Datasheet
www.recom-power.com
REV.: 3/2019 I-3
DC/DC Converter
Specifications (measured at Ta= 25°C, minimum load, otherwise specified)
R-78C-1.0
Series
EMC Compliance
Condition
Standard / Criterion
Electromagnetic compatibility of multimedia equipment -
Emission requirements
with external filter
(see filter suggestion below)
EN55032, Class A and B
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter Value
Material
case
potting
non-conductive black plastic, (UL94 V-0) 
silicone, (UL94 V-0) 
Package Dimension (LxWxH) 11.6 x 8.5 x 10.4mm
Package Weight 2g typ.
Bottom View
Top View
embossed logo
321
321
2.00
8.511.6
0.70
+0.10/-0.05
3.215.08
10.44.10
0.51
0.25
±0.05
Marking
2.54
2.54
Dimension Drawing (mm)
Recommended Footprint
Pin Connections
 Pin #  Function
 1  +Vin
 2  GND
 3  +Vout
Tolerance: xx.x= ±0.50mm
   xx.xx=  ±0.25mm
EMC Filter Suggestion according to EN55032
R-78C-1.0
C
1
C
2
GND
+V
out
+V
in
GND
+V
out
GND
+V
in
L
1
Component List Class A
Component List Class B
MODEL C1 L1
R-78C3.3-1.0
10µF
100V MLCC
5.6µH choke 
RLS-567 
R-78C5.0-1.0
MODEL C1 C2 L1
R-78C3.3-1.0
10µF
100V MLCC
10µF
100V MLCC
12µH choke 
RLS-126 
R-78C5.0-1.0
Notes:
 Note3: Filter suggestions are valid for indicated part numbers only. For other part numbers, please contact RECOM tech support for advice





