Datasheet

www.recom-power.com
REV.: 3/2018 I-3
DC/DC Converter
Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up)
R-78HB/W
Series
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range with derating @ natural convection 0.1m/s (see graph) -40°C to +85°C
Maximum Case Temperature +100°C
Thermal Impedance 55°C/W typ.
Operating Altitude 2000m
Operating Humidity non-condensing 95% RH max.
Pollution Degree PD2
MTBF according to MIL-HDBK-217F, G.B.
+25°C
+71°C
7395 x 10
3
hours
1242 x 10³ hours
-40 -20 0 20 40 70
71 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
DIMENSION and PHYSICAL CHARACTERISTICS
Parameter
Type
Value
Material
case
potting
non-conductive black plastic, (UL94 V-0)
epoxy, (UL94 V-0)
Package Dimension (LxWxH) 12.1 x 9.7 x 24.0mm
Package Weight 4.5g
continued on next page
SAFETY AND CERTIFICATIONS
Certificate Type (Safety) Report / File Number Standard
Information Technology Equipment, General Requirements for Safety 1603123
IEC60950-1:2005, 2nd Edition + AM 2:2013
EN60950-1:2006 + AM 2:2013
EAC RU-AT.49.09571 TP TC 004/2011
RoHs 2+ RoHS 2011/65/EU + AM2015/863
EMC Compliance Condition Standard / Criterion
Electromagnetic compatibility of multimedia equipment -
Emission requirements
with external components EN55032, Class B
ESD Electrostatic discharge immunity test Air ±8kV, Contact ±4kV EN61000-4-2, Criteria A
Radiated, radio-frequency, electromagnetic field immunity test 3V/m EN61000-4-3, Criteria A