31037R datasheet, PDF - EEWORLD Datasheet

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31037R: DescriptionSMPS Transformer, 5W; CategoryPower management transformer; File Size238KB，2 Pages; ManufacturerWurth Elektronik

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31037R Overview

SMPS Transformer, 5W

31037R Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	FLY BACK, LENGTH DIMENSION INCLUDES TERMINAL ALSO, PUSH-PULL, TURNS RATIO: 1:1:1
Certification	UL
high	8.64 mm
length	13.36 mm
Manufacturer's serial number	31037R
Installation features	SURFACE MOUNT
Number of primary windings	3
Maximum operating frequency	500 kHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
method of packing	TAPE & REEL
physical size	L13.36XB10.16XH8.64 (mm)
rated power	5 W
Primary inductance	7.1 µH
surface mount	YES
Transformer type	SMPS TRANSFORMER
width	10.16 mm
Base Number Matches	1

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TransformingMagnetics

TM

SwitchmodePower

Gemini 7 Transformers

SMD

Features

• Economic, reliable SMD or

TH transformers or inductors

• Combine windings in series or

parallel to meet your specific

application

• Core geometry provides low

radiated noise

• Manufactured with UL94 V-O

Materials

• Surface mount products are pick

and place compatible

• Compatible with solder reflow

process to 240º C

• Off the shelf availability

• Power range: Typically 5 watts

and below

• Frequency range up to 500kHz

Applications

Mounting pattern

• Ideal for use as inductors or

transformers in DC/DC converters

for the following topologies:

- Buck/Boost

- Chokes

- Filters

- Coupled inductors

- Flyback

- Push-Pull

- SEPIC

- Cuk

- Forward converters

- Half/Full bridge

1

2

3

4

Inductance measured at 10kHz and 100mV. Tolerance is +/- 15%.

Amount of DC current that will result in approximately a 15% decrease in inductance.

RMS current rating for each single wind based on 250 circular mils per amp.

Maximum breakdown voltage between any 2 windings is 500VDC. Safety critical or high

voltage designs are available upon request as a customized product.

5 Turns ratio 1:1:1 +/- 1%.

2/12/04

Details subject to change. Contact your Midcom sales representative for additional information. Dimensions: in/mm. All tolerances are ± .010/0,25 and electrical specifications are @ 25°C unless otherwise specified.

Midcom, Inc. USA

121 Airport Drive - PO Box 1330

Watertown, SD 57201

T: 605.886.4385 ~ F: 605.886.4486

www.midcom-inc.com ~ email:sales@midcom-inc.com

Midcom, Inc. China

10/F Spectrum Tower 53 Hung to Road

Kwun Tong, Kowloon, HK

T: 852.2320.4221 ~ F: 852.2352.3272

www.midcom.com.cn ~ email:sye@midcom-inc.com

35

31037R Related Products

	31037R	31036R	31038R
Description	SMPS Transformer, 5W	SMPS Transformer, 5W	SMPS Transformer, 5W
Is it lead-free?	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	incompatible	incompatible	incompatible
Reach Compliance Code	compliant	compli	compliant
ECCN code	EAR99	EAR99	EAR99
Other features	FLY BACK, LENGTH DIMENSION INCLUDES TERMINAL ALSO, PUSH-PULL, TURNS RATIO: 1:1:1	FLY BACK, LENGTH DIMENSION INCLUDES TERMINAL ALSO, PUSH-PULL, TURNS RATIO: 1:1:1	FLY BACK, LENGTH DIMENSION INCLUDES TERMINAL ALSO, PUSH-PULL, TURNS RATIO: 1:1:1
Certification	UL	UL	UL
high	8.64 mm	8.64 mm	8.64 mm
length	13.36 mm	13.36 mm	13.36 mm
Manufacturer's serial number	31037R	31036R	31038R
Installation features	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT
Number of primary windings	3	3	3
Maximum operating frequency	500 kHz	500 kHz	500 kHz
Maximum operating temperature	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
method of packing	TAPE & REEL	TAPE & REEL	TAPE & REEL
physical size	L13.36XB10.16XH8.64 (mm)	L13.36XB10.16XH8.64 (mm)	L13.36XB10.16XH8.64 (mm)
rated power	5 W	5 W	5 W
Primary inductance	7.1 µH	4.7 µH	11.5 µH
surface mount	YES	YES	YES
Transformer type	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER
width	10.16 mm	10.16 mm	10.16 mm
Base Number Matches	1	1	1

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