What is B1270?
This is PNP Transistor, 2SB1270. A PNP transistor is a type of bipolar junction transistor (BJT) with a different structure and polarity compared to an NPN transistor. |
[PDF] Complete Technical Details can be found in the
B1270 datasheet
provided at this page.Summary in PDF FileOrdering number EN2266A PNP NPN Epitaxial Planar Type Silicon Transistors 2SB1270 2SD1906 High Current Switching Applications Applications Suitable for relay drivers high speed inverters converters and other general high current switching applications Features Suitable for sets whose height is restricted Low collector to emitter saturation voltage Large current capacity Package Dimensions unit mm 2049B 2SB1270 2SD1906 2SB1270 Specifications E Emitter C Collector B Base SANYO TO 220MF Absolute Maximum Ratings at Ta 25 C Parameter Collector to Base Voltage Collector to Emitter Voltage Emitter to Base Voltage Collector Current Collector Current Pulse Collector Dissipation Symbol VCBO VCEO VEBO IC ICP PC Junction Temperature Storage Temperature Tj Tstg Tc 25 C Conditions Ratings 90 80 6 5 9 1 65 30 150 55 to 150 Unit V V V A A W W C C Electrical Characteristics at Ta 25 C Parameter Collector Cutoff Current Emitter Cutoff Current DC Current Gain Gain Bandwidth Product Collector to Emitter Saturation Voltage Symbol Conditions ICBO IEBO hFE1 hFE2 fT VCE sat VCB 80V IE 0 VEB 4V IC 0 VCE 2V IC 1A VCE 2V IC 3A VCE 5V IC 1A IC |
Datasheet Download (PDF) |
[ Detailed Data ] |
Here are characteristics of PNP transistors: Structure: A PNP transistor has a sandwich-like structure, consisting of a thin P-type layer (base) sandwiched between two N-type layers (emitter and collector). Polarity: In a PNP transistor, the majority charge carriers are holes, which flow from the emitter to the collector. The emitter is negative relative to the base, and the collector is positive relative to the base. Current flow: When a small current is applied to the base terminal, it allows a much larger current to flow from the emitter to the collector. This is called amplification or gain, and it makes the PNP transistor useful as an electronic switch or amplifier. Voltage levels: The voltage levels in a PNP transistor are opposite to those in an NPN transistor. In a PNP transistor, the base-emitter junction is forward-biased and the collector-base junction is reverse-biased. Biasing: PNP transistors are biased in the opposite direction to NPN transistors. To turn on a PNP transistor, the base must be more negative than the emitter, and to turn it off, the base must be more positive than the emitter. Manufacturers : Sanyo  |
SANYO B1270 DATA PNP Transistor, 2SB1270 |
Datasheet B1270 PDF DownLoad ( SANYO ) |