BF414, BF419, BF420 Selling Leads, Datasheet
MFG:559 Package Cooled:TO-92 D/C:00+
BF414, BF419, BF420
- Table of contents:
Info of BF414
Info of BF419
Info of BF420
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About BF414
PDF/DataSheet Download
Datasheet: BF414
File Size: 13821 KB
Manufacturer: SIEMENS [Siemens Semiconductor Group]
Download : Click here to Download
About BF419
PDF/DataSheet Download
Datasheet: BF419
File Size: 66963 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About BF420
PDF/DataSheet Download
Datasheet: BF420
File Size: 40128 KB
Manufacturer: ONSEMI [ON Semiconductor]
Download : Click here to Download
BF414 Maximum Ratings
| Parameter | Symbol | Values | Unit |
| Collector-emitter voltage | VCE0 | 30 | V |
| Collector-base voltage | VCB0 | 40 | |
| Emitter-base voltage | VEB0 | 4 | |
| Collector current | IC | 25 | mA |
| Base current | IB | 3 | |
| Total power dissipation, TA 45 ˚C | Ptot | 300 | mW |
| Junction temperature | Tj | 150 | |
| Storage temperature range | Tstg | 55 . + 150 |
BF414 Typical Application
For low-noise, common base VHF and FM stages
BF414 Connection Diagram
BF419 General Description
NPN high-voltage transistor in a TO-126; SOT32 plastic package.
BF419 Maximum Ratings
| SYMBOL | PARAMETER | CONDITIONS | MIN. | MAX. | UNIT |
| VCBO | collector-base voltage | open emitter | - | 300 | V |
| VCEO | collector-emitter voltage | open base | - | 250 | V |
| VEBO | emitter-base voltage | open collector | - | 5 | V |
| IC | collector current (DC) | - | 100 | mA | |
| ICM | peak collector current | note 1 | - | 300 | mA |
| IBM | peak base current | - | 100 | mA | |
| Ptot | total power dissipation | Tmb 90 | - | 6 | W |
| Tamb 70 | - | 800 | mW | ||
| Tstg | storage temperature | −65 | +150 | ||
| Tj | junction temperature | - | 150 | ||
| Tamb | operating ambient temperature | −65 | +150 |
1. Precautions should be taken during switch-on of the BF419 where an overshoot of current is likely to occur.
The amplitude of the overshoot depends on the relative magnitude of stray external capacities to the transistor
collector capacity. It is desirable to keep the stray capacities to a minimum by short lead lengths etc. so as to minimize the area of the switching path.
BF419 Features
• Low current (max. 100 mA)
• High voltage (max. 250 V).
• High voltage (max. 250 V).
BF419 Typical Application
• Driver for line output transistors in colour television receivers.
BF419 Connection Diagram
BF420 Maximum Ratings
| Symbol | Value | Unit | |
| Collector-Base Voltage BF420BF422 | VCBO VCBO |
300 250 |
V V |
| Collector-Emitter Voltage BF422 | VCEO | 250 | V |
| Collector-Emitter Voltage BF420 | VCER | 300 | V |
| Emitter-Base Voltage | VEBO | 5 | V |
| Collector Current | IC | 50 | mA |
| Peak Collector Current | ICM | 100 | mA |
| Power Dissipation at Tamb = 25 | Ptot | 8301) | mW |
| Junction Temperature | Tj | 150 | |
| Storage Temperature Range | TS | 65 to +150 |
BF420 Features
NPN Silicon Epitaxial Planar Transistors especially suited for application in class-B video output stages of TV receivers and monitors.
As complementary types, the PNP transistors BF421 and BF423 are recommended
As complementary types, the PNP transistors BF421 and BF423 are recommended
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