Resistors
Make Possible
Thick Film
Metal Glaze™ Resistor
½½½½½½F½½½
GF Series
Rugged molded jacket
Flame resistant construction
GF
Metal Glaze™ thick film element
Series
High temperature
•½½R½½½½½½½½½½½½½½½½½½½
soldered termination
•½½F½½½½½½½½½½½½½½½½½½½½½½½½½½½
•½½½½½½½½½½½½½™½½½½½½½fi½½½½½½½½½½
•½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½™½R½½½½½½½
½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½
Spiralled or lase r
helixed to resistanc e
value, toleranc e
High temperatur e
soldered te rmination
lead assemb ly
½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½
Tough molded ja cket
Metal Glaz e thick film
element fired at 1000˚ C
to solid ceramic core
Tin-lead electroplated
copper leads
½½½½½½½½½½½½½½½½½½½
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½
E½½½½½½½½½½D½½½
IRC
Type
GF-55
GF-07
GF-60
GF-20
GF-3
Flamability
F½½½½½R½½½½½¹
F½½½½½R½½½½½¹
F½½½½½R½½½½½¹
F½½½½½R½½½½½¹
F½½½½½R½½½½½¹
Marking
½½½½½
½½½½½
½½½½½
½½½½½
½½½½½
Tolerance
(±%)
½
2½½5
½
2½½5
½½½2½½5
T.C.
(ppm/°C)
5½*½½½½½
½½½
5½*½½½½½
½½½
2½½
IRC Power Rating
(watts @ °C)
½/2W½@½7½½½
½/2W½@½7½½½
3/4W½@½7½½½
3/4W½@½7½½½
2W½@½7½½½
3W½@½25½½
*½.½.½½½½5½½½½½/½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½.
IRC
Type
GF-55
GF-07
GF-60
GF-20
GF-3
Maximum Voltage
Rating
25½
25½
35½
35½
75½
IRC Resistance
Range (ohms)
½.4½½½½2½
½.4½½½½2½
½.4½½½½2½
½.4½½½½2½
½½½½½2½
MIL Resistance
Range (ohms)
½
½
½
½
½
Nominal Size
½/4W
½/4W
½/2W
½/2W
3W
Dimension Code
3
3
4
4
5
NO½E:½½¹½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½½fl½½½½½½½½½½½½½½½½½½½fi½½½½½½.
General Note
General Note
IRC
Electronics
right to make changes
to
product
changes in
without notice or liability.
without notice or liability.
TT
reserves the
reserves the right
in
make
specification
product specification
All information is subject to IRC’s own data and is considered accurate at time of going to print.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
© TT Electronics plc
www.ttelectronicsresistors.com
TT electronics plc
GF Series Issue October 2008 Sheet 1 of 2
A subsidiary of
07.14
Thick Film
Metal Glaze™ Resistor
Thick Film
Metal Glaze™ Resistor
GF Series
Make Possible
Physical Data
LL
BL
LD
BD
Dimensions
Dim
Code
3
4
5
Nominal
Size
1/4
1/2W
3W
Body Length
BL
0.250 ± 0.015
(6.4 ± 0.4)
0.390 ± 0.010
(9.9 ± 0.3)
0.515 ± 0.010
(13.1 ± 0.3)
Body Diameter
BD
0.090 ± 0.008
(2.3 ± 0.2)
0.140 ± 0.008
(3.8 ± 0.2)
0.225 ± 0.008
(5.7 ± 0.2)
Lead Length
LL
0.150 ± 0.125
(38.1 ± 3.2)
0.150 ± 0.125
(38.1 ± 3.2)
0.150 ± 0.125
(38.1 ± 3.2)
Lead Diameter
LD
0.025 ± 0.002
(0.64 ± 0.05)
0.025 ± 0.002
(0.64 ± 0.05)
0.032 ± 0.002
(0.81 ± 0.05)
Clean Lead
0.310
(7.9)
0.450
(11.4)
0.575
(14.6)
Ordering Data
Sample Part No.
MIL Style
GF
-
20
D
1002
F
GS = Fixed film resistor. High stability
Power Rating
07 = 1/2 watt
20 = 3/4 watt
3 = 3 watt
T.C. Characteristics
D = ±100 ppm/°C
C = ±50 ppm/°C
Resistance
First three digits represent significant figures; fourth digit is number of zero’s.
Tolerance
F = ±1%, G = ±2%, J = ±5%
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
GF Series Issue October 2008 Sheet 2 of 2
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.
www.ttelectronicsresistors.com
© TT Electronics plc
07.14
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