Datasheet > 485ELC_10

485ELC_10

更新时间： 2024-11-05 07:51:39

品牌	Logo	应用领域
PROTEC		以太网以太网：16GBASE-T
页数	文件大小	规格书
5页	422K
描述
HIGH SPEED ETHERNET DATA LINE PROTECTOR

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485ELC_10 数据手册

485ELC

Only One Name Means ProTek’Tion™

HIGH SPEED ETHERNET DATA LINE PROTECTOR

DESCRIPTION

The 485ELC is low capacitance, two-stage transient voltage protector the provides primary and secondary protecꢀon

against lightning, inducꢀve switching and electrostaꢀc discharge (ESD) transient threats. The ﬁrst stage diverts the

transient current through the ground terminal return path and the second stage clamps the voltage to a safe level

without interrupꢀon of service.

The 485ELC is designed to protect data lines, transmission lines, ꢀming and control interface circuits from common-

mode (line-to-ground) or diﬀerenꢀal (line-line) transients. Terminals 1 & 2 and 3 & 4 are designed as line pairs. A

transient voltage suppressor is connected across each line pair for diﬀerenꢀal mode protecꢀon.

Capacitance over the operaꢀng voltage range is important. If capacitance is non-linear, distorꢀon, loss of data or ac-

cess to the I/O port can occur (See Figure 1).

485ELC

FIGuRE 1

TyPICAL LOꢀ CAPACITANCE CuRꢁE

APPLICATIONS

1,000

• Ethernet & Catagory 5 Systems

• RS-485 Serial Communicaꢀon Lines

• ISDN Equipment/Systems

• Video Transmission Systems

• Smoke Detector & Fire Alarm Systems

Industry

Standard Low

Capacitance TVS

Protector

FEATuRES

• Compaꢀble with IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV

• Compaꢀble with IEC 61000-4-4 (EFT): 40A - 5/50ns

• Compaꢀble with IEC 61000-4-5 (Surge): 95A, 8/20µs, Level 4 (Line-

Gnd) & 48A, Level 4 (Line-Line)

100

• Low Capacitance - 25pF

ProTek Device

• Designed for EIA Standard RS-485 Data Lines

• Permanent Two-Stage 2 Line Pair Protector

• Subnanosecond Response Time

• Common & Diﬀerenꢀal Mode Protecꢀon

• Automaꢀc Reset - Does Not Interrupt Service

• Eﬀecꢀve Against Lightning, Inducꢀve Switching and ESD

ꢁ_(OP)- Circꢂit Operaꢃng - ꢁolts

MECHANICAL CHARACTERISTICS

• Approximate Weight: 142 grams

• Flammability Raꢀng UL 94V-0

www.protekdevices.com

05039.R4 12/10

Page 1

12 3 4 5

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