DC-DC Converter
JCK50 Series
Input
Characteristic
Input Voltage Range
Input Filter
Minimum
Typical
Maximum
Units
Notes & Conditions
12 V nominal
9
18
36
75
18
36
VDC
24 V nominal
48 V nominal
Internal Pi type
25
50
12 V models
Input Surge
VDC for 100 ms 24 V models
48 V models
100
ON: Logic high (3.0-12 V) or open circuit
OFF: Logic low (<1.2 V) or short pin 2 to pin 3
Remote On/Off
Output
Characteristic
Output Voltage
Initial Set Accuracy
Output Trim
Minimum
Typical
Maximum
Units
VDC
%
Notes & Conditions
3.3
15
See Models and Ratings table
At full load
1.0
10
%
See Application Notes
Minimum Load
Line Regulation
Load Regulation
A
No minimum load required
From minimum to maximum input at full load
From 0 to full load
0.5
0.5
%
%
Recovery within 1% in less than 250 µs for a 25% load
change.
Transient Response
3.0
% deviation
Ripple & Noise
100
140
mV pk-pk
%
20 MHz bandwidth. Measured using 1µF MLCC
Overload Protection
Short Circuit Protection
Maximum Capacitive Load
Temperature Coefficient
120
Continuous Trip & Restart (Hiccup mode), with auto recovery
See Models and Ratings table
0.02
%/˚C
General
Characteristic
Minimum
Typical
Maximum
Units
%
Notes & Conditions
Efficiency
91
See Models and Ratings table
Isolation: Input to Output
Isolation: Input & Output to Case
Isolation Resistance
Isolation Capacitance
Switching Frequency
Power Density
1600
1600
VDC
VDC
Ω
60 s
60 s
9
10
At 500 VDC
2000
62.5
pF
250/270
kHz
12 V input models / other models
MIL-HDBK-217F, +25 °C GB
3
W/in
Mean Time Between Failure
Weight
220
kHrs
lb (g)
0.1 (45.0)
Environmental
Characteristic
Minimum
-40
Typical
Maximum
+95
Units
°C
Notes & Conditions
Operating Temperature
Storage Temperature
Case Temperature
Thermal Protection
Humidity
See Derating Curve.
-40
+125
°C
+110
°C
115
°C
Measured at centre of case
Non-condensing
95
%RH
Cooling
Natural convection
Thermal Impedance to Air
9.5/8.5
°C/W
No heatsink / with heatsink
EMC: Emissions
Phenomenon
Standard
EN55022
Test Level
Notes & Conditions
Conducted
Class A
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