BF255 TRANSISTORS Datasheet

BF255 Datasheet, PDF, Equivalent


Part Number

BF255

Description

AM/FM TRANSISTORS

Manufacture

Motorola

Total Page 2 Pages
Datasheet
Download BF255 Datasheet


BF255
BF254
BF255
CASE 29-02, STYLE 21
TO-92 (TO-226AA)
AM/FM TRANSISTORS
NPIM SILICON
MAXIMUM RATINGS
Rating
Collector-Emitter Voltage
Collector-Base Voltage
Emitter-Base Voltage
Collector Current - Continuous
Total Device Dissipation @Ta = 25°C
Derate above 25°C
Total Device Dissipation @Tc = 25°C
Derate above 25°C
Operating and Storage Junction
Temperature Range
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Case
Thermal Resistance, Junction to Ambient
Symbol
VCEO
VCBO
VEBO
ic
PD
Pd
Tj, T st g
Symbol
Rejc
Rfljc
Value
20
30
5.0
100
350
2.8
1.0
8.0
-55 to +150
Max
125
357
Unit
Vdc
Vdc
Vdc
mAdc
mW
mW/°C
Watt
mW/°C
°C
Unit
°C/W
°C/W
ELECTRICAL CHARACTERISTICS (Ta = 25 °C unless otherwise noted)
Characteristic
OFF CHARACTERISTICS
Symbol
Collector-Emitter Breakdown Voltage
(IC = 1.0 mAdc, Ib = 0)
Collector-Base Breakdown Voltage
(IC = 10 uAdc, Ie = 0)
V(BR)CE0
V(BR)CBO
Emitter-Base Breakdown Voltage
(IE = 10 uAdc, Ic = 0)
V(BR)EB0
Collector Cutoff Current
(Vcb = 10 Vdc, Ie = 0)
ICBO
Emitter Cutoff Current
(V E B = 3.0 Vdc, Ic = 0)
ON CHARACTERISTICS
lEBO
DC Current Gain
dC = 1-0 mA, VcE = 10 Vdc)
Base-Emitter On Voltage
(IC = 1 mAdc, VcE = 1 Vdc)
SMALL-SIGNAL CHARACTERISTICS
BF254
BF254-3
BF254-4
BF255
BF255-2
BF255-3
BF254
BF255
hFE
VBE(on)
Current Gain-Bandwidth Product
(IC = 1 -0 mAdc, VcE = 1 Vdc, f = 1 00 MHz)
BF254
BF255
Common Emitter Feedback Capacitance
(Vcb = 1 Vdc, Ie = 0, f = 1 .0 MHz)
Noise Figure
dC = 1 mAdc, Vce = 1 Vdc, f = 1 MHz, Rs = 50 ohms)
n
Cre
Nf
Min.
20
30
5.0
65
65
100
35
35
65
Typ.
.68
260
200
0.90
1.7
100
100
220
125
220
125
75
125
Unit
Vdc
Vdc
Vdc
nAdc
nAdc
Vdc
MHz
pF
dB
2-156

BF255
BF254, BF255
ELECTRICAL CHARACTERISTICS (continued) (Ta = 25 °C unless otherwise noted)
TYPICAL ADMITTANCE PARAMETERS (\q = 1 .0 mAdc, VcE = 1
Symbol
f = 450 KHz
BF254
BF255
911e
bile
0.20
0.05
0.40
0.06
922e
b22e
bi2e
912e
921e
b2le
3.0
8.0
- 5.0
- 0.7
30
- 0.003
1.5
8.0
- 5.0
- 0.4
30
- 0.004
Vdc, frequency as stated)
f= 10.7 MHz
BF254
BF255
0.26
0.5
1.2 1.6
5.3
190
- 130
4.5
190
- 130
- 3.0
- 3.5
30
- 0.7
30
- 1.0
Unit
mmhos
mmhos
^mhos
nmhos
(imhos
umhos
mmhos
mmhos
FIGURE 1 - DC CURRENT GAIN
i
1
i
E "^E;
i
i ZZjX-
VCE = 10 V
;
<o 200
1 100
-fZL
^\o
°
50 —~-\"^
40
u! 30
\
20
._
1
ii
Ji
I
!
ii;
+---
fH~"H
BF254
|
I
|
XTBF255
~
^1 ;
i
i!
i ii
0.5 1.0
i
i
50
10
Ii
I
I II
20
IC. COLLECTOR CURRENT (mA)
FIGURE 2 - CURRENT GAIN-BANDWITH PRODUCT
=1 RTF00Q
i ii
i pq
H1
4V C E= 10 \
I
1 --T
^-1
111 I
|
I—
i_L
...
V BF254
,.-^-'
BF255
H100
i
I
T"!
'
i
1
1.5
1
2
5 10
IC, COLLECTOR CURRENT (mA)
20
FIGURE 3 - "ON" VOLTAGE
]
1 !T
mv
-
E
-
v
!
;
TT "mi
.Mi-
ii
_ 0.8 t—I—
ti
> 0.7 =t
6°' j-
1
r
I
> 0.5
1
;
]
'
i ! !!
, .._Uil. j-^-
'
;
!
i
'
i
1
L
a
>
0.4
0.3
;
0.2
!
i
MiUjZZt
_uLU .Liirr
2 5 10
IC. COLLECTOR CURRENT (mA)
< 0.5
° 0.4
°
0.3
FIGURE 4 - CAPACITANCES
Ch
'
f- Hz1 IV
Cob
0.1 02
05 1.0 2.0
50 10
Vr, REVERSE VOLTAGE VOLTS
20
2-157


Features BF254 BF255 CASE 29-02, STYLE 21 TO-92 ( TO-226AA) AM/FM TRANSISTORS NPIM SILICO N MAXIMUM RATINGS Rating Collector-Emi tter Voltage Collector-Base Voltage Emi tter-Base Voltage Collector Current - C ontinuous Total Device Dissipation @Ta = 25°C Derate above 25°C Total Device Dissipation @Tc = 25°C Derate above 2 5°C Operating and Storage Junction Tem perature Range THERMAL CHARACTERISTICS Characteristic Thermal Resistance, Junc tion to Case Thermal Resistance, Juncti on to Ambient Symbol VCEO VCBO VEBO ic PD Pd Tj, T st g Symbol Rejc Rfljc Va lue 20 30 5.0 100 350 2.8 1.0 8.0 -55 t o +150 Max 125 357 Unit Vdc Vdc Vdc mA dc mW mW/°C Watt mW/°C °C Unit °C/W °C/W ELECTRICAL CHARACTERISTICS (Ta = 25 °C unless otherwise noted) Chara cteristic OFF CHARACTERISTICS Symbol Collector-Emitter Breakdown Voltage (IC = 1.0 mAdc, Ib = 0) Collector-Base Bre akdown Voltage (IC = 10 uAdc, Ie = 0) V(BR)CE0 V(BR)CBO Emitter-Base Breakdo wn Voltage (IE = 10 uAdc, Ic = 0) V(BR)EB0 Collector Cutoff C.
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