CRT0402 Datasheet, PDF (5/6 Pages) Bourns Electronic Solutions – Selecting the Right Resistor for Your Application

Bourns^® Resistive Products
Selecting the Right Resistor for Your Application
CR Series
CRT/CRL Series
Overview of Resistor Families (Continued)
Bourns® CHF resistors are provided in a standard surface mount package. These parts can
be either electrically insulated or terminated. Generally, there is one exposed lead while the
other lead is tied to the ground plane or to a heat sink. The substrates used in the surface
mount Bourns® CHF resistors are Aluminum Nitride and Beryllium Oxide. Higher power
parts with flanged packages have substrates of Beryllium Oxide, Alumina, and Aluminum
Nitride. While the substrates help to dissipate heat, operation at higher power levels may
require a heat sink to handle the dissipation. In some designs, the CHF series is bolted to the
heat sink, printed circuit board, or ground plane. The power ratings of Bourns® CHF resistors
make it possible to absorb very high pulses in high power situations.
CAT/CAY Series
4816P
CHF9838CNF Series
Table 3
Model
CHF2010CNP
CHF1206CNT
CHF2525CNT
CHF3725CNP
CHF3523CNT
CHF3020CBF
CHF5225xxF
CHF8838CNF
CHF9838CxF
CHF12545CBF
CHR190104CBF
CHF190104KBF
High Frequency Resistors
Power (W)
Frequency
(GHz)
10
2
20
3
40
9
40
4
150
3
10
4
60/30/20
4
150
4
250
4
500
1
800
1
1000
1
VSWR
1.2
1.25
1.25
1.2
1.1
1.35
1.2
1.2
1.2
1.1
1.2
1.2
Substrate
Resistor Values
(Ohms)
ALN
50, 100 +/- 5 %
ALN
50 +/- 5 %
ALN
50 +/- 5 %
ALN
50 +/- 5 %
ALN
50 +/- 5 %
BEO
50, 100, 200 +/- 5 %
ALN, AL203, BEO 50, 100 +/- 5 %
ALN
50, 100 +/- 5 %
ALN, BEO
50 +/- 5 %
BEO
50, 100 +/- 5 %
BEO
12.5, 25, 50, 100 +/- 5 %
BEO
50 +/- 5 %
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