Datasheet

www.recom-power.com
REV.: 4/2019 I-3
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified)
R-78B-2.0
Series
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range without derating (see graph) -40°C to +70°C
Maximum Case Temperature +105°C
Temperature Coefficient 0.02%/°C typ.
Operating Altitude 5000m
Operating Humidity non-condensing 95% RH max.
Pollution Degree PD2
Vibration 10-55Hz, 2G, 30min along X, Y and Z axis
MTBF according to MIL-HDBK-217F, G.B. +25°C 6349 x 10
3
hours
-40 -20 0 20 40 70
85
60-30 -10 10 30 50 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Output Load [%]
Ambient Temperature [°C]
Derating Graph
(@ Chamber and natural convection 0.1m/s)
PROTECTIONS
Parameter Condition Value
Short Circuit Protection (SCP) below 100mW continuous, automatic recovery
Short Circuit Input Current nom. Vin= 24VDC
<5Vout
≥
5Vout
50mA typ.
75mA typ.
REGULATIONS
Parameter Condition Value
Output Accuracy 100% load ±2.0% typ.
Line Regulation low line to high line, full load ±0.5% typ.
Load Regulation 0% to 100% load ±1.0% typ.