Linear PTC Thermistors, Surface Mount Chip
www.vishay.com For technical questions, contact: thermistors1@vishay.com Document Number: 33014
1Revision: 04-Apr-05
PTFT
Vishay Dale
FEATURES
•Solderable wraparound terminations
•Alumina substrate base with PTC thick film element
•0603, 0805, and 1206 sizes available
•Available in tape and reel packaging
•Standard tolerances: ± 5 %, ± 10 %
•Contact factory for non-standard tolerance
•Linear from - 55 °C to + 125 °C
•Maximum linear deviation: ± 0.01 %/°C
Notes 1. Contact Vishay Dale if closer TCR lot tolerance is desired. 2. Other R25 values and tolerances are available upon request.
Note
1. Rated Continuous Working Voltage is maximum working voltage or square root of the power rating times resistance value, whichever is less.
STANDARD ELECTRICAL SPECIFICATIONS
TCR LOT
ppm
- 55 °C to + 125 °C
TCR1)
TOLERANCE
ppm
R25 Ω VALUE RANGE (5 % and 10 % TOLERANCE)2)
0603 0805 1206
MIN. MAX. MIN. MAX. MIN. MAX.
3500 ± 300 10 -22 10 -39 10 -47
3300 ± 300 27 -120 47 -180 56 -220
3100 ± 300 150 -270 220 -330 270 -470
2900 ± 300 330 -560 390 -680 560 -1K
2700 ± 300 680 -1.2K 820 -1.5K 1.2K -3.9K
2500 ± 300 1.5K -5.6K 1.8K -6.8K 4.7K -8.2K
2300 ± 300 6.8K -10K 8.2K -10K 10K -15K
STANDARD RESISTANCE VALUES
10 120 1.5K
12 150 1.8K
15 180 2.2K
18 220 2.7K
22 270 3.3K
27 330 3.9K
33 390 4.7K
39 470 5.6K
47 560 6.8K
56 680 8.2K
68 820 10K
82 1K 12K
100 1.2K 15K
STANDARD TECHNICAL SPECIFICATIONS
PART NUMBER POWER RATING MAXIMUM WORKING VOLTAGE RCWV1)
PTFT 0603 75 mW 30 VDC
PTFT 0805 100 mW 40 VDC
PTFT 1206 125 mW 50 VDC
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: PTFT1206L1002KZ (preferred part numbering format)
Historical Part Number: PTFT1206L1002KZ (will continue to be accepted)
P TFT1206L1002KZ
PTFT1206 L
HISTORICAL MODEL CHARACTERISTIC RESISTANCE VALUE TOLERANCE CODE PACKAGING
GLOBAL MODEL CHARACTERISTIC RESISTANCE VALUE TOLERANCE CODE PACKAGING
PTFT0603
PTFT0805
PTFT1206
L = Linear 1002 = 10K J = ± 5 %
K = ± 10 %
F = Lead (Pb)-free, Bulk
W = Lead (Pb)-free, T/R (Full)
P = Tin/Lead, Bulk
Z = Tin/Lead, T/R (Full)
1002 K Z
PTFT
Linear PTC Thermistors, Surface Mount Chip Vishay Dale
Document Number: 33014 For technical questions, contact: thermistors1@vishay.com www.vishay.com
Revision: 04-Apr-05 2
DIMENSIONS in inches [millimeters]
CONSTRUCTION
Notes
1. Environmental performance specifications use test procedures as outlined in MIL-R-23648D and MIL-STD-202.
2. PTFT’s are ESD Sensitive.
3. Test reading accuracy of ± 0.3 %.
A
B
D
C
E
PART NUMBERABCDE
PTFT0603 0.063 ±0.006
[1.60 ±0.15]
0.031 + 0.006 - 0.002
[0.80 + 0.15 - 0.05]
0.020 ±0.004
[0.50 ±0.10]
0.012 ±0.008
[0.30 ±0.20]
0.012 ±0.008
[0.30 ±0.20]
PTFT0805 0.079 ±0.006
[2.00 ±0.15]
0.049 ±0.006
[1.25 ±0.15]
0.020 ±0.006
[0.50 ±0.15]
0.016 ±0.010
[0.40 ±0.25]
0.016 ±0.010
[0.40 ±0.25]
PTFT1206 0.124 ±0.006
[3.15 ±0.15]
0.063 ±0.006
[1.60 ±0.15]
0.022 ±0.006
[0.56 ±0.15]
0.020 ±0.010
[0.50 ±0.25]
0.020 ±0.010
[0.50 ±0.25]
Overglaze
Thermistor
Alumina Substrate
Inner Electrode
Nickel Barrier
Solderable Coating
PERFORMANCE1)
TEST3) MAXIMUM % ΔR2)
1K and Below Above 1K
High Temperature Exposure (100 hours at 125 °C) 1 % 1 %
Effects of Bonding (10 sec. Solder dip at 260 °C) 1 % 1 %
Thermal Shock (30 min. at - 65 °C, 30 min. at 125 °C, 5 cycles) 1 % 5 %
Low Temperature Operation (Maximum Rated Power for 2 hours at - 65 °C) 1 % 10 %
Short Time Overload (2.5 x RCWV for 5 seconds) 1 % 20 %
Moisture Resistance (240 hours, 10 cycles) 4 % 5 %
Load Life (1000 hours 70 °C, Maximum Rated Power 1.5 hours “ON”, 5 hours “OFF”) 2 % 10 %
Load Humidity (1000 hours at 85 °C, 85 % RH, and 10 % RCWV) 5 % 15 %
Solderability (95 % coverage P/F) P P
Leaching (Physical Damage P/F) P P
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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