Datasheet

www.recom-power.com
REV.: 4/2019 I-5
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
R-78Bxx-1.0(L)
Series
INSTALLATION AND APPLICATION
Pin Connections
Pin # Negative Positive
1 +Vin +Vin
2 -Vout GND
3 GND +Vout
Positive to Negative Converter
C1 and C2 are required and should
be fitted close to the converter pins.
Maximum capacitive load including
C2 is 220µF
continued on next page
Bottom View
Top View
321
321
8.511.5
17.5
4.10
2.00
0.51
0.70
+0.10/-0.05
0.25
±0.05
2.54
2.54
Marking
embossed logo
3.21 5.08
embossed logo
Bottom View
Top View
3
21
3
21
2.00
19.0
4.10
6.10
90-93°
Marking
8.5
11.5
0.70
+0.10/-0.05
5.08
17.5
1.50
0.25
±0.05
0.51
2.54
2.54
Dimension Drawing (mm)
Pin Connections
Pin # Single
1 +Vin
2 GND
3 +Vout
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.25mm
Recommended Footprint Details
Recommended Footprint Details
with suffix “L” bent pins
1 2 3
+V
in
-V
out
C2
C1
GNDGND
R-78Bxx-1.0
2
31
+V
in
-V
out
C2
C1
+V
out
GNDGND
R-78Bxx-1.0
2
31
R-78Bxx-1.0
2
31
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter Type Value
Material
case
potting
non-conductive black plastic, (UL94 V-0)
silicone, (UL94 V-0)
Package Dimension (LxWxH) 11.5 x 8.5 x 17.5mm
Package Weight 4g typ.