Datasheet > ALFR-2B1000F

ALFR-2B1000F

更新时间： 2022-12-17 09:13:30

品牌	Logo	应用领域
TTELEC		电信
页数	文件大小	规格书
2页	161K
描述
Telecommunications Line Feed Resistors

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ALFR-2B1000F 数据手册

Telecommunications

Line Feed Resistors

ALFR-2B Series

• 1% tolerance

• Auto-insertable, small size

• Withstands lightning surges

• 4.8 ohm to 1600 ohm range

• Opens safely under power cross

• Flameproof inorganic construction

• Meets all test and specifications of GR-1089 & UL-497A

• Meets FCC and EIA requirements and is UL-497A approved

Environmental Data

Characteristics

Limits-ALFR-2B

2 watts

Wattage

Temperature Coefﬁcient

Tolerance

50 ppm/°C

1% and 5%

Load Life (1000 hours)

Temperature Cycling

Short Time Overload (5x RW for 10 sec.)

Moisture Load

1%∆R maximum

4.8 to 1600 ohms

Resistance Range

Lightning Surge (1000V-10/1000µsec.)

25 negative & 25 positive surges (2 minute intervals)

No failures

DESIGN & CONSTRUCTION:

The Line Feed Resistor is a tight tolerance, stable resistor which has the additional capability to withstand both in rush currents

and certain lightning pulse surges but would fuse safely when exposed to overload conditions such as the 600 volt power cross

speciﬁed in GR-1089.

General Note

IRC reserves the right to make changes in product speciﬁcation without notice or liability.

All information is subject to IRC’s own data and is considered accurate at time of going to print.

A subsidiary of

TT electronics plc

Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

ALFR-2B Series Issue October 2008 Sheet 1 of 2

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