Specified 12.5 Volt, 30 MHz Characteristics 鈥?/div>
Output Power = 60 Watts
Minimum Gain = 13 dB
Efficiency = 55%
MATCHING PROCEDURE
In the push鈥損ull circuit configuration it is preferred that the transistors are
used as matched pairs to obtain optimum performance.
The matching procedure used by Motorola consists of measuring h FE at the
data sheet conditions and color coding the device to predetermined hFE ranges
within the normal hFE limits. A color dot is added to the marking on top of the cap.
Any two devices with the same color dot can be paired together to form a
matched set of units.
MAXIMUM RATINGS
Rating
Collector鈥揈mitter Voltage
Collector鈥揈mitter Voltage
Emitter鈥揃ase Voltage
Collector Current 鈥?Continuous
Total Device Dissipation @ TC = 25擄C
Derate above 25擄C
Storage Temperature Range
Symbol
VCEO
VCES
VEBO
IC
PD
Tstg
Value
18
36
4.0
15
175
1.0
鈥?65 to +150
Unit
Vdc
Vdc
Vdc
Adc
Watts
W/擄C
擄C
MRF455
60 W, 30 MHz
RF POWER
TRANSISTOR
NPN SILICON
CASE 211鈥?7, STYLE 1
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Case
Symbol
R
胃JC
Max
1.0
Unit
擄C/W
ELECTRICAL CHARACTERISTICS
(TC = 25擄C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
OFF CHARACTERISTICS
Collector鈥揈mitter Breakdown Voltage
(IC = 100 mAdc, IB = 0)
Collector鈥揈mitter Breakdown Voltage
(IC = 50 mAdc, VBE = 0)
Emitter鈥揃ase Breakdown Voltage
(IE = 10 mAdc, IC = 0)
V(BR)CEO
V(BR)CES
V(BR)EBO
18
36
4.0
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Vdc
Vdc
Vdc
ON CHARACTERISTICS
DC Current Gain
(IC = 5.0 Adc, VCE = 5.0 Vdc)
hFE
10
鈥?/div>
150
鈥?/div>
DYNAMIC CHARACTERISTICS
Output Capacitance
(VCB = 12.5 Vdc, IE = 0, f = 1.0 MHz)
Cob
鈥?/div>
鈥?/div>
250
pF
(continued)
漏
MOTOROLA RF DEVICE DATA
Motorola, Inc. 1994
MRF455
1
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