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2002 Sep 26
8
BCcomponents
Product specification
Low ohmic surge resistor
LSR37
4.25.1
endurance
1000 hours at 70
°C; Pn or Vmax
∆R/R max.: ±3.0% + 0.1 Ω
4.8.4
temperature coefficient
220
Ω to 910 Ω
0 to +600
× 10−6/K
1k
Ω to 10 kΩ−600 to +200 × 10−6/K
4.7
voltage proof on insulation 700 V (RMS) during 1 minute;
V-block method
no breakdown
4.6.1.1
insulation resistance
500 V (DC) during 1 minute;
V-block method
Rins min.: 104 MΩ
4.13
short time overload
room temperature;
dissipation 6.25
× Pn; 10 cycles; 5 s
on and 45 s off
∆R/R max.: ±2.5% + 0.10 Ω
high voltage pulse 10 kV;
1nF; 50
× 12/min
for Rn > 3.3 kΩ∆R/R max.: ±20%
(typical value
±10%)
12 kV ESD test; 100 pulses ESD contact discharge
∆R/R max.: ±20%
(typical value:
±10%)
4.26
active flammability
“Cheese-cloth test”
5
× Pn (RMS) duration 5 minutes
no flaming of gauze cylinder
Other test in accordance with IEC 60695
2.2
passive flammability
“Needle-flame test”
application of test flame for 20 s
no ignition of product
no ignition of under-layer
burning time less than 30 s
IEC
60115-1
CLAUSE
IEC
60068-2
TEST
METHOD
TEST
PROCEDURE
REQUIREMENTS
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