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

78253/35VC

Manufacturer Part Number

78253/35VC

Description

XFRMR 3.3V IN 5V OUT MAX 253 DIP

Manufacturer

Murata Power Solutions Inc

Series

78253r

Type

Compatible Converter Transformersr

Datasheet

1.7825355C.pdf (5 pages)

Specifications of 78253/35VC

Inductance

142µH

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

Operating Temperature Range

- 40 C to + 85 C

Turns Ratio

1:5

Width

8.89 mm

Primary Voltages

Current Rating

100mA

Power Rating

500mW

Transformer Mounting

Through Hole

Isolation Voltage

4000VDC

Peak Reflow Compatible (260 C)

Yes

Transformer Type

Pulse

Supply Voltage

3.3V

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Contains lead / RoHS Compliant

For Use With/related Products

MAX253

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

811-1272-5

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

78253/35VC-R

Manufacturer:

MURATA

Quantity:

10 000

Current page: 1 of 5
Download datasheet (193Kb)

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

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

=25°C

Input Voltage

3.3

5.0

3.3

5.0

Package Type

Conditions

100kHz, 250mV

>0.1VDC

Pins 1/2 or 2/3

Conditions

100kHz, 250mV

>0.1VDC

Pins 1/2 or 2/3

Conditions

100kHz, 20mV

100kHz, 250mV

>0.1VDC

Pins 1/2 or 2/3

Conditions

100kHz, 20mV

100kHz, 250mV

>0.1VDC

Pins 1/2 or 2/3

6 Pin DIL

6 Pin SM

Voltage

Output

Technical enquiries - email: mk@murata-ps.com, tel:

5.0

MAX253 Compatible Converter Transformers

Max. Output

Current

100

200

100

200

Packaging Type

Tape & Reel

Min.

0.30

1.60

Min.

0.60

1.10

Min.

110

550

190

350

Tube

Isolation

Voltage

78253 Series

1500

4000

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

KMP_78253C_C03 Page 1 of 5

1:2.27

1:1.31

1:2.14

1:1.33

Turns

Ratio

Max.

0.46

2.40

1.00

1.10

1.70

1.00

1.50

5.00

8.00

0.50

8.00

0.60

185

850

310

540

+44 (0)1908 615232

Quantity

500

Package

Style

DIL

Units

Vμs

μH

Related parts for 78253/35VC

78253/35VC Summary of contents

Page 1

... 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 5.0 5.0 78253/55MVC ORDER CODE DETAILS Order Code Package Type 78253/XXC 6 Pin DIL 78253/XXMC 6 Pin SM 78253/XXMC-R 6 Pin SM ...

Page 2

... Pin SM 0.10 (2.54) Ø0.05 (1.20) +0.006 (0.15) -0.000 (0.00) 0.04 (1.00) 78253 Series MAX253 Compatible Converter Transformers Top View Primary Secondary 0.025 (0.63) 0.021 (0.53) 0.1 (2.54) Unless otherwise stated all dimensions in inches (mm) ±0.01 (0.25). ...

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

... Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com © 2009 Murata Power Solutions, Inc. Technical enquiries - email: mk@murata-ps.com, tel: 78253 Series MAX253 Compatible Converter Transformers Leader section 15.7 (400) Min. 3.9 (100) Min. Goods ...

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