GENERAL SPEC IFICAT IO NS
Efficiency See table
Isolation voltage Input to O utput
Input(Ouput) to Case
DIP
SMD
1600VDC, min
1600VDC, min
1000VDC, min
Isolation resistance 109ohms, min
Isolation capacitance 300pF, ma
x
Switching frequency 300KHz, typ
Design meet safety standard UL1950, EN60950
Case material Nickel-coated coppe
r
Base material Non-conductive black plastic
Potting material Epoxy (UL94-V0)
Dimension s 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 106 hrs
ENVIRONMENT AL SPECIFICATIONS
Operating tem perature Standard
M1 (Note 6) -25ºC ~ +85ºC (with derating)
-40ºC ~ +85ºC (non-derating)
Maximum case temperature 100ºC
Storage te mperature 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
EM C 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 immuni ty EN61000-4-6 Perf. Criteria2
OUTPUT SPE CIFICATIONS
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 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-c ircuit protecti on and as well as five sided shieldi ng. A s afety designed meet to
EN60950 and UL1950. All models are particularly suited to telecommunications,
industrial, mobile telecom and test equipment applications.
TECHNICAL SPECIFICATION All specifications are typical at no minal input , ful l load and 25ºC otherwise no ted
50 60 70 80 90 100 -40 -25 0
-10
25
50
75
100
0
AMBI ENT TEMPER ATURE (ºC )
OUTPUT POWER (%)
VKC03-48S05 Derating Curve
Nature conv ec tion
M! V ersion
M1 Vers ion
UL E193009
TUV R3-50007936
CB JPTUV-003641
CE MARK
• 3 WATTS REGULATED OUTPUT POW ER
• 4:1 W IDE INPUT VOLTAGE RANGE
• INTERNATIONAL SAFETY STANDARD APP ROVAL
• FIV E-SIDED SH IELD
• HIG H E FFICIENCY UP TO 78%
• STANDARD 24 PIN DIP PACKAGE & SMD TYPE PACKAG E
•OVER CURRENT PROTECTION
Model
Number Input
Range Output
Voltage Output
Current Input
Current (7) Eff
(8)
(%) Capacitor
(9)
Load ma x
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% loadi ng on the out put to maintai n specified regulation. Operation under no-load condition will not damage
these devi ces, however they may not meet all listed specification.
2. Simulated source impedance of 12uH. 12uH inductor on series with +Vin.
3. Start up voltage10 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 extensi ve 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 + INP UT + INPUT
2 + INP UT + INPUT
10 NC COMMON
24 - IN PUT - INPUT
23 - IN PUT - 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 CONN ECTIO N
PIN SINGLE DUAL
1 + INPUT + INPUT
2 + INPUT + INPUT
10 NC COMMON
24 - IN PUT - INPUT
23 - IN PUT - 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 0.014(0.35)
Suffix-SMD
1.00(25.4)
0.92(23.4)
0.44(11.2)
0.43(10.9)
0.10 ( 2.54)
0.15 ( 3.81) 0.25 (6.35)
1.26 (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
)
Rectan
g
ular Pin
24
15
13
23 2
1
10
11
12
1.25 ( 31.8)
0.60(15.2)
0.80(20.3)
0.40
(10.2)
0.15
(3.8)
0.70 (17.8)
0.20 (5.1)
0.18(4.6)
BOTTOM
VIEW
20
