Manufacturer Part Number

BC847BTT1G

Description

General-purpose NPN bipolar junction transistor for switching and amplification. Can handle collector-emitter voltages up to 45V and continuous collector currents up to 100mA. Designed for surface-mount use in ultra-small SC-75 (SOT-416) package. Maximum power dissipation is 225mW. Fast switching capability with transition frequency up to 100MHz. Suitable for high-density, space-limited PCBs. Manufactured by onsemi, RoHS3 compliant and meets REACH standards.

Specifications

Transistor Polarity: NPN

Maximum Collector-Emitter Voltage (Vce): 45V

Maximum Collector Current (Ic): 100mA

Maximum Power Dissipation: 225mW

Transition Frequency (fT): 100MHz

DC Current Gain (hFE): Minimum 200 @ Ic=2mA, Vce=5V

Collector Cutoff Current (ICBO): 15nA Max

Vce Saturation (Max) @ Ib=5mA, Ic=100mA: 600mV

Operating Temperature: -55°C to +150°C

Mounting Type: Surface Mount

Package: SC-75, SOT-416

Moisture Sensitivity Level: 1 (Unlimited)

RoHS Status: ROHS3 Compliant

REACH Status: Unaffected

Device Structure

Planar silicon NPN bipolar junction transistor

Three terminals: collector, base, emitter

Ultra-miniature SC-75, SOT-416 plastic surface mount package

Performance Characteristics

High DC gain for small signal amplification

Low saturation voltage for efficient switching

Fast transition frequency (100MHz) supports high-speed signal processing

Low collector cutoff current ensures low leakage

Application Environments

General purpose signal amplification in consumer electronics

Switching and digital circuits in computing and industrial applications

High-density PCB designs in mobile devices and wearables

Surface mount assemblies requiring small form factor transistors

Operating environments from -55°C to +150°C

Selection Guidelines

Choose this part for compact circuit layouts requiring high gain and moderate current handling

Check supply voltage and collector current requirements; do not exceed 45V Vce or 100mA Ic

For higher currents or larger packages, consider other members of the BC847 series

Verify compatibility with lead-free/RoHS production lines

Ensure transition frequency meets speed requirements of your design

Usage Considerations

Observe maximum absolute ratings to prevent device damage

Ensure proper PCB footprint for SC-75/SOT-416 to maintain mechanical integrity

Maintain junction temperature below 150°C for reliability

Dry pack not necessary, MSL1 component

Good layout practices for thermal dissipation recommended in dense assemblies

Potential Equivalent/Replacement Models

Equivalent SMD models:

BC847B, BC847BT (Nexperia, Diodes Inc., ON Semiconductor, Fairchild, Rohm)

MMBT3904 (higher current rating, similar function)

BC847BW (double transistor version)

BC847A/C (different HFE ranges; check gain requirements)

SMD SOT-23 versions: BC847B3T1G (onsemi), BC847BS

Through-hole alternative: BC547B (check pinout and size)

Selection depends on packaging, gain group, current/voltage needs

If these do not match your requirements, please contact the Ariat-Tech sales team for further assistance and alternative sourcing.

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