DCR contents are modified as follows in order to incorporate the latest comments and agreements made by the Manufacturers (LEACH & REL STPI) and CNES.
Amend note on Manufacturer support with regards to Leach to read as follows:
- Leach International Europe/F (is willing to support procurement of all variants and is ESCC qualified for variants 03, 04, 06, 13, 14, 16).
The DCR attachment is changed to be 3602/009 draft 4E 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 3) Table 1(a), Figure 2
Variants 05, 15, 08, 18, 09, 19 are reinstated (in spite of DCR291; at the specific request of Leach/F who states that such a design is procured by their customers for space applications, and therefore dispute the case put in DCR291 that such a design is a bad solution for mounting (05, 15) or that polarizing pins are not used (08, 18, 09, 19))
Item 4) Table 1(a), Figure 2
Delete item and replace with the following:
The description of package & terminals for all Variants is amended as follows (to be consistent with MIL terminology):
• “Horizontal Flange Mount” changed to “Raised Vertical Flange Mount”
• “Vertical Flange Mount” changed to “Horizontal Flange Mount”
• “Straight Terminals” changed to “Solder Pin Terminals”
• “Hook Terminals” changed to “Solder Hook Terminals”
Item 6) Figures 2(c) 2(d) 2(e) 2(f)
Delete item and replace with the following:
Dimensions as follows are amended (as requested by Leach) (see attachment for details)(see also DCR369):
Variant 03, 13: C F P Q
Variant 04, 14: C F Dia.P P Q
Variant 05, 15: C F P Q
Variant 06, 16: C F Dia.P PQ
Variant 08, 18: C F P Q
Variant 09, 19: C F P Q
C is the case thickness. M is redefined as the flange width (new)
E1 is new in Figure 2(c) & 2(e)
Polarizing pin location is corrected in Figure 2(c)
Dia.F is redefined as Dia.F1 in Figure 2(c) & 2(e) (coil terminals)
Dia.G is redefined as Dia.F in Figure 2(c) & 2(e) (contact terminals & polarizing pin)
Dia.G is clarified to be the inner diameter in Figures 2(d) & 2(f).
Dia.P is redefined as Dia.F1 in Figure 2(d) & 2(f)
Item 7) Deleted
Item 8) Deleted
Item 14) 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 16) Table 2 & Table 3
Delete item and replace with the following:
Contact Voltage Drop test current is amended (= 100mA minimum to 15A maximum, to be consistent with the generic spec). The VD max limit is specified as 0.01 x ITEST (based on 10mOhm value from Table 1(b) for contact resistance and the test current of 100mA to 15A)(as requested by Leach).
Item 17) Delete item and replace with the following:
For Latch Voltage & Reset Voltage delete all minimum limits. Tests are performed at both high and low (-65C) temperatures.
Note 2 is deleted.
For Latch & Reset voltage, the maximum limit for UR=28V is amended to be 18V (was 19.8V).
Item 24) 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 26) Table 6
Delete item and replace with the following:
The following Contact Voltage Drop limits are amended or clarified:
• Overload: 2.8V maximum during monitoring (clarification only; no actual change); 0.015 x ITEST (= 225mV) (was 175mV) maximum during final measurements.
• Intermediate Current: 175mV, 30mV, 18mV, 6mV (as applicable to the 4 Poles per the generic spec) during monitoring (clarification only; no actual change); 0.015 x ITEST (= 225mV) (was 175mV) maximum during final measurements.
• Operating Life Resistive (= Resistive Life): 2.8V maximum during monitoring (clarification only; no actual change); 0.015 x ITEST (= 225mV) (was 175mV) maximum during final measurements.
• Inductive Life: 2.8V maximum during monitoring (clarification only; no actual change); 0.015 x ITEST (= 225mV) (was 175mV) maximum during final measurements.
• Mechanical Life: 0.015 x ITEST (= 225mV) (was 175mV) maximum during final measurements.
Item 27) Table 6
Coil Life is added to the list of tests added to the Table.
Add New Item 29) Appendix A for Leach International Europe
Add Appendix to detail the following deviations:
• Deviation to Materials & Finishes – Terminals: To specify a different terminal material for Leach relays: Iron-Cobolt (was type H); plus 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 fully 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)
Add New Item 30) Appendix B for REL STPI
Add Appendix to detail the following deviations:
• 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 requested by REL STPI)
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 14 & 24 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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