78253/35C Murata Power Solutions Inc, 78253/35C Datasheet

Transformers MAX253 CNVR XFRMR 3.3Vin 5Vout 1500VDC

78253/35C

Manufacturer Part Number
78253/35C
Description
Transformers MAX253 CNVR XFRMR 3.3Vin 5Vout 1500VDC
Manufacturer
Murata Power Solutions Inc
Type
Compatible Converter Transformersr
Datasheet

Specifications of 78253/35C

Power Rating
500 mW
Primary Voltage Rating
3.3 V
Secondary Voltage Rating
5 V
Mounting Style
Through Hole
Dimensions
9.52 mm L x 8.89 mm W x 6.35 mm H
Product
Toroidal Power Transformers
Height
6.35 mm
Length
9.52 mm
Number Of Outputs
2
Operating Temperature Range
- 40 C to + 85 C
Secondary Resistance
0.4 Ohms
Termination Style
Through Hole
Turns Ratio
1:5
Width
8.89 mm
Primary Voltages
5V
Current Rating
100mA
Transformer Mounting
Through Hole
Isolation Voltage
1500VDC
Peak Reflow Compatible (260 C)
Yes
Transformer Type
Pulse
Supply Voltage
3.3V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
DESCRIPTION
The 78253 series of converter transformers are
specifi cally designed for use with the MAX253
chip set to provide isolated power supplies. The
5V version can supply 1W and the 3.3V version
can supply 500mW. A centre tapped secondary
winding allows for full bridge, half bridge or
voltage doubling.
www.murata-ps.com
RoHS compliant
Maxim MAX253 compatible
3.3V and 5V versions
Isolation to 4kV
Frequency range to 500kHZ
Toroidal construction
Industry-standard pinout
UL 94 V-0 package materials
Fully encapsulated
Low profi le
Surface mount option
Industrial temperature range
www.murata-ps.com/rohs
For full details go to
DC
 
All specifi cations typical at T
SELECTION GUIDE
ORDER CODE DETAILS
78253/35(M)C CHARACTERISTICS
Parameter
Primary Inductance, L
Secondary Inductance, L
Leakage Inductance, L
Interwinding Capacitance, C
Primary D.C. Resistance, R
Volt-time Product, Et
78253/55(M)C CHARACTERISTICS
Parameter
Primary Inductance, L
Secondary Inductance, L
Leakage Inductance, L
Interwinding Capacitance, C
Primary D.C. Resistance, R
Volt-time Product, Et
78253/35(M)VC CHARACTERISTICS
Parameter
Primary Inductance, L
Secondary Inductance, L
Leakage Inductance, L
Interwinding Capacitance, C
Primary D.C. Resistance, R
Volt-time Product, Et
78253/55(M)VC CHARACTERISTICS
Parameter
Primary Inductance, L
Secondary Inductance, L
Leakage Inductance, L
Interwinding Capacitance, C
Primary D.C. Resistance, R
Volt-time Product, Et
78253/35MVC
78253/55MVC
78253/35MC
78253/55MC
78253/35VC
78253/55VC
Order Code
78253/35C
78253/55C
78253/XXMC-R
78253/XXMC
78253/XXC
Order Code
P
P
P
P
L
L
L
L
A
=25°C
S
S
S
S
Input Voltage
DC
DC
DC
DC
WW
WW
WW
WW
3.3
5.0
3.3
5.0
V
Package Type
Conditions
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
>0.1VDC
Pins 1/2 or 2/3
Conditions
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
100kHz, 250mV
>0.1VDC
Pins 1/2 or 2/3
Conditions
100kHz, 20mV
100kHz, 20mV
100kHz, 250mV
100kHz, 250mV
>0.1VDC
Pins 1/2 or 2/3
Conditions
100kHz, 20mV
100kHz, 20mV
100kHz, 250mV
100kHz, 250mV
>0.1VDC
Pins 1/2 or 2/3
6 Pin DIL
6 Pin SM
6 Pin SM
Voltage
Output
Technical enquiries - email: mk@murata-ps.com, tel:
5.0
5.0
5.0
5.0
V
MAX253 Compatible Converter Transformers
Max. Output
Current
100
200
100
200
mA
Packaging Type
Tape & Reel
Min.
0.30
1.60
Min.
0.60
1.10
Min.
Min.
110
550
190
350
30
40
18
25
Tube
Tube
Isolation
Voltage
78253 Series
1500
1500
4000
4000
V
DC
Typ.
0.38
2.00
0.30
0.40
Typ.
0.83
1.40
0.35
0.70
Typ.
3.00
4.20
0.30
Typ.
5.20
4.20
0.40
142
710
240
444
30
35
30
50
22
28
KMP_78253C_C03 Page 1 of 5
1:2.27
1:1.31
1:2.14
1:1.33
Turns
Ratio
Max.
Max.
Max.
Max.
0.46
2.40
1.00
1.00
1.10
1.70
1.00
1.50
5.00
8.00
0.50
8.00
8.00
0.60
185
850
310
540
50
50
+44 (0)1908 615232
Quantity
500
50
50
Package
Style
DIL
SM
DIL
SM
DIL
SM
DIL
SM
Units
Units
Units
Units
mH
mH
Vμs
mH
mH
Vμs
Vμs
Vμs
μH
μH
μH
μH
μH
μH
μH
μH
pF
pF
pF
pF
Ω
Ω
Ω
Ω

Related parts for 78253/35C

78253/35C Summary of contents

Page 1

... A centre tapped secondary winding allows for full bridge, half bridge or voltage doubling.   For full details go to www.murata-ps.com/rohs www.murata-ps.com SELECTION GUIDE Output Input Voltage Voltage Order Code V 78253/35C 3.3 5.0 78253/35MC 78253/55C 5.0 5.0 78253/55MC 78253/35VC 3.3 5.0 78253/35MVC 78253/55VC 5 ...

Page 2

... Isolation voltage 78253/XX(M)C (fl ash tested for 1 second) Isolation voltage 78253/XX(M)VC (fl ash tested for 1 second) PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS 6 Pin DIL 0.375 (9.52) MAX Primary 1 0.354 2 (9.0) MAX 78253/35C 3 XYYWW 0.25 (6.35) 0.135±0.02 (3.44±0.50) 0.012(0.30) 0.008(0.20) 0.40 0.1 (2.54) (10.16) ...

Page 3

... EFFICIENCY CURVES 100 100 120 100 100 80 60 78253 Series MAX253 Compatible Converter Transformers 78253/55(M)C 300 400 100 200 0 Output Current (mA) 78253/55(M)VC 0 100 200 300 400 Output Current (mA) 78253/55(M)C 0 100 200 300 400 Output Current (mA) 78253/55(M)VC 0 100 200 300 400 Output Current (mA) Technical enquiries - email: mk@murata-ps ...

Page 4

... This verify the integrity of that isolation. series has toroidal isolation transformers, with no additional insulation between pri- All products in this series are 100% production mary and secondary windings of enameled tested at their stated isolation voltage ...

Page 5

... ISO 9001 & ISO 14001 REGISTERED Murata Power Solutions, Inc. 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. Specifi ...

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