Chatham Components: Thermal Fuses and Thermal Cutoffs

TCO Catalog >> NEC/Schott SEFUSE organic pellet and Uchihashi ELCUT eutectic thermal cutoffs

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RoHS Compliant

Ratings

Part
Number

Rated
Functioning
Temperature
T_f (°C)

Cut-off
Temperature
(°C)

T_h
T_c
(°C)

Tm
(°C)

Electrical Rating

Approvals

Ampere
(A)

Voltage
(V)

CSA

VDE

CCC

PSE

441

102

98 ± 2

200

AC 0.5

AC 1

AC 2.5

DC 2.5

AC 250

AC 125

AC 50

DC 50

442

115

112 ± 3

200

1.5

3.5

AC 250

AC 125

AC 50

DC 50

443

130

126 ± 2

111

102

200

AC 1

AC 1.5

AC 3.5

DC 3.5

AC 250

AC 125

AC 50

DC 50

444

133

130 ± 2

114

107

200

AC 1

AC 1.5

AC 3

DC 3

AC 250

AC 125

AC 50

DC 50

448

139

135 ± 3

119

106

200

AC 1

AC 1.5

AC 4

DC 4

AC 250

AC 125

AC 50

DC 50

445

150

145 ± 2

123

119

200

AC 0.5

AC 1

AC 4

DC 4

AC 250

AC 125

AC 50

DC 50

447

187

184 ± 3

162

155

200

AC 1

AC 1.5

AC 4

DC 4

AC 250

AC 125

AC 50

DC 50

UL,C-UL:E50082, CSA: LR40743, VDE: 923000-1171-0004

Cut-off temperature is measured with silicone oil bath of which temperature is increased at the rate of 1° per minute. Detecting current is 0.1A or less.
Th and Tc are for C-UL(CSA) and CCC respectively.

Dimensions

Dimensions (mm)

Lead length

Regular

6 ± 0.5

39 ± 3

69 ± 3

1.65 ± 0.1

2 or below

0.53 ± 0.02

Long

Technical Terms

Rated Functioning Temperature (T_f)
The acceptable tolerance is +0,-10°C

Holding Temperature (C-UL&CSA:T_h, CCC:T_c)
The maximum temperature at which the thermal cutoffs may be maintained.

Maximum Temperature Limit (Tm)
The maximum temperature at which an opened thermal cutoff does not reclose.

Notice: Please read Standard Specification and Instruction Manual for details of use.