Datasheet

www.recom-power.com
REV.: 0/2019 I-3
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
R-78HE-0.3
Series
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range @ natural convection 0.1m/s
full load, 48Vin
refer to derating graph
-40°C to +105°C
-40°C to +115°C
Maximum Case Temperature 120°C
Temperature Coefficient 0.02%/K
Thermal Impedance 0.1m/s, horizontal 37K/W
Operating Altitude 2000m
Operating Humidity non-condensing 5% - 95% RH max.
Pollution Degree PD2
Shock according to MIL-STD 202G standard
Vibration according to MIL-STD 202G standard
MTBF according to MIL-HDBK-217F, G.B.
+25°C
+95°C
15000 x 10
3
hours
1000 x 10
3
hours
-40 -20 0 20 40 7060-30 -10 10 30 50 80 90 110
11510595
120100
100
80
60
40
90
70
50
30
20
10
0
Output Load [%]
Ambient Temperature [°C]
Vin ≤ 55V
55V < Vin ≤ 60V
60V < Vin ≤ 72V
Derating Graph
(@ Chamber and natural convection 0.1m/s)
SAFETY AND CERTIFICATIONS
Certificate Type (Safety) Report / File Number Standard
RoHS2 RoHS 2011/65/EU + AM2015/863
EMC Compliance Condition Standard / Criterion
Electromagnetic compatibility of multimedia equipment -
Emission requirements
with external filter EN55032, Class A and B
C1
L1
C2
GND
+V
out
+V
in
+V
out
GND
R-78HE5.0-3.0
GND
+V
in
EMC Filter suggestion according to EN55032 Class A and B
Component List
Level C1 C2 L1
Class A 2.2µF - 12µH choke RLS-126
Class B 2.2µF 2.2µF
68µH choke RLS-686