1965 Series Installation

1965 Series
50 Ohm Coaxial Surge Protector
INSTALLATION INSTRUCTIONS
Technical Data
5.3
(.209)
41.0
(1.61)
3.3
(0.13)
4.5 DIA.
(.177)
46
(1.81)
DIMENSIONS:
57.0
(2.24)
MM
(INCHES)
1. When the Model 1965 arrester is used for protection of radio
transmitter equipment, first review that the proper arrester
model (voltage rating) has been selected. The radio
transmission power, frequency, and system VSWR (including
VSWR contribution of the arrester) are the variables that
must be identified. Refer to Graph 1 - Protector Selection.
∅
How to Order
Part No. ......................................................Description
1965-xx-A00 ...............................................N(f) and N(f)
1965-xx-A01 ...............................................N(f) and N(m)
1965-xx-A04 ...............................................BNC(f) and BNC(f)
1965-xx-A05 ...............................................BNC(f) and BNC(m)
1965-xx-A12 ...............................................UHF(f) and UHF(f)
xx = DC Sparkover (x10 V)
(f) = female
(m) = male
2. The arrester should be located as close as practical to the
equipment being protected; typically less than 3 m (10 ft.).
Single-point grounding, as shown in the following schematic,
will improve the overall protection if the arrester is to be
located at some distance from the equipment.
T/R
EQUIP.
N
1965
4 mm
POWER GROUND
conductor to the earthing system should be 4 mm (AWG
6) or larger and not exceed 3 m in length. If the protector is
not mounted to a well-grounded bus, then the grounding
conductor should be connected directly to the ground screw
terminal on the arrester ground plate.
3. The arrester is symmetrical and bidirectional and may be
oriented in either direction – either end may be used for
the input or the output.
4. The arrester ground plate should be secured directly to an
earth-grounded bus or mounting surface. The grounding
Graph 1 - PROTECTOR SELECTION
Graph 2 - FREQUENCY CHARACTERISTICS
10 2
8
6
4
1965-60
1965-50
1965-35
2
1965-20
2
4 6 8
10 5
1.00
VSWR
1.02
1.04
.050
1.06
.075
INSERTION LOSS
.100
1.08
.125
1.10
.150
1.12
.175
1.14
VSWR
10 3
Insertion Loss (-dB)
Power (Watts)
0
.025
1.16
.200
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
10 6
107
108
10 9
Frequency (Hz)
NOTE: Radio frequency and transmit power must be known.
The above curves apply to systems with a VSWR equal to or
less than 1.2:1. Choose the protector whose curve lies first above
the power-frequency coordinates of the radio system.
For systems with a VSWR in excess of 1.2:1 (and for a more
exact determination, If desired), multiply the actual radio power by
the expression: 0.83[2xVSWR+(1+VSWR)]²
Use this new power value to enter the graph.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
10/13
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Similar pages