P1/4
Posistor® For Overheat Sensing
1. Part Numbering
(Part Number)
PT
FM
04
BH
471
Q
2N34
BS
Product ID Series Dimensions Temperature Characteristics Resistance Resistance Tolerance Individual Specifications Packaging
2. Ratings
Part Number
PTFM04BH471Q2N34BS
PTFM04BG471Q2N34BS
PTFM04BF471Q2N34BS
PTFM04BE471Q2N34BS
PTFM04BD471Q2N34BS
PTFM04BC471Q2N34BS
PTFM04BB471Q2N34BS
PTFM04BH222Q2N34BS
PTFM04BG222Q2N34BS
PTFM04BF222Q2N34BS
PTFM04BE222Q2N34BS
PTFM04BD222Q2N34BS
PTFM04BC222Q2N34BS
PTFM04BB222Q2N34BS
Temp.
Char.
(C.P.)
BH
BG
BF
BE
BD
BC
BB
BH
BG
BF
BE
BD
BC
BB
Resistance Value
25°C
100ohm
max.
330ohm
max.
※ TS
470ohm min./60°C
470ohm min./70°C
470ohm min./80°C
470ohm min./90°C
470ohm min./100°C
470ohm min./110°C
470ohm min./120°C
2.2kohm min./60°C
2.2kohm min./70°C
2.2kohm min./80°C
2.2kohm min./90°C
2.2kohm min./100°C
2.2kohm min./110°C
2.2kohm min./120°C
TS-10°C
330ohm max./50°C
330ohm max./60°C
330ohm max./70°C
330ohm max./80°C
330ohm max./90°C
330ohm max./100°C
330ohm max./110°C
1.5kohm max./50°C
1.5kohm max./60°C
1.5kohm max./70°C
1.5kohm max./80°C
1.5kohm max./90°C
1.5kohm max./100°C
1.5kohm max./110°C
Max.
Voltage
Max.
Current
16V DC.
0.1A
16V DC.
0.1A
※ TS = Sensing Temperature
• External dielectric withstand voltage between metallic terminal and lead wire. : 500 VDC / 5±1 sec.
3. Dimensions (mm)
3.0±0.3
7.5±0.4
Dia 3.7±0.3
0.5±0.05
13.2±0.5
9.45±0.5
3.2±0.4
6.4±0.4
3.5±1.5
Coating extension
:2.5mm max
39±5
Dia0.5±0.05
4. Quantity (Standard Quantity)
200pcs./unit bag.
Murata Manufacturing Co.,Ltd.
This information may be changed without a previous notice.
JWA01BK-E1019I
P2/4
BH
1000
BG
BF
BE BD
BC BB
Resistance - Temperature Characteristic
Resistance Change (R/R25)
100
10
1
0.1
-10
0
10
20
30
40
50
60
70
80
Temperature (deg C)
This information may be changed without a previous notice.
90
100 110 120 130 140
BH-007'
P3/4
Notice for use
Caution
1. This product is designed for application which is used under ordinary environment.(room temperature,
normal humidity, normal pressure) Do not expose this to the following environments, because all these
factor can deteriorate the characteristic of this and can cause failure or burn out.
(1)Corrosive gas or deoxidizing gas(Cl2, H2S, NH3, SOx, NOx etc.)
(2)Volatile, flammable gas
(3)Dusty place
(4)Place in a vacuum, reducing or putting pressure
(5)Place in splashed water, or high humidity and dewing place
(6)Salt water, oil, chemical liquid and solvent
(7)Vibratile place
(8)Other place equivalent to the above
2. Limitation of Applications
Please contact us before using our products for the under-mentioned applications requiring especially high
reliability in order to prevent defects which might directly cause damage to other party’s life body or
property (listed below).
(1)Aircraft equipment
(2)Aerospace equipment
(3)Undersea equipment
(4)Power plant control equipment
(5)Medical equipment
(6)Transportation equipment (automobiles, trains, ships, etc.)
(7)Traffic signal equipment
(8)Disaster prevention / Crime prevention equipment
(9)Data-processing equipment
(10) Applications of similar complexity or with reliability requirements comparable to the applications
listed in the above.
3. Be sure to provide an appropriate fail-safe function on your product to prevent a second damage that may
be caused by the abnormal function or the failure of our product.
Notice
1. Do not apply abnormal voltage/current exceeding the specified maximum value. Because they may
deteriorate or destroy PTC element.
2. Use this product within the specified temperature. A higher temperature may deteriorate the characteristic or
material.
3. In case of mounting this product with screw , please do not apply an excessive tensile stress(9.8N)
between resin case and lead.
4. Do not apply an excessive force(9.8N) to the lead. Otherwise, it may cause break off the junction between
lead and element, may crack element or element may comes off resin case. Therefore, hold of element
side lead wire is recommended when lead wire is bent or cut.
5. This product does not have waterproof construction. A splashed water may cause failure
mode such as deterioration of characteristic or current leak.
So, Do NOT apply cleaning to immerse it into water or any solvent.
6. If you coat this product by resin, please evaluate the qualityl of this product before you use it.
The stress of fource which is caused by coating materials or heat cycles may cause failure
mode such as deterioration of characteristic or current leak in worst case.
7. This product is using the solder of 221+/-5 ℃ of melting points, in order to connect
ceramics with a lead wire. Do not heat up a terminal area of this product over 180 ℃.
8. The ceramic element of this product is fragile, and care must be taken not to load a excessive press-force
or not to give a shock at handling. Such forces may cause cracking or chipping.
MURARA MANUFACTURING CO., LTD.
This information may be changed without a previous notice.
CE-004AJ
P4/4
9. When the lead of this product is soldered, pay attention as follows to avoid the decline of element
characteristic or break down the element.
(1) Use Rosin type flux or non-activated flux(the content of chlorine shall be less than 0.2%)
(2) Do not dip the body into flux. (Flux shall be coated to lead wire only for soldering.)
(3) The pre-heat up should be conducted without melting the soldering of this product.
10. Do not apply tensile force or separating force to lead wire at soldering.
11. Do not touch the resin case by soldering iron. The soldering point shall be min. 5 mm away from the
root of lead wire. Please solder the following conditions.
・Iron Tip Temperature
: 360 degree C max.
・Soldering Time
: 4 seconds max. / 1 terminal
・Number of Soldering
: 1
12. To keep solderability of product from declining, following storage condition is recommended.
(1) Storage condition : Temperature : -10 to +40°C
Humidity : less than 75%RH(not dewing condition)
(2) Term: Please use this product within 6 months after shipment by first-in and first-out stocking system.
(3) Handling after seal open: After unpacking of the minimum package, reseal it promptly or store it inside
a sealed container with a drying agent.
(4) Place: Do not store this product in corrosive gas(SOx, Cl etc) or under sun-light.
13. This product is to be mounted to the part where heat should be detected as shown below.
Screw
Screw
POSISTOR
Transistor
Transistor
Radiative Plate
Radiative Plate
POSISTOR
As it happen that detected heat will change after this product would be mounted,
please make sure that your product has been evaluated confirmed after this product will be mounted.
14. The lag terminal plate is inserted into resin case. Incase of mounting this product with screw, please do
not give strength to resin case.
15. Please do not use adhesive to mounting.
MURARA MANUFACTURING CO., LTD.
This information may be changed without a previous notice.
CE-004AJ
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