77205SC Murata Power Solutions Inc, 77205SC Datasheet

Pulse Transformer

77205SC

Manufacturer Part Number
77205SC
Description
Pulse Transformer
Manufacturer
Murata Power Solutions Inc
Datasheet

Specifications of 77205SC

Product
Pulse Transformers
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
FEATURES
DESCRIPTION
The 772 series of pulse transformers are intended
for medium power applications in switch mode
power supplies and thyristor/triac firing (e.g.
motor control applications). The standard turns
ratios may be modified on any transformer with
three windings by connecting any two windings
in series.
www.murata-ps.com
RoHS compliant
Inductance to 16.3mH
Up to 482 Vμs Et rating
PCB mounting
UL 94 V-0 package materials
Up to 4000Vrms isolation
Backward compatible with
Sn/Pb soldering systems
ATURES
www.murata-ps.com/rohs
For full details go to
 
Specifications typical at T
1 For further information, please visit www.murata-ps.com/rohs
ABSOLUTE MAXIMUM RATINGS
SOLDERING INFORMATION
SELECTION GUIDE
Turns ratio
Primary Inductance
(Min.)
Primary Et Constant
(Min.)
Leakage Inductance
(Max.)
Interwinding
Capacitance (Max.)
DC Resistance (Max.)
Primary winding
DC Resistance (Max.)
Secondary1 winding
DC Resistance (Max.)
Secondary2 winding
Isolation voltage (flash
tested for 1 second)
Operating free air temperature range
Storage temperature range
Lead Temperature 1.5mm from case for 10 seconds
Peak wave solder temperature
Pin finish
Parameter
A
= 25°C
0.25
0.23
120
1:1
1.0
2.0
50
-
1
1:1:1 2:1:1 2:1:1
0.25
0.22
0.28
120
1.0
3.0
2.5
40
0.24
0.12
0.15
120
1.0
3.5
30
Technical enquiries - email: mk@murata-ps.com, tel:
0.24
0.12
0.15
120
1.0
3.5
4.0
30
0.86
0.83
240
1:1
4.0
5.0
55
-
Order Code
1:1:1 1:1:1 2:1:1
0.90
0.76
1.10
240
4.0
11
35
0.90
0.76
1.10
240
4.0
11
18
0.84
0.38
0.50
240
4.0
2.5
11
35
0°C to 70°C
-60°C to 125°C
300°C
300˚C for 10 seconds
Matte tin with nickel pre-plate
772 Series
16.3
3.50
3.40
482
1:1
KMP_772C_B02 Page 1 of 3
18
65
-
Pulse Transformers
1:1:1 2:1:1
16.3
3.60
3.10
4.20
482
40
40
+44 (0)1908 615232
16.3
3.50
1.60
2.00
482
40
40
kVrms
Units
mH
Vμs
μH
pF
Ω

Related parts for 77205SC

77205SC Summary of contents

Page 1

... Up to 4000Vrms isolation Backward compatible with Sn/Pb soldering systems DESCRIPTION The 772 series of pulse transformers are intended for medium power applications in switch mode power supplies and thyristor/triac firing (e.g. motor control applications). The standard turns ratios may be modified on any transformer with three windings by connecting any two windings in series ...

Page 2

... All dimensions in mm (inches) XX.X±0.50(0.02), XX.XX±0.25(0.01). All pins on a 2.54 (0.1) pitch. PIN CONNECTION STYLE - 8 PIN DIP (TOP VIEW) Screen* 1 Primary 2 * Only on 77205SC www.murata-ps.com RECOMMENDED FOOTPRINT DETAILS 5.92 Unless otherwise stated all dimensions in mm (inches) ± 0.25 (0.01). ...

Page 3

... It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability lesser or greater degree depending on materials, construction and environment. This series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation ...

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