Part Details for BF421 by onsemi
Overview of BF421 by onsemi
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (0 crosses)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Part Details for BF421
BF421 CAD Models
BF421 Part Data Attributes:
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BF421
onsemi
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Datasheet
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BF421
onsemi
TRANSISTOR 500 mA, 300 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, TO-226AA, 3 PIN, BIP General Purpose Small Signal
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Part Life Cycle Code | Obsolete | |
Ihs Manufacturer | ONSEMI | |
Part Package Code | TO-92 | |
Package Description | TO-226AA, 3 PIN | |
Pin Count | 3 | |
Reach Compliance Code | unknown | |
ECCN Code | EAR99 | |
Collector Current-Max (IC) | 0.5 A | |
Collector-Emitter Voltage-Max | 300 V | |
Configuration | SINGLE | |
DC Current Gain-Min (hFE) | 50 | |
JEDEC-95 Code | TO-92 | |
JESD-30 Code | O-PBCY-T3 | |
Number of Elements | 1 | |
Number of Terminals | 3 | |
Operating Temperature-Max | 150 °C | |
Package Body Material | PLASTIC/EPOXY | |
Package Shape | ROUND | |
Package Style | CYLINDRICAL | |
Polarity/Channel Type | PNP | |
Power Dissipation-Max (Abs) | 1.5 W | |
Qualification Status | Not Qualified | |
Surface Mount | NO | |
Terminal Form | THROUGH-HOLE | |
Terminal Position | BOTTOM | |
Transistor Element Material | SILICON | |
Transition Frequency-Nom (fT) | 60 MHz |
Alternate Parts for BF421
This table gives cross-reference parts and alternative options found for BF421. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BF421, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
Part Number | Description | Manufacturer | Compare |
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BF491STOB | 500mA, 200V, PNP, Si, SMALL SIGNAL TRANSISTOR, PLASTIC, TO-92 COMPATIBLE, E-LINE PACKAGE-3 | Diodes Incorporated | BF421 vs BF491STOB |
2N3700G4 | 1000mA, 80V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-206AA, HERMETIC SEALED, METAL, TO-18, 3 PIN | TT Electronics Power and Hybrid / Semelab Limited | BF421 vs 2N3700G4 |
BC146 | Small Signal Bipolar Transistor, 0.05A I(C), 20V V(BR)CEO, 1-Element, NPN, Silicon, MINIATURE, MT-42, 3 PIN | Micro Electronics Corporation | BF421 vs BC146 |
BF421RLRB | Small Signal Bipolar Transistor, 0.5A I(C), 300V V(BR)CEO, 1-Element, PNP, Silicon, TO-92 | Motorola Semiconductor Products | BF421 vs BF421RLRB |
BF421RLRP | Small Signal Bipolar Transistor, 0.5A I(C), 300V V(BR)CEO, 1-Element, PNP, Silicon, TO-92 | Motorola Semiconductor Products | BF421 vs BF421RLRP |
BFT60.MOD | 1000mA, 35V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-205AD, HERMETIC SEALED, METAL, TO-39, 3 PIN | TT Electronics Power and Hybrid / Semelab Limited | BF421 vs BFT60.MOD |
BF492 | 500mA, 250V, PNP, Si, SMALL SIGNAL TRANSISTOR, PLASTIC, TO-92 COMPATIBLE, E-LINE PACKAGE-3 | Diodes Incorporated | BF421 vs BF492 |
2N3700G4 | Small Signal Bipolar Transistor, 1A I(C), 80V V(BR)CEO, 1-Element, NPN, Silicon, TO-206AA, HERMETIC SEALED, METAL, TO-18, 3 PIN | TT Electronics Resistors | BF421 vs 2N3700G4 |
2N3735 | Small Signal Bipolar Transistor, 1.5A I(C), 50V V(BR)CEO, NPN, Silicon, TO-5, TO-5, 3 PIN | Crimson Semiconductor Inc | BF421 vs 2N3735 |
BF493 | 500mA, 300V, PNP, Si, SMALL SIGNAL TRANSISTOR, PLASTIC, TO-92 COMPATIBLE, E-LINE PACKAGE-3 | Diodes Incorporated | BF421 vs BF493 |