835-00686 datasheet, PDF - EEWORLD Datasheet

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835-00686: DescriptionSMPS Transformer, 13.5W; CategoryPower management transformer; File Size93KB，2 Pages; ManufacturerElec & Eltek; Websitehttp://www.eleceltek.com

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835-00686 Overview

SMPS Transformer, 13.5W

835-00686 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Elec & Eltek
Reach Compliance Code	unknown
ECCN code	EAR99
Other features	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19
high	12.32 mm
Maximum input voltage	57 V
Minimum input voltage	33 V
length	13.97 mm
Manufacturer's serial number	835-00686
Installation features	SURFACE MOUNT
Number of primary windings	1
Number of secondary windings	1
Maximum operating frequency	200 kHz
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Output voltage 1	12 V
Output voltage 2	8 V
method of packing	TAPE & REEL
physical size	L13.97XB17.65XH12.32 (mm)
rated power	13.5 W
Primary inductance	77.4 µH
surface mount	YES
Transformer type	SMPS TRANSFORMER
width	17.65 mm
Base Number Matches	1

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E & E Magnetic Products Limited

POWER TRANSFORMER

Flyback Transformer for PoE

Providing Power to PoE devices with up to 13.5 Watts

CHEMATICS

Flyback transformers designed for PoE (IEEE802.3af)

powered devices with up to 13.5 Watts

Designed for 200kHz switching frequency with input of

33 - 57V and auxilliary output of various voltage

Low Leakage Inductance

Hipot voltage: 1500Vrms

Operating temperature -40°C to +125°C.

RoHS compliant version is available

Custom design is also available

LECTRICAL

PECIFICATION @

25°C

Part

Number

835-00680

835-00681

835-00682

835-00683

835-00684

835-00685

835-00686

RoHS

Part

Number

835-00680F

835-00681F

835-00682F

835-00683F

835-00684F

835-00685F

835-00686F

Turns Ratio

Pri : Sec

1 : 0.083

1 : 0.167

1 : 0.182

1 : 0.125

1 : 0.273

1 : 0.292

1 : 0.682

Pri : Aux

1 : 0.208

1 : 0.639

1 : 0.682

1 : 0.208

1 : 0.682

1 : 0.208

1 : 0.682

Inductance

at 0A

(uH

± 10

127

155.5

77.4

127

77.4

127

77.4

1500Vrms

Operational

Primary

Secondary

Isolation

(uH Min)

Leakage

Inductance

(nH Max)

7.5

0.8

7.5

DCR

(mOhm Max)

Pri

440

330

100

460

220

460

100

Pri

Aux

650

270

250

270

Sec

8.5

Vin=33-57V, Freq=200kHz

Vout=3.3V/13.5W, 8V/20mA

Vin=33-57V, Freq=200kHz

Vout=3.3V/11W, 12V/20mA

Vin=33-57V, Freq=200kHz

Vout=3.3V/13.5W, 12V/20mA

Application

Vin=33-57V, Freq=200kHz

Vout=5.0V/13.5W, 8V/20mA

Vin=33-57V, Freq=200kHz

Vout=5.0V/13.5W, 12V/20mA

Vin=33-57V, Freq=200kHz

Vout=12V/13.5W, 8V/20mA

Vin=33-57V, Freq=200kHz

Vout=12V/13.5W, 8V/20mA

Notes:

1. Inductance is measured at 200kHz, 0.1rms, 0Adc.

2. Operating temperature range: -40°C to +125°C. The part temperature (ambient temperature + temperature rise)

should not exceed the upper limit of the operating temperature under worst case operating conditions. Circuit design,

component placement, PWB trace size and thickness, airflow and other cooling provisions all affect the part

temperature. Part temperature should be verified in the end application.

3. Turns ratio is with the secondary windings connected in parallel.

4. Output of the secondary is with the windings connected in parallel.

2/F Block A, 94 Tokwawan Road, Kowloon, Hong Kong

Tel: (852) 2765 3888

Fax: (852) 2954 3304

PX210(02)

Revised in 07/09

835-00686 Related Products

	835-00686	835-00683	835-00680	835-00680F	835-00682	835-00683F	835-00686F
Description	SMPS Transformer, 13.5W	SMPS Transformer, 13.5W	SMPS Transformer, 13.5W	SMPS Transformer, 13.5W, ROHS COMPLIANT	SMPS Transformer, 13.5W	SMPS Transformer, 13.5W, ROHS COMPLIANT	SMPS Transformer, 13.5W, ROHS COMPLIANT
Is it lead-free?	Contains lead	Contains lead	Contains lead	Lead free	Contains lead	Lead free	Lead free
Is it Rohs certified?	incompatible	incompatible	incompatible	conform to	incompatible	conform to	conform to
Maker	Elec & Eltek	Elec & Eltek	Elec & Eltek	Elec & Eltek	Elec & Eltek	Elec & Eltek	Elec & Eltek
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Other features	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.19
high	12.32 mm	12.32 mm	12.32 mm	12.32 mm	12.32 mm	12.32 mm	12.32 mm
Maximum input voltage	57 V	57 V	57 V	57 V	57 V	57 V	57 V
Minimum input voltage	33 V	33 V	33 V	33 V	33 V	33 V	33 V
length	13.97 mm	13.97 mm	13.97 mm	13.97 mm	13.97 mm	13.97 mm	13.97 mm
Manufacturer's serial number	835-00686	835-00683	835-00680	835-00680	835-00682	835-00683	835-00686
Installation features	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT
Number of primary windings	1	1	1	1	1	1	1
Number of secondary windings	1	1	1	1	1	1	1
Maximum operating frequency	200 kHz	200 kHz	200 kHz	200 kHz	200 kHz	200 kHz	200 kHz
Maximum operating temperature	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Output voltage 1	12 V	8 V	8 V	8 V	12 V	8 V	12 V
Output voltage 2	8 V	5 V	3.3 V	3.3 V	3.3 V	5 V	8 V
method of packing	TAPE & REEL	TAPE & REEL	TAPE & REEL	TAPE & REEL	TAPE & REEL	TAPE & REEL	TAPE & REEL
physical size	L13.97XB17.65XH12.32 (mm)	L13.97XB17.65XH12.32 (mm)	L13.97XB17.65XH12.32 (mm)	L13.97XB17.65XH12.32 (mm)	13.97mm X 17.65mm X 12.32mm	L13.97XB17.65XH12.32 (mm)	L13.97XB17.65XH12.32 (mm)
rated power	13.5 W	13.5 W	13.5 W	13.5 W	13.5 W	13.5 W	13.5 W
Primary inductance	77.4 µH	127 µH	127 µH	127 µH	77.4 µH	127 µH	77.4 µH
surface mount	YES	YES	YES	YES	YES	YES	YES
Transformer type	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER
width	17.65 mm	17.65 mm	17.65 mm	17.65 mm	17.65 mm	17.65 mm	17.65 mm

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