NTC Thermistors
Type RL20
Uncoated Disc With
Radial Leads
Description
Point-matched disc thermistor with bare lead-wires.
Features
• Low cost solid state sensor
• Resistance tolerances down to ±2%
• Suitable for PCB and probe mountings
• High sensitivity to changes in temperature
• Available in a wide range of material systems
• Suitable for temperature measurement, control and
compensation
• Excellent mechanical strength
• Also available with epoxy coating
• Available on tape and reel to EIA RS-468A for
automatic insertion
• Wide operating temperature range:
-58°F to 302°F (-50°C to 150°C)
Amphenol
Advanced Sensors
Type RL20 Specifications
Type Number
RL2004-16.4-59-M
RL2007-32.8-59-M
RL2003-62.4-73-K
RL2004-93.6-73-K
RL2004-89.1-85-K
RL2006-125-73-K
RL2006-119-85-K
RL2007-156-73-K
RL2008-187-73-K
RL2008-178-85-K
RL2003-289-95-K
RL2005-434-95-K
RL2006-578-95-K
RL2004-582-97-K
RL2006-873-97-K
RL2007-1164-97-K
RL2005-1148-103-K
RL2006-1600-103-K
RL2008-2010-103-K
RL2005-2203-120-K
RL2006-2753-120-K
Type Number
Ro@25°C Material Beta
Ω
Systems 25/85
25
D5.9 3096
50
100
150
150
200
200
250
300
300
500
750
1K
1K
1.5K
2K
2K
2786
3.5K
4K
5K
D5.9
D7.3
D7.3
D8.5
D7.3
D8.5
D7.3
D7.3
D8.5
D9.5
D9.5
D9.5
D9.7A
D9.7A
D9.7A
D10.3
D10.3
D10.3
D12.0
D12.0
3096
3468
3468
3772
3468
3772
3468
3468
3772
3965
3965
3965
3972
3972
3972
4073
4073
4073
4356
4356
δ
τ
in mm (mW/K) (sec.)
.130 3.30
6.5
20
B
.160 4.06
.120 3.05
.130 3.30
.130 3.30
.150 3.81
.150 3.81
.160 4.06
.170 4.32
.170 4.32
.120 3.05
.140 3.56
.150 3.81
.130 3.30
.150 3.81
.160 4.06
.140 3.56
.150 3.81
.170 4.32
.140 3.56
.150 3.81
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
30
20
20
20
20
20
30
30
30
20
20
20
20
20
30
20
20
30
20
20
26 awg tinned copper
B thickness
refer to table
1.5 in (38 mm) min
0.156 in
(4 mm)
0.220 in max
(5.6 mm)
Options
• Other resistances and tolerances at other
temperatures available.
• Resistances tolerance codes: G = 2%
– J = 5%
– K = 10%
– L = 15%
– M = 20%
• Alternative lead lengths, lead materials,
insulations
• The - “K” suffix is the same as the “DI” suffix in
earlier catalogs.
Ro@25°C Material Beta
Ω
Systems 25/85
RL2008-4131-120-K
7.5K
D12.0 4356
RL2004-4429-122-K
RL2012-5506-120-K
RL2005-5536-122-K
RL2007-8304-122-K
RL2010-11K-122-K
RL2005-10.7K-140-K
RL2003-13.2K-150-K
RL2006-13.3K-140-K
RL2007-16K-140-K
RL2004-18.4-150-K
RL2004-21.6K-138-K
RL2005-27K-138-K
RL2006-26.3K-150-K
RL2004-26K-155-K
RL2008-39.6K-150-K
RL2007-40.6K-138-K
RL2007-44.5K-155-K
RL2010-54.1K-138-K
RL2008-52.3K-155-K
8K
10K
10K
15K
20K
20K
25K
25K
30K
35K
40K
50K
50K
50K
70K
75K
85K
100K
100K
D12.2
D12.0
D12.2
D12.2
D12.2
D14.0
D15.0
D14.0
D14.0
D15.0
D13.8
D13.8
D15.0
D15.5
D15.0
D13.8
D15.5
D13.8
D15.5
4365
4356
4365
4365
4365
4615
4728
4615
4615
4720
4561
4561
4720
4783
4220
4561
4783
4561
4783
B
δ
τ
in mm (mW/K) (sec.)
.170 4.32
6.5
30
.130 3.30
.210 5.33
.140 3.56
.160 4.06
.190 4.83
.140 3.56
.120 3.05
.150 3.81
.160 4.06
.130 3.30
.130 3.30
.140 3.56
.150 3.81
.130 3.30
.170 4.32
.160 4.06
.160 4.06
.190 4.83
.170 4.32
6.5
7.2
6.5
6.5
7.0
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
7.0
6.5
20
50
20
30
35
20
20
20
30
20
20
20
20
20
30
30
30
35
30
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
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