BR42KB105M GE Sensing, BR42KB105M Datasheet - Page 4

• 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
Thermal Time Constant
BR32
• Still air at 77°F (25°C): 4.5 second
• Plunge into water: 90 msec
BR42
• Still air at 77°F (25°C): 5 second
• Plunge into water: 140 msec
BR55
• Still air at 77°F (25°C): 7 second
• Plunge into water: 200 msec
Dissipation Constant
BR32
• Still air at 77°F (25°C): 0.285 mW/°C
• Still water at 77°F (25°C): 1.4 mW/°C
BR42
• Still air at 77°F (25°C): 0.33 mW/°C
• Still water at 77°F (25°C): 1.653 mW/°C
BR55
• Still air at 77°F (25°C): 0.5 mW/°C
• Plunge into water: 2.50 mW/°C
Power Rating (In Air)
BR32
• Maximum Power Rating: 0.035 W
• 100% Maximum Power To: 302°F (150°C)
• Derated to 0% at: 572°F (300°C)
BR42
• Maximum Power Rating: 0.042 W
• 100% Maximum Power To: 302°F (150°C)
• Derated to 0% at: 572°F (300°C)
BR55
• Maximum Power Rating: 0.050 W
• 100% Maximum Power To: 302°F (150°C)
• Derated to 0% at: 572°F (300°C)
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920-308A
All specifications are subject to change for product improvement without notice.
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Options
• Non-standard resistance tolerances
• Non-standard resistance values
• Specify reference temperature(s) if it is not 77°F (25°C)
• Mounting in special housings or enclosures
• Longer continuous leads
• Welded or soldered extension leads; specify lead
• Solderable or weldable/solderable leads
• Leads can be pre-tinned or treated for improved
• Calibration
• Interchangeable pairs or sets, R-vs-T curve matching;
• Special aging and conditioning for high reliability
Ordering Information
The code number to be ordered may be specified as follows:
Code
BR
BR - ____ - ____ - ____ - ____ - ____
Special tolerances are available upon request. Consult factory for special resistance tolerances,
non-standard resistances and/or non-standard temperatures.
*The zero-power resistance at 77°F (25°C), expressed in Ω , is identified by a three digit code
number. The first two digits represent significant figures, and the last digit specifies the number of
zeros to follow. Example: 10k Ω = “103”. The standard resistance values are from the
24-Value series decade as specified in Military Standard MS90178.
1.0 / 1.1 / 1.2 / 1.3 / 1.5 / 1.6 / 1.8 / 2.0 / 2.2 / 2.4 / 2.7 / 3.0
3.3 / 3.6 / 3.9 / 4.3 / 4.7 / 5.1 / 5.6 / 6.2 / 6.8 / 7.5 / 8.2 / 9.1
material, diameter, length, and insulation, if any.
soldering
specify temperature range(s) and tolerance(s)
applications
Type
Ruggedized bead structure
Code
11
14
16
23
32
42
55
Diameter
11 mils
14 mils
16 mils
23 mils
32 mils
42 mils
55 mils
Code
K
P
_
specify temperature(s)
Lead Configuration
Adjacent leads with stub ends glass coated
Opposite leads
Code
X
Material System Code
See table A or table B for code number
Code
X
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Power
Zero-power resistance as 77°F (25°C)
(see note 2 for code number)
Code
F
G
J
K
L
M
N
P
Q
R
S
Typical model number
Tolerance*
1
2
5
10
15
20
25
30
40
50
Non-standard
(consult factory)