2745F

更新时间： 2024-02-13 09:37:22

品牌	Logo	应用领域
BEL		变压器
页数	文件大小	规格书
2页	62K
描述
HIGH FREQUENCY MAGNETICS T1/E1 Through Hole Hardened Transformers

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技术参数
数据手册

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2745F 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	风险等级：	5.75
其他特性：	DATA COUPLING	高度：	8.89 mm
长度：	14.22 mm	安装特点：	THROUGH HOLE MOUNTED
最大工作频率：	25000 kHz	最小工作频率：	1 kHz
最高工作温度：	85 °C	最低工作温度：	-40 °C
物理尺寸：	L14.22XB11.68XH8.89 (mm)	表面贴装：	NO
变压器类型：	TELECOM TRANSFORMER	宽度：	11.68 mm
Base Number Matches：	1

2745F 数据手册

HIGH FREQUENCY MAGNETICS

T1/E1 Through Hole Hardened Transformers

TM00128

•

Designed to operate at the DS1 rate of 1.544 Mbits/s

as a line interface transformer

•

Operating temperature range: -40° C to +85° C

Meets IEC 695, 2-2 flammability requirements

Only difference between 2745F and 2745F2 is the

terminal length

PWB Process Capability: standard printed wiring board

assembly techniques, total-immersion cleaning

Winding (3-1) can handle a 6 A surge current for 1

second

•

Reliability testing: Shock, vibration, temperature cycling,

temperature - humidity - bias

Designed for remote powering with simplex-feed

current

ELECTRICAL SPECIFICATIONS AT 25° C

DCR

Ω

Minimum

Interwinding

Breakdown

Voltage

Nominal

Inductance¹

Turns Ratio

mH Min

Leakage

Inductance

µH max

Part Number

±2%

(3-1)

(4-6)

Vrms

(3-1) : (6-4)

1CT : 2

(3-1)

3.15

max

0.65

min

0.42

max

5.2

min

4.3

(3-1)

1.7

2745F

850

2745F2

1CT : 2

5.2

1.7

1. measured at 10 kHz, 0.1 Vac

SCHEMATIC

2745F

2745F2

1 CT : 2

Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

T1-63

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