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PDF 3SK252 Data sheet ( Hoja de datos )
| Número de pieza | 3SK252 | |
| Descripción | RF AMPLIFIER FOR CATV TUNER N-CHANNEL Si DUAL GATE MOS FIELD-EFFECT TRANSISTOR 4 PINS MINI MOLD | |
| Fabricantes | NEC | |
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Hay una vista previa y un enlace de descarga de 3SK252 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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DATA SHEET
MOS FIELD EFFECT TRANSISTOR
3SK252
RF AMPLIFIER FOR CATV TUNER
N-CHANNEL Si DUAL GATE MOS FIELD-EFFECT TRANSISTOR
4 PINS MINI MOLD
FEATURES
• Low VDD Use
: (VDS = 3.5 V)
• Driving Battery
• Low Noise Figure : NF1 = 2.0 dB TYP. (f = 470 MHz)
NF2 = 0.8 dB TYP. (f = 55 MHz)
• High Power Gain : GPS = 19.0 dB TYP. (f = 470 MHz)
• Suitable for use as RF amplifier in CATV tuner.
• Automatically Mounting : Embossed Type Taping
• Package
: 4 Pins Mini Mold
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C)
Drain to Source Voltage
Gate1 to Source Voltage
Gate2 to Source Voltage
VDSX
VG1S
VG2S
18
±8*1
±8*1
V
V
V
Gate1 to Drain Voltage
VG1D
18
V
Gate2 to Drain Voltage
VG2D
18
V
Drain Current
Total Power Dissipation
ID
PD
25
200*2
mA
mW
Channel Temperature
Tch 125 °C
Storage Temperature
Tstg –55 to +125 °C
*1: RL ≥ 10 kΩ
*2: Free air
PACKAGE DIMENSIONS
(Unit: mm)
2.8
+
–
0.2
0.3
1.5
+
–
0.2
0.1
5˚ 5˚
5˚ 5˚
PIN CONNECTIONS
1. Source
2. Drain
3. Gate2
4. Gate1
PRECAUTION:
Avoid high static voltages or electric fields so that this device would not suffer from any damage due to those voltage
or fields.
Document No. P10582EJ2V0DS00 (2nd edition)
(Previous No. TD-2373)
Date Published August 1995 P
Printed in Japan
© 1993
1 page  
3SK252
GPS AND NF TEST CIRCUIT AT f = 470 MHz
VG2S
1 000 pF
22 kΩ
1 000 pF
Ferrite Beads
INPUT 40 pF
50 Ω
L1
1 000 pF
15 pF
22 kΩ
15 pF
L2 40 pF OUTPUT
50 Ω
1 000 pF
L3
1 000 pF
VG1S
1 000 pF
VDS
L1 : φ1.2 mm U.E.W φ 5 mm 1T
L2 : φ1.2 mm U.E.W φ 5 mm 1T
L3 : REC 2.2µ H
NF TEST CIRCUIT AT f = 55 MHz
INPUT
50 Ω
VG2S
VDS
2.2 kΩ
RFC
Ferrite Beads
1 500 pF
1 000 pF
27 pF
3.3
kΩ
47 kΩ
47 kΩ
1 000 pF
1 500 pF
27 pF
3.3 kΩ
OUTPUT
50 Ω
VG1S
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet 3SK252.PDF ] | |
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