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BC856-QR

Name: BC856-QR
Rating: 4.7 (12 reviews)

TRANS PNP 65V 0.1A TO236AB

製造商
製造商。部分 #BC856-QR
包 TO-236-3, SC-59, SOT-23-3
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規格

Supplier	Nexperia USA Inc.
Package	Bulk
Series	Automotive, AEC-Q101
ProductStatus	Active
TransistorType	PNP
Current-Collector(Ic)(Max)	100 mA
Voltage-CollectorEmitterBreakdown(Max)	65 V
VceSaturation(Max)@IbIc	650mV @ 5mA, 100mA
Current-CollectorCutoff(Max)	15nA (ICBO)
DCCurrentGain(hFE)(Min)@IcVce	125 @ 2mA, 5V
Power-Max	250 mW
Frequency-Transition	100MHz
OperatingTemperature	150°C (TJ)
MountingType	Surface Mount
Package/Case	TO-236-3, SC-59, SOT-23-3

概述

Description

BC856-QR is a PNP general‑purpose small‑signal transistor in a surface‑mount package (SOT‑23). It is the PNP complement of the BC846 family and is used for low‑power switching and amplification in compact circuits. The “-QR” suffix denotes a specific packaging/tape‑and‑reel/RoHS option from the manufacturer.
Key points:
- Suitable for signal switching and small‑signal amplification.
- Voltage rating typically around tens of volts (Vceo ≈ 45 V range).
- Current rating is in the tens-to-hundreds of milliamps range (depends on grade).
- Current gain (hFE) is broad, varying with Ic and temperature; generally high enough for common signal tasks.
- Low leakage and reasonable saturation performance make it versatile for generic applications.
Pinout and exact electrical specs vary by manufacturer, so always consult the specific datasheet for your BC856‑QR variant. Common usage includes high‑side/low‑side switching, sensor interfaces, and small amplifier stages in compact, RoHS‑compliant designs.

Features

BC856-QR is a PNP general-purpose small-signal transistor in the BC856 family. Core features:
- Vceo: -45 V (PNP; negative polarities)
- Ic: up to 100 mA
- VeBo: up to -5 V
- Gain (hFE): wide range (roughly 110–800 depending on Ic and lot)
- Low noise and suitable for switching and amplification
- Temperature range: -55°C to +150°C
- Packaging: available in standard small-signal packages (TO-92 or SOT-23 variants); QR suffix indicates RoHS-compliant/reel packaging in some datasheets
- Complement: BC846 (NPN) family; commonly paired with BC856 in designs
Applications: general-purpose amplification, switching, signal conditioning in low- to medium-power circuits.

Package

BC856-QR is a PNP small-signal transistor in a SOT-23 (3-pin) surface-mount package.

Pinout

- Pin count: 3
- Function: PNP general-purpose transistor (small-signal switch/ amplifier)
- Typical SOT-23 pinout: pin 1 = Emitter, pin 2 = Base, pin 3 = Collector
Note: verify exact orientation from the datasheet for your package variant.

Manufacturer

Manufacturer: Nexperia (formerly part of NXP Semiconductors).
What kind of company: Nexperia is a global semiconductor company that designs and manufactures discrete components (like transistors and diodes), logic, and mixed-signal devices.

Application

BC856-QR is a general-purpose, low-noise PNP small-signal transistor (Ic up to ~100 mA, Vceo ~ 45 V). Common applications: low-noise audio/video preamplifier stages, emitter-follower buffers, high-side level-shift switches in low-voltage logic, analog signal switching, sensor interfacing, and general-purpose switching in consumer electronics.

Equivalent

Common equivalents to the BC856 (PNP small‑signal transistor) include: BC557 (A/B/C groups), BC556, BC857, 2N3906 and 2N4403. Verify Vceo, hFE, power dissipation and pinout before substituting.