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DCR contents are modified as follows in order to incorporate the latest comments and agreements made by the Manufacturer (LEACH) and CNES.
The DCR attachment is changed to be 3602/010 draft 4C which includes all the changes in the final version of this DCR.
Note: This DCR now also implements the use of alternate publishing software for this specification (was: GlobalView; is now: WORD2010).
Item 4) Deleted
Item 5) Deleted
Item 8) Para 4.4.1
Delete item and replace with the following:
Case details are amended (to be consistent with other ESCC Relay Detail Specs); 2nd sentence, “electro-deposited tin shall not be used”, is deleted (as it is considered redundant). 3rd sentence is amended to read “Tin lead alloy plating may be used”.
Item 11) Para 4.7.1 & Table 4
Delete item and replace with the following:
Miss Test is renamed ‘Run-in’ and Table 4 is used to specify Parameter Drift Values.
Miss Test Contact Resistance limit is deleted from Table 4 and replaced by Latch Voltage & Reset Voltage drift values.
Drift value limits are not specified at this time. Drift values are to be recorded for information purposes only in order to amass data so that suitable drift value limits can be specified at a later date (in a later revision).
Item 13) Table 2 & Table 3
Delete item and replace with the following:
Contact Voltage Drop test current is specified (=100mA maximum to be consistent with the generic spec).
The VD max limit is specified as 0.05 x ITEST (based on 50mOhm value from Table 1(b) for contact resistance and the test current of 100mA maximum).
Item 15) Deleted.
Item 21) Table 6
Add the following note to this item and delete reference to +/-15%:
Note - Drift value limits are not specified in the table at this time. Drift values are to be recorded for information purposes only in order to amass data so that suitable drift value limits can be specified at a later date (in a later revision). Note 1 is added to clarify this position.
Item 23) Table 6
Delete item and replace with the following:
The following Contact Voltage Drop limits are amended:
• Overload: 1.4V maximum during monitoring (clarification only; no actual change); 0.1 x ITEST (= 10mV) (was 20mV) maximum during final measurements.
• Intermediate Current: 300mV maximum during monitoring (clarification only; no actual change); 0.1 x ITEST (= 10mV) (was 20mV per DCR 157) maximum during final measurements.
• Operating Life Resistive (= Resistive Life): 2.8V maximum during monitoring (clarification only; no actual change); 0.1 x ITEST (= 10mV) (was 20mV) maximum during final measurements.
• Operating Life Low Level Load and Mechanical Life (= Low Level Life): 0.1 x ITEST (= 10mV) maximum during final measurements (clarification only; no actual change).
Item 24) Table 6
Coil Life is added to the list of tests added to the Table.
Add New Item 26) Table 1(a), Figure 2
Variants 07, 08 are deleted (as requested by Leach)
Add New Item 27) Table 1(a), Figure 2
The description of package & terminals for all Variants is amended as follows (to be consistent with MIL terminology):
• “Plain Case” changed to “Plain Case (No Mount)”
• “Horizontal Shoulder Brackets” changed to “Raised Vertical Flange Mount”
• “Vertical Shoulder Brackets” changed to “Horizontal Flange Mount”
• “Plug-in Terminals” changed to “Solder Pin Terminals”
• “Hook-end Terminals” changed to “Solder Hook Terminals”
Add New Item 28) Figure 2
Dimensions as follows are amended (as requested by Leach) (see attachment for details):
Variant 01: D
Variant 02: D H K
Variant 03: C D
Variant 04: D
Variant 05: D
Variant 06: D H K
Variant 09: D
Variant 10: D
C is new for figure 2b
Add New Item 29) Para 4.4.2
Lead material is amended to be type F or D (was H). Finish type 4 is added as an equivalent option to current type 3 (i.e. D3, D4, F3 or F4) (as requested by Leach) (see also Item 31 below)
Add New Item 30) Table 3
For Latch & Reset voltage, the maximum limit for UR=12V is amended to be 9V (was 9.8V) (as requested by Leach).
Add New Item 31) Appendix A for Leach International Europe
Add Appendix to detail the following deviations:
• Deviation to Materials & Finishes – Terminals: to allow a modification to finish type 3 such that: tin-lead plating shall have a composition of 85 to 95% tin (remainder lead) (was 30 to 70% tin (remainder lead)) (as requested by Leach).
• Deviations to Chart F4 High Level Sine Vibration & High Level Mechanical Shock tests which shall be not applicable for Leach (as requested by Leach due to the increased level in the Generic spec not yet having been assessed).
• Deviations to Chart F4: Coil Life subgroup test sequence (under Endurance Subgroup 1): Coil Life and the subsequent tests shall only be performed for Qualification. They are not required for Periodic Testing except in the case of any significant change to the design (as confirmed by Leach)
In the Justification section:
Item d) Delete item and replace with the following:
d) Implement drift measurement for Latch Voltage & Reset Voltage during Screening (over Run-in) and during Qualification and Periodic Testing on specific tests (see items 11 & 21 above). Limits have not been specified at this time due to lack of applicable performance data. Measurements will now be recorded for information purposes so that suitable drift value limits can be specified at a later date in a further revision of this specification.
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