BR42KB105M GE Sensing, BR42KB105M Datasheet - Page 2

• Manufacturer Part Number: BR42KB105M
• Description: THERMISTOR NTC BEAD 1MEG OHM 20%
• Manufacturer: GE Sensing
• Series: BR42Kr

Specifications of BR42KB105M

• Resistance In Ohms @ 25°c: 1M
• Resistance Tolerance: ±20%
• Operating Temperature: -80°C ~ 300°C
• Lead Length: 0.31" (7.90mm)
• Mounting Type: Through Hole
• Package / Case: Bead, Glass
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• B Value Tolerance: -
• B0/50: -
• B25/50: -
• B25/75: -
• B25/85: -
• B25/100: -
• Power - Max: -
• Other names: 235-1043

GE
Sensing
Type BR Series
Specifications
Type BR11/14/16/23
Thermal and Electrical Properties
The following lists the thermal and electrical properties
for all small ruggedized thermistors. All definitions and
test methods per MIL-PRF-23648.
Body Dimensions
BR11
• Nominal diameter: 0.011 in (0.28 mm)
• Maximum diameter: 0.012 in (0.30 mm)
• Maximum length: 0.0242 in (0.610 mm)
BR14
• Nominal diameter: 0.014 in (0.36 mm)
• Maximum diameter: 0.016 in (0.41 mm)
• Maximum length: 0.032 in (0.81 mm)
BR16
• Nominal diameter: 0.016 in (0.41 mm)
• Maximum diameter: 0.017 in (0.43 mm)
• Maximum length: 0.034 in (0.86 mm)
BR23
• Nominal diameter: 0.023 in (0.58 mm)
• Maximum diameter: 0.025 in (0.63 mm)
• Maximum length: 0.056 in (1.46 mm)
Lead-Wires
BR11
• Nominal diameter: 0.0007 in (0.02 mm)
• Maximum lead length: 0.312 in (7.9 mm)
• Lead material: platinum alloy
• Available cuts: “K” adjacent or “P” opposite
BR14
• Nominal diameter: 0.0011 in (0.03 mm)
• Maximum lead length: 0.312 in (7.9 mm)
• Lead material: platinum alloy
• Available cuts: “K” adjacent or “P” opposite
BR16
• Nominal diameter: 0.0011 in (0.03 mm)
• Maximum lead length: 0.312 in (7.9 mm)
• Lead material: platinum alloy
• Available cuts: “K” adjacent or “P” opposite
BR23
• Nominal diameter: 0.002 in (0.05 mm)
• Maximum lead length: 0.312 in (8 mm)
• Lead material: platinum alloy
• Available cuts: “K” adjacent or “P” opposite
Material System
Table A
Code
Letter Curve
E
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
D
D
Thermal Time Constant
BR11
• Still air at 77°F (25°C): 0.8 second
• Plunge into water: 12 msec
BR14
• Still air at 77°F (25°C): 1 second
• Plunge into water: 14 msec
BR16
• Still air at 77°F (25°C): 1.2 second
• Plunge into water: 16 msec
BR23
• Still air at 77°F (25°C): 1.7 second
• Plunge into water: 40 msec
Dissipation Constant
BR11
• Still air at 77°F (25°C): 0.065 mW/°C
• Still water at 77°F (25°C): 0.33 mW/°C
BR14
• Still air at 77°F (25°C): 0.10 mW/°C
• Still water at 77°F (25°C): 0.50 mW/°C
R vs T
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
0.312 in (7.9 mm)
25/125
Ratio
5.0
11.8
12.5
14
16.9
19.8
22.1
22.7
29.4
30.8
32.3
35.7
38.1
45
48.1
56.5
75.6
81
minimum
diameter
Nominal
BR11
_
1 to 1.5 kS
1.5 to 3.6 kS
3.6 to 7.5 kS
7.5 to 15 kS
15 to 51 kS
_
51 to 150 kS
150 to 270 kS 75 to 130 kS
270 to 470 kS 130 to 240 kS 130 to 240 kS 130 to 240 kS
470 to 750 kS 240 to 360 kS 240 to 360 kS 240 to 360 kS
750 to 1.6 MS
1.6 to 2.7 MS
2.7 to 6.8 MS
6.8 to 10 MS
_
_
_
Type BR Series dimensions
Nominal Resistance Range at 77°F (25°C)
0.312 in (7.9 mm)
0.312 in (7.9 mm)
minimum
minimum
BR14
_
300 to 680 S
680 to 1.6 S
1.6 to 3.6 kS
3.6 to 6.8 kS
6.8 to 27 kS
_
27 to 750 kS
360 to 820 kS 360 to 820 kS 360 to 820 kS
820 to 1.3 MS 820 to 1.3 MS 820 to 1.3 MS
1.3 to 3.3 MS
3.3 to 6.8 MS
6.8 to 10 MS
_
_
Nominal diameter
BR16
_
300 to 680 S
680 to 1.6 S
1.6 to 3.6 kS
3.6 to 6.8 kS
6.8 to 27 kS
_
27 to 75 kS
75 to 130 kS
1.3 to 3.3 MS
3.3 to 6.8 MS
6.8 to 10 MS
_
_
Opposite leads with
Adjacent leads with
stub ends glass
stub ends glass
coated “K”
coated “P”
BR23
_
300 to 680 S
680 to 1.6 S
1.6 to 3.6 kS
3.6 to 6.8 kS
6.8 to 27 kS
_
27 to 75 kS
75 to 130 kS
1.3 to 3.3 MS
3.3 to 6.8 MS
6.8 to 10 MS
_
_