PLANETA
The RF Line NPN Silicon High-Frequency Transistor
DESCRIPTION
The BFR91 is an NPN silicon epitaxial transistor designed for low noise amplifier at VHF, UHF and CATV band. It has dynamic range and good current characteristic. This small-signal plastic transistor offers superior quality and performance at low cost.
1
BFR91
3
2
FEATURES
Ø Ø Ø
1 – Base 2 – Collector 3 – Emitter
High Gain-Bandwidth Products fT=5.0 GHz (Typ) @ 30 mA Low Noise Figure NF=1.9 dB (Typ) @ 500 MHz High Gain GPS= 18.0 dB (Typ) @ 500 MHz
SOT37 JEDEC EIAJ GOST Weight: TO-50 – KT-29 0.2g
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C)
Rating Collector- Emitter Voltage Collector- Base Voltage Emitter- Base Voltage Collector Current Power Dissipation Junction Temperature Operating Junction Temperature Range Storage Temperature Range Symbol VCEO VCBO VEBO IC Ptot TJMAX TJ TSTG Value 12 20 2 50 300 150 -45 to +70 -65 to +150 Unit V V V mA mW °C °C °C
THERMAL CHARACTERISTIC
Thermal Resistance, Junction to Case RΘJC 400 °C/W
ORDERING INFORMATION
Device BFR91 Marking BFR91 Package SOT-37 Quantity Packing Style 1 Kpcs / plastic bags In bulk
PLANETA JSC, 2/13 Fedorovsky Ruchei, Veliky Novgorod, 173004, Russia © July 2000 Rev 1
Ph./Fax: +7–816–2231736 E-mail: planeta@novgorod.net http://www.novgorod.net/~planeta
BFR91
ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
Characteristic DC CHARACTERISTICS Collector Cutoff Current, IE= 0mA, VCB=20V Emitter Cutoff Current, IC= 0mA, VEB= 2V Collector – Emitter Breakdown Voltage, IC= 1mA, IB= 0mA DC Current Gain, IE=30mA, VCB= 5V AC CHARACTERISTICS Transition Frequency, IC=30mA, VCB= 5V, f=300MHz Collector-Base Capacitance, IE= 0mA, VCB=10V, f= 1MHz Noise Figure, IE= 2mA, VCE= 5V, f=500MHz, ZS=50Ω Power Gain, IE=30mA, VCE= 5V, f=500MHz, ZL=ZLopt IE=30mA, VCE= 5V, f=800MHz, ZL=ZLopt fT – Ccb – NF – GPS – – 18.0 13.0 – – 1.9 – dB 0.5 0.9 dB 5.0 – pF GHz ICBO – IEBO – V(BR)CEO 12 hFE 25 50 150 – – – – 10 V – 100 µA nA Symbol Min Typ Max Unit
TIPICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
350 1
300
Ccb - Collector Base Capacitance (pF Ptot - Total Power Dissipation (mW
0,8
250
200
0,6
150
0,4
100
0,2
VCB=10V f=1MHZ
50
0 0 20 40 60 80 100 120 140 160
0 0 5 10 15 20
VCB - Collector Base Voltage (V)
Tamb - Ambient Temperature (°C)
Figure 1. Total Power Dissipation vs. Ambient Temperature
Figure 2. Collector – Base Capacitance vs. Collector – Base Voltage
Ph./Fax: +7–816–2231736 E-mail: planeta@novgorod.net http://www.novgorod.net/~planeta
PLANETA JSC, 2/13 Fedorovsky Ruchei, Veliky Novgorod, 173004, Russia © July 2000 Rev 1
2
BFR91
TIPICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
7 3,5
6
fT - Transition Frequency (GHz
3
4
NF - Noise Figure (dB)
5
2,5
2
3
1,5
2
VCB=5V f=300MHZ
1 VCE=8V f=800MHZ 0,5
1
0 0 5 10 15 20 25 30 35 40 45 50
0 0 5 10 15 20 25 30 35 40
IE - Emitter Current (mA)
IE - Emitter Current (mA)
Figure 3. Transition Frequency vs. Emitter Current
14 140
Figure 4. Noise Figure vs. Emitter Current
12
120
GPS - Power Gain (dB)
8
hFE - DC Current Gain
10
100
80
6
60
4
VCE=5V f=800MHZ
40 VCB=5V 20
2
0 0 5 10 15 20 25 30 35 40
0 0 5 10 15 20 25 30
IE - Emitter Current (mA)
IE - Emitter Current (mA)
Figure 5. Power Gain vs. Emitter Current
Figure 6. DC Current Gain vs. Emitter Current+
PLANETA JSC, 2/13 Fedorovsky Ruchei, Veliky Novgorod, 173004, Russia © July 2000 Rev 1
Ph./Fax: +7–816–2231736 E-mail: planeta@novgorod.net http://www.novgorod.net/~planeta
3
BFR91
PACKAGE DIMENSIONS in mm
6,8max 5.2max
2,7max
1,2max
5°max on counter 5.5max 8,4max
1.4max
1max
Base 5.5max
Collector
Emitter
PLASTIC CASE KT-29
Ph./Fax: +7–816–2231736 E-mail: planeta@novgorod.net http://www.novgorod.net/~planeta
PLANETA JSC, 2/13 Fedorovsky Ruchei, Veliky Novgorod, 173004, Russia © July 2000 Rev 1
4
0,24max
