Construction Features Applications Dimensions Type Designation       Ratings T.C.R. and Resistance Range   Derating Curve   Example of Temperature Characteristics  Approximate Expression for Resistance-Temperature Characteristics

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	Coating color : Black		Construction
			1. Protective coating 2. Thermal film 3. Inner electrode 4. Ni plating 5. Solder plating 6. Ceramic substrate

	Features

	• LP73s are thin-film thermal sensors of SMD type. • LP73s accomodate resistance tolerance 1%, wide range of TCRs,+3000×10-6/K - +5000×10-6/K with the standard products. • Suitable for control of temperatures in various industrial equipment. • Suitable for both flow and reflow solderings. • Products with lead free termination meet EU-RoHS requirements.

	Applications

	• Temperature compensation on overheat prevention for FDDs, Cameras and Small DC Motors. • Temperature compensation for various kinds of Sensor Drive Circuits. • Temperature compensation for Telecommunication and Measuring Devices. • Temperature compensation for Hybrid ICs.

	Dimensions

Type (Inch Size Code) Dimensions(mm) Weight (g) (1000pcs) L0.2 W0.2 c d t 1J(0603) 1.6 0.8 0.30.2 0.30.2 0.50.1 1.91 2A(0805) 2.0 1.25 0.40.2 0.40.2 0.50.15 4.09 2B(1206) 3.2 1.6 0.50.3 0.50.3 7.61

	Type Designation

LP310   2F   103.   J   362         Product Code   Size   Nominal Resistance   Resistance Tolerance   T.C.R. (×10-6/K)       2F: 1.6×0.8mm 1F: 2.0×1.25mm 1J: 3.2×1.6mm   3digits   F:1% G:2% J :5%   3digits

LP73

2B

T

TE

103

J

3600

Product Code

Size

Terminal Surface Material

Taping

Nominal Resistance

Resistance Tolerance

T.C.R. (×10-6/K)

1J: 1.6×0.8mm 2A: 2.0×1.25mm 2B: 3.2×1.6mm

T:Sn

TE: 4mm pitch plastic embossed BK: Bulk

3digits

F:1% G:2% J :5%

The terminal surface material lead free is standard. Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS. For further information on taping,please refer to Packagings For Chip Components

	Ratings

Type Power Rating Thermal Time Constant Thermal Dissipation Constant Rated Ambient Temperature Operating Temperature Range LP73 1J 0.016W 2s 1.2mW/ +70 -55 - +125 LP73 2A 0.031W 4s 1.8mW/ LP73 2B 0.063W 6.5s 2.4mW/

Thermal time constant and dissipation constant are reference values, which are values of elements and vary with connecting or fixing methods.

	T.C.R. and Resistance Range

T.C.R. (×10-6/K) T.C.R. Tolerance Resistance Range(() (E24 & 5.0 × 10n) Resistance Tolerance LP73 1J LP73 2A LP73 2B 3000 5% 100 1k 100 2k 100 10k F:1% G:2% J:5% 3300 3600 4000 4500 5000 T.C.R. Mesuring Temperature : +25/+65

	Derating Curve

For resistors operated at an ambient temperature of 70 or left, a power rating shall be derated in accordance with the left derating curve.

	Example of Temperature Characteristics

	Approximate Expression for Resistance-Temperature Characteristics

(Values are not guaranteed but typical.) RT=R25(C0+C1T+C2T2) RT : Resistance value at T R25 : Resistance value at 25 T : Ambient temperature() C0, C1, C2 : Constants T.C.R. (×10-6/K) C0 C1 C2 3000 0.930587 0.00265022 3.8983110-6 3300 0.924633 0.00292657 4.0063710-6 3600 0.915818 0.00323524 4.3417310-6 4000 0.907050 0.00361010 4.3346210-6 4500 0.897412 0.00395222 6.0520110-6 5000 0.885114 0.00436780 7.4804810-6   Precautions for Use The resistance varies by its self-heating. Reasonable care must be exercised in using it by taking its self-heating into consideration. Sensors operated at rated power will cause temperature errors in excess of 10 .

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