NUMBER
TYPE
GS-12-003
TITLE
PRODUCT SPECIFICATION
PAGE
REVISION
Latch & Lock
1 of 13
AUTHORIZED BY
DATE
F
16 April 08
C. Martinez
CLASSIFICATION
UNRESTRICTED
1.0
OBJECTIVE
This specification defines the performance, test, quality, and reliability requirements of the Latch & Lock as
well as Lead Free product that meets the requirement of the European Union Directives of Restriction for
Hazardous Substances (Directive 2002/95/EC).
SCOPE
This specification is applicable to the termination characteristics of the Latch & Lock family of products which
provides a signal to signal and shield to ground termination system between a round cable and printed circuit
board.
2.0
3.0
GENERAL
This document is composed of the following sections:
Paragraph
1.0
2.0
3.0
4.0
5.1
5.2
5.3
5.4
5.5
6.0
7.0
8.0
9.1
9.2
9.3
9.4
9.5
9.6
Title
OBJECTIVE
SCOPE
GENERAL
APPLICABLE DOCUMENTS
REQUIREMENTS
Qualification
Material
Finish
Design and Construction
ELECTRICAL CHARACTERISTICS
MECHANICAL CHARACTERISTICS
ENVIRONMENTAL CONDITIONS
QUALITY ASSURANCE PROVISIONS
Equipment Calibration
Inspection Conditions
Sample Quantity And Description
Qualification Testing
Requalification Testing
Copyright FCI
Form E-3334
Rev F
PDS: Rev :F
STATUS:Released
GS-01-001
Printed: Jan 23, 2017
NUMBER
TYPE
GS-12-003
TITLE
PRODUCT SPECIFICATION
PAGE
REVISION
Latch & Lock
2 of 13
AUTHORIZED BY
DATE
F
16 April 08
C. Martinez
CLASSIFICATION
UNRESTRICTED
4.0
APPLICABLE DOCUMENTS
4.1
Specifications
4.1.1
4.1.2
4.1.3
4.2
Engineering drawings
QAP
Process drawings
Military Standards
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
MIL-STD-202F: Test methods for electronic and electrical component parts
MIL-M-20693:
Glass filled nylon
MIL-G-45204:
Gold plating (electro-deposit)
MIL-P-81728A: Sn-Pb plating
MIL-STD-1344A: Test methods for electrical connectors
4.3
Federal Specifications
4.3.1
4.3.2
QQ-N-290: Nickel plating (electro-deposited).
QQ-N-533: Beryllium copper alloy strip.
4.4
Other Standards and Specifications
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
UL-94:
ASTM B-122:
ASTM B-36:
ASTM B-103:
ASTM B-159:
Flammability
Copper Nickel Alloy
Brass
Phosphor Bronze
Phosphor Bronze
4.5
FCI Specifications
4.5.1
4.5.2
BUS-12-099: MINI PV Contact with spot of gold
BUS-12-050: BERGSTIK
4.6
FCI Lab Reports - Supporting Data
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
EL-90-04-008: Test Group 4 and 5
EL-91-02-001: Test Groups 1 thru 3
EL-91-02-001A: Test Groups 1 thru 3
EL-88-01-033: Test Group 6
11/08/89 Memo: Test Group 7
Copyright FCI
Form E-3334
Rev F
PDS: Rev :F
STATUS:Released
GS-01-001
Printed: Jan 23, 2017
NUMBER
TYPE
GS-12-003
TITLE
PRODUCT SPECIFICATION
PAGE
REVISION
Latch & Lock
3 of 13
AUTHORIZED BY
DATE
F
16 April 08
C. Martinez
CLASSIFICATION
UNRESTRICTED
5.0
REQUIREMENTS
5.1
Qualification
Connectors furnished under this specification shall be capable of meeting the qualification test
requirements specified herein.
5.2
Material
The material for each part shall be as specified herein or equivalent.
5.2.1
MINI PV Contact Body. Shall be 1/4 hard CuNi alloy, UNS C72500, in accordance with
ASTM B-122.
MINI PV Contact Spring. Shall be 1/2 hard BeCu alloy, UNS C17200, in accordance with
QQ-C-533, heat treated to full hard condition.
Outer Plug Housing and Header Plastic. Polycarbonate with UL 94 V-0 rating.
Shield Can. Shall be 1/2 hard brass in accordance with ASTM B-36.
Header Ground Terminal. Shall be 3/4 hard phosphor bronze alloy UNS-C51000 in
accordance with ASTM B-103.
BERGSTIK Header Pins. Shall be phosphor bronze alloy UNS-C51000 in accordance
with ASTM B-159.
MINI LATCH Housing. Polyphenylene Ether + Polystyrene (PPE+PS), with a UL rating of
UL 94 V-0.
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.3
Finish
5.3.1
5.3.2
5.3.3
MINI PV Contact Body. Welded gold dot, 99.95% minimum purity Au.
MINI PV Contact Spring. Gold flash over 50 microinch nickel.
Shield Can. 60/40 tin lead or pure tin preplated, 200 microinch per P-SL/B200. and MIL-
P-81728A.
5.3.4
Header Ground Terminal. 60/40 tin lead or pure tin preplated, 200 microinch per P-
SL/B200 and MIL-P-81728A.
5.3.5
Header Pins. 3 microinch gold over 30 microinch palladium nickel over 50 microinch
nickel.
Copyright FCI
Form E-3334
Rev F
PDS: Rev :F
STATUS:Released
GS-01-001
Printed: Jan 23, 2017
NUMBER
TYPE
GS-12-003
TITLE
PRODUCT SPECIFICATION
PAGE
REVISION
Latch & Lock
4 of 13
AUTHORIZED BY
DATE
F
16 April 08
C. Martinez
CLASSIFICATION
UNRESTRICTED
5.4
Design And Construction
Connectors shall be of the design, construction, and physical dimensions specified on the applicable product
drawing, and as shown in Figures 1 and 2. The plug uses FCI's Gold Dot MINI PV and MINI LATCH housing and
incorporates a shield can to provide a ground path from the cable shield thru the header ground terminals to the
PCB.
5.5
Working Parameter
Voltage Rating: 250 V DC
Current Rating: 2.5 A DC
6.0
ELECTRICAL CHARACTERISTICS
6.1
Low Level Contact Resistance
The low level contact resistance shall not exceed 25 milliohms (35 milliohms after environmental
exposure)(based on 26 AWG wire per Figure 4) when measured in accordance with MIL-STD-
1344A, Method 3002.1. The following details shall apply:
(a) Method of Connection - Attach current and voltage leads where shown in Figure 4.
(b) Test Voltage - 20 millivolts DC max open circuit.
(c) Test Current - Not to exceed 100 milliamps.
6.2
Ground Terminal to Shield Contact Resistance
The ground terminal to shield contact resistance shall not exceed 8 milliohms (14 milliohms after
environmental exposure) when measured in accordance with MIL-STD-1344A, Method 3002.1. The
following details shall apply:
(a) Method of Connection - Attach current and voltage leads where shown in Figure 4.
(b) Test Voltage - 20 millivolts DC max open circuit.
(c) Test Current - Not to exceed 100 milliamps.
6.3
Shielding System Performance
Shielding system performance varies with frequency, and should be evaluated for each special
application. The following table is representative of typical responses when measured using a swept
frequency response method as described in BUS-03-107. The response from the cable is
measured with a current probe sensor with the spectrum analyzer set to the "maximum hold"
function. The difference in response from an unshielded reference cable assembly and the shielded
cable under test is defined as the shielding performance of the connector.
Copyright FCI
Form E-3334
Rev F
PDS: Rev :F
STATUS:Released
GS-01-001
Printed: Jan 23, 2017
NUMBER
TYPE
GS-12-003
TITLE
PRODUCT SPECIFICATION
PAGE
REVISION
Latch & Lock
5 of 13
AUTHORIZED BY
DATE
F
16 April 08
C. Martinez
CLASSIFICATION
UNRESTRICTED
Figure 2 shows the physical appearance of the test samples. The cable is described as 6
conductors with an inner aluminized mylar shield, 95% coverage, and an outer tinned copper braid
shield with 95% coverage, and one 26 AWG (7/34) tinned copper drain wire.
The table results represent the difference between three standard LATCH-N-LOK shield termination
methods and a similar assembly with no electrical connection between the cable shield and
connector shield can.
Shielding Performance
Standard
27.13 dB
23.30 dB
12.24 dB
11.10 dB
Foil Wrap**
35.30 dB
31.50 dB
21.24 dB
17 25 dB
Full Can*
36.40 dB
31.80 dB
23.71 dB
18.10 dB
At 50 MHz
At 200 MHz
Avg at 30-500 MHz
Avg at 0-1000 MHz
* Tooled in 2X3 and 2X4 sizes, rear exit style only.
** All sizes, rear exit only.
7.0
MECHANICAL CHARACTERISTICS
7.1
Mating/Unmating Force
The force to mate a 2X6 position LATCH-N-LOK plug assembly with a corresponding header
assembly shall not exceed 13 pounds. The corresponding unmating force shall not be less than 3.5
pounds. The assemblies shall be mated with latches enabled and unmated with latches disabled at
a cross head speed of 0.5 inches per minute. The respective maximum and minimum forces shall
be the calculated average of the first three mating forces and first two unmating forces respectively.
7.2
Latch Durability
The plug latch cycle life shall exceed 4000 cycles when mated/unmated with a corresponding
header assembly.
7.3
Latch Retention
The plug to header assembly latching mechanism shall withstand an axial load of 20 pounds
minimum, when applied at a rate of 0.5 inches per minute and maintained for 5 seconds.
Copyright FCI
Form E-3334
Rev F
PDS: Rev :F
STATUS:Released
GS-01-001
Printed: Jan 23, 2017
