NCP15XM472K03RC Murata, NCP15XM472K03RC Datasheet - Page 6

• Manufacturer Part Number: NCP15XM472K03RC
• Description: Thermistors - NTC 4.7K OHM 10%
• Manufacturer: Murata
• Type: NTCr
• Series: NCPr

Specifications of NCP15XM472K03RC

• Description Of Terminals: Leadless
• Package / Case: SMD
• Mounting Style: Surface Mount
• Pin Count: 2
• Screening Level: Automotive
• Sensitivity Index: 3500K
• Resistance @ 25c: 4.7kohm
• Percentage Of Resistance Tolerance @ 25c: ±10
• Accuracy: ±2
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 125C
• Product Length (mm): 1mm
• Product Height (mm): 0.5mm
• Product Depth (mm): 0.5mm
• Resistance: 4.7 KOhms
• Tolerance: 10 %
• Operating Temperature Range: - 40 C to + 125 C
• Current Rating: 0.46 mAmp
• Power Rating: 100 mW
• Lead Free Status / RoHS Status: Compliant

!Note
!Note
!Basic Characteristics
1. Zero-power Resistance of Thermistor : R
2. B-Constant
3. Thermal Dissipation Constant
4. Thermal Time Constant
!Performance
Please inquire about test conditions and ratings.
Resistance
B-Constant
Thermal Dissipation
Constant
Rated Electric Power
Permissive Operating Current
R=R
R : Resistance in ambient temperature T (K)
(K : absolute temperature)
R
B : B-constant of Thermistor
as (1) formula
B=Rn (R/R
When electric power P (mW) is spent in ambient
temperature T
there is a formula as follows
P=C (T
C : Thermal dissipation constant (mW/ C)
Thermal dissipation constant is varied with dimensions,
measurement conditions, etc.
Period in which Termistor's temperature will change
63.2% of its temperature difference from ambient
temperature T
0
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specifications before ordering.
: Resistance in ambient temperature T
0
expB (1/T-1/T
2
-T
Item
1
) ..................(3)
0
) / (1/T-1/T
1
0
and thermistor temperature rises T
( C) to T
0
) ..............(1)
0
)
1
( C).
Measured by zero-power in specified ambient temperature.
Calculated between two specified ambient temperatures by next formula.
T and T
Shows necessary electric power that Thermistor's temperature rises 1˚C by self heating.
It is calculated by next formula. (mW/˚C)
Shows necessary electric power that Thermistor's temperature rises 100˚C by self heating in ambient temperature 25˚C.
It is possible to keep Thermistor's temperature rising max. 1˚C
............(2)
B =
C =
0
Rn (R/R
1/TY1/T
is absolute temperature (K).
TYT
P
0
0
0
)
0
(K)
2
,
[Resistance vs. Temperature]
[Thermal Time Constant]
Condition
T
T
1
0
10
10
10
10
1
2
1
1
2
20
X
0
20
Temperature (˚C)
Basic Characteristics
Time
40
60
63.2%
80
100
120
R44E9.pdf 05.4.13
B=3450
B=3900
B=4100
5