TEL50B View Datasheet(PDF) - Protek Devices
Part Name
Description
MFG CO.
'TEL50B' PDF : 3 Pages View PDF
Only One Name Means ProTek’Tion™
TEL50B
&
TEL50E
PBX LOW VOLTAGE TELEPHONE PROTECTOR
APPLICATIONS
✔ Telcom Terminal Equipment
✔ Data/Telcom Interfaces
✔ Dedicated Fax & Modem
IEC COMPATIBILITY (EN61000-4)
✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
✔ 61000-4-4 (EFT): 40A - 5/50ns
✔ 61000-4-5 (Surge): 8/20µs - 95A, Level 4 (Line-Gnd) & 48A, Level 4 (Line-Line)
FEATURES
✔ Designed for ±50 Volt (Peak) Telephone Lines
✔ 4 Wire, Line-to-Ground Protection
✔ Permanent Two-Stage Protection
✔ Subnanosecond Response Time
✔ Automatic Reset - Does Not Interrupt Service
✔ Effective Against Lightning, Inductive Switching and ESD
MECHANICAL CHARACTERISTICS
✔ Weight: TEL50B - 28 grams & TEL50E - 142 grams (Approximate)
✔ Flammability Rating UL 94V-0
✔ Device Marking:
Case - Logo, Terminal Designations & Part Number
Board - Logo, Date Code & Part Number
DESCRIPTION
The TEL50B/E is a two-stage transient voltage protector that provides primary and
secondary protection against lightning, inductive switching and electrostatic 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 interruption of service.
The TEL50B/E is designed to protect telcom lines from common mode (line-to-
ground) transients. There are four (4) independent lines referenced to the ground
terminals.
TEL50B
TEL50E
05049.R3 11/03
1
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