y and Z
Relative humidity
5% to 95% RH
EMC CHARACTERISTICS
Conducted emissions
EN55022
Level A
Radiated emissions
EN55022
Level A
ESD EN61000-4-2
Perf.
Criteria2
Radiated immunity
EN61000-4-3
Perf. Criteria2
Fast transient
EN61000-4-4
Perf. Criteria2
Surge EN61000-4-5
Perf.
Criteria2
Conducted immunity
EN61000-4-6
Perf. Criteria2
OUTPUT SPECIFICATIONS
Output power
3 Watts max
Voltage accuracy Full load and nominal Vin
± 2%
Minimum load (Note 1)
10% of FL
Line regulation LL to HL at Full Load
± 0.2%
Load regulation
25% to 100% FL Single
Dual
± 0.2%
± 1%
Cross regulation
Asymmetrical load 25% / 100% FL
± 5%
Ripple and noise 20MHz bandwidth
50mVp-p
Temperature coefficient
I
0.02% / ºC, max
Transient response recovery time
25% load step change
200uS
Over load protection
% of FL at nominal input
180% typ
Short circuit protection
Continuous, automatics recovery
INPUT SPECIFICATIONS
Input voltage range
24V nominal input (Note 2)
48V nominal input
9 – 36VDC
18 – 75VDC
Input filter
Pi
type
Input surge voltage
100mS max
24V input
48V input
50VDC
100VDC
Input reflected ripple (Note 3)
Nominal Vin and full load
20mAp-p
Start up time
Nominal Vin and constant resistor load
350mS typ
Remote ON/OFF (Note 4)
Remote off input current
DC-DC ON
DC-DC OFF
Nominal input
Open or 3.5V < Vr < 12V
Short or 0V < Vr < 1.2V
2.5mA
The VKC03 offers 3 watts of output power from a package in an IC compatible 24pin DIP
configuration without derating to 71ºC ambient temperature. VKC03 series have 4:1 wide
input voltage of 9-36 and 18-75VDC. The VKC03 features 1600VDC of isolation,
short-circuit protection and as well as five sided shielding. A safety designed meet to
EN60950 and UL1950. All models are particularly suited to telecommunications,
industrial, mobile telecom and test equipment applications.
T E C H N I C A L S P E C I F I C A T I O N
All specifications are typical at nominal input, full load and 25ºC otherwise noted
50 60 70 80 90 100
-40 -25
0
-10
25
50
75
100
0
AMBIENT TEMPERATURE (ºC)
O
U
TP
UT
P
O
W
E
R
(%
)
VKC03-48S05 Derating Curve
Nature convection
M
! V
er
si
on
M1 Version
UL E193009
TUV R3-50007936
CB JPTUV-003641
CE MARK
•
3 WATTS REGULATED OUTPUT POWER
•
4:1 WIDE INPUT VOLTAGE RANGE
•
INTERNATIONAL SAFETY STANDARD APPROVAL
•
FIVE-SIDED SHIELD
•
HIGH EFFICIENCY UP TO 78%
•
STANDARD 24 PIN DIP PACKAGE & SMD TYPE PACKAGE
•
OVER CURRENT PROTECTION
Model
Number
Input
Range
Output
Voltage
Output
Current
Input
Current
(7)
Eff
(8)
(%)
Capacitor
(9)
Load max
VKC03-24S05
9 – 36 VDC
5 VDC
500mA
147mA
75
1000uF
VKC03-24S12
9 – 36 VDC
12 VDC
250mA
169mA
78
170uF
VKC03-24S15
9 – 36 VDC
15 VDC
200mA
169mA
78
110uF
VKC03-24D05
9 – 36 VDC
± 5 VDC
± 250mA
149mA
74
± 550uF
VKC03-24D12
9 – 36 VDC
± 12 VDC
± 125mA
172mA
77
± 96uF
VKC03-24D15
9 – 36 VDC
± 15 VDC
± 100mA
172mA
77
± 47uF
VKC03-48S05
18 – 75 VDC
5 VDC
500mA
74mA
75
1000uF
VKC03-48S12
18 – 75 VDC
12 VDC
250mA
85mA
78
170uF
VKC03-48S15
18 – 75 VDC
15 VDC
200mA
86mA
77
110uF
VKC03-48D05
18 – 75 VDC
± 5 VDC
± 250mA
75mA
74
± 550uF
VKC03-48D12
18 – 75 VDC
± 12 VDC
± 125mA
86mA
77
± 96uF
VKC03-48D15
18 – 75 VDC
± 15 VDC
± 100mA
85mA
78
± 47uF
Note
1.
The VKC03 series required a minimum 10% loading on the output to maintain specified regulation. Operation under no-load condition will not damage
these devices, however they may not meet all listed specification.
2. Simulated source impedance of 12uH. 12uH inductor on series with +Vin.
3. Start
up
voltage
10 Vdc
4. The ON/OFF control pin voltage is referenced to negative input.
5.
BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40ºC. (Ground fixed and controlled environment)
6. M1 version is more efficient, therefore, it can be operated in a more extensive temperature range than standard.
7.
Maximum value at nominal input voltage and full load of standard type.
8. Typical value at nominal input voltage and full load
9. Test by minimum Vin and constant resistor load.
SMD PIN CONNECTION
PIN
SINGLE
DUAL
1
+ INPUT
+ INPUT
2
+ INPUT
+ INPUT
10
NC
COMMON
24
- INPUT
- INPUT
23
- INPUT
- INPUT
20
CTRL
CTRL
15
NC
+ OUTPUT
11
NC
COMMON
PIN
SINGLE
DUAL
12
- OUTPUT
NC
13 + OUTPUT - OUTPUT
Others
NC
NC
Others
NC
NC
DIP PIN CONNECTION
PIN
SINGLE
DUAL
1
+ INPUT
+ INPUT
2
+ INPUT
+ INPUT
10
NC
COMMON
24
- INPUT
- INPUT
23
- INPUT
- INPUT
20
CTRL
CTRL
15
NC
+ OUTPUT
11
NC
COMMON
PIN
SINGLE
DUAL
12
- OUTPUT
NC
13 + OUTPUT - OUTPUT
1. All dimensions in Inches (mm)
2. Pin pitch tolerance
I
0.014(0.35)
Suffix-SMD
1.00(25.4)
0.92(23.4)
0.44(11.2)
0.43(10.9)
0.
1
0 (
2.
5
4)
0.
1
5 (
3.
8
1)
0.2
5 (
6.3
5)
1.
2
6 (
32.
0)
0.80(20.3)
0.
02
(0
.5
)
24
13
16
20
12
1
5
9
BOTTOM
VIEW
Pin Area
0.04 x 0.02
(1.0 x 0.5)
Pin size is 0.02(0.5) Dia or
0.01 x 0.02 (0.25 x 0.50) Rectangular Pin
24
15
13
23
2
1
10
11
12
1.
2
5 (
31.
8)
0.60(15.2)
0.80(20.3)
0.40
(10.2)
0.15
(3.8)
0.
70
(
17.
8)
0.
2
0 (
5.
1)
0.18(4.6)
BOTTOM
VIEW
20