Amphenol MA-300TA-302-2252 Biomedical chip thermistor Datasheet

NTC Type MA
Biomedical Chip
Thermistors
Applications
A complete line of standard sub-assemblies is available.
Continuous research and development efforts within
Thermometrics have resulted not only in these field
proven designs, but in the development of our Unitherm
Thermochip Thermistor, designed exclusively for
biomedical applications in the range of 32°F to 122°F
(0°C to 50°C) .
Although low in cost , these highly stable,
precision thermochips provide the reliability, tight
interchangeable tolerances, geometries, and fast
response times that are often required. Thermometrics
employs experienced applications engineers who
welcome inquiries, whether for assistance, or to help
with your design requirements concerning new and
existing applications.
Amphenol
Advanced Sensors
Our Biomedical Chip Thermistor assemblies are
designed for use in applications involving both
intermittent and continuous patient temperature
monitoring. Repeatability and fast response are
essential not only for the intermittent temperature
requirements associated with oral and rectal fever
measurements, but also with the continuous monitoring
often necessary during induced-hypothermia and
general anesthesia, or when employed in the care of
infants and premature babies. Intensive care units
along with recovery rooms have also adopted patient
temperature as part of their vital sign monitoring
procedures. Temperature monitoring for skin surface,
tympanic, esophageal, foley catheters and biofeedback
applications has also improved due to the high stability
and tight interchangeable tolerances designed into
each Thermometrics’ Biomedical assembly.
NTC Type MA Specifications
MA100
MA300
Designed for use in catheter assemblies, these sensors
are available with nominal resistance values of 2252,
3000, 5000, and 10,000 Ω at 77°F (25°C). Close monitoring of manufacturing processes allow Thermometrics
to maintain tight interchangeability tolerances with
volume production. Typical design parameters are represented in Assembly Type table.
Routine continuous patient temperature monitoring is
now feasible by using the convenience of the patient’s
skin site as an indicator of body temperature. The stainless steel housing used is suitable for both reusable and
disposable applications, while maintaining maximum
patient comfort . Nominal resistance values of 2252,
3000, 5000, and 10,000 Ω at 77°F (25°C) are available.
Refer to Assembly Type table for typical design parameters.
0.030 in (0.76 mm) (10 KΩ only) and 0.050 in(1.27mm)
diameters available with kapton sleeve only.
0.070 in (1.78 mm) diameter normally supplied with
molded plastic tip.
MA200
Intermittent body temperature measurements are
common practice in all phases of patient care. This
assembly is ideally suited for the disposable cover oral
and rectal fever thermometers in use today. It features
rugged construction with tip sensitive shaft assemblies
exhibiting resistance values of 2252, 3000, 5000, and
10,000 Ω at 77°F (25°C). Refer to Assembly Type table
for typical design parameters.
Assembly Type
Assembly
Type
MA100
MA200
MA300
Standard
Diameters
(D)
0.030 in (0.762 mm)
0.050 in (1.27 mm)
0.070 in (1.78 mm)
0.080 in (2.03 mm)
0.156 in (3.96 mm)
0.375 in (9.52 mm)
Body
Length (L)
3/8 in (9.52 mm)
3.75 in (95.25 mm)
N/A
Lead Length
(A)
3/8 in (9.52 mm)
3.75 in (95.25 mm)
N/A
Tolerance
See Tolerance Code
and Temperature
Table
See Tolerance Code
and Temperature
Table
See Tolerance Code
and Temperature
Table
Wire Gauge
20, 30, 32, 38, AWG
30 AWG
30 AWG
Standard
Wire
Insulation
*Heavy Isomid
*Medical Grade PVC
*Polyurethane with
Nylon Overcoat
PTFE
Medical Grade PVC
PTFE
Body
Material
Molded Plastic or
Kapton Sleeve
Lexan Shaft
Aluminum Tip
Stainless Steel
Nominal R Values @ 77°F (25°C)
2252 Ω, 3000 Ω, 5000 Ω, 10,000 Ω
(for all three types)
Thermal Response Time (63% Response)
Series
Still Air
Still Water*
MA100
Catherter Assembly
15 seconds
2.0 seconds
MA200
Oral-Rectal Assembly
35 seconds
0.6 seconds
MA300
Skin Surface Assembly
45 seconds
2.0 seconds
*Response time provided is for assembly plunged from 77°F (25°C) air to 41°F (5°C) water.
NTC Type MA Specifications
Tolerance Code and Temperature Range
Temperature
°F (°C)
2252 Ω
Tolerance Code
Temperature
Range °F (°C)
A
±°F (±°C)
B
±°F (±°C)
Resistance vs Temperature
C
±°F (±°C)
32 to 68 (0 to 20)
0.27 (0.15)
0.36 (0.2)
0.45 (0.25)
68 to 95 (20 to 35)
0.18 (0.1)
0.27 (0.15)
0.36 (0.2)
95 to 102 (35 to 39)
0.09 (0.05)
0.18 (0.1)
0.27 (0.15)
102 to 107.60 (39 to 42)
0.14 (0.075
0.27 (0.15)
0.36 (0.2)
107.60 to 113 (42 to 45)
0.18 (0.1)
0.27 (0.15)
0.36 (0.2)
113 to 122 (45 to 50)
0.27 (0.15)
0.36 (0.2)
0.45 (0.25)
Data
Our biomedical series thermistor chips and
sub-assemblies are designed to be interchangeable
over a 32°F to 122°F (0°C to 50°C) range. Best overall
stability is maintained when exposure and storage
temperatures remain below 158°F (70°C).
32.00 (0)
33.80 (1)
35.60 (2)
37.40 (3)
39.20 (4)
41.00 (5)
42.80 (6)
44.60 (7)
46.40 (8)
48.20 (9)
50.00 (10)
51.80 (11)
53.60 (12)
55.40 (13)
57.20 (14)
59.00 (15)
60.80 (16)
62.60 (17)
64.40 (18)
66.20 (19)
68.00 (20)
69.80 (21)
71.60 (22)
73.40 (23)
75.20 (24)
77.00 (25)
78.80 (26)
80.60 (27)
82.40 (28)
84.20 (29)
86.00 (30)
87.80 (31)
89.60 (32)
91.40 (33)
93.20 (34)
95.00 (35)
96.80 (36)
98.60 (37)
100.40 (38)
102.20 (39)
104.00 (40)
105.80 (41)
107.60 (42)
109.40 (43)
111.20 (44)
113.00 (45)
114.80 (46)
116.60 (47)
118.40 (48)
120.20 (49)
122.00 (50)
7373.00
7005.80
6659.04
6331.49
6021.97
5729.40
5452.74
5191.06
4943.46
4709.11
4487.22
4277.07
4077.97
3889.29
3710.42
3540.80
3379.91
3227.24
3082.34
2944.77
2814.12
2690.01
2572.07
2459.96
2353.37
2252.00
2155.56
2063.79
1976.44
1893.27
1814.07
1738.61
1666.71
1598.18
1532.85
1470.54
1411.11
1354.41
1300.29
1248.63
1199.30
1152.19
1107.19
1064.18
1023.08
983.78
946.21
910.27
875.89
842.99
811.50
3 kΩ
5 kΩ
10 kΩ
103(Y) Ω
9821.93
9332.76
8870.84
8434.49
8022.17
7632.41
7263.87
6915.27
6585.43
6273.23
5977.64
5697.69
5432.47
5181.11
4942.83
4716.88
4502.54
4299.17
4106.14
3922.88
3748.83
3583.49
3426.38
3277.03
3135.04
3000.00
2871.53
2749.28
2632.91
2522.12
2416.61
2316.09
2220.31
2129.02
2041.98
1958.98
1879.81
1804.27
1732.18
1663.36
1597.65
1534.89
1474.94
1417.65
1362.89
1310.55
1260.49
1212.62
1166.81
1122.99
1081.04
16369.9
15554.6
14784.7
14057.5
13370.3
12720.7
12106.4
11525.4
10975.7
10455.4
9962.74
9496.15
9054.11
8635.19
8238.05
7861.46
7504.24
7165.28
6843.57
6538.13
6248.05
5972.48
5710.63
5461.72
5225.07
5000.00
4785.88
4582.13
4388.19
4203.54
4027.68
3860.15
3700.51
3548.36
3403.30
3264.97
3133.02
3007.12
2886.96
2772.27
2662.75
2558.15
2458.23
2362.75
2271.49
2184.24
2100.82
2021.03
1944.69
1871.65
1801.73
32739.8
31109.2
29569.5
28115.0
26740.6
25441.4
24212.9
23050.9
21951.4
20910.8
19925.5
18992.3
18108.2
17270.4
16476.1
15722.9
15008.5
14330.6
13687.1
13076.3
12496.1
11945.0
11421.3
10923.4
10450.1
10000.0
9571.77
9164.26
8776.38
8407.07
8055.35
7720.30
7401.03
7096.72
6806.60
6529.94
6266.03
6014.23
5773.93
5544.53
5325.50
5116.30
4916.46
4725.49
4542.98
4368.49
4201.64
4042.05
3889.38
3743.29
3603.46
29565.8
28224.8
26951.9
25743.3
24595.5
23505.0
22468.7
21483.8
20547.2
19656.6
18809.3
18003.1
17235.7
16505.1
15809.4
15146.7
14515.3
13913.6
13340.0
12793.0
12271.4
11773.8
11299.0
10845.8
10413.1
10000.0
9605.42
9228.45
8868.24
8523.96
8194.82
7880.09
7579.07
7291.10
7015.55
6751.83
6499.37
6257.64
6026.13
5804.36
5591.88
5388.26
5193.09
5005.96
4826.53
4654.43
4489.33
4330.91
4178.88
4032.94
3892.83
NTC Type MA Specifications
Ordering Information
The code number to be ordered may be specif ied as follows:
MA
Code
Standard Assemblies
100FA
Series 100, 0.070 in (1.78 mm) diameter molded plastic tip,
30 gauge PVC insulated ribbon cable.
100FD
Series 100, 0.070 in (1.78 mm) diameter molded plastic tip,
32 gauge bifilar heavy isomid insulation.
100DD
Series 100, 0.050 in (1.27 mm) diameter kapton sleeve with
32 gauge bifilar heavy isomid insulation.
100BF
Series 100, 0.030 in (0.768 mm) diameter kapton sleeve with
38 gauge bifilar heavy isomid insulation.
200LC
Series 200, 0.156 in (3.96 mm) diameter aluminum tip,
30 gauge PTFE leads.
300TA
Series 300, 0.375 in (9.52 mm) diameter stainless steel cup,
30 gauge PVC insulated ribbon cable.
300TB
Series 300, 0.375 in (9.52 mm) diameter stainless steel cup,
30 gauge PTFE insulated ribbon cable.
100GG
Series 100, 0.080 in (2.03 mm) diameter molded plastic tip,
28 gauge kynar insulated twisted pair.
Code
Resistance Cable*
232
2252 Ω
302
3000 Ω
502
5000 Ω
103
10,000 Ω
103 (Y)
10,000 Ω
Code
Tolerance
X
Refer to tolerance code and temperature
range table
MA - ______ - ______ - ______ Typical Model Number
*Refer to resistance vs temperature table on previous page.
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2015 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.
AAS-920-321B-06/2015
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