2-521055-2 TE Connectivity, 2-521055-2 Datasheet - Page 2

• Manufacturer Part Number: 2-521055-2
• Description: TERMINAL, MALE DISCONNECT, 0.25IN, RED
• Manufacturer: TE Connectivity
• Type: Quick Disconnect Terr
• Series: Ultra-Fast Plus FASTONr

Specifications of 2-521055-2

• Tab Size: 5.16mm²
• Wire Gauge: 18-22
• Body Plating: Tin
• Body Material: Brass
• Gender: M
• Insulation: Nylon
• Product Depth (mm): 13.25mm
• Product Length (mm): 21.71mm
• Color: Red
• Connector Type: Male Disconnect
• Insulator Color: Red
• Termination Method: Crimp
• Stud/tab Size: 0.25 X 0.032"
• Wire Size (awg): 22-18
• Contact Material: Brass
• Rohs Compliant: Yes
• Product: Tab Terminals
• Contact Plating: Tin
• Termination Style: Crimp
• Mounting Angle: Straight
• Terminal Type: Tab
• Proprietary Name: Ultra-Fast Plus
• Mating Area Interface Dimensions (mm [in]): 6.35 x 0.81 [.250 x .032]
• Insulation Diameter (mm [in]): 1.52-3.42 [.060-.135]
• Insulation Support: Insulation Support
• Finish: Tin
• Wire/cable Type: Regular Wire
• Mount Angle: Straight
• Wire Range (mm [awg]): 0.30-0.90² [22-18]
• Tab Type: Wire Crimp
• Fully Insulated: Fully Insulated
• Rohs/elv Compliance: RoHS compliant, ELV compliant
• Lead Free Solder Processes: Not relevant for lead free process
• Rohs/elv Compliance History: Always was RoHS compliant
• Packaging Method: Strip
• Lead Free Status / RoHS Status: Compliant

Test Specifications
The following information and accompanying graphs are
taken from Tyco Electronics Product Qualification Testing
of Ultra-Fast FASTON product. Tests were conducted on
representative production samples, and all values shown
are averages of group results. The values shown are typical
results and may vary due to differences in processing,
application and methods of testing.
Current vs. Temperature Rise (16 AWG)
The heat generated by the current passing through
a termination is a primary limit to the load-carrying
capabilities of the application. A low termination resistance
will produce a lower temperature rise as current is applied.
In order to evaluate this characteristic, UL has established
current ratings for each wire size and set a maximum
temperature rise to assure safe operation. For example, 16
AWG stranded wire has a UL 310 maximum temperature
rise of 30°C above ambient temperature at the rated current
of 10 amps. In the testing of the Ultra-Fast FASTON product
applied to 16 AWG wire, the temperature rise was found to
be below 10°C at the rated current. In fact, the temperature
rise did not exceed 30°C until the current was above 20
amps, more than twice the rated current.
Current Cycling vs. Temperature Rise (16 AWG)
Maintaining a safe temperature rise during cyclic
applications of excessive current is the toughest challenge
for the crimp-thru-plastic concept. The ability of the
Ultra-Fast FASTON product line to meet this goal sets
it apart from other preinsulated terminations.
Tyco Electronics’ experience in crimp development results
in a termination that exhibits stable heating characteristics
which are well within the safety requirements of the
industry.
Catalog 82004
Revised 10-07
www.tycoelectronics.com
are metric equivalents.
Dimensions are in inches and
millimeters unless otherwise
specified. Values in brackets
FASTON Terminals (Insulated and Uninsulated)
Ultra-Fast Fully Insulated FASTON Receptacles and Tabs
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
Engagement/Separation
The forces caused by the rolls of FASTON style terminals
determine the contact interface integrity of a mated
receptacle and tab. These forces must be high enough to
prevent oxidation and corrosion from forming inside the
contact area. As these forces are raised to increase the
electrical performance, the engagement and separation
forces for mating the contacts are significantly increased.
For this reason, the Premier Low Insertion Force FASTON
concept of receptacle design has been carried over to the
Ultra-Fast FASTON products. This feature provides
consistent engagement and separation forces while
maintaining a high standard of electrical reliability.
Crimp Tensile
1
Note: Minimum requirements are per Tyco Electronics specifications.
The crimp tensile strength of a wire-to-terminal connection
is important in guarding against such hazards as wire
flexing, vibration and wire strain. However, maximum tensile
strength does not insure maximum electrical performance.
An acceptable compromise between tensile strength and
electrical performance must always be reached, using
recommended crimp heights.
To test a product, it must be subjected to 500 on and off
cycles at twice the rated current for the particular wire size.
The temperature rise is measured on the 24th cycle and
the 500th cycle. The maximum temperature rise is limited
to 85°C above ambient temperature with a maximum of
15°C increase on any sample between the 24th and 500th
cycles. Our testing of 16 AWG wire application indicated a
25.5°C maximum temperature rise up to 500 cycles, with a
maximum increase of 0.8°C from the 24th to the 500th
cycle for one sample in the test group.
UL does not have requirements for wire gauges below 22 AWG.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080-208
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