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05049
TEL50B
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Only One Name Means ProT ek'TionTM
TEL50E
PBX LOW VOL AGE TELEPHONE PROTECTOR T
APPLICA TIONS Telcom Terminal Equipment Data/Telcom Interfaces Dedicated Fax & Modem IEC COMPA TIBILITY (EN61000-4) 61000-4-2 (ESD): Air - 15kV, Contact - 8kV 61000-4-4 (EFT): 40A - 5/50ns 61000-4-5 (Surge): 8/20s - 95A, Level 4 (Line-Gnd) & 48A, Level 4 (Line-Line) FEA TURES 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-toground) transients. There are four (4) independent lines referenced to the ground terminals.
TEL50B
TEL50E
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TEL50B
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TEL50E
DEVICE CHARACTERISTICS MAXIMUM RATINGS @ 25C
Peak Operatiing Line Voltage (VOP) 50VPEAK 200mA Operating Line Current (IO) 10kV Maximum Transient Voltage 10kA/Wire Maximum Transient Current (8/20s waveform) Operating & Storage Temperature Response Time 40kA/Protector -55C to 100C < 1 nanosecond
ELECTRICAL CHARACTERISTICS @ 25C
MAXIMUM CLAMPING VOLTAGE (8/20s) @ 500A VC VOLTS 95 MAXIMUM LINE THRUPUT RESISTANCE R OHMS 12 MAXIMUM LEAKAGE CURRENT @ 50VOP ID A 5 MAXIMUM CAPACITANCE
@ 0V, 1MHz C pF 800
INST ALLA TION INSTRUCTIONS
There are five (5) terminals on both the line and equipment side of the TEL50E - four telcom line terminals and one ground terminal. The ground terminal, as shown on the label, is connected internally. A single ground connection is sufficient. However, it is recommended that both ground connections be used for a lower impedance path to earth. This connection can be made through the green AC power ground wire or a known earth ground. The ground wire should be #14 stranded wire. Incoming telcom lines are cut or disconnected from the equipment to insert the TEL50E product. The line side of the terminals are to be connected to outside telephone or telecommunication lines that carry the transient threats into the equipment to be protected. The equipment side of the terminals are to be connected to the equipment to be protected. The location of the product should be such that these wires are as short as possible. A #18 or 20 gauge wire can be used for these connections. The TEL50B requires an edge connector interface for installation. A standard 15 position edge connector can be used. When mounting or wiring the connectors onto a printed circuit board, be sure that the correct terminals are soldered. The line side of the board connections are finger contacts 2 thru 5. The boards are conformal coated for limited protection against moisture. ProTek's telcom line protector is designed with a short circuit failure mode to give maximum protection. A fuse, PTC, fussable link, or circuit breaker is recommended for each signal line on the input (line) side of the protector for those applications that require an open circuit failure mode. Caution: A low DC resistance ground may not be indicative of a good lightning ground. Lightning contains a broad spectrum of frequencies up to 1 MHz. A low impedance path to ground at the transient frequencies is necessary. A ground strap is recommended or a #6 AWG stranded wire. For wire lengths over 1.5 meters, there may be some excessive line to earth potential under severe thunderstorm conditions. For these applications, an additional protector may be necessary at the equipment interface.
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TEL50B
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TEL50E
PACKAGE OUTLINE & DIMENSIONS
TEL50E CASE OUTLINE TEL50B BOARD OUTLINE
3.8 MAX (95.5mm) 3.25 0.015 (82.6mm 0.38mm)
WARNING:
0.50 MAX (12.7mm)
3.0 MAX (76.2mm)
3 EQUIPMENT
4
LINE
GND
2
1
1.125 MAX (30.2mm)
LINE
Orientation Notch
4 3 GND 2 1
2.25 MAX (57.2mm)
EQUIPMENT
0.30 MAX (7.6mm)
1.90 MAX (48.2mm)
Adhesive Mylar Label
Terminal Screw
Mounting Hole for #8 Screw
2
5 GND
12
15
CONTINUITY INPUT OUTPUT 12 5 13 4 14 3 15 2 INPUT Connected to Line From Outside World
Terminal Strip
#6 Screws 1.19 MAX (30.2mm)
OUTPUT Connected to Transmit/Receive Circuits Note: I/O contacts spaced at 0.156 (3.96mm) centers.
0.07 MAX (17.8mm)
0.61 MAX (15.5mm)
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COPYRIGHT (c) ProTek Devices 2005 SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC). DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and specifications is the buyer's and that in furnishing engineering and technical assistance, ProTek assumes no responsibility with respect to the selection or specifications of such products.
ProTek Devices 2929 South Fair Lane, Tempe, AZ 85282 Tel: 602-431-8101 Fax: 602-431-2288 E-Mail: sales@protekdevices.com Web Site: www.protekdevices.com
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