835-00865F datasheet, PDF - EEWORLD Datasheet

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835-00865F: DescriptionSMPS Transformer, 30W, ROHS COMPLIANT; CategoryPower management transformer; File Size70KB，2 Pages; ManufacturerElec & Eltek; Websitehttp://www.eleceltek.com; Environmental Compliance

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835-00865F Overview

SMPS Transformer, 30W, ROHS COMPLIANT

835-00865F Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Elec & Eltek
package instruction	ROHS COMPLIANT
Reach Compliance Code	unknown
ECCN code	EAR99
Other features	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.09
high	11.43 mm
Maximum input voltage	72 V
Minimum input voltage	36 V
length	21.84 mm
Manufacturer's serial number	835-00865
Installation features	SURFACE MOUNT
Number of primary windings	3
Number of secondary windings	3
Maximum operating frequency	250 kHz
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Output voltage 1	3.3 V
method of packing	TAPE & REEL
physical size	21.84mm X 29.21mm X 11.43mm
rated power	30 W
Primary inductance	42 µH
surface mount	YES
Transformer type	SMPS TRANSFORMER
width	29.21 mm

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E & E Magnetic Products Limited

POWER TRANSFORMER

Flyback Transformer for PoE Plus

Providing Power to PoE devices with up to 30 Watts

CHEMATICS

Flyback transformers designed for PoE Plus (IEEE802.3at)

powered devices with up to 30 Watts

Designed for 250kHz switching frequency with input of

36 - 72V and auxilliary output of 12V

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

835-00865

835-00866

835-00867

835-00868

835-00869

RoHS

Part

Number

835-00865F

835-00866F

835-00867F

835-00868F

835-00869F

Turns Ratio

Pri : Sec

1 : 0.09

1 : 0.14

1 : 0.33

1 : 0.56

1 : 0.67

Pri : Aux

1 : 0.33

Inductance

at 0A

(uH ± 10%)

42.0

Inductance

@ Ipk

(uH Min)

37.8

DCR

(Ohm Max)

Pri

Sec

Aux

Leakage

Inductance

(nH Max)

3.00

1.60

0.545

0.430

0.310

Ipk

(A)

2.6

Secondary

Output

3.3V, 9A

5V, 6A

12V, 2.5A

19.5V, 1.5A

24V, 1.25A

0.070 0.0023 0.220

0.069 0.0050 0.225

0.061

0.060

0.015

0.037

0.055

0.195

Notes:

1. Inductance is measured at 250kHz, 0.7Vrms, 0Adc.

2. Peak primary current is drawn at minimum input voltage.

3. DCR is measured with the windings connected in parallel.

4. Leakage Inductance is for the primary winding with the secondary windings shorted.

5. Turns ratio is with the primary and the secondary windings connected in parallel.

6.Operating temperature range: -40°

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.

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

Tel: (852) 2765 3888

Fax: (852) 2954 3304

PX207(01)

Revised in 06/12

835-00865F Related Products

	835-00865F	835-00865
Description	SMPS Transformer, 30W, ROHS COMPLIANT	SMPS Transformer, 30W
Is it lead-free?	Lead free	Contains lead
Is it Rohs certified?	conform to	incompatible
Maker	Elec & Eltek	Elec & Eltek
Reach Compliance Code	unknown	unknown
ECCN code	EAR99	EAR99
Other features	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.09	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.09
high	11.43 mm	11.43 mm
Maximum input voltage	72 V	72 V
Minimum input voltage	36 V	36 V
length	21.84 mm	21.84 mm
Manufacturer's serial number	835-00865	835-00865
Installation features	SURFACE MOUNT	SURFACE MOUNT
Number of primary windings	3	3
Number of secondary windings	3	3
Maximum operating frequency	250 kHz	250 kHz
Maximum operating temperature	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C
Output voltage 1	3.3 V	3.3 V
method of packing	TAPE & REEL	TAPE & REEL
physical size	21.84mm X 29.21mm X 11.43mm	L21.84XB29.21XH11.43 (mm)
rated power	30 W	30 W
Primary inductance	42 µH	42 µH
surface mount	YES	YES
Transformer type	SMPS TRANSFORMER	SMPS TRANSFORMER
width	29.21 mm	29.21 mm

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