2745CA2 [BEL]

HIGH FREQUENCY MAGNETICS T1/E1 Single Through Hole Transformers; 高频磁性元件T1 / E1单通孔变形金刚


型号：	2745CA2
厂家：	BEL FUSE INC.
描述：	HIGH FREQUENCY MAGNETICS T1/E1 Single Through Hole Transformers 高频磁性元件T1 / E1单通孔变形金刚变压器电信变压器联轴器
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HIGH FREQUENCY MAGNETICS

T1/E1 Single Through Hole Transformers

TM9913

•

Compatible with water-soluble flux, total-immersion

cleaning and machine insertion

•

Operate as pulse transformers at DS1 and CEPT rates

Perform impedance matching and voltage transformation

for line transceivers

Meets IEC-695, 2-2 flammability requirements

•

Qualified per Bellcore TR-TSY-000357-1

ELECTRICAL SPECIFICATIONS at 25° C

DCR

Ω

max

Turns Ratio

Interwinding

Breakdown

Voltage

± 2%

Primary

Inductance*

mH min

Leakage

Inductance

µH max

Interwinding

Capacitance

pFmax

Shielded

Version

Part Number

Vrms min

Pri : Sec

Pri

Sec

2745AJ2

2745G3

1 : 1.07 CT

1 : 1.14 CT

1 : 1.36 CT

1 CT : 2 CT

1.0

0.8

1.3

0.7

3.0

0.50

0.95

0.85

1.55

1.00

1.10

1.2

N/A

850

___

1.75

0.92

3.15

1000

2745AK2

2741H2

2741G2

2745CA2

2745AF2

3.15

* Measured at 10 kHz, 0.1 Vac

Receive

Transmit

Lucent IC

Part Number

Application

Bel Part Number

2745AF2

2745G3

Bel Part Number

2745CA2

2745G3

T7288

CEPT 75 / CEPT 120

DS1

T7289A

DS1

2745AJ2

2745CA2

2745G3

T7290A

T7630

T1 / CEPT 75 / CEPT 120

DS1

CEPT 75.1

2745AJ2

2745CA2

2745AJ2

2745CA2

2745G3

2745AJ2

2745CA2

2745AJ2

2745CA2

2745G3

CEPT 75.2 / CEPT 120

CEPT 75.1

T7688

T7689

CEPT 75.2 / CEPT 120

DS1

2745G3

T7690

T7698

CEPT 75.1

2745AJ2

2745CA2

2745AJ2

2745CA2

CEPT 75.2 / CEPT 120

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

T124

HIGH FREQUENCY MAGNETICS

T1/E1 Single Through Hole Transformers

TM9913

SCHEMATICS

MECHANICAL

2745AF2

2745AJ2

2745CA2

2745G3

2745AF2

0.56 [14.22]

0.35 [8.89]

Primary

Secondary

max

2745AJ2

2745G3

0.110 [2.79]

0.150 [3.81]

centers

0.023 [0.584] Sq typ

(Phosphor bronze,

solder-coated)

Terminal 1 ID

Primary

Secondary

0.460

[11.68]

[6.35] max

0.250

2745CA2

Note: Unless otherwise specified, dimensions

are nominal and in inches [millimeters].

Primary

Secondary

CORPORATE

FAR EAST

EUROPE

Bel Fuse Inc.

Bel Fuse Ltd.

Bel Fuse Europe Ltd.

198 Van Vorst Street

Jersey City, NJ 07302

Tel 201-432-0463

Fax 201-432-9542

www.belfuse.com

8F / 8 Luk Hop Street

San Po Kong

Kowloon, Hong Kong

Tel 852-2328-5515

Fax 852-2352-3706

www.belfuse.com

PrestonTechnology Management Centre

Marsh Lane, Suite F23, Preston

Lancashire, PR1 8UD, U.K.

Tel 44-1772-556601

Fax 44-1772-888366

www.belfuse.com

T125

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