Technical Data 4344
Effective May 2017
Supersedes June 2008
Product features
1025TD
Time-delay surface mount fuse
•Time-delay surface mount fuse
•Satisfies the EIA/IS-722 Standard
•Solder immersion compatible
Agency information
Soldering method
• UL Recognition Guide & File numbers: JDYX2 &
E19180 (250mA - 5A)
• CSA Component Acceptance: File # 053787 C000,
Class # 1422 30
Environmental data
•Life test: MIL-STD-202, Method 108A, Test
Condition D
•Load humidity: MIL-STD-202, Method 103B
•Moisture resistance: MIL-STD-202, Method 106E
•Terminal strength: MIL-STD-202, Method 211A
•Thermal shock: MIL-STD-202, Method 107D, air-
to-air
•Case resistance: EIA/IS-722
•Resistance to dissolution of metallization: ANSI
J-STD-002, Test D
•Mechanical shock: MIL-STD-202, Method 213B
with exceptions per EIA/IS-722 Standard
•High frequency vibration: MIL-STD-202, Method
204D, Test Condition D
•Resistance to solvents: MIL-STD-202, Method
215A
•Wave immersion: 260°C, 10 Sec. max.
•Infrared reflow: 260°C, 30 Sec. max.
Electrical Characteristics
% of Amp Rating Opening Time
100% 4 Hours Minimum
200% 1 Second Minimum
200% 60 Seconds Maximum
250% * 10 Seconds Maximum
* If fuse does not open @ 200% in 60 seconds, raise current to 250%
and the fuse must open in 10 seconds maximum.
Ordering
• Specify packaging and product code (i.e.,
TR2/1025TD250-R)
s
Current Voltage Interrupting DC Cold
Resistance** (Ω) Typical Typical
Product Code Rating Rating Rating* Melting Voltage
Amps AC DC 250Vac 125Vdc Typical I
2
t† Drop‡
1025TD250-R 250mA 250 125 50A 50A 4.200 0.128 1900 mV
1025TD500-R 500mA 250 125 50A 50A 0.5500 1.47 455 mV
1025TD750-R 750mA 250 125 50A 50A 0.317 0.93 400 mV
1025TD1-R 1250 125 50A 50A 0.2030 9.91 387 mV
1025TD1.5-R 1.5 250 125 50A 50A 0.1025 11.79 310 mV
1025TD2-R 2250 125 50A 50A 0.0680 17.27 250 mV
1025TD2.5-R 2.5 250 125 50A 50A 0.0420 16.51 201 mV
1025TD3-R 3250 125 50A 50A 0.0330 42.74 184 mV
1025TD3.5-R 3.5 250 125 50A 50A 0.0270 43.33 180 mV
1025TD4-R 4250 125 50A 50A 0.0220 66.96 152 mV
1025TD5-R 5250 125 50A 50A 0.0160 88.38 145 mV
* AC Interrupting Rating (Measured at designated voltage, 100% power factor random closing); DC Interrupting Rating (Measured at designated voltage, time
constant of the calibrated circuit is less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at ≤10% of rated current)
† Typical Melting I
2
t (Measured with a battery bank at rated DC voltage, 10x-rated current, time constant of calibrated circuit less than 50 microseconds
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
• Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at
elevated ambient temperatures.
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/electronics
© 2017 Eaton
All Rights Reserved
Printed in USA
Publication No. 4344 BU-SB08288
May 2017
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written
approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly
used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
1025TD
Time-delay surface mount fuse
Technical Data 4344
Effective May 2017
Time-Current Curve
3.30
(0.130)
4.38
(0.172)
6.79
(0.267)
Recommended Pad Layout – mm (in)
Dimensions – mm (in)
Drawing Not to Scale
Packaging Code
Packaging Code PrexDescription
TR2 2,500 fuses on 24mm tape-and-reel on 13 inch (330mm) reel per EIAStandard 481
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Eaton:
TR2/1025TD3A TR2/1025TD1.5-R TR2/1025TD750-R TR2/1025TD1-R TR2/1025TD2A TR2/1025TD750MA
TR2/1025TD4-R TR2/1025TD3.5A TR2/1025TD3.5-R TR2/1025TD5-R TR2/1025TD1.5A TR2/1025TD5A
TR2/1025TD500-R TR2/1025TD4A TR2/1025TD500MA TR2/1025TD250MA TR2/1025TD2.5A TR2/1025TD250-R
TR2/1025TD2.5-R TR2/1025TD3-R TR2/1025TD2-R TR2-1025TD1A
