MMBT5179 Fairchild Semiconductor, MMBT5179 Datasheet - Page 4

• Manufacturer Part Number: MMBT5179
• Description: TRANSISTOR RF NPN SOT-23
• Manufacturer: Fairchild Semiconductor

Specifications of MMBT5179

• Transistor Type: NPN
• Voltage - Collector Emitter Breakdown (max): 12V
• Frequency - Transition: 2GHz
• Noise Figure (db Typ @ F): 5dB @ 200MHz
• Gain: 15dB
• Power - Max: 225mW
• Dc Current Gain (hfe) (min) @ Ic, Vce: 25 @ 3mA, 1V
• Current - Collector (ic) (max): 50mA
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
• Configuration: Single
• Transistor Polarity: NPN
• Maximum Operating Frequency: 2000 MHz
• Collector- Emitter Voltage Vceo Max: 12 V
• Emitter- Base Voltage Vebo: 2.5 V
• Continuous Collector Current: 0.05 A
• Power Dissipation: 225 mW
• Maximum Operating Temperature: + 150 C
• Dc Collector/base Gain Hfe Min: 25 @ 3mA @ 1V
• Dc Current Gain Hfe Max: 250
• Minimum Operating Temperature: - 55 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MMBT5179TR

Test Circuit
- V
ee
RFC
2.2 K
1000 pF
(NOTE 2)
FIGURE 1: 500 MHz Oscillator Circuit
50 pF
V
CC
(NOTE 1)
RFC
175 pF
1000 pF
NOTE 1: 2 turns No. 16 AWG wire, 3/8 inch OD, 1 1/4 inch long
NOTE 2: 9 turns No. 22 AWG wire, 3/16 inch OD, 1/2 inch long
500 mHz Output
into 50
NPN RF Transistor
(continued)
3