Current Carrying Capacity Report PART DESCRIPTION

Project Number:
Tracking Code: TC0720--1352
Requested by: Jeff Schreck
Date: 5/16/2007
Part #: HFHM2-020-T-05.00-DP
Product Rev: B
Lot #: TBD
Part description: HFHM2-DP
Test Start: 05/16/2007
Tech: Troy Cook
Eng: Troy Cook
Qty to test: 2
Test Completed: 7/27/2007
Current Carrying Capacity Report
PART DESCRIPTION
HFHM2-020-T-05.00-DP
Mated with QSH-DP/QTH-DP
Page 1 of 8
Tracking Code: TC0720--1352
Part #: HFHM2-020-T-05.00-DP
Part description: HFHM2-DP
CERTIFICATION
All instruments and measuring equipment were calibrated to National Institute for Standards and Technology (NIST)
traceable standards according to IS0 10012-1 and ANSI/NCSL 2540-1, as applicable.
All contents contained herein are the property of Samtec. No portion of this report, in part or in full shall be
reproduced without prior written approval of Samtec.
SCOPE
To perform the following tests: CCC
APPLICABLE DOCUMENTS
Standards: EIA Publication 364
TEST SAMPLES AND PREPARATION
1)
2)
3)
4)
5)
All materials were manufactured in accordance with the applicable product specification.
All test samples were identified and encoded to maintain traceability throughout the test sequences.
After soldering, the parts to be used for LLCR and DWV/IR testing were cleaned according to TLWI-0001.
Either an automated cleaning procedure or an ultrasonic cleaning procedure may be used.
The automated procedure is used with aqueous compatible soldering materials.
6)
7)
8)
9)
Parts not intended for testing LLCR and DWV/IR are visually inspected and cleaned if necessary.
Any additional preparation will be noted in the individual test sequences.
Solder Information: Lead Free
Re-Flow Time/Temp: See accompanying profile.
10) Samtec Test PCBs used: PCB-100800-TST-XX
Page 2 of 8
Tracking Code: TC0720--1352
Part #: HFHM2-020-T-05.00-DP
Part description: HFHM2-DP
TYPICAL OVEN PROFILE (Soldering Parts to Test Boards)
Page 3 of 8
Tracking Code: TC0720--1352
Part #: HFHM2-020-T-05.00-DP
Part description: HFHM2-DP
ATTRIBUTE DEFINITIONS
The following is a brief, simplified description of attributes.
TEMPERATURE RISE (Current Carrying Capacity, CCC):
1) EIA-364-70, Temperature Rise versus Current Test Procedure for Electrical Connectors and Sockets.
2
2) When current passes through a contact, the temperature of the contact increases as a result of I R (resistive)
heating.
3) The number of contacts being investigated plays a significant part in power dissipation and therefore
temperature rise.
4) The size of the temperature probe can affect the measured temperature.
5) Copper traces on PC boards will contribute to temperature rise:
a. Self heating (resistive)
b. Reduction in heat sink capacity affecting the heated contacts
6) A de-rating curve, usually 20%, is calculated.
7) Calculated de-rated currents at three temperature points are reported:
a. Ambient
о
b. 50 C
о
c. 70 C
о
d. 80 C
8) Typically, neighboring contacts (in close proximity to maximize heat build up) are energized.
9) The thermocouple (or temperature measuring probe) will be positioned at a location to sense the maximum
temperature in the vicinity of the heat generation area.
10) A computer program, TR 803.exe, ensures accurate stability for data acquisition.
11) Hook-up wire cross section is larger than the cross section of any connector leads/PC board traces, jumpers,
etc.
12) Hook-up wire length is longer than the minimum specified in the referencing standard.
Page 4 of 8
Tracking Code: TC0720--1352
Part #: HFHM2-020-T-05.00-DP
Part description: HFHM2-DP
RESULTS
Temperature Rise, CCC at a 20% de-rating
• CCC for a 30°C Temperature Rise -----------------------.31A per contact with 6 contacts powered in a Linear
Series
TC0720--1352
6 Contacts in Linear series
HFHM2-020-T-05.00-DP
Base Curve
Derated 20 %
RT Peak Amp
RT Derated Amp
Measured Current
50 ° C
0.7
50 ° C Peak Amp
50 ° C Derated Amp
Room Temp= 19.2 C
70 ° C
70 ° C Peak Amp
0.6
70 ° C Derated Amp
Maximum Current, Amp per Contact
Limit
0.54
75 ° C Peak Amp
75 ° C Derated Amp
0.5
75 ° C
80° C
Limit
0.43
Room Temp
0.39
0.4
0.31
0.3
0.23
0.2
0.18
0.17
0.13
0.1
Useful Range
0.0
18
28
38
48
58
Ambient Temperature, ° C
Page 5 of 8
68
78
88
Tracking Code: TC0720--1352
Part #: HFHM2-020-T-05.00-DP
Part description: HFHM2-DP
Temperature Rise, CCC at a 20% de-rating
• CCC for a 30°C Temperature Rise -----------------------.22A per contact with 12 contacts powered in a Linear
Series
TC0720--1352
12 Contacts in Linear series
HFHM2-020-T-05.00-DP
Base Curve
Derated 20 %
RT Peak Amp
RT Derated Amp
Measured Current
50 ° C
50 ° C Peak Amp
0.5
Room Temp= 18.5 C
50 ° C Derated Amp
70 ° C
0.5
70 ° C Peak Amp
70 ° C Derated Amp
0.4
Maximum Current, Amp per Contact
0.4
Limit
75 ° C Peak Amp
75 ° C Derated Amp
75 ° C
0.4
0.32
Room Temp
80° C
Limit
0.3
0.28
0.3
0.22
0.2
0.16
0.2
0.13
0.11
0.09
0.1
0.1
Useful Range
0.0
17
27
37
47
57
Ambient Temperature, ° C
Page 6 of 8
67
77
87
Tracking Code: TC0720--1352
Part #: HFHM2-020-T-05.00-DP
Part description: HFHM2-DP
DATA SUMMARIES
TEMPERATURE RISE (Current Carrying Capacity, CCC):
1) High quality thermocouples whose temperature slopes track one another were used for temperature
monitoring.
2) The thermocouples were placed at a location to sense the maximum temperature generated during testing.
3) Temperature readings recorded are those for which three successive readings, 15 minutes apart, differ less
than 1° C (computer controlled data acquisition).
4) Adjacent contacts were powered:
a. Linear configuration with six adjacent contacts powered
b. Linear configuration with twelve adjacent contacts powered
Page 7 of 8
Tracking Code: TC0720--1352
Part #: HFHM2-020-T-05.00-DP
Part description: HFHM2-DP
EQUIPMENT AND CALIBRATION SCHEDULES
Equipment #: PS-01
Description: System Power Supply
Manufacturer: Hewlett Packard
Model: HP 6033A
Serial #: (HP) 3329A-07330
Accuracy: See Manual
… Last Cal: 06/22/07, Next Cal: 06/22/08
Equipment #: MO-02
Description: Multimeter /Data Acquisition System
Manufacturer: Keithley
Model: 2700
Serial #: 0780546
Accuracy: See Manual
… Last Cal: 06/22/07, Next Cal: 06/22/08
Equipment #: TC111307-(001 - 017)
Description: CCC Chamber Thermocouples
Manufacturer: Samtec
Model:
Serial #: TC111307-(001 - 017)
Accuracy: +/- 1 Deg.
… Last Cal: 11/30/2007, Next Cal: 11/30/2008
… Last Cal: , Next Cal:
Equipment #: Null
Description:
Manufacturer:
Model:
Serial #:
Accuracy:
… Last Cal: , Next Cal:
Page 8 of 8