High Frequency
Surface Mount Terminators
RFX Series
•
•
•
•
RoHS Compliant
Frequency operation to 3GHz
Small size 10W power chip resistors
1% tolerance and 50ppm/°C absolute TCR
The RFX series of high frequency line terminators provide superb
high frequency performance at power ratings to 10W in a surface
mount chip. Both leadless versions provide maximum flexibility for mechanical circuit attachment and circuit
configuration.
The RFX is available in a wide range of ohmic values from 50Ω to 800Ω affording maximum flexibility in controlled
impedance transmission line design and termination. Applications include RF/microwave power amplifiers, power
splitters, cell base stations and circulators/isolators.
Electrical Data
RFH and RFK
Power Rating
Resistance Values
Tolerance
Capacitance
Operating Temperature Range
Absolute TCR
10W
50Ω, 100Ω, 150Ω, 200Ω, 250Ω, 300Ω, 400Ω, 600Ω, 800Ω
±1%
<0.05pF
-55°C to 155°C
±50ppm/°C
Environmental Data
Test Condition
Short TimeOverload
Load Life
Moisture Resistance
Temperature Cycle
Resistance to Soldering Heat
Insulation Resistance
2.5 x Rated Voltage, 5 seconds
1000 Hours, 70°C
1000 Hours, 40°C, 95% RH
5 Cycles, +125°C high, -55°C Low
260°C, 10 sec.
500V, 1 minute
Maximum
±0.2% +0.05Ω
±0.2% +0.05Ω
±0.2% +0.05Ω
±0.2% +0.05Ω
±0.2% +0.05Ω
>1,000MΩ
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
© IRC Advanced Film Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
A subsidiary of
TT electronics plc
RFX Series Issue January 2009 Sheet 1 of 3
High Frequency
Surface Mount Terminators
Frequency Performance Data
S11, RFH72LFC500F
CH1
S 11
1 U FS
1:
51.916
W
1 Jul 2004 16:30:26
0.0703
W
11.19 ph
1 000. 000 000 MHz
PRm
Cor
2: 53.658
W
-1.4375
W
1.5 GHz
3: 54.947
W
-4.5469
W
2 GHz
↑
1
S11, RFH72LFC100F
CH1
S11
1 U FS
1:
113.85
W
5 Aug 2004 17:30:09
-34.949
W
4.5539 pF
1 000. 000 000 MHz
PRm
Cor
2: 98.926
W
-42.762
W
2 GHz
3: 94.793
W
-41.504
W
3 GHz
↑
1
4: 54.627
W
-9.8371
W
2.5 GHz
5: 51.523
W
-13.814
W
3 GHz
4: 101.49
W
-33.52
W
4 GHz
5: 98.43
W
-28.801
W
5 GHz
5
5
CENTER
1 500. 015
000 MHz
SPAN 2 999. 970 000 MHz
START
.030 000 MHz
STOP 6 000. 000 000 MHz
S11, RFH72LFC150F
CH1
S11
1 U FS
1:
113.85
W
5 Aug 2004 17:30:09
-34.949
W
4.5539 pF
1 000. 000 000 MHz
PRm
Cor
2: 98.926
W
-42.762
W
2 GHz
3: 94.793
W
-41.504
W
3 GHz
↑
1
VSWR, RFH72LFC500F
CH1 S11
PRm
Cor
SWR
100 m /
REF
1
5
Jul
2004
1
19:15:00
1.0153
1 000 000 000 MHz
2: 1.022
1.5 GHz
3: 1.0365
2 GHz
4: 101.49
W
-33.52
W
4 GHz
5: 98.43
W
-28.801
W
5 GHz
↑
5
4: 1.051
2.5 GHz
5: 1.0633
3 GHz
2
3
4
5
1
CENTER 1 500 015 000 MHz
START
.030 000 MHz
STOP 6 000. 000 000 MHz
SPAN 2 999 970 000 MHz
Thermal Data
Temperature Rise
RFH72LFC101F on 0.8mm Glass Teflon PWB
180
Temperature Rise (°C)
Temperature Rise
RFH72LFC101F on attached heat sink
180
Temperature Rise (°C)
160
140
120
100
80
60
40
20
0
1
2
3
4
5
6
7
8
9
10
Applied Power (W)
Terminals
Terminals
Terminals
Resistor
surface
Resistor
Surface
Resistor surface
160
140
120
100
80
60
40
20
0
2
4
6
8
Resistor Surface
Resistor surface
Resistor surface
Terminals
Terminals
Terminals
10 12 14 16 18
20
Applied Power (W)
RFX Series Issue January 2009 Sheet 2 of 3
© IRC Advanced Film Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
High Frequency
Surface Mount Terminators
Physical Data
RFH
RFK
Dimensions (mm)
Model
RFH52LF
RFH72LF
RFK52LF
RFK72LF
A
5.0
7.0
5.0
7.0
B
2.5
2.0
2.5
2.0
C
1.2 max
1.2 max
1.2 max
1.2 max
D
—
—
2.3
1.8
E
—
—
4.8
6.8
F
0.8
0.8
—
—
Power Derating Curve
100
Ordering Data
Prefix
Model
HFR - RFH72LF - C50 OHM
F
RFH52LF; RFH72LF; RFK52LF; RFK72LF
% Of Rated Power
Resistance
50
C50 OHM; C100 OHM; C150 OHM; C200 OHM
C250 OHM; C300 OHM; C400 OHM; C600 OHM; C800 OHM
Tolerance
F = ±1%
0
25
100
155
Ambient Temperature (°C)
© IRC Advanced Film Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
RFX Series Issue January 2009 Sheet 3 of 3
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