2SA1492 Silicon PNP Epitaxial Planar TransistorPNP

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2SA1492

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Description

Silicon PNP Epitaxial Planar TransistorPNP

Not found, similar datasheet recommended

ECAD Module
Collector Current (DC) : 15(A)
Brand: Sanken Electric
Package / Case: TO-3P
Collector-Base Voltage: 180(V)
Collector-Emitter Voltage: 180(V)
Emitter-Base Voltage: 6(V)
Frequency: 20(MHz)
Package Type: TO-3P
Power Dissipation: 130(W)
Mounting: Through Hole
Operating Temperature Classification: Military
Operating Temp Range: -55C to 150C
Rad Hardened: No
Pin Count: 3 +Tab
Number of Elements: 1
Transistor Polarity: PNP
Category : Bipolar Power
DC Current Gain: 50

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ECAD Module

Product Attributes

2SA1492 is a PNP silicon transistor manufactured by Sanken. It is a high-power transistor with a maximum collector current of 8 A and a maximum collector-emitter voltage of 80 V. It is commonly used in power amplifiers, switching circuits, and other high-power applications. Features: High collector current: 8 A High collector-emitter voltage: 80 V High power dissipation: 100 W Low collector-base voltage: 6 V Low collector-emitter saturation voltage: 0.3 V Applications: Power amplifiers Switching circuits High-power applications (For reference only)

Description

The 2SA1492 is a high quality, single chip, multiformat video decoder and graphics digitizer. This multiformat decoder supports the conversion of PAL, NTSC, and SECAM standards in the form of composite or S-video into a digital ITU-R BT.656 format.

2SA1492 PNP Power Transistor

The 2SA1492 is a general purpose PNP power transistor. It has three pins that are a) Base b) Emitter and c) Collector. The 2SA1492 comes with TO-3PN package and used for audio and general purpose.

Pins Assignment of 2SA1492 PNP Power Transistor:

Below in figure 1 is the pin assignment for 2SA1492. For correct use in circuit turn unflatten side of transistor towards your face on the left side at position 1 is Base then Collector and finally Emitter at right most.

SupplierFile/202006/09/f_99cee2826ed4456aa2f4915631b01ae1.png

Figure 1

2SA1492 Pins Configuration:

Pin Number	Pin Name	Pins Description
1	Base	Used to turn ON and turn OFF the transistor (Biasing)
2	Collector	Current flows in through this and usually connected to load
3	Emitter	For current to flow out, connected with ground.

Table 1

Features of 2SA1492:

1. TO-3PN package

2. Turn-On time: 0.6us (At T_J =25℃)

3. Fall time:0.2us (At T_J =25℃)

4. Collector-emitter breakdown voltage: -180V (At T_J =25℃)

5. Collector-emitter saturation voltage: -2V (At T_J =25℃)

6. Collector-base voltage: -6V (At T_J =25℃)

7. Collector current: -15A

8. Base current: -4A

9. Collector power dissipation: 130W

10. DC current gain: 50 to 180 (At T_J =25℃)

11. Transition frequency: 20MHz (At T_J =25℃)

Note: here T_J represents junction temperature.

Equivalent of 2SA1492: 2SA1302, MJL21193

Complement of 2SA1492: The complement of 2SA1492 is 2SC3856

Uses of 2SA1492:

A 2SA1492 as discussed, it is a 3 pins PNP power transistor. 2SA1492 is basically a general purpose transistor which we can use in various applications. Before using 2SA1492 PNP power transistor always see your requirements and then compare with different available transistor in different specification.

2SA1492 is a general purpose PNP transistor and used normally in audio amplifiers. The use of 2SA1492 is shown in figure 2 which is the schematic of basic amplifier of 300W Subwoofer power amplifier which is intend to use for 4 ohm load only and not more than 4 ohms load. The total DC is almost above 110 V which is therefore not recommended to design at beginner level because of different hazards and specially electric shock due to 110 V DC in this circuit.

If look in to the schematic we can see that the input is provided through 4.7 uF bipolar cap which provides enough capacitance in small size whereas, R1 and C2 act as a filter. To avoid dreaded turn on thump current sink Q1 is used in emitter circuit. To keep circuit functioning smoothly use heat sink for all three driver transistors (Q4, 5 and 6) and D2 and D3 should be in good thermal contact with the driver heat sink.

SupplierFile/202006/09/f_01e6d5907e094c75a3da30599379bdec.png

Figure 2

To use this circuit for continuous high power another 4 output transistors are required in same configuration as Q9, Q10, Q11 and Q12 with 0.1 ohm emitter resistors. Similarly we can use this transistor in many other ways.

Working of 2SA1492 PNP Transistor:

As mentioned earlier it is a 3 pin PNP power transistor. The small amount of base current control current between collector and emitter. A PNP transistor has two back to back diodes and the direction of the current flow is from emitter to collector in PNP transistor. For a PNP transistor to conduct it is must for emitter voltage to be more positive than base and collector voltages. The base terminal is biased negative with respect to emitter. Base current will flow in the PNP transistor when base current will be more negative than emitter.

2D Model of 2SA1492 Transistor:

Below in figure 3 is the 2D model of 2SA1492 with all dimesnions in millimeter.

SupplierFile/202006/09/f_223e5971334540eabe77e5814438fa40.png

Figure 3

Preview of the first 3 pages of the data sheet

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Product Reviews

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10000 buyer reviews from United States

mauricio galvez ve17343

2SA1492

United States miami

Length of registration:5 years

Very satisfied with

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02/01/2021

Sarah Jackson

2SA1492-Y

United States

Length of registration:7 years

We recently purchased 2SA1492-Y from Utsource and we are pleased with the quality of the product. The component is working as expected and we appreciate the prompt delivery. Thank you for your excellent service.

Reply0

03/17/2023

Carlos Manzur

2SA1492 2SC3856

United States Santiago

Length of registration:1 years

The package is tight and there is no damage, the quality of the goods is very good, and the delivery speed is fast. Overall, it is a pleasant shopping, and I will buy it again next time if I need it!

Reply0

10/12/2022

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Alternate Names

2SA1492

2SA1492 has several brands around the world that may have alternate names for 2SA1492 due to regional differences or acquisition. 2SA1492 may also be known as the following names: