PL
IA
N
Features
■
DC to 3.0 GHz
■
Flanged model
■
Low VSWR
■
Beryllium Oxide ceramic
T
*R
oH
S
CO
M
This series is currently available but
not recommended for new designs.
Applications
■
High power RF transmission
■
Power Dividers/Combiners
CHF9838CBF Series 250 W Stripline Termination and Resistor
General Specifications
Substrate ..........................................Beo
Resistive Film .........................Thick Film
Tab ......................................................Ag
Cover Substrate........................... AL203
Mounting Flange ..........Cu plated with Ni
Resistance ......12.5, 25, 50 or 100 ohms
Tolerance ........................................±5 %
Capacitance (Resistor Only).........4.1 pF
Packaging ............................ 60 pcs./tray
Absolute Ratings
Power ...........................................250 W
Frequency..................................3.0 GHz
VSWR ............................. 1.25 Maximum
Characteristic Curve
300
250
Power (Watts)
200
150
100
50
0
-55
0
100
150
Heat Sink Temperature (°C)
Product Dimensions
24.77
(0.975)
18.42
(0.725)
9.53
(0.375)
3.18
(0.125)
2.79
(0.11)
4.92
MAX.
(0.1937)
9.53
(0.375)
6.5
(0.256)
DIMENSIONS =
MILLIMETERS
(INCHES)
3.0
(0.118)
3.5
(0.1377)
3.79
(0.149)
0.1
(0.0039)
How To Order
CHF 9838 C B F 500 L
Model
Size
Version
Substrate
Mount
F = Flange
Value
12R5 =12.5 Ohms (Resistor Only)
250 = 25 Ohms (Resistor Only)
500 = 50 Ohms (Resistor and Termination)
101 = 100 Ohms (Resistor and Termination)
Function
L = Termination
R = Resistor
REV. 12/15
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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