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835-01046: 产品描述SMPS Transformer, 7W; 产品类别电源管理变压器; 文件大小49KB，共2页; 制造商Elec & Eltek; 官网地址http://www.eleceltek.com

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835-01046概述

SMPS Transformer, 7W

835-01046规格参数

参数名称	属性值
是否无铅	含铅
是否Rohs认证	不符合
厂商名称	Elec & Eltek
Reach Compliance Code	unknown
ECCN代码	EAR99
其他特性	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.262
高度	11.43 mm
最大输入电压	57 V
最小输入电压	24 V
长度	12.7 mm
制造商序列号	835-01046
安装特点	SURFACE MOUNT
初级绕组数量	2
次级绕组数量	2
最大工作频率	250 kHz
最高工作温度	85 °C
最低工作温度	-40 °C
输出电压 1	5 V
包装方法	TAPE & REEL
物理尺寸	L12.7XB15.24XH11.43 (mm)
额定功率	7 W
初级电感	155 µH
表面贴装	YES
变压器类型	SMPS TRANSFORMER
宽度	15.24 mm
Base Number Matches	1

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E & E Magnetic Products Limited

POWER TRANSFORMER

Flyback Transformer for PoE

For Texas Instruments TPS23753 (PD) Controller

CHEMATICS

Flyback transformers designed for PoE (IEEE802.3af)

powered devices with up to 7 Watts

Designed for 250kHz switching frequency (continuous mode)

with input of 24 - 57V

Low Leakage Inductance

Hipot voltage: 1500Vrms

Operating temperature -40°C to +85°C.

RoHS compliant version is available

Custom design is also available

LECTRICAL

PECIFICATION @

25°C

Part

Number

835-01045

835-01046

RoHS

Part

Number

835-01045F

835-01046F

Turns Ratio

Pri : Sec

1 : 0.19

1 : 0.262

Pri : Bias

1 : 0.667

Inductance

at 0A

(uH ± 10%)

155

Inductance Leakage

at Ipk

Inductance

(uH Min)

(uH Max)

139.5

4.00

3.60

DCR

(mOhm Max)

Pri

414

Bias

822

Sec

Ipk

(A)

Secondary

Output

0.65 Vout=3.3V,2.12A

0.65

Vout=5.0V,1.4A

Notes:

1. Inductance is measured at 250kHz, 0.1Vrms, 0Adc.

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

3. DCR for the secondary is per winding.

4. Leakage Inductance measured between pins 3 and 4 with all other pins shorted.

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

6. Output of the secondary is with the windings connected in parallel. Bias winding output is 12V, 20mA.

7.Operating temperature range: -40°

to +85°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

PX235(02)

Revised in 08/08

835-01046相似产品对比

	835-01046	835-01046F	835-01045F	835-01045
描述	SMPS Transformer, 7W	SMPS Transformer, 7W, ROHS COMPLIANT	SMPS Transformer, 7W, ROHS COMPLIANT	SMPS Transformer, 7W
是否无铅	含铅	不含铅	不含铅	含铅
是否Rohs认证	不符合	符合	符合	不符合
厂商名称	Elec & Eltek	Elec & Eltek	Elec & Eltek	Elec & Eltek
Reach Compliance Code	unknown	unknown	unknown	unknown
ECCN代码	EAR99	EAR99	EAR99	EAR99
其他特性	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.262	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.262	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
高度	11.43 mm	11.43 mm	11.43 mm	11.43 mm
最大输入电压	57 V	57 V	57 V	57 V
最小输入电压	24 V	24 V	24 V	24 V
长度	12.7 mm	12.7 mm	12.7 mm	12.7 mm
制造商序列号	835-01046	835-01046	835-01045	835-01045
安装特点	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT
初级绕组数量	2	2	2	2
次级绕组数量	2	2	2	2
最大工作频率	250 kHz	250 kHz	250 kHz	250 kHz
最高工作温度	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C
输出电压 1	5 V	5 V	3.3 V	3.3 V
包装方法	TAPE & REEL	TAPE & REEL	TAPE & REEL	TAPE & REEL
物理尺寸	L12.7XB15.24XH11.43 (mm)	L12.7XB15.24XH11.43 (mm)	L12.7XB15.24XH11.43 (mm)	L12.7XB15.24XH11.43 (mm)
额定功率	7 W	7 W	7 W	7 W
初级电感	155 µH	155 µH	155 µH	155 µH
表面贴装	YES	YES	YES	YES
变压器类型	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER
宽度	15.24 mm	15.24 mm	15.24 mm	15.24 mm
Base Number Matches	1	1	1	1

835-01046

835-01046概述

835-01046规格参数

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