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TSC-0912 - 09.10.12
Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email:
enquiry@furse.com• Web:
www.furse.comESP LA & LB Series
54 mm
41 mm
32 mm
56 mm
Depth (all units): 18 mm
ESP LA-5/25
ESP LA-25/25
ESP LB-25/25
ESP LA-9/9
ESP LB-9/9
ESP LA-15/15
ESP LB-15/15
57 mm
68 mm
Technical specification
1
Nominal voltage (DC or AC peak) measured at 5 µA
(ESP LA-5/25, ESP LA-9/9, ESP LA-25/25, ESP LA-15/15),
0.5 mA (ESP LB-15/15) and 1 mA (ESP LB-9/9, ESP LB-25/25).
2
Maximum working voltage (DC or AC peak) measured at
1 mA leakage (ESP LA-5/25, ESP LA-9/9, ESP LA-25/25,
ESP LA-15/15) and 10 mA (ESP LB-15/15, ESP LB-9/9 and
ESP LB-25/25).
3
The maximum transient voltage let-through of the protector
throughout the test (±10%). Response time < 10 ns.
4
Test to IEC 61000-4-5:2006, ITU-T (formerly CCITT) K.20,
K.21 and K.45,Telcordia GR-1089-CORE, Issue 2:2002,
ANSI TIA/EIA/IS-968-A:2002 (formerly FCC Part 68).
5
Pin 1 connected to earth/shell.
Electrical specification
ESP LA-5/25 ESP LA-25/25 ESP LA-9/9 ESP LB-9/9 ESP LA-15/15 ESP LB-15/15 ESP LB-25/25
Nominal voltage
1
23.1 V
23.1 V
23.1 V
5.8 V
15.3 V
6.4 V
5.8 V
Maximum working voltage
U
c
2
25.7 V
25.7 V
25.7 V
6.4 V
17.1 V
7.13 V
6.4 V
Capacitance
< 500 pF
< 500 pF
< 500 pF
< 2000 pF
< 50 pF
< 50 pF
< 2000 pF
Current rating
300 mA
In-line resistance
~ 0
Ω
Transient specification
ESP LA-5/25 ESP LA-25/25 ESP LA-9/9 ESP LB-9/9 ESP LA-15/15 ESP LB-15/15 ESP LB-25/25
Let-through voltage
3
U
p
C1 test 0.5 kV 1.2/50 µs, 0.25 kA 8/020 µs to
BS EN/EN/IEC 61643-21
-
-
-
12.5 V
31.5 V
16.0 V
12.5 V
B2 test 1 kV 10/700 µs to BS EN/EN/IEC 61643-21
36.5 V
36.5 V
36.5 V
10.0 V
27.5 V
14.0 V
10.0 V
1.5 kV, 10/700 µs
4
37.5 V
37.5 V
37.5 V
10.5 V
28.5 V
14.6 V
10.5 V
Protection provided
Pins 1, 2, 3, 7
and 20 to
earth/shell
5
Pins 1-25 to
earth/shell
5
Pins 1-9 to
earth/shell
Pins 1-9 to
earth/shell
Pins 1-15 to
earth and each
other
Pins 1-15 to
earth and each
other
Pins 1-25 to
earth/shell
5
Maximum surge current
8/20 µs to ITU-T K.45:2003, IEEE C62.41.2:2002
200 A
200 A
200 A
300 A
350 A
700 A
300 A
Mechanical specification
ESP LA-5/25 ESP LA-25/25 ESP LA-9/9 ESP LB-9/9 ESP LA-15/15 ESP LB-15/15 ESP LB-25/25
Temperature range
-40 to +80 ºC
Connection type
DB-25 m-f
DB-25 m-f
DB-9 m-f
DB-9 m-f
DB-15 m-f
DB-15 m-f
DB-25 m-f
Earth connection
Shell or 150 mm earth lead (supplied)
Casing material
ABS UL94 V-0
Weight -
unit
50 g
50 g
40 g
40 g
50 g
50 g
50 g
-
packaged
70 g
70 g
50 g
50 g
60 g
60 g
70 g
Dimensions