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835-00974: 产品描述SMPS Transformer, 13W; 产品类别电源管理变压器; 文件大小92KB，共2页; 制造商Elec & Eltek; 官网地址http://www.eleceltek.com

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835-00974概述

SMPS Transformer, 13W

835-00974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 1:0.166
高度	12.32 mm
最大输入电压	57 V
最小输入电压	33 V
长度	13.97 mm
制造商序列号	835-00974
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	3.3 V
包装方法	TAPE & REEL
物理尺寸	L13.97XB17.65XH12.32 (mm)
额定功率	13 W
初级电感	127 µH
表面贴装	YES
变压器类型	SMPS TRANSFORMER
宽度	17.65 mm

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E & E Magnetic Products Limited

CHEMATICS

Flyback transformers designed for PoE (IEEE802.3af)

powered devices with up to 13 Watts

POWER TRANSFORMER

Flyback Transformer for PoE

For National Semiconductor LM5070 PoE Interface

Designed for 250kHz switching frequency (continuous mode)

with input of 33 - 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

835-00974

835-00975

835-00976

RoHS

Part

Number

835-00974F

835-00975F

835-00976F

Turns Ratio

Pri : Sec

1 : 0.166

1 : 0.25

1 : 0.50

Pri : Bias

1 : 0.50

Inductance

at 0A

(uH ± 10%)

127

Inductance Leakage

at Ipk

Inductance

(uH Min)

(nH Max)

114.3

1.25

0.95

0.65

DCR

(mOhm Max)

Pri

255

222

199

Bias

310

348

308

Sec

Ipk

(A)

1.0

Secondary

Output

Vout=3.3V,4.0A

Vout=5.0V,2.6A

Vout=12V,1.08A

Notes:

1. Inductance is measured at 250kHz, 0.2Vrms, 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

PX229(01)

Revised in 07/08

835-00974相似产品对比

	835-00974	1511173418	835-00975F	835-00975	835-00976F	835-00976
描述	SMPS Transformer, 13W	2.00mm Pitch Milli-Grid Header, Through Hole, Dual Row, Vertical, 2.00m Tin	SMPS Transformer, 13W, ROHS COMPLIANT	SMPS Transformer, 13W	SMPS Transformer, 13W, ROHS COMPLIANT	SMPS Transformer, 13W
是否无铅	含铅	-	不含铅	含铅	不含铅	含铅
是否Rohs认证	不符合	-	符合	不符合	符合	不符合
厂商名称	Elec & Eltek	-	Elec & Eltek	Elec & Eltek	Elec & Eltek	Elec & Eltek
Reach Compliance Code	unknown	-	unknown	unknown	unknown	unknown
ECCN代码	EAR99	-	EAR99	EAR99	EAR99	EAR99
其他特性	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.166	-	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.25	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.25	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.5	BREADTH & HEIGHT DIM. INCLUDES TERMINALS ALSO; FLY BACK; TURNS RATIO IS 1:0.5
高度	12.32 mm	-	12.32 mm	12.32 mm	12.32 mm	12.32 mm
最大输入电压	57 V	-	57 V	57 V	57 V	57 V
最小输入电压	33 V	-	33 V	33 V	33 V	33 V
长度	13.97 mm	-	13.97 mm	13.97 mm	13.97 mm	13.97 mm
制造商序列号	835-00974	-	835-00975	835-00975	835-00976	835-00976
安装特点	SURFACE MOUNT	-	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT	SURFACE MOUNT
初级绕组数量	2	-	2	2	2	2
次级绕组数量	2	-	2	2	2	2
最大工作频率	250 kHz	-	250 kHz	250 kHz	250 kHz	250 kHz
最高工作温度	85 °C	-	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-	-40 °C	-40 °C	-40 °C	-40 °C
输出电压 1	3.3 V	-	5 V	5 V	12 V	12 V
包装方法	TAPE & REEL	-	TAPE & REEL	TAPE & REEL	TAPE & REEL	TAPE & REEL
物理尺寸	L13.97XB17.65XH12.32 (mm)	-	L13.97XB17.65XH12.32 (mm)	L13.97XB17.65XH12.32 (mm)	L13.97XB17.65XH12.32 (mm)	L13.97XB17.65XH12.32 (mm)
额定功率	13 W	-	13 W	13 W	13 W	13 W
初级电感	127 µH	-	127 µH	127 µH	127 µH	127 µH
表面贴装	YES	-	YES	YES	YES	YES
变压器类型	SMPS TRANSFORMER	-	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER	SMPS TRANSFORMER
宽度	17.65 mm	-	17.65 mm	17.65 mm	17.65 mm	17.65 mm

835-00974

835-00974概述

835-00974规格参数

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835-00974相似产品对比

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