BC856-QR

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BC856-QR

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TRANS PNP 65V 0.1A TO236AB

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Thông số kỹ thuật

thuộc tính Giá trị
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

Tổng quan

Description

BC856-QR is a small-signal PNP transistor in an SMD package (QR variant). It’s the PNP complement of BC846 and is used for general-purpose amplification and switching in low-to-moderate current circuits. The QR suffix usually indicates a specific packaging/reel option (Pb-free, RoHS) for automated assembly.
Key specs (typical, vary by grade):
- Vceo: up to about 45 V
- Ic: up to 100 mA
- Ptot: ~250 mW
- hFE: broad range depending on grade (A/B/C variants), generally 100–300+ at small collector currents
- Temperature range: roughly -55 to 125 C
Usage tips:
- Emitter ties to the more positive rail (PNP); base must be about 0.6–0.7 V below emitter to turn on.
- Use a base resistor to limit base current.
- Suitable for signal amplification, buffering, and low-current switching in compact SMD designs.
Always consult the specific datasheet for the exact QR variant you have to confirm precise numbers.

Equivalent

BC856‑QR is a PNP general‑purpose transistor (SMD). Common equivalents/Cross references:
- MMBT3906 (SOT‑23)
- PMBT3906 (SOT‑23)
- MMBT5407 (PNP, higher voltage; SOT‑23)
- 2N3906 (through‑hole TO‑92)
- BC856A/B/C (same family, different gain grades)
Note: choose based on package, Vceo and hFE required.

Features

BC856-QR features (concise):
- PNP general-purpose small-signal transistor
- Complementary to BC846 (NPN)
- Surface-mount package (SOT-23/SC-70), RoHS-compliant
- Vceo up to about 65 V; Ic up to 100 mA
- Ptot ≈ 250 mW; Vcesat typically 0.2–0.3 V (with moderate drive)
- hFE (gain) depends on grade (A/B/C): roughly 100–800
- Wide operating temp range: -55°C to +150°C
- Low leakage; suitable for switching and amplification
- Commonly used for small-signal amplification, buffering, level shifting, and switching in compact designs

Pinout

- Pin count: 3 pins
- Function: PNP general-purpose transistor for low-power amplification and switching (BC856 family).

Manufacturer

- Manufacturer: Nexperia.
- What kind of company: A Dutch multinational semiconductor company that specializes in discrete and logic semiconductors (transistors, diodes, etc.), serving automotive, industrial, consumer, and communications markets. It originated as a spin-off from Philips/NXP.

Application

BC856-QR is a general‑purpose PNP small‑signal transistor (SOT‑23). Common application areas include:
- Small‑signal amplification and switching in consumer electronics
- High‑side switching and emitter‑follower buffering in bias/drive circuits
- Audio preamplifier input stages and sensor signal conditioning
- Level shifting and interface circuits for TTL/CMOS
- Analog biasing networks, current mirrors and other signal‑conditioning blocks
Typical ratings (approx.): Vceo ≈ 45 V, Ic up to ~100 mA, suitable for low‑noise, low‑to‑moderate current applications.

Package

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

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