Pinout

BC548 PDF – 30V, 100mA, NPN Transistor, TO-92 Type

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Part Number: BC548

Function: 30V, 100mA, NPN Amplifier

Package: TO-92

Manufacturer: Fairchild Semiconductor

Images:BC548 pinout transistor

 

Description

BC548 is 30V, 100mA, NPN Epitaxial Silicon Transistor. 

Pinouts:

1. Collector 2. Base 3. Emitter

Features

• High-Voltage: BC546, VCEO = 65 V

• Low-Noise: BC549, BC550

• Complement to BC556, BC557, BC558, BC559, and BC560

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 30 V

2. Collector to Emitter Voltage: Vceo = 30 V

3. Emitter to Base Voltage: Vebo = 5 V

4. Collector Current: Ic = 100 mA

5. Collector Dissipation : Pc = 500 mW

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -65 ~ +150°C

Part Number Marking Package Packing Method

BC546ABU BC546A TO-92 3L Bulk
BC546ATA BC546A TO-92 3L Ammo
BC546BTA BC546B TO-92 3L Ammo
BC546BTF BC546B TO-92 3L Tape and Reel
BC546CTA BC546C TO-92 3L Ammo
BC547ATA BC547A TO-92 3L Ammo
BC547B BC547B TO-92 3L Bulk
BC547BBU BC547B TO-92 3L Bulk
BC547BTA BC547B TO-92 3L Ammo
BC547BTF BC547B TO-92 3L Tape and Reel
BC547CBU BC547C TO-92 3L Bulk
BC547CTA BC547C TO-92 3L Ammo
BC547CTFR BC547C TO-92 3L Tape and Reel
BC548BU BC548 TO-92 3L Bulk
BC548BTA BC548B TO-92 3L Ammo
BC548CTA BC548C TO-92 3L Ammo
BC549BTA BC549B TO-92 3L Ammo
BC549BTF BC549B TO-92 3L Tape and Reel
BC549CTA BC549C TO-92 3L Ammo
BC550CBU BC550C TO-92 3L Bulk
BC550CTA BC550C TO-92 3L Ammo

BC548 pdf datasheet

Applications:

1. Switching and Amplifier

BC548 PDF Datasheet

BC548 pdf

CIR2272AN PDF – RF Amplification Fixed Code Decoder

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This post explains for the Code Decoder.

The Part Number is CIR2272AN.

The function of this semiconductor is Built-in RF amplification fixed code decoder.

The package is DIP 18 Pin Type

Manufacturer: Chiprui

Preview images :

CIR2272AN pinout datasheet

Description

An RF amplification fixed code decoder is a device used to decode and process RF (radio frequency) signals in applications such as remote control systems, wireless security systems, or other wireless communication systems that utilize fixed code encoding.

CIR2272AN is a fixed code decoding integrated circuit with built-in RF amplification, which is paired with CIR2262A. Up to 312 groups of codes can be combined. The probability of repeated codes is reduced.

It integrates RF amplification. Thereby greatly simplifying the circuit of the product. Reduced production costs. The production process is reduced. Effectively optimize the design of the product circuit. This product is widely used in industrial remote control fields such as remote control doorbell, remote control switch, remote control alarm, etc.

RF amplification fixed code decoders are commonly used in various wireless communication systems that require the decoding and processing of fixed code RF signals. They are often employed in remote control systems for applications like garage door openers, wireless key fobs, wireless security systems, and other similar wireless control applications.

[…]CIR2272AN schematic pdf

Characteristic:

. COMS process integrated circuit
. With RF amplification mode
. Built-in RF signal shaping circuit
. Stable internal amplifier gain
. With optional function of working mode
. Available in DIP package

Application range:

. Remote doorbell
. Remote switch
. Remote alarm, etc.

CIR2272AN Datasheet