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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 3601/012 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 3) 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):
• “Plain Case” changed to “Plain Case (No Mount)”
• “Horizontal Shoulder Brackets” changed to “Raised (or “Flush”) 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”
• “Lead Terminals” changed to “Long Lead Terminals”
Item 5) Figures 2(a) to 2(k)
Delete item and replace with the following:
Dimensions as follows are amended (as requested by Leach) (see attachment for details):
Variant 01: D E
Variant 02: D
Variant 04: D E N O
Variant 05: D N O
Variant 06: D E G N O
Variant 07: D E N
Variant 10: D N O
Variant 11: D E G N O
Item 10) 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 Pick-up Voltage & Drop-out 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 12) 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 13) Deleted
Item 19) 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 21) 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).
Add New Item 23) Table 1(a), Figure 2
Variants 03 08 09 are deleted (as requested by Leach).
Add New Item 24) Para 4.3.2
Maximum weight is amended for each variant (was 4g max for all variants) (as requested by Leach).
Add New Item 25) Para 4.4.1
Add the following new 2nd sentence: “Tin-lead alloy plating may be used.” (to be consistent with other ESCC relay Detail specs)
Add New Item 26) Para 4.4.2
Lead material and finish type D4 is added as an equivalent option to current type D3 (as requested by Leach) (see also Item 28 below)
Add New Item 27) Table 2
Pick-up voltage maximum limit for 12V option is amended to be 6.4V (was 6V)
For Pick-up voltage, only the maximum limits apply (minimum limits are deleted)(as requested by Leach; to be consistent with other similar ESCC specs).
Add New Item 28) Table 3
For Pick-up voltage, the maximum limits are amended to be 19.8V (for UR=26.5V), 9.9V (for UR=12V) (was 18V & 9.0V respectively)
For Drop-out voltage, the maximum limits are amended to be 14V (for UR=26.5V), 6.5V (for UR=12V) & 3.2V (for UR=6V) (was not specified previously)
(as requested by Leach)
Add New Item 29) 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 requested by Leach)
In the Justification section:
Item d) Delete item and replace with the following:
d) Implement drift measurement for Pick-up Voltage & Drop-out Voltage during Screening (over Run-in) and during Qualification and Periodic Testing on specific tests (see items 10 & 19 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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