67

TFS Series

Surge Capable

Thick Film Non Inductive

A

C

B

H

E

0.50mm

0.25mm

U

Energy*

Power

Dimensions (mm)

Type

(KV)

(J)

(W)

A

B

C

H

E

TFSA

3

6

0.5

9

5.5

10

0.7

1.1

TFSB

3.5

9

0.5

11

5.5

10

0.7

1.1

TFSC

4

11

0.75

13

5.5

10

0.7

1.1

TFSD

7

33

1

21

8

10

0.9

1.3

TFSE

7

44

1.5

21

10.5

10

0.9

1.3

TFSF

11

55

2

26

10.5

10

0.9

1.3

*Published energy rating is for 10ms pulse. For shorter pulses energy rating has to be

derated according to Max. Individual Pulse Rating chart (left) and Single Pulse Energy

Rating considerations (see ohmite.com).

The TFS Series has been spe-

cifically developed to absorb

large amounts of energy by

efficient use of its compact

mass. Ideal for medical surge

protection applications, these

thick film reisistors offer non-

inductive performance in an

axial package.

Uses include power supply

conversion, electron micro-

scopes, X-ray systems, high-

resolution CRT displays, and

geophysical instrument related

products.

F E A T U R E S

• Appropriate for medical surge

protection applications

• Ideal to replace standard carbon

composition resistors

• Custom dimensions, values,

tolerances and characteristics

available

• For energy rating information,

visit www.ohmite.com

O R D E R I N G I N F O R M AT I O N

Ohm Value

Example:

100R = 100Ω

2K40 = 2400Ω

Tolerance

F = 1%

G = 2%

J = 5%

K = 10%

Series

T F S A 1 0 0 K J E

Energy Rating

joules

A = 6

B = 9

C = 11

RoHS Compliant

D = 33

E = 44

F = 55

S P E C I F I C A T I O N S

Material

Resistive Element: Thick Film

Encapsulation: Screen Printed

Glass

Electrical

Resistance Value: 100Ω up to

100KΩ

Temperature Coefficient:

100ppm/°C

Tolerance: 1%, 2%, 5%, 10%

Operating Temperature: -55°C to

+200°C

Test: VDE 0750 (Pulse Duration

10 msec)

M A X I M U M I N D I V I D U A L P U L S E R A T I N G

Pulse Width

1

µs

10

µs 100 µs

1 ms

10 ms 100 ms

0.1

1000

1

10

100

N O T E S

• Momentary overload capability is 5 times rated power for

1 second or 2 times rated power for 5 seconds. Always

verify designs with pulse and surge conditions through

thorough testing of the design at maximum operating

temperature and maximum pulse loading (or some mar-

gin above maximum pulse loading).

• Damage to the resistor by excessive pulse loading is

generally indicated by an increasing resistance of the

resistor.

• Energy ratings are based on single pulses (at least 1

minute between pulses).

• For multiple pulse applications the energy pulse rating

should be reduced and the average power should not

exceed the nominal power rating of the selected model.

S T A N D A R D P A R T N U M B E R S F O R T F S S E R I E S

6 Joules

9 Joules

11 Joules

33 Joules

44 Joules

55 Joules

Ohms Tol.

0.5 Watts

0.5 Watts

0.75 Watts

1 Watts

1.5 Watts

2 Watts

100 1% TFSA100RFE

100 5%

TFSB100RJE

TFSD100RJE

TFSF100RJE

220 1% TFSA220RFE

270 5% TFSA270RJE

TFSC270RJE TFSD270RJE

TFSF270RJE

470 1% TFSA470RFE

470 5%

TFSB470RJE

TFSE470RJE

680 5% TFSA680RJE

TFSC680RJE

TFSE680RJE TFSF680RJE

750 5%

TFSB750RJE

TFSD750RJE

TFSF750RJE

1,000 1% TFSA1K00FE

1,000 5% TFSA1K00JE TFSB1K00JE TFSC1K00JE TFSD1K00JE TFSE1K00JE TFSF1K00JE

1,500 5% TFSA1K50JE

TFSC1K50JE TFSD1K50JE

TFSF1K50JE

2,200 1% TFSA2K20FE

2,700 5%

TFSB2K70JE

TFSE2K70JE

4,700 1% TFSA4K70FE

4,700 5% TFSA4K70JE

TFSC4K70JE TFSD4K70JE

4,990 1% TFSA4K99FE

5,000 5% TFSA75K0JE

6,800 5%

TFSB6K80JE

TFSE6K80JE

10,000 1% TFSA10K0FE

10,000 5% TFSA10K0JE TFSB10K0JE TFSC10K0JE TFSD10K0JE

TFSF10K0JE

16,000 5%

TFSF16K0JE

20,000 1% TFSA20K0FE

TFSF20K0JE

20,000 5%

TFSB20K0JE

TFSD20K0JE

22,000 1% TFSA22K0FE

27,000 5% TFSA27K0JE

TFSC27K0JE

TFSE27K0JE

47,000 1% TFSA47K0FE

50,000 5% TFSA50K0JE

TFSF51K0JE

51,000 5%

TFSB51K0JE TFSC51K0JE TFSD51K0JE

75,000 5%

TFSE75K0JE

100,000 1% TFSA100KFE

100,000 5%

TFSB100KJE TFSC100KJE TFSD100KJE

TFSF100KJE

Our friendly Customer

Service team can be

reached at 866-9-OHMITE

Check product availability at

www.ohmite.com