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2N2857
RF & MICROWAVE DISCRETE LOW POWER TRANSISTORS
Features
• • • Silicon NPN, To-72 packaged UHF Transistor 1.6 GHz Current-Gain Bandwidth Product @ 5mA IC
2
Maximum Unilateral Gain = 13 dB (typ) @ 500 MHz
1 4
3
1. Emitter 2. Base 3. Collector 4. Case
TO-72
DESCRIPTION:
The 2N2857 is a silicon NPN transistor, designed for UHF equipment. Applications include low noise amplifier; oscillator, and mixer applications.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25 ° C) ( Tcase
Symbol Parameter Value Unit
VCEO VCBO VEBO PD IC
Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Maximum Device Dissipation Collector Current
15 30 2.5 200 40
V V V mW mA
Thermal Data
RTH(J-C) Thermal Resistance Junction-case 0.88 º C/mW
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.
2N2857
ELECTRICAL SPECIFICATIONS (Tcase = 25 ° C) E LECTRICAL STATIC
Symbol BVCEO BVCBO BVEBO ICBO HFE Test Conditions Min. Collector-Emitter Breakdown Voltage (IC = 3.0 mAdc, IB = 0) Collector-Base Breakdown Voltage (IC=1.0 µAdc, IE=0) Emitter-Base Breakdown Voltage (IE = 10 µAdc, IC = 0) Collector Cutoff Current (VCE = 15 V, IE = 0 V) DC Current Gain (IC = 3.0 mAdc, VCE = 1.0 V) 15 30 2.5 30 Value Typ. Max. .01 150 Unit V V V µA
DYNAMIC
Symbol fT NF Test Conditions Current-Gain - Bandwidth Product (IC = 5.0 mAdc, VCE = 6 V, f = 100 MHz) Noise Figure (50 Ohms) (IC = 1.5 mAdc, VCE = 6 V, f = 500 MHz) Value Min. Typ. 1.6 5.5 Max. Unit GHz dB
FUNCTIONAL
Symbol Test Conditions Maximum Unilateral Gain Maximum Available Gain Insertion Gain
IC = 12 mAdc, VCE = 10V, f = 500 MHz IC = 12 mAdc, VCE = 10V, f = 500 MHz IC = 12 mAdc, VCE = 10V, f = 500 MHz
Value Min. 9.5 Typ. 13 13.5 10.5 Max. -
Unit dB dB dB
G
U max
MAG
2
|S21|
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.
2N2857
Table 1. Common Emitter S-Parameters, @ VCE = 10 V, IC = 12 mA
f
S11
(MHz)
100 200 300 400 500 600 700 800 900 1000
|S11| 0.457 0.291 0.233 0.212 0.184 0.173 0.192 0.165 0.261 0.083
∠φ -44 -56 -60 -68 -76 -79 -89 -96 -121 149
S21
|S21| 12.49 8.06 5.3 3.88 3.36 2.97 2.39 1.89 2.72 1.27
∠φ 122 101 89 80 80 69 61 57 60 39
S12
|S12| 0.012 0.018 0.024 0.032 0.037 0.043 0.044 0.055 0.068 0.064
∠φ 63 55 81 55 49 46 44 43 29 18
S22
|S22| 0.823 0.712 0.728 0.723 0.711 0.717 0.72 0.731 0.746 0.749
∠φ -23 -35 -46 -60 -73 -86 -100 -115 -131 -148
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.
2N2857
.
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.
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