2N489 Datasheet, PDF (1/6 Pages) New Jersey Semi-Conductor Products, Inc. – Diode

DIGITRON SEMICONDUCTORS
2N489-2N494, A, B
NPN SILICON UNIJUNCTION TRANSISTOR
Silicon unijunction transistors are three-terminal device having a stable “N” type negative resistance characteristic over a wide
temperature range.
FEATURES
• Stable operation over wide temperature range
• Low leakage current
• Low peak point current
• Guaranteed minimum pulse voltage
• Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.
• Available Non-RoHS (standard) or RoHS compliant (add PBF suffix).
MAXIMUM RATINGS
Rating
Total RMS Power Dissipation (Unstabilized)
Total RMS Power Dissipation (Stabilized)
RMS Emitter Current
Peak Emitter Current (T_J = 150°C)
Emitter Reverse Voltage (T_J = 150°C)
Operating Temperature Range
Operating Temperature Range (Stabilized)
Storage Temperature Range
Value
450mW
600mW
70mA
2A
60 V
-65° to +140°C
-65° to +175°C
-65° to +175°C
ELECTRICAL CHARACTERISTICS (T_C = 25°C unless otherwise noted)
Intrinsic
standoff ratio
(1)
Interbase
resistance ⁽²⁾
Modulated
interbase
current
Emitter
saturation
voltage
Maximum
Emitter reverse current
Part number
V_RR = 10V
V_BB = 3V
I_R = 50mA
V_BB = 10V
I_E = 50mA
V_BB = 10V
V_B2E =
60V
T_J =
150°C
V_B2E =
10V
V_B2E
=30V
ŋ
Min
Max
R_BBO
kΩ
Min
Max
I_B2(MOI)
mA
Min
Max
V_E(SAT)
Volts
I_EB2O
µA
I_EB2O
µA
I_EB2O
µA
2N489
.51
.62
4.7
6.8
6.8
22
5
2
20
-
2N489A
.51
.62
4.7
6.8
6.8
22
4
2
20
-
2N489B
.51
.62
4.7
6.8
6.8
22
4
2
20
0.2
2N490
.51
.62
6.2
9.1
6.8
22
5
2
20
-
2N490A
.51
.62
6.2
9.1
6.8
22
4
2
20
-
2N490B
.51
.62
6.2
9.1
6.8
22
4
2
20
0.2
2N490C
.51
.62
6.2
9.1
6.8
22
4
2
20
0.02
2N491
.56
.68
4.7
6.8
6.8
22
5
2
20
-
2N491A
.56
.68
4.7
6.8
6.8
22
4.3
2
20
-
2N491B
.56
.68
4.7
6.8
6.8
22
4.3
2
20
0.2
2N492
.56
.68
6.2
9.1
6.8
22
5
2
20
-
2N492A
.56
.68
6.2
9.1
6.8
22
4.3
2
20
-
2N492B
.56
.68
6.2
9.1
6.8
22
4.3
2
20
0.2
2N492C
.56
.68
6.2
9.1
6.8
22
4.3
2
20
0.02
2N493
.62
.75
4.7
6.8
6.8
22
5
2
20
-
2N493A
.62
.75
4.7
6.8
6.8
22
4.6
2
20
-
2N493B
.62
.75
4.7
6.8
6.8
22
4.6
2
20
0.2
2N494
.62
.75
6.2
9.1
6.8
22
5
2
20
-
2N494A
.62
.75
6.2
9.1
6.8
22
4.6
2
20
-
2N494B
.62
.75
6.2
9.1
6.8
22
4.6
2
20
0.2
2N494C
.62
.75
6.2
9.1
6.8
22
4.6
2
20
0.02
Peak point
current
V_BB = 25V
I_P
µA
12
12
6
12
12
6
2
12
12
6
12
12
6
2
12
12
6
12
12
6
2
Minimum
Valley point
current
R_B2 = 100Ω
V_BB = 20V
Base one
peak pulse
voltage
I_V
mA
V_OB1
Volts
8
-
8
3
8
3
8
-
8
3
8
3
8
3
8
-
8
3
8
3
8
-
8
3
8
3
8
3
8
-
8
3
8
3
8
-
8
3
8
3
8
3
144 Market Street
Kenilworth NJ 07033 USA
phone +1.908.245-7200
fax +1.908.245-0555
[e-mail]
www.digitroncorp.com
Rev. 20121023