78253XXMC-R datasheet(1/5 Pages) MURATA

部件名	78253XXMC-R

功能描述	MAX253 Compatible Converter Transformers 3.3V and 5V versions

PDF	5 Pages

Scroll/Zoom	100%

制造商	MURATA [Murata Manufacturing Co., Ltd.]

网页	http://www.murata.com

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1 / 5 page

KMP_78253C_D04 Page 1 of 5

78253 Series

MAX253 Compatible Converter Transformers

www.murata-ps.com

www.murata-ps.com/support

For full details go to

www.cd4power.com/rohs

For full details go to

www.murata-ps.com/rohs

FEATURES

n

RoHS compliant

n

Maxim MAX253 compatible

n

3.3V and 5V versions

n

Isolation to 4kVDC

n

Frequency range to 500kHZ

n

Toroidal construction

n

Industry-standard pinout

n

UL 94 V-0 package materials

n

Fully encapsulated

n

Low profile

n

Surface mount option

n

Industrial temperature range

DESCRIPTION

The 78253 series of converter transformers are

specifically 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.

Surface-mount parts

The surface-mount (M suffix) products are not

recommended for new designs. For existing designs,

however, Murata Power Solutions will continue to

manufacture and fully support these parts.

For recommended alternatives please refer to the

78253J Series datasheet.

SELECTION GUIDE

Order Code

Input Voltage

Output

Voltage

Max. Output

Current

Isolation

Voltage

Turns

Ratio

Package

Style

V

mA

VDC

78253/35C

3.3

5.0

100

1500

1:2.27

DIL

78253/35MC

SM

78253/55C

5.0

200

1500

1:1.31

DIL

78253/55MC

SM

78253/35VC

3.3

5.0

100

4000

1:2.14

DIL

78253/35MVC

SM

78253/55VC

5.0

200

4000

1:1.33

DIL

78253/55MVC

SM

ORDER CODE DETAILS

Order Code

Package Type

Packaging Type

Quantity

78253/XXC

6 Pin DIL

Tube

50

78253/XXMC

6 Pin SM

Tube

50

78253/XXMC-R

6 Pin SM

Tape & Reel

500

78253/35(M)C CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Primary Inductance, L

P

100kHz, 250mV

0.30

0.38

0.46

mH

Secondary Inductance, L

S

100kHz, 250mV

1.60

2.00

2.40

mH

Leakage Inductance, L

L

100kHz, 250mV

0.30

1.00

μH

Interwinding Capacitance, C

WW

100kHz, 250mV

30

50

pF

Primary D.C. Resistance, R

DC

>0.1VDC

0.40

1.00

Ω

Volt-time Product, Et

Pins 1/2 or 2/3

30

35

Vμs

78253/55(M)C CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Primary Inductance, L

P

100kHz, 250mV

0.60

0.83

1.10

mH

Secondary Inductance, L

S

100kHz, 250mV

1.10

1.40

1.70

mH

Leakage Inductance, L

L

100kHz, 250mV

0.35

1.00

μH

Interwinding Capacitance, C

WW

100kHz, 250mV

30

50

pF

Primary D.C. Resistance, R

DC

>0.1VDC

0.70

1.50

Ω

Volt-time Product, Et

Pins 1/2 or 2/3

40

50

Vμs

78253/35(M)VC CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Primary Inductance, L

P

100kHz, 20mV

110

142

185

μH

Secondary Inductance, L

S

100kHz, 20mV

550

710

850

μH

Leakage Inductance, L

L

100kHz, 250mV

3.00

5.00

μH

Interwinding Capacitance, C

WW

100kHz, 250mV

4.20

8.00

pF

Primary D.C. Resistance, R

DC

>0.1VDC

0.30

0.50

Ω

Volt-time Product, Et

Pins 1/2 or 2/3

18

22

Vμs

78253/55(M)VC CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Primary Inductance, L

P

100kHz, 20mV

190

240

310

μH

Secondary Inductance, L

S

100kHz, 20mV

350

444

540

μH

Leakage Inductance, L

L

100kHz, 250mV

5.20

8.00

μH

Interwinding Capacitance, C

WW

100kHz, 250mV

4.20

8.00

pF

Primary D.C. Resistance, R

DC

>0.1VDC

0.40

0.60

Ω

Volt-time Product, Et

Pins 1/2 or 2/3

25

28

Vμs

All specifications typical at T

A=25°C

类似零件编号 - 78253XXMC-R

制造商	部件名	数据表	功能描述
C&D Technologies	78253	168Kb / 2P	MAX253 Compatible Converter Transformers
Murata Power Solutions ...	78253	510Kb / 5P	MAX253 Compatible Converter Transformers
Murata Power Solutions ...	78253	589Kb / 7P	MAX253 Compatible Converter Transformers 2023
Alpha Wire	78253	409Kb / 4P	20 (19/32) AWG Tinned Copper
Murata Manufacturing Co...	78253-55MVC	525Kb / 5P	MAX253 Compatible Converter Transformers

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