NTE NTE8035 Radial lead thermal cutoff Datasheet

NTE8000 thru NTE8035
Radial Lead Thermal Cutoff
(Thermal Fuse)
Description:
The TCO (Thermal Cut-Off) responds to temperature by interrupting an electrical circuit when the operating and/or environ‐
mental temperature exceeds the thermal rating of the device. NTE's radial lead TCOs accomplish this when the internal
fusible alloy is melted by reaching the temperature of the melting point of the alloy, forming two separate balls at the edges
of the leads by surface tension of the alloy to permanently open the circuit.
Axial-lead TCO devices presently predominate over radial-lead devices. This results, at least in part, from design diffi‐
culties that exist in manufacturing a reliable, inexpensive radial-lead TCO device. However, in many circuit applications
radial-lead devices are preferable since they take up a smaller area on a printed circuit board. Their compact size enables
ease of assembly into the smallest of transformers ensuring total thermal protection
Features
D Maximum Rating: 5 Amps, 250 Volts
D Full 2 3/4” leads to fit all replacement configurations
D All types meet the requirements of Underwriters Laboratories Specifications and CUL
D RoHS Compliant
Characteristics
Functioning
Temperature
Holding
Temperature
Maximum
Temperature
NTE
Type No.
Diag.
No.
°C
°F
°C
°F
°C
°F
8000
729
76
168
53
127
200
392
8005
8010
729
729
86
102
187
216
61
77
142
171
200
200
392
392
8015
729
115
239
89
192
200
392
8020
729
130
266
103
217
200
392
8025
729
136
277
111
232
200
392
8030
8035
729
729
145
150
293
302
118
123
244
253
200
200
392
392
Diagram 729
.106 (2.7)
.260 (6.6)
.276
(7.0)
2.756
(70.0)
.031 (0.8)
Note 1. Temperature sensitive devices. Do not store above +48°C (+120°F).
Note 2. With proper air flow, heat generation below 5 Amps is minimal, above 5 Amps the upper limit on the currentcapac‐
ity will depend on the environment for each specific application.
Note 3. A general rule of thumb for continuous operating temperature for thermal cut-offs is 30°C less than the Maximum
Opening Temperature.
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