TFPT

Linear PTC Thermistors, Surface Mount Chip

Vishay

document number: 33017

For technical questions, contact: thermistor1@vishay.com

www.vishay.com

Revision: 25-Oct-06

7

DIMENSIONS in millimeters

CONSTRUCTION

TYPICAL CURVE

Notes

1. Environmental performance specifications use test procedures as outlined in MIL-R-23648D and MIL-STD-202

2. TFPTs are ESD sensitive

A

B

D

C

E

PART NUMBER

A

B

C

D

E

TFPT 0603

1.60 ± 0.10

0.85 ± 0.10

0.45 ± 0.10

0.30 ± 0.20

0.30 ± 0.20

TFPT 0805

2.00 ± 0.15

1.25 ± 0.15

0.45 ± 0.10

0.40 ± 0.20

0.40 ± 0.20

TFPT 1206

3.20 ± 0.15

1.60 ± 0.15

0.55 ± 0.10

0.50 ± 0.25

0.50 ± 0.25

Thermistor

Alumina Substrate

Inner Electrode

Nickel Barrier

Solderable Coating

Overcoating

TEMPERATURE IN °C

5000

4900

4800

4700

4600

4500

4400

4300

4200

4100

4000

3900

3800

3700

3600

3500

3400

3300

3200

3100

3000

- 55

- 25

0

25

50

75

100

125

TEST

MAXIMUM %

High Temperature Exposure (100 hours at 125 °C)

0.25 %

Effects of Bonding (10 seconds solder dip at 260 °C)

0.25 %

Thermal Shock (30 minutes at 65 °C, 30 minutes at 125 °C, 5 cycles)

0.25 %

Low Temperature Operation (Maximum rated power for 2 hours at - 65 °C)

0.25 %

Short Time Overload (2.5 x RCWV for 5 seconds)

0.25 %

Load Life (1000 hours 70 °C, maximum rated power 1.5 hours “ON”, 0.5 hours “OFF”

0.25 %

Solderability (95 % coverage P/F)

P

Leaching (Physical damage P/F)

P