Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
1 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev. 1.2 201901
FTP Series
PTC Thermistor “Micro Heater”
(Flat Thin head Insulated Type)
FTP Series
Overview
The FTP series generate heat at specified temperature when voltage is applied and also serve to control
temperature.
The FTP series are mounted PTC ceramics, so high reliability and quick heating up are available.
Also outer size is small, so the FTP series can heat required small part only. And electricity loss can be minimized as
for heating.
In addition to the above, the FTP series can be operated with low voltage battery.
These help the customer downsize heating construction and high performance.
Features
Self-Temperature Control by PTC characteristics.
Low voltage operation
Top surface insulated SMD part
Compact light design
Fastest time heating operation
Small spot heating
Design free heating layout
Applications
Heating Electric Device for Temperature compensation
Removal of dew condensation or freeze
(Camera, Mirror etc.)
Beauty and Health-Care application
(Massager etc.)
Paper dryer for PPC printer
Several Accessory warmer
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
2 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev. 1.2 201901
TABLE OF CONTENT
1. Introduction 1
2. Selection Guide 3
2.1 Part Numbering
3. Specifications 4
3.1 Line up
3.2 Resistance-Temperature Characteristics Typical Curve
3.3 Reliability Tests
4. Fundamental Data 7
4.1 Experimental Setup
4.2 Experiment Data (Temperature rise vs. Time)
4.3 Experiment Data (Summary)
5. Dimension, Land Pattern 11
6. Packing 12
6.1 Taping Specification
6.2 Reeling
7. CAUTION 14
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
3 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev. 1.2 201901
2. Selection Guide
2.1 Part Numbering
PTC Thermistors (POSISTOR®) “Micro Heater” (Flat Thin head Insulated Type)
(Part Number) FT P 18 BC 3R3 Q 03 RT
1. 2. 3. 4. 5. 6 7. 8.
1. Product ID
Product ID
FT Flat Thin head Insulated type
2. Series
Code Series
P PTC Thermistor
3. Dimensions
Code Dimensions
18 1.60 × 0.80mm
4. Temperature Characteristics
Code Temperature Characteristics
BC Curie Point 95 deg.C
5. Resistance
Expressed by three figures. The unit is ().
The first and second figures are significant digits, and the
third figure expresses the number of zeros which follow
the two figures. If there is a decimal point, it is expressed
by the capital letter “R”. In this case, all figures are
significant digits.
Ex.)
Code Resistance
3R3 3.3 ohm
330 33 ohm
6. Resistance Tolerance
Code Sensing Temp. Tolerance
Q +35% / -20%
7. Individual Specifications
Ex.)
Code Individual Specifications
03 Structure, others
8. Packaging
Code Packaging
RT Plastic Taping 4mm Pitch (4000pcs.)
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
4 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
3. Specifications
3.1 Line up
Resistance V alue Curie Temp. Max.
Operating V oltage Operating
Temperature Range
at 25[ ohm ]
(*1)
[ deg.C]
(*2)
[V] [ deg.C ]
FTP18BC2R2Q03RT 2.2ohm +35/-20% T2R25 = 85105 DC 2.0 0+40
FTP18BC3R3Q03RT 3.3ohm +35/-20% T2R25 = 85105 DC 3.0 0+40
FTP18BC4R7Q03RT 4.7ohm +35/-20% T2R25 = 85105 DC 3.6 0+40
FTP18BC180Q03RT 18ohm +35/-20% T2R25 = 85105 DC 6.0 0+40
FTP18BC330Q03RT 33ohm +35/-20% T2R25 = 85105 DC 6.0 0+40
FTP18BC470Q03RT 47ohm +35/-20% T2R25 = 85105 DC 6.0 0+40
FTP18BC680Q03RT 68ohm +35/-20% T2R25 = 85105 DC 6.0 0+40
Part Number
*1 : After applying maximum voltage for 3 min. at 25 deg.C in still air, keeping at 25 deg.C in still air for more
than 24 Hr.
And measure resistance by 4 terminal method with less than 10mA (less than 0.1VDC) of DC voltage.
*2 : After changing ambient temperature in air oven, the resistance is measured by 4 terminal method
with less than 10mA (less than 0.1VDC) of DC voltage.
Curie temperature is specified the temperature when the resistance becomes twice of the resistance at 25
deg.C.
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
5 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
3.2 Resistance-Temperature Characteristics Typical Curve
(deg.C)
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
6 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
3.3 Reliability Tests
Item Criteria Method of test
1 Dry heat No visible damage.
Resistance(R25)
change rate :
less than ±20%
45±2 deg.C in air, for 500 +48/-0h without loading.
2 Cold -0 +0/-3 deg.C in air, for 500 +48/-0h without loading.
3 Damp heat 60±2 deg.C, 9095%RH in air, for 500 +48/-0h
without loading.
4 High
temperature
with continuous
load
45±2 deg.C in air, PTC is applied with max.
voltage for 500+48/-0h.
*R25 is zero-power resistance at 25 deg.C.
After each test, tested sample should be kept for more than 1 h at room temperature (normal humidity and
normal atmospheric pressure). After that, the resistance should be measured.
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
7 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
4. Fundamental Data
4.1 Experimental Setup
Figure 1 shows experimental setup.
Aluminum plate (L: 10mm / W:10mm / H:0.1mm) is used as standard material.
Micro heater is mounted on FPC.
FPC is put on Aluminum plate by thermal conductivity double side tape,
Ambient temperatures are room temperature at 26 deg.C / 15deg.C / 5 deg.C .
Thermocouple
FPC
Micro heater
Aluminum Plate
L: 10mm / W:10mm / H:0.1mm
Thermal Conductivity
Double side tape
Figure 1 Experimental Setup
Input Vpltage:3V/5V
On Styrofoam
Note: Experiment setup is surrounded by cardboard box.
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
8 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
4.2 Experiment Data (Temperature rise vs. Time)
Time[s]
Temp.(Aluminum Plate)
[deg.C]
Figure 2 Experiment Data (Temperature rise v.s. Time)
Vin:3V/Ta:26[deg.C]
Vin:3V/Ta:5[deg.C]
Vin:5V/Ta:26[deg.C]
Vin:5V/Ta:5[deg.C]
Vin:5V/Ta:15[deg.C] Vin:3V/Ta:15[deg.C]
Used
Micro heater
(Nominal
Resistance
@25deg.C)
3V
3V / 5V
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
9 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
4.3 Experiment Data (Summary)
Vin:3V/Ta:26deg.C
Nominal
Resistance[ohm] Temp.(sat.)[deg.C] Time
(to 40deg.C)[s] I(sat.)[mA] Inrush
Current[mA](*1)
2.2 80 3 69 1364
3.3 78 4 65 909
4.7 77 4 64 638
18 66 6 48 167
33 60 8 40 91
47 55 10 32 64
68 50 15 27 44
Vin:3V/Ta:15deg.C
Nominal
Resistance[ohm] Temp.(sat.)[deg.C] Time
(to 40deg.C)[s] I(sat.)[mA] Inrush
Current[mA](*1)
2.2 72 6 72 1364
3.3 68 7 68 909
4.7 68 7 65 638
18 58 10 51 167
33 50 13 44 91
47 47 25 36 64
68 42 43 29 44
Vin:3V/Ta:5deg.C
Nominal
Resistance[ohm] Temp.(sat.)[deg.C] Time
(to 40deg.C)[s] I(sat.)[mA] Inrush
Current[mA](*1)
2.2 67 8 77 1364
3.3 65 9 75 909
4.7 64 9 69 638
18 52 15 55 167
33 43 24 48 91
47 41 84 38 64
68 34 - 31 44
(*1)Calculated Value by
nominal resistance
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
10 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
Vin:5V/Ta:26deg.C
Nominal
Resistance[ohm] Temp.(sat.)[deg.C] Time
(to 40deg.C)[s] I(sat.)[mA] Inrush
Current[mA](*1)
18 68 6 32 278
33 67 6 33 152
47 63 7 29 106
68 58 9 24 74
Vin:5V/Ta:15deg.C
Nominal
Resistance[ohm] Temp.(sat.)[deg.C] Time
(to 40deg.C)[s] I(sat.)[mA] Inrush
Current[mA](*1)
18 62 9 36 278
33 60 10 34 152
47 56 13 29 106
68 52 16 27 74
Vin:5V/Ta:5deg.C
Nominal
Resistance[ohm] Temp.(sat.)[deg.C] Time
(to 40deg.C)[s] I(sat.)[mA] Inrush
Current[mA](*1)
18 57 13 39 278
33 52 14 39 152
47 49 19 33 106
68 43 33 28 74
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
11 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
5. Dimension, Land Pattern
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
12 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
6. Packing
6.1 Taping Specification
6.1.1 Dimensions of plastic tape
(1) Products shall be packaged in the cavity of the base tape and sealed by top tape and bottom tape.
(2) Top tape and bottom tape have no joints and products shall be packaged and sealed in the cavity
of the base tape, continuously.
6.1.2 Tape strength
(1)Pull strength of top tape and bottom tape shall be specified as follows:
Size[ mm/in.] Plastic tape Cover tape
1608/0402 5N minimum 5N minimum
(2) Peeling force of top tape
*1 peeling angle: 165 to 180 degree against the fixed surface of tape.
*2 peeling speed: 300mm/min.
*3 Peeling force: 0.1 ~ 0.6 N
8.0±0.3
3.5±0.1
1.75±0.1
*
0.65
*
1.15
2.0±0.05
0.8 Max.
( mm )
*:Reference
4.0±0.1 φ1.5
+ 0.1
-0
Direction of feed
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
13 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
6.2 Reeling
6.1.1 Quantity (Standard Quantity)
Part Number Products quantity in a reel
FTP18BC***Q03RT 4,000 pcs. /reel
(2) A tape in a reel contains Leader unit and Trailer unit where products are not packed.
(See the following figure.)
* The reeling specification above shall not be applied for the order less than Standard Quantity.
(3) The plastic tape and cover tape are not attached at the end of the tape (Vacant section)
for a minimum of 5 pithes.
(4) A label shall be attached on the reel.
(MURATA’s part number, inspection number and quantity shall be marked on the lavel.)
(5) Dimensions of reel.
6.1.2 Packing
The reeling shall be packed in a package.The label shall be attached on the package.
(Customer's name, order number, customer's part number, MURATA's part number and quantity shall be
marked on a label.)
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
14 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
7. Caution
1. Applying the voltage exceeding the specified ‘Maximum Voltage’ may causes deterioration
of the characteristics or destruction of this product. Do not apply the voltage exceeding
the ‘Maximum Voltage’.
2. Do not use PTC Thermistor under the following environments because all these factors can
deteriorate the characteristics of product or can cause the failures and the burning-out.
(1)Corrosive or dioxidizing gas atmosphere (Ex. Cl2, H2S, NH3, SOx, NOx, etc.)
(Ex. Resistance abnormality, Emit smoke, Ignition)
(2) Volatile or flammable gas (Ex. Resistance abnormality, Emit smoke, Ignition)
(3) Dusty place (Ex. Short)
(4) Under vacuum, reducing pressure or under high-pressure (Ex. Resistance abnormality)
(5) Place with salt water, oils, chemical liquids or organic solvents
(Ex. Resistance abnormality, Short)
(6) Place strongly vibrated (Ex. Open)
(7) Other place, where is similar like the above-mentioned environments
3. Please install PTC thermistor in order not to touch directly. Because PTC thermistor becomes
high temperature when voltage is applied.
4. Though the top surface of PTC thermistor is insulated, the insulation of the bottom of
PTC thermistor is not enough due to exposure of electrical wiring and so on.
So please ensure proper insulation around PTC thermistor on your product.
5. As the surface temperature of PTC thermistor is changed by the usage condition like thermal
load etc. please use the temperature control circuit with PTC thermistor in case that severe
temperature control is required.
6. Please contact us before using this product 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 (6) Transportation equipment (automobiles, trains, ships, etc.)
(2)Aerospace equipment (7) Traffic signal equipment
(3)Undersea equipment (8) Disaster prevention / Crime prevention equipment
(4)Power plant control equipment (9) Data-processing equipment
(5)Medical equipment (10) Applications of similar complexity or with reliability
requirement comparable to the applications listed in the above
7. 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.
CAUTION
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
15 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
1. Use this product within the specified temperature range. Higher temperature may cause deterioration
of the characteristics or the material quality of this product.
2. Following conditions should be kept in order to avoid deterioration of solderability of outer electrodes
and the characteristics of this products, because this is MOISTURE SENSITIVE DEVICES.
MOISTURE SENSITIVE DEVICES
(1) Calculated shelf life in sealed bag: 6 months at -10 to 40 deg.C and <75% relative humidity (RH).
This product should be treated as MSL3 of JEDEC J-STD-020D.1.
(2) Storage Place: Store this product in no corrosive gas (SOX, Cl, etc.), nor directly under sunshine.
3. Solder and Flux
(1) Solder Paste
Reflow Soldering : Use solder paste.
For your reference, we are using the solder paste below for any internal tests of this product.
• M705 solder paste (Sn:Ag:Cu=96.5wt%:3.0wt%:0.5wt%)
(Manufactured by Senju Metals Industry Co., Ltd.)
(2) Flux : Use rosin type flux in soldering process. If below flux is used, some problems might be
caused in the product characteristics and reliability. Please do not use below flux.
• Strong acidic flux (with halide content exceeding 0.1wt%).
• Water-soluble flux(*Water-soluble flux can be defined as non rosin type flux including
wash-type flux and non-wash-type flux.)
4. For removing the flux after soldering, observe the following points in order to avoid
deterioration of the characteristics or any change of the outer electrodes quality.
(1) Cleaning Conditions
• Please keep mounted parts and a substrate from an occurrence of resonance in ultrasonic cleaning.
• Please do not clean the products in the case of using a non-washed type flux.
(2) Drying : Please fully perform cleaning and keep flux and cleaner components from remaining.
After cleaning, dry promptly this product.
5. Do not give this product a strong press-force nor a mechanical shock. Because such
mechanical forces may cause cracking or chipping of this product.
6. In your mounting process, observe the following points in order to avoid deterioration of the characteristics
or destruction of this product. The mounting quality of this product may also
be affected by the mounting conditions, shown the points below.
Notice
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
16 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
(1) Please mount this product by soldering. When mounted by other methods, such as conductive
adhesives,please contact us in advance.
(2) Recommendable Land Size (All dimensions in mm)
Please be careful that dimension of land pattern may cause the inclination or lift of products mounting.
(3) Printing Conditi
i. Recommendable thickness of solder paste printing shall be 80-100μm.
ii. Please be careful that too much solder cause Solder bridges.
(4) Recommendable Temperature Profile for Soldering
i. Insufficient preheating may cause a crack on body. The difference between
preheating temperature and soldering temperature shall be less than 100 deg.C.
ii. Rapid cooling by dipping in solvent or by other means is not recommended.
<Recommended Soldering Condition>
(5) There is a fear of unexpected failures (insufficient solder-wetting, etc.) in your
mounting process, caused by the mounting conditions. Please evaluate if this product is
correctly mounted under your mounting conditions.
Temp. (deg.C)
Time (s)
90±30s
150 deg.C
180 deg.C
250 deg.C
220 deg.C
3060s
Preheating: 160 +/- 10 deg.C, 1min. ~ 2 min.
Heating : 220 deg.C, 30 60 sec
Peak temp. : 250 deg.C
Data Sheet
FTP Series
Attention:
This datasheet is downloaded from the website of Murata Manufacturing Co., Ltd.
Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice.
Please check with our sales representatives or product engineers before ordering.
17 / 17
http://www.murata.com Doc..No. DM-SA16-E066 Rev.1 201701
1. Please make sure that your product has been evaluated in view of your specifications with our product
being mounted to your product.
2. You are requested not to use our product deviating from the agreed specifications.
3. Please return one duplicate of this product specification to us with your signature
to a knowledge your receipt. If the duplicate is not returned by appointed day, the product specification
will be deemed to have been received by you.
4. We consider it not appropriate to include any terms and conditions with regard to the
business transaction in the product specifications, drawings or other technical documents.
Therefore, if your technical documents as above include such terms and conditions such as
warranty clause, product liability clause, intellectual property infringement liability clause,
or export control clause, they will be deemed to be invalid.
Note