TeleLink Fuse
TeleLink Fuse
The TeleLink Surface Mount (SM) surge resistant fuse offers circuit protection without
requiring a series resistor. When used in conjunction with the SIDACtor Transient Voltage
Suppressor (TVS), the TeleLink SM fuse and the SIDACtor TVS provide a complete
regulatory-compliant solution for standards such as GR 1089, TIA-968 (formerly known as
FCC Part 68), UL 60950, and ITU K.20 and K.21. No series resistor is required for the
F1250T and F1251T to comply with these standards.
Contact factory for enhanced K.20 and K.21 details.
Surge Ratings
IPP
IPP
IPP
IPP
2x10 µs
Amps
10x160 µs
Amps
10x560 µs
Amps
10x1000 µs
Amps
TeleLink SM Fuse
F0500T
F1250T
F1251T
not rated
500
500
75
160
160
45
115
115
35
100
100
Interrupting Values
I2t Measured
Interrupting Rating
TeleLink SM
Voltage
Rating
250 V
250 V
250 V
Current
Rating
500 mA
1.25 A
2 A
at DC Rated
Voltage
Fuse
Voltage, Current
600 V, 40 A
600 V, 60 A *
600 V, 60 A *
MIN
1 ms
1 ms
1 ms
TYP
MAX
60 ms
60 ms
60 ms
F0500T
F1250T
F1251T
1.3 A2s
22.2 A2s
30 A2s
2 ms
2 ms
2 ms
* Interrupt test characterized at 50° to 70° phase angle. Phase angles approximating 90° may result in damage to the body of the fuse.
Notes:
•
The TeleLink SM fuse is designed to carry 100% of its rated current for four hours and 250% of its rated current for one second
minimum and 120 seconds maximum. Typical time is four to 10 seconds. For optimal performance, an operating current of 80% or
less is recommended.
•
I2t is a non-repetitive RMS surge current rating for a period of 16.7 ms.
Resistance Ratings
DC Cold Resistance
Typical Voltage Drop
@ Rated Current
TeleLink SM Fuse
F0500T
MIN
MAX
0.471 V
0.205 V
0.110 V
0.420 ꢁ
0.107 ꢁ
0.050 ꢁ
0.640 ꢁ
0.150 ꢁ
0.100 ꢁ
F1250T
F1251T
Notes:
•
•
•
Typical inductance ꢀ 4 µH up to 500 MHz.
Resistance changes 0.5% for every °C.
Resistance is measured at 10% rated current.
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© 2002 Teccor Electronics
SIDACtor Data Book and Design Guide
®
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