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BC848B

Name: BC848B
Rating: 4.8 (15 reviews)

+物料清單

TRANS NPN 30V 0.1A SOT23-3

製造商飛兆電晶體公司
製造商部分 #BC848B
數據表 BC848B DataSheet
包裹 SOT-23-3
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正品保證

規格

屬性	價值
Package / Case	Bulk
Series	SOT-23
Part Status	Active
Transistor Type	NPN
Current - Collector(Ic)(Max)	100 mA
Voltage - Collector Emitter Breakdown(Max)	30 V
Vce Saturation(Max) @ Ib Ic	500mV @ 5mA, 100mA
Current - Collector Cutoff(Max)	100nA (ICBO)
DC Current Gain(h FE)(Min) @ Ic Vce	200 @ 2mA, 5V
Power - Max	200 mW
Frequency - Transition	100MHz
Operating Temperature	-65°C ~ 150°C (TJ)
Mounting Type	Surface Mount

概述

Description

The BC848B is a general-purpose NPN bipolar junction transistor (BJT) commonly used in amplification and switching applications. Key features include:
- Package: SOT-23 (small surface-mount)
- Voltage Ratings:
- Collector-Emitter (V_CE): 30V
- Collector-Base (V_CB): 30V
- Emitter-Base (V_EB): 5V
- Current Ratings:
- Continuous Collector Current (I_C): 100mA
- Peak Current (pulsed): 200mA
- Gain (h_FE): 200–450 (at 2mA I_C)
- Power Dissipation (P_tot): 250mW
Applications: Low-power amplifiers, signal processing, and switching circuits. It is part of the BC848 series, with the "B" suffix indicating medium current gain.
Alternatives: BC547B (similar specs, TO-92 package).
For precise use, consult the datasheet for thermal and electrical limits.

Equivalent

The BC848B is a general-purpose NPN transistor. Equivalent alternatives include:
- 2N3904 (widely available)
- BC547B (similar specs)
- 2SC1815 (Japanese equivalent)
- MMBT3904 (SMD version)
- KSC1845 (higher voltage rating)
Check datasheets for exact parameter matching in your circuit.

Features

The BC848B is an NPN bipolar junction transistor (BJT) with the following key features:
- Package: SOT-23 (small surface-mount)
- Polarity: NPN
- Max Collector-Base Voltage (V_CB): 30V
- Max Collector-Emitter Voltage (V_CE): 30V
- Max Emitter-Base Voltage (V_EB): 5V
- Continuous Collector Current (I_C): 100mA
- Power Dissipation (P_tot): 250mW
- DC Current Gain (h_FE): 200–450 (at I_C = 2mA, V_CE = 5V)
- Transition Frequency (f_T): ~300MHz
Applications: Low-power amplification, switching, and signal processing in consumer electronics, audio circuits, and RF applications.
Complementary PNP: BC858B.
Compact, cost-effective, and widely used in SMD designs.

Pinout

The BC848B is a general-purpose NPN bipolar junction transistor (BJT) with 3 pins (TO-92 package):
1. Emitter (E) – Output for current flow.
2. Base (B) – Controls transistor switching/amplification.
3. Collector (C) – Receives current from the circuit.
Key Functions:
- Amplification: Boosts weak signals.
- Switching: On/off control for loads.
- Max Ratings: 30V (V_CEO), 100mA (I_C), 200mW (P_tot).
Common in low-power analog/digital circuits.

Package

The BC848B is a general-purpose NPN transistor available in a SOT-23 surface-mount package. This compact 3-pin package is widely used for small-signal amplification and switching applications. The SOT-23 is suitable for automated PCB assembly due to its small size (approx. 2.9 x 1.3 x 0.95 mm). Other variants (e.g., BC848) may share the same package.