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Descriptions
According to ISO 7637-2:2011 and ISO 16750-2:2012, test pulses generated by automotive transient generators need to be verified under both no-load (open circuit verification) and loaded with specified loads.
The CA ISO is a resistor box containing all load resistors required to verify micro pulse and load dump generators according to international standards and manufacturer requirements. -
Highlights
-One single load resistor box
-Includes all required load resistor values
-Highly accurate resistors (+/-1%)
-High temperature stability
-Resistors with very low inductance
-Resistor values 0.5ohm, 1ohm, 2ohm, 4ohm, 10ohm, 20ohm and 50ohm -
Benefits
Selection of load resistors
The set of load resistors has been well selected in order to meet the wide range of source resistors specified in various national/international standards and vehicle manufacturer specifications.
The following load resistors are most used:
0.5 Ohm for Load Dump pulse as per numbers of manufacturer specifications.
1.0 Ohm for Load Dump pulse as per numbers of manufacturer specifications.
2.0 Ohm for pulse 2a and pulse 5 as per ISO 7637-2 and various manufacturer specifications.
4.0 Ohm for pulses 1, 2 and Load Dump pulse 5 as per various manufacturer specifications.
10.0 Ohm for pulses 1 and 2 as per ISO 7637-2 and various manufacturer specifications.
20.0 Ohm for pulse 1 as per ISO 7637-2 and various manufacturer specifications.
All load resistors are non-inductive and have a tolerance better than 1% as per standard requirements. They show sufficient power dissipation for the transient pulse energy.
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Applications
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ISO 16750-2
ISO 7637-1:1990
ISO 7637-2:1990
ISO 7637-2:2004
ISO 7637-2:2011
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