580 Pleasant St.
Watertown, MA 02172
PH: (617) 926-0404
FAX: (617) 924-1235
2N2484
SWITCHING
TRANSISTOR
JAN, JANTX, JANTXV
SMALL SIGNAL
BIPOLAR
NPN SILICON
Maximum Ratings
RATINGSYMBOLVALUEUNIT
Collector - Emitter Voltage V
Collector - Base Voltage V
Emitter - Base Voltage V
Collector Current - ContinuousI
Total Device Dissipation @ TA = 25 °C
Derate above 25 °C
Total Device Dissipation @ TC = 25 °C
Derate above 25 °C
Operating Junction&Storage Temperature Range TJ, T
P
P
CEO
CBO
EBO
C
D
D
stg
-65 to +200
60Vdc
60Vdc
6Vdc
50mAdc
360mW
2.06
1.2WATTS
6.85
mW/°C
mW/°C
°C
Thermal Characteristics
CHARACTERISTICSYMBOLMAXUNIT
Thermal Resistance, Junction to Ambient
SMALL - SIGNAL CHARACTERISTICSSYMBOLMINMAXUNIT
Output CapacitanceC
( V
= 5 Vdc, IE = 0, 100kHz ≤ f ≤ 1 MHz )
CB
Input CapacitanceC
( V
= 0.5 Vdc, IC = 0, 100kHz ≤ f ≤ 1 MHz )
EB
Small - Signal AC Characteristics (TA = 25°C)
LOW FREQUENCYSYMBOLMINMAXUNIT
Common - Emitter Forward Current Transfer Ratioh
( IC = 1 mA, VCE = 5 V, f = 1 kHz )250900
Common - Emitter Short Circuit Input Impedanceh
( IC = 1 mA, VCE = 5 V, f = 1 kHz )3.524
Common - Emitter Open Circuit Output Admittanceh
( IC = 1 mA, VCE = 5 V, f = 1 kHz )40
Common-Emitter Open Circuit Reverse Voltage Transfer Ratioh
( IC = 1 mA, VCE = 5 V, f = 1 kHz )8.0x10
HIGH FREQUENCY AND NOISE
Magnitude of Common Emitter
Short Circuit Forward Current Transfer Ratio
( IC = 50 µA, VCE = 5 V, f = 5 MHz )
( IC = 500 µA, VCE = 5 V, f = 30 MHz )
Noise FigureF
( IC = 10µAdc, VCE 5 Vdc, RG = 10kΩ, f = 100Hz )
Noise FigureF
( IC = 10µAdc, VCE 5 Vdc, RG = 10kΩ, f = 1 kHz )
Noise FigureF
( IC = 10µAdc, VCE 5 Vdc, RG = 10kΩ, f = 10 kHz )
Wide Band Noise FigureF
( IC = 10µAdc , VCE 5 Vdc ,
RG = 10 kHz , f = 10 Hz to 15.7 kHz )3.0dB
obo
ibo
fe
ie
oe
re
hfe
1
2
3
4
5pF
6pF
kΩ
µmhos
-4
3.0
2.07.0
7.5dB
3.0dB
2.0dB
S p i c e M o d e l (based upon typical device characteristics)
*1. Microsemi Corp. claims no responsibility for misapplication of Spice Model information. Spice modeling should be
used as a precursor guide to in-circuit performance. Actual performance is the responsibility of the user / designer.
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
Page 4
2N2484
TO 18 CASE OUTLINE
DIE CHARACTERISTICS
Back is Collector
Chip Thickness is:
10 MILS TYP
Metalization is:
Top = Al, Back = Au
DIE OUTLINE
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
Page 5
1000
2N2484
DC CURRENT GAIN
TJ = 25 C VCE = 5
1000
typ
100
hFE, CURRENT GAIN
10
-6
10
-5
10
IC, COLLECTOR CURRENT (A)
-4
10
FIGURE 1
COLLECTOR SATURATION vs BASE CURRENT
TJ = 25 C
1.0
0.8
100
-3
10
10
-2
10
1.0
0.8
0.6
IC = 1 mA
0.4
0.2
0.0
VCE, COLLECTOR-EMITTER (V)
-5
10
-4
10
IB, BASE CURRENT (A)
-3
10
0.6
0.4
0.2
0.0
-2
10
FIGURE 2
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
Page 6
2N2484
JUNCTION CAPACITANCE
TJ = 25 C 100 kHz < f < 1 MHz
8
8
6
CIBO
4
COBO
2
Junction Capacitance (pF)
0
.1110
Reverse Junction Voltage (V)
FIGURE 3
SMALL SIGNAL CURENT GAIN vs COLLECTOR CURRENT
TJ = 25 C VCE = 5 V f = 1kHz
1000
6
4
2
0
1000
800
typ.
600
400
200
0
.01.1110
SMALL SIGNAL CURRENT GAIN, hfe
COLLECTOR CURRENT (mA)
800
600
400
200
0
FIGURE 4
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
Page 7
2N2484
HIGH FREQUENCY GAIN
TJ = 25 C VCE = 5 V f = 30 MHz
25
25
20
15
typ.
10
5
HIGH FREQUENCY GAIN | hfe |
0
.1110
COLLECTOR CURRENT (mA)
FIGURE 5
GAIN vs FREQUENCY
TJ = 25 C IC = 500 uA VCE = 5 V
10
20
15
10
5
0
10
8
6
| hfe |
4
2
0
110100
typ
8
6
4
2
0
Frequency (MHz)
FIGURE 6
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
Page 8
INPUT IMPEDANCE vs COLLECTOR CURRENT
TJ = 25 C VCE = 5 V f = 1 kHz
3
10
2N2484
3
10
2
10
1
10
hie (k-ohms)
0
10
.1110100
typ.
IC (mA)
FIGURE 7
OUTPUT ADMITTANCE vs COLLECTOR CURRENT
TJ = 25 C VCE = 5 V f = 1 kHz
1000
10
10
10
1000
2
1
0
100
hoe (uS)
10
1
.1110100
typ.
100
10
1
IC (mA)
FIGURE 8
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
Page 9
VOLTAGE FEEDBACK RATIO vs COLLECTOR CURRENT
TJ = 25 C VCE = 5 V f = 1kHz
100
2N2484
100
10
1
.1110100
VOLTAGE FEEDBACE RATIO, hre (x 1E-4)
COLLECTOR CURRENT (mA)
FIGURE 9
NOISE FIGURE (db) VS COLLECTOR CURRENT
TJ = 25 C VCE = 5 V RG = 10 k f = 1 kHz
10
10
typ.
1
10
typ.
1
1
NOISE FIGURE (db)
.1
-5
10
COLLECTOR CURRENT (A)
-4
10
.1
-3
10
FIGURE 10
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
Page 10
NOISE FIGURE (dB) VS SOURCE RESISTANCE
TJ = 25 C VCE = 5 V IC = 10 uA f = 100 Hz
10
2N2484
10
8
6
4
2
NF, NOISE FIGURE (dB)
0
2
10
RG, SOURCE RESISTANCE (OHMS)
3
10
FIGURE 11
8
6
4
2
4
10
0
5
10
MSCO280A 06-10-98 DSW2N2484 <-> (34285)
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