PTC THERMISTORS:
TYPE PTU
OVER-CURRENT PROTECTION, UL RECOGNIZED
DESCRIPTION:
UL recognized PTC disc thermistor for over-current
and short-circuit protection.
FEATURES:
•
UL recognized resettable fuse - U.L. File
E82830 - U.L. Category XGPU2 (Thermistor
type devices)
•
Low cost solid state fuse
•
Available in a broad range of resistances,
transition temperatures and voltage ratings
•
Exhibits large positive increases in resistance
with temperature
•
Wide range of trip and non-trip currents; from
30mA to 2.3 amps
•
Resistance/temperature characteristic is
infinitely repeatable and has no hysteresis
associated with its action
•
Proven quality and reliability over many years of
manufacture
•
Standard options include protective coating and
tape and reeled to EIA RS-468A
DIMENSIONS:
Operating
R25°C
Voltage
(±20%)
Minimum
Maximum
Switch Current No-Switch Current
Type
RL6505-.5-110-5-PTU
RL5506-1.0-110-12-PTU
RL3506-2.5-110-12-PTU
RL2506-5.0-110-12-PTU
RL2006-10-110-12-PTU
RL9905-0.2-120-12-PTU
RL6505-0.5-120-12-PTU
RL4805-1.0-120-12-PTU
RL3005-2.5-120-12-PTU
RL2105-5.0-120-12-PTU
RL1505-10-120-12-PTU
RL7008-1.5-110-25-PTU
RL5008-3.0-110-25-PTU
RL7006-0.5-120-25-PTU
RL5006-1.0-120-25-PTU
RL4006-1.5-120-25-PTU
RL2806-3.0-120-25-PTU
RL2206-5.0-120-25-PTU
U.L. Style No.
L/005-NC-0001/B
L/012-LC-0001/B
L/012-HC-0003/B
L/012-FC-0005/B
L/012-EC-0010/B
M/012-UC-0001/B
M/012-NC-0001/B
M/012-KC-0001/B
M/012-GC-0003/B
M/012-EC-0005/B
M/012-DC-0010/B
L/025-OD-0002/B
L/025-KD-0003/B
M/025-OC-0001/B
M/025-KC-0001/B
M/025-IC-0002/B
M/025-GC-0003/B
M/025-EC-0005/B
0°C
25°C
25°C
55°C
“H”
Joules/°C
.08
0.7
0.3
0.15
0.11
1.9
0.8
0.4
0.2
0.08
0.9
1.5
0.8
0.8
0.4
0.3
0.2
1.1
d.c.
mW/°C
18
14
9
8
6
29.9
18.0
11.4
7.0
4.4
2.9
18
14
18.6
12.2
9.3
6.2
4.6
A (max)
in.
0.70
0.60
0.40
0.30
0.25
1.10
0.71
0.54
0.36
0.27
0.21
0.75
0.55
0.75
0.55
0.45
0.33
0.28
17.78
15.24
10.16
7.62
6.35
27.94
18.03
13.72
9.14
6.86
5.33
19.05
13.97
19.05
13.97
11.43
8.38
7.11
B (max)
0.16
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.18
0.18
0.16
0.16
0.16
0.16
0.16
mm. in.
C (ref.)
AWG
mm. in. mm.
No.
4.06
3.81
3.81
3.81
3.81
3.81
3.81
3.81
3.81
3.81
3.81
4.57
4.57
4.06
4.06
4.06
4.06
4.06
0.33
0.33
0.25
0.15
0.15
0.33
0.33
0.25
0.15
0.15
0.15
0.33
0.33
0.33
0.33
0.25
0.15
0.15
8.38
8.38
6.35
3.81
3.81
8.38
8.38
6.35
3.81
3.81
3.81
8.38
8.38
8.38
8.38
6.35
3.81
3.81
20
22
24
24
24
22
24
24
24
24
24
20
22
22
22
24
24
24
5
12
12
12
12
12
12
12
12
12
12
25
25
25
25
25
25
25
0.5
1.0
2.5
5.0
10.0
0.2
0.5
1.0
2.5
5.0
10.0
1.5
3.0
0.5
1.0
1.5
3.0
5.0
2.32
1.45
0.73
0.49
0.30
4.93
2.42
1.36
0.67
0.38
0.22
1.34
0.84
2.46
1.41
1.00
0.58
0.39
2.07
1.29
0.65
0.44
0.27
4.43
2.17
1.22
0.61
0.34
0.20
1.19
0.74
2.21
1.27
0.90
0.52
0.35
1.40
0.87
0.44
0.29
0.18
3.06
1.50
0.84
0.42
0.23
0.13
0.81
0.50
1.52
0.87
0.62
0.36
0.24
1.02
0.64
0.32
0.22
0.13
2.37
1.16
0.65
0.32
0.18
0.10
0.59
0.37
1.18
0.68
0.48
0.28
0.19
BOWTHORPE THERMOMETRICS
Crown Industrial Estate, Priorswood Road
Taunton, Somerset TA2 8QY UK
Tel +44 (0) 1823 335200
Fax +44 (0) 1823 332637
THERMOMETRICS, INC.
808 US Highway 1
Edison, New Jersey 08817-4695 USA
Tel +1 (732) 287 2870
Fax +1 (732) 287 8847
KEYSTONE THERMOMETRICS CORPORATION
967 Windfall Road
St. Marys, Pennsylvania 15857-3397 USA
Tel +1 (814) 834 9140
Fax +1 (814) 781 7969
PTC THERMISTORS:
TYPE PTU
OVER-CURRENT PROTECTION, UL RECOGNIZED
Operating
R25°C
Voltage
(±20%)
Minimum
Maximum
Switch Current No-Switch Current
Type
RL5508-5.0-110-50-PTU
RL4008-10-110-50-PTU
RL3008-20-110-50-PTU
RL2008-50-110-50-PTU
RL7506-1.0-120-50-PTU
RL5006-2.5-120-50-PTU
RL3506-5.0-120-50-PTU
RL2506-10-120-50-PTU
RL2006-25-120-50-PTU
RL1606-50-120-50-PTU
RL7512-10-110-120-PTU
RL5512-20-110-120-PTU
RL3512-50-110-120-PTU
RL2512-100-110-120-PTU
RL9910-2.5-120-120-PTU
RL7510-5.0-120-120-PTU
RL5010-10-120-120-PTU
RL3510-20-120-120-PTU
RL2310-50-120-120-PTU
RL2006-100-120-120-PTU
RL6320-50-110-240-PTU
RL4520-100-110-240-PTU
RL3020-200-110-240-PTU
RL9912-5-120-240-PTU
RL7512-10-120-240-PTU
RL5512-20-120-240-PTU
RL3512-50-120-240-PTU
RL2412-100-120-240-PTU
RL2012-200-120-240-PTU
RL7024-25-120-480-PTU
RL4820-50-120-480-PTU
RL4517-100-120-480-PTU
RL4517-200-120-480-PTU
U.L. Style No.
L/050-LD-0005/B
L/050-ID-0010/B
L/050-GD-0020/B
L/050-ED-0050/B
M/050-PC-0001/B
M/050-KC-0003/B
M/050-HC-0005/B
M/050-FC-0010/B
M/050-EC-0025/B
M/050-DC-0050/B
L/120-PF-0010/B
L/120-LF-0020/B
L/120-HF-0050/B
L/120-FF-0100/B
M/120-UE-0003/B
M/120-PE-0005/B
M/120-KE-0010/B
M/120-HE-0020/B
M/120-FE-0050/B
M/120-EC-0100/B
L/240-NH-0050/B
L/240-JH-0100/B
L/240-GH-0200/B
M/240-UF-0005/B
M/240-PF-0010/B
M/240-LF-0020/B
M/240-HF-0050/B
M/240-FF-0100/B
M/240-EF-0200/B
M/480-OI-0025/B
M/480-KH-0050/B
M/480-JG-0100/B
M/480-JG-0200/B
0°C
25°C
25°C
55°C
“H”
Joules/°C
1.0
0.5
0.3
0.1
1.5
0.7
0.3
0.2
0.1
0.07
2.7
1.4
0.6
0.3
4.6
2.2
1.2
0.6
0.2
0.1
3.1
1.6
0.7
5.7
3.2
1.8
0.7
0.3
0.2
3.7
1.8
1.8
1.8
d.c.
mW/°C
14
10
8
7
21.0
12.7
8.1
6.0
4.4
3.4
20
14
9
8
32.6
20.0
14.2
9.2
6.0
4.3
18
13
8
33.7
23.6
16.8
9.9
7.0
5.7
23.4
15.4
15.4
15.4
A (max)
in.
B (max)
mm. in.
C (ref.)
AWG
mm. in. mm.
No.
4.32
4.32
4.06
4.06
4.06
4.06
4.06
4.06
4.06
4.06
5.84
5.84
5.59
5.59
5.08
5.08
5.08
5.08
5.08
4.06
8.13
7.62
7.37
5.59
5.59
5.59
5.59
5.59
5.59
8.64
7.11
6.10
6.10
0.33
0.25
0.25
0.15
0.33
0.33
0.25
0.15
0.15
0.10
0.33
0.33
0.25
0.15
0.33
0.33
0.33
0.25
0.15
0.15
0.33
0.33
0.25
0.33
0.33
0.33
0.25
0.15
0.15
0.33
0.33
0.25
0.25
8.38
6.35
6.35
3.81
8.38
8.38
6.35
3.81
3.81
2.54
8.38
8.38
6.35
3.81
8.38
8.38
8.38
6.35
3.81
3.81
8.38
8.38
6.35
8.38
8.38
8.38
6.35
3.81
3.81
8.38
8.38
6.35
6.35
22
24
24
24
22
22
24
24
24
24
20
20
22
22
20
22
24
24
24
24
18
20
22
20
22
22
22
24
24
20
20
22
22
50
50
50
50
50
50
50
50
50
50
120
120
120
120
120
120
120
120
120
120
240
240
240
240
240
240
240
240
240
480
480
480
480
5.0
10.0
20.0
50.0
1.0
2.5
5.0
10.0
25.0
50.0
10.0
20.0
50.0
100.0
2.5
5.0
10.0
20.0
50.0
100.0
50.0
100.0
200.0
5.0
10.0
20.0
50.0
100.0
200.0
25.0
50.0
100.0
200.0
0.65
0.39
0.24
0.14
1.85
0.91
0.51
0.31
0.17
0.11
0.55
0.32
0.16
0.11
1.46
0.81
0.48
0.27
0.14
0.09
0.23
0.14
0.08
1.05
0.62
0.37
0.18
0.11
0.07
0.39
0.22
0.16
0.11
0.58
0.34
0.22
0.13
1.66
0.82
0.46
0.28
0.15
0.09
0.49
0.29
0.15
0.10
1.31
0.72
0.43
0.25
0.13
0.08
0.21
0.12
0.07
0.94
0.56
0.33
0.16
0.10
0.06
0.35
0.20
0.14
0.10
0.39
0.23
0.15
0.09
1.15
0.56
0.32
0.19
0.10
0.07
0.33
0.19
0.10
0.07
0.90
0.50
0.30
0.17
0.09
0.05
0.14
0.08
0.05
0.65
0.38
0.23
0.11
0.07
0.04
0.24
0.14
0.10
0.07
0.29
0.17
0.11
0.06
0.89
0.44
0.25
0.15
0.08
0.05
0.24
0.14
0.07
0.05
0.70
0.39
0.23
0.13
0.07
0.04
0.10
0.06
0.03
0.50
0.30
0.18
0.09
0.05
0.03
0.19
0.11
0.08
0.05
0.60 15.24 0.17
0.45 11.43 0.17
0.35 8.89 0.16
0.25 6.35 0.16
0.80 20.32 0.16
0.55 13.97 0.16
0.40 10.16 0.16
0.30 7.62 0.16
0.25 6.35 0.16
0.21 5.33 0.16
0.80 20.32 0.23
0.60 15.24 0.23
0.40 10.16 0.22
0.30 7.62 0.22
1.04 26.42 0.20
0.80 20.32 0.20
0.55 13.97 0.20
0.40 10.16 0.20
0.28 7.11 0.20
0.25 6.35 0.16
0.70 17.78 0.32
0.50 12.70 0.30
0.35 8.89 0.29
1.04 26.42 0.22
0.80 20.32 0.22
0.60 15.24 0.22
0.40 10.16 0.22
0.29 7.37 0.22
0.25 6.35 0.22
0.75 19.05 0.34
0.53 13.46 0.28
0.51 12.95 0.24
0.51 12.95 0.24
OPTIONS:
•
Protective coating, replace “PTU” suffix with “PUC”
•
Tape and reel, replace “PTU” suffix with “PUR”
•
Coated and T&R, replace “PTU” suffix with “PUCR”
•
Other resistances
•
Other tolerances, other transition temperatures
•
Alternate size and configurations
•
Other voltage ratings
BOWTHORPE THERMOMETRICS
Crown Industrial Estate, Priorswood Road
Taunton, Somerset TA2 8QY UK
Tel +44 (0) 1823 335200
Fax +44 (0) 1823 332637
THERMOMETRICS, INC.
808 US Highway 1
Edison, New Jersey 08817-4695 USA
Tel +1 (732) 287 2870
Fax +1 (732) 287 8847
KEYSTONE THERMOMETRICS CORPORATION
967 Windfall Road
St. Marys, Pennsylvania 15857-3397 USA
Tel +1 (814) 834 9140
Fax +1 (814) 781 7969
