Dual Function

Fuse Resistors

F500 Series

• 4222 South Staples Street • Corpus Christi Texas 78411 USA

Wire and Film Technologies Division

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

F500 Series Issue February 2010 Sheet 2 of 2

Blow Time vs Current Graph

0

5

10

15

20

Blow Time (seconds)

0.01

0.1

1

10

Upper Limit

Rated Steady State Current

Actual Readings

Blown Region

All F 500 Style Fuse Resistors have been tested

and rated for Current v/s Maximum Blow Time

for blow times between 10 msec and 10 sec. A

general illustration is shown. Actual blow time

v/s current data may be obtained with each lot

shipment upon request when ordering.

U.L. Approved Dual Function

Fuse Resistors

Physical Data

0.140 ± 0.015

(3.6 ± 0.4mm)

0.400 Max

(10.2 mm)

Lead

Length

1.25 Min

(31.75mm)

(Lead Diameter #24 Awg)

0.020” (0.5mmA)

Ordering Data

Contact factory for ordering information.

Capability Data

Resistance Range

0.2Ω to 200Ω

Resistance Tolerance

10% STD, 5% and 2%

Operating Temperature

-55°C to +150°C

TCR

±150ppm <1Ω, ±50ppm, 1Ω and above

Construction

Intrinsically safe single fusing element - all welded construction - ceramic bobbin - ceramic

shell, air encapsulated.

Flameproof construction

Various quality assurance data options available, including conditioning and plot of blow

time vs. current.

04.17

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

http://www.ttelectronics.com/resistors

BI Technologies IRC Welwyn