2779B

更新时间： 2024-02-27 18:41:17

品牌	Logo	应用领域
BEL		变压器
页数	文件大小	规格书
2页	54K
描述
HIGH FREQUECY MAGNETICS T1/E1 Surface Mount Transformer

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技术参数
数据手册

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2779B 技术参数

生命周期：	Active	Reach Compliance Code：	compliant
ECCN代码：	EAR99	风险等级：	5.67
其他特性：	DATA COUPLING	高度：	8.89 mm
长度：	12.7 mm	安装特点：	SURFACE MOUNT
最高工作温度：	85 °C	最低工作温度：	-40 °C
物理尺寸：	12.7mm X 10.92mm X 8.89mm	表面贴装：	YES
变压器类型：	TELECOM TRANSFORMER	宽度：	10.92 mm
Base Number Matches：	1

2779B 数据手册

HIGH FREQUECY MAGNETICS

T1/E1 Surface MountTransformer

TM00136

•

Operates at the T1 rate of 1.544 Mbits/s and at the

E1 rate of 2.048 Mbits/s

•

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

Meets IEC 695, 2-2 flammability requirements

Designed for transmit and receive line interface

applications

PWB Process Capability: standard printed wiring board

assembly techniques, total-immersion cleaning

•

Can replace 2771C with no PWB changes

Low-capacitance design for EMI suppression

1500-Volt isolation

•

Reliability testing: Shock, vibration, temperature cycling,

temperature - humidity - bias

ELECTRICAL SPECIFICATIONS AT 25° C

DCR

Nominal Turns

Leakage

Minimum

Inductance²

mH min

Ratio

±2%

Inductance³

Ω

max

Interwinding

Capacitance¹

pF typ

Interwinding

Breakdown

Voltage¹

µH max

Part Number

(4-1):(5-8)¹

(4-1)¹

(5-8)¹

(4-1)¹

Vrms

2779B

1CT : 2 CT

3.0

1.6

3.1

3.0

1500

1. connect 2 to 3 & 6 to 7

2. measured at 10 kHz, 0.1 Vac

3. measured at 100 kHz

SCHEMATIC

2779B

1 CT : 2 CT

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

T1-81

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