NTC Thermistor:TCF Type
Lead Frame for Temperature Sensing/Compensation
Features
1. 2. 3. 4. 5. 6. 7. RoHS compliant Body size ψ3mm Radial lead resin coated -40 ~ +100℃ operating temperature range Wide resistance range Cost effective Agency recognition: UL /cUL
Recommended Applications
1. Home appliances (air conditioner, refrigerator, electric fan, electric cooker, washing machine, microwave oven, drinking machine, CTV, radio.) 2. Automotive electronics 3. Computers 4. Digital meter
Part Number Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Product Type
Thinking TCF NTC thermistor TCF type 3
Size
ψ3mm
Zero Power Tolerance of Resistance R25 at 25℃ (R25) F ±1%
102 103 473 1KΩ 10KΩ 47KΩ G H J K ±2% ±3% ±5% ±10%
B Value First Two Digits
30 31 32 : ︰ 40 41 ︰ 30 31 32 : ︰ 40 41 ︰
B Value Tolerance of Last B Value Two Digits 1 ±1%
0 A 1 B 2 ︰ H 8 J 9 K 00 05 10 15 20 ︰ 75 80 85 90 95 2 3 ±2% ±3%
Optional Suffix
Y RoHS compliant
Appearance
A 0.5 x 0.2mm straight lead
Definition of B Value
A B B25/85 B25/50
Structure and Dimensions
2.4 max. 3.8 max.
Tiebar cut 0.7±0.05 0.5± 0.05
2.5±0.5
0.2±0.02 (Unit:mm)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
1
www.thinking.com.tw
2008.03
NTC Thermistor:TCF Type
Lead Frame for Temperature Sensing/Compensation
Electrical Characteristics
Zero Power Resistance at 25° C R25 (K ) TCF3A202□318* TCF3A502□33C* TCF3A103□34D* TCF3A123□347* TCF3A203□40B* TCF3A303□409* TCF3A333□409* TCF3A473□409* TCF3A503□406* TCF3A104□419* 2 5 10 12 20 30 33 47 50 100 1 、2 、3 、 5、10 Tolerance of R25 ( ±%) Tolerance of B value (±%) Max. Power Rating at 25° C Pmax(mW) Thermal Operating Safety Time Temperature Approvals Constant Range τ(Sec.) TL~TU(° C) UL cUL √ √ √ √ 1 、2 、3 150 Approx. 2 Approx. 12 -40~+100 √ √ √ √ √ √ √ √ √ √ √ √ √ √ √
Part No.
B25/85 Value (K) 3180 3325 3435 3470 4015 4090 4090 4090 4060 4190
Dissipation Factor δ(mW/° C)
Note 1: □ = Tolerance of R25 , Note 2: UL/cUL File No E138827
* = Tolerance of B value
Power Derating Curve
Max power rating (%)
100
TU:Maximum operating temperature (℃) TL:Minimum operating temperature (℃)
For example:Ambient temperature(Ta)=55℃ Maximum operating temperature(TU)=100℃ PTa=(TU-Ta)/(TU-25)×Pmax=60% Pmax 0 TL 0 25 TU
Ambient temperature (℃)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
2
www.thinking.com.tw
2008.03
NTC Thermistor:TCF Type
Lead Frame for Temperature Sensing/Compensation
R-T Characteristic Curves (representative)
TCF3A202□318*~TCF3A104□419*
10000
1000
Resistance(KΩ )
100
10
1
TCF3A104□419* TCF3A473□409* TCF3A303□409* TCF3A203□40B* TCF3A123□347* TCF3A103□34D* TCF3A502□33C* TCF3A202□318*
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
(K
0.1
Temperature (℃)
Soldering Recommendation Wave Soldering Profile
Preheating 260℃ Max Temperature Soldering Cooling
Note 2
Note 3
130±20℃
Note 1:
(1~3℃)/sec Approx. 200℃/sec 5℃/sec. (Max)
Note 1
Tamb
Note 2: Note 3:
30~90 sec. <1 sec.
<10 sec.
Time
Recommended Reworking Conditions With Soldering Iron
Item Temperature of Soldering Iron-tip Soldering Time Distance from Thermistor Conditions 360℃ (max.) 3 sec (max.) 2 mm (min.)
THINKING ELECTRONIC INDUSTRIAL Co., LTD.
3
www.thinking.com.tw
2008.03
NTC Thermistor:TCF Type
Lead Frame for Temperature Sensing/Compensation
Reliability
Item Standard Test conditions / Methods Gradually applying the force specified and keeping the unit fixed for 10±1 sec Terminal cross-sectional IEC60068-2-21 Force area (mm2) 0.1