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 Construction |
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| 1. |
Protective coating |
| 2. |
Lead weld reinforcing coating |
| 3. |
Lead wire |
| 4. |
Welding point |
| 5. |
Ceramic substrate |
| 6. |
Platinum thin film |
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Features |
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| • |
T.C.R.is in accordance with JIS•DIN
standards. |
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The small package with
a real ability of 1k  resistance. |
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Thermal time constant is improved with
the small package. |
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Products meet
EU-RoHS requirements.
EU-RoHS regulation is not intended for Pb-glass contained in
glass. |
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Applications |
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| • |
Detections of outer air temperatures filter
clogging of Air Conditioners. |
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Cold Point compensation and temperature
detection probe for thermocouple temperature controllers. |
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Hot wires and temperature compensation
of anemometers. |
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Temperature compensation and revision
for RF circuit of telecommunication equipment. |
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Type |
Dimensions(mm) |
Weight(g)
(1000pcs) |
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W |
L |
t |
f |
d(Nominal) |
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| SDT310LTC |
2.0 0.25 |
3.00.25 |
1.2max. |
1.10.25 |
φ0.20.05 |
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20 |
| SDT310P |
82 |
| SDT310MTM |
| SDT310HLTC |
1.20.10 |
2.00.10
(100) |
5.00.10
(1k) |
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1.1max. |
0.30.1 |
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| SDT310AP |
0.8 0.2 |
3.00.25 |
1.2max. |
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82 |
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| SDT310 |
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LT |
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C |
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100 |
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B |
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3850 |
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| Product Code |
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Size |
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Temperature Range |
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Terminal
Surface Material |
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Nominal Resistance |
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Class |
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T.C.R.
(×10-6/K)
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Nil : standard
H : H style
A : A style |
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LT : -55
- +155
Nil : -55 - +400
MT : -55 - +650
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C : SnCu(SDT310LT, SDT310HLT)
P : Pt clad wire(SDT310, 310N, 310A)
M : PtIr(SDT310MT)
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100 : 100
500 : 500
1K : 1k
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A : (0.15+0.002|t|)
B : (0.3+0.005|t|)
C : (1.0+0.01|t|)
K : 10
(SDT310A) |
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| Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS. |
| Type |
Resistance |
Class*1
: Tolerance of Measuring Temp. |
Resistance Tolerance |
T.C.R.*2
(×10-6/K) |
Thermal
time constant*3 |
Thermal dissipation
constant*3 |
Specified Current*4 |
Operating
Temperature
Range |
| SDT310LTC |
100,
500,
1k |
A : (0.15+0.002|t|) |
0.059% |
3850 |
7.0s
in stationary air |
0.9mW/ |
1mA max. |
-55
 +155 |
| B : (0.3+0.005|t|) |
0.12% |
| C : (1.0+0.01|t|) |
0.39% |
| SDT310P |
A : (0.3+0.002|t|) |
0.059% |
-55
+400 |
| B : (0.3+0.005|t|) |
0.12% |
| C : (1.0+0.01|t|) |
0.39% |
| SDT310MTM |
100 |
B : (0.3+0.005|t|) |
0.12% |
-55
+650 |
| C : (1.0+0.01|t| |
0.39% |
| SDT310HLTC |
100, 1k |
A : (0.15+0.002|t|) |
0.059% |
2.8s
in stationary air |
1.0mW/ |
-55 +155 |
| B : (0.3+0.005|t|) |
0.12% |
| C : (1.0+0.01|t|) |
0.39% |
| SDT310AP |
10 |
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10% |
6s
in stationary air |
1.0mW/ |
-55 +400 |
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*1 |t| is a measuring temperature indicated
at that is not related to marking + • -.
*2 T.C.R.Mesuring Temperature : 0 / +100
*3 Thermal time constant and dissipation constant are values measured
in stationary air and are typical values,which are values of elements
and vary with connecting or fixing methods.
*4 Specified current is a current value that is used at reliability
test under the condition of self heat- generation that can be disregarded.Recommended
measuring currents are 1mA for 100 and 0.1mA for 500
or 1k.SDT310AP can be used as hot - film sensor . Maximum specifired current is 100mA when using under self - heating condition . |
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Temperature Characteristics |
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Approximate Expression for Resistance -
Temperature Characteristics
| -55 - 0 : RT
=R0 {1 +C1T+C2T2+C3(T-100
)T3} |
| 0 - +650 : RT
=R0 (1+C1T+C2T2) |
| RT : Resistance value
at T |
| R0 : Resistance value
at 0 |
| T : Ambient temperature ()
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| Constants C1
,C2 ,C3
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C1
=3.9083 ×10-3 -1
C2 =-5.775 ×10-7-2
C3 =-4.183 ×10-12-4
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Application Notes
Brush up your circuit
Basic Knowledge
