BC857A-TP
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Micro Commercial Co BC857A-TP

Manufacturer No:
BC857A-TP
Manufacturer:
Micro Commercial Co
Package:
Tape & Reel (TR)
Description:
TRANS PNP 45V 0.1A SOT23
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The BC857A-TP is a PNP general-purpose bipolar junction transistor (BJT) manufactured by Micro Commercial Co. This transistor is part of the BC857 series, known for its versatility in various electronic applications. The BC857A-TP is packaged in a SOT-23 surface mount format, making it suitable for automatic insertion and use in compact electronic designs.

Key Specifications

ParameterValueUnit
Collector-Base Voltage (Vcb)-50V
Collector-Emitter Voltage (Vce)-45V
Emitter-Base Voltage (Veb)-6V
Collector Current (Ic max)0.1A
Peak Collector Current (Icm)0.2A
Total Power Dissipation (Ptot)250mW
Operating Junction Temperature (Tj)-150 to 150°C
Transition Frequency (ft)300MHz
Collector Capacitance (Cc)6pF
DC Current Gain (hFE)125 - 800
PackageSOT-23

Key Features

  • Ideally suited for automatic insertion due to its SOT-23 package.
  • Low current (max. 100 mA) and low voltage (max. 45 V) capabilities.
  • Epitaxial planar die construction for reliable performance.
  • Moisture sensitivity level: 1, and ESD rating: >4000 V (human body model), >400 V (machine model).
  • Totally lead-free and fully RoHS compliant.
  • UL flammability classification rating 94V-0.

Applications

The BC857A-TP is designed for general-purpose switching and amplification applications. It is particularly useful in:

  • Switching circuits where low current and voltage are required.
  • Audio frequency (AF) amplifier applications due to its high transition frequency.
  • Automotive and industrial control systems where reliability and compactness are essential.

Q & A

  1. What is the package type of the BC857A-TP transistor?
    The BC857A-TP transistor is packaged in a SOT-23 surface mount format.
  2. What are the maximum collector-base and collector-emitter voltages for the BC857A-TP?
    The maximum collector-base voltage (Vcb) is -50 V, and the maximum collector-emitter voltage (Vce) is -45 V.
  3. What is the maximum collector current for the BC857A-TP?
    The maximum collector current (Ic max) is 0.1 A.
  4. What is the transition frequency of the BC857A-TP transistor?
    The transition frequency (ft) is 300 MHz.
  5. Is the BC857A-TP transistor RoHS compliant?
    Yes, the BC857A-TP transistor is totally lead-free and fully RoHS compliant.
  6. What are the typical applications of the BC857A-TP transistor?
    The BC857A-TP is used in general-purpose switching and amplification applications, including AF amplifier circuits and automotive control systems.
  7. What is the operating junction temperature range for the BC857A-TP?
    The operating junction temperature (Tj) range is -150 to 150 °C.
  8. What is the DC current gain (hFE) range for the BC857A-TP?
    The DC current gain (hFE) range is 125 to 800.
  9. Is the BC857A-TP suitable for automatic insertion?
    Yes, the BC857A-TP is ideally suited for automatic insertion due to its SOT-23 package.
  10. What is the total power dissipation (Ptot) of the BC857A-TP?
    The total power dissipation (Ptot) is 250 mW.

Product Attributes

Transistor Type:PNP
Current - Collector (Ic) (Max):100 mA
Voltage - Collector Emitter Breakdown (Max):45 V
Vce Saturation (Max) @ Ib, Ic:650mV @ 5mA, 100mA
Current - Collector Cutoff (Max):15nA
DC Current Gain (hFE) (Min) @ Ic, Vce:125 @ 2mA, 5V
Power - Max:310 mW
Frequency - Transition:200MHz
Operating Temperature:-55°C ~ 150°C (TJ)
Mounting Type:Surface Mount
Package / Case:TO-236-3, SC-59, SOT-23-3
Supplier Device Package:SOT-23
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Similar Products

Part Number BC857A-TP BC857B-TP
Manufacturer Micro Commercial Co Micro Commercial Co
Product Status Active Active
Transistor Type PNP PNP
Current - Collector (Ic) (Max) 100 mA 100 mA
Voltage - Collector Emitter Breakdown (Max) 45 V 45 V
Vce Saturation (Max) @ Ib, Ic 650mV @ 5mA, 100mA 650mV @ 5mA, 100mA
Current - Collector Cutoff (Max) 15nA 15nA
DC Current Gain (hFE) (Min) @ Ic, Vce 125 @ 2mA, 5V 220 @ 2mA, 5V
Power - Max 310 mW 310 mW
Frequency - Transition 200MHz 200MHz
Operating Temperature -55°C ~ 150°C (TJ) -55°C ~ 150°C (TJ)
Mounting Type Surface Mount Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3 TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23 SOT-23

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