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HIGH-EFFICIENCY SWITCHING REGULA T ORS
78SR Series
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: (508) 339-3000
(800) 233-2765
Fax: (508) 339-6356
ww.datel.com
E-mail: sales@datel.com
www.cdpowerelectronics.com
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not
imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444
Internet: www.datel-europe.com E-mail: datel.ltd@datel.com
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01
Internet: www.datel-europe.com E-mail: datel.sarl@datel.com
DATEL GmbH München, Germany Tel: 89-544334-0
Internet: www.datel-europe.com E-mail: datel.gmbh@datel.com
DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
Internet: www.datel-co.jp E-mail: salestko@datel.co.jp, salesosa@datel.co.jp
DATEL China Shanghai, China Tel: 011-86-51317131
E-mail: davidx@datel.com
ISO 9001:2000 REGISTERED
DS-0540C
9/04
A SUBSIDIARY OF C&D TECHNOLOGIES
Mechanical Specications
MECHANICAL DIMENSIONS: Inches (mm)
TOLERANCES:
2 PL DEC ±0.02 (±0.51)
3 PL DEC ±0.010 (±0.254)
DATEL Part No.
Output Voltage
Output Current
Input Voltage
Standard Pin Package
7803SR
+3.3Vdc
0.5A
+7.5-36Vdc
7805SR
+5.0Vdc
0.5A
+7.5-36Vdc
7812SR
+12.0Vdc
0.4A
+15-36Vdc
Horizontal Pin Package
7803SRH
+3.3Vdc
0.5A
+7.5-36Vdc
7805SRH
+5.0Vdc
0.5A
+7.5-36Vdc
7812SRH
+12.0Vdc
0.4A
+15-36Vdc
Ordering Information
Figure 1. Typical Connections
7812SR Efciency
65%
70%
75%
80%
85%
90%
95%
100%
14
16
18
20
22
24
26
28
30
32
34
36
38
40
INPUT VOLTAGE (Volts DC)
0
50
100
150
200
250
300
350
400
14
16
18
20
22
24
26
28
30
32
34
36
38
40
INPUT VOLTAGE (Volts DC)
400mA Load
200mA Load
40mA Load
400mA Load
200mA Load
40mA Load
INPUT
CURRENT
(mA)
EFFICIENCY
7812SR Input Current
1
2
3
+5Vdc
@ 500mA
+7.5 - 36Vdc
+VIN +VOUT
7805SR
GND
+VIN +VOUT
GND
11
0.75
(19.1)
0.41
(10.4)
OUTPUT
(+V
OUT
)
PC-Board Hole:
0.037 - 0.043
(0.94 - 1.09) Dia.
GND
INPUT
(+V
IN
)
0.21
(5.3)
Pins: 0.025 (0.64) sq.
0.100 (2.54)
centers
0.15
(3.8) Min.
0.19
(4.8)
123
PC-Board Hole:
0.037 - 0.043
(0.94 - 1.09) Dia.
Pins: 0.025 (0.64) sq.
0.100 (2.54)
centers
L1
Horizontal Package
(H Pin Option)
0.15
(3.8) min.
0.35
(8.9) max.
L1
Standard Package
OUTPUT
(+V
OUT
)
GND
INPUT
(+V
IN
)
123