BC817-25LT1G NPN bipolar junction transistor with 45V collector-emitter voltage and 500mA collector current. Surface-mount SOT-23-3 package.
Mfr Part #:

BC817-25LT1G

Available from 9 distributors
Mfr Name: On Semiconductor
On Semiconductor
NPN bipolar junction transistor with 45V collector-emitter voltage and 500mA collector current. Surface-mount SOT-23-3 package.
Total Stock: 728,182 pcs
$ Price Range: $0.10

BC817-25LT1G Available from 9 distributors

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$0.10
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20 pcs $0.10
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BC817-25LT1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Base-Emitter On Voltage
Collector-Base Voltage (VCBO)
Collector-Emitter Voltage (VCEO)
Current
Current Gain Bandwidth Product (fT)
DC Current Gain (Minimum/Maximum @ IC = -100 mA; VCE = -1 V)
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter-Base Voltage (VEBO)
Frequency
Halogen Free
Lead Style
Mounting Type
Operating Temperature
Output Capacitance
Power
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

BC817-25LT1G Description

Short technical summary and product information.

The BC817-25LT1G is an NPN bipolar junction transistor from onsemi, designed for general purpose switching and amplification. It is part of the BC817 series, which includes multiple gain groups (BC817-16, -25, -40) to suit different circuit requirements.

 

The transistor features a maximum collector-emitter voltage (VCEO) of 45V and a collector-base voltage (VCBO) of 50V. It supports a continuous collector current of 500mA and dissipates up to 300mW on an alumina substrate (TA=25°C). The DC current gain (hFE) is specified between 160 and 400 at IC=100mA and VCE=1V, ensuring consistent performance.

 

With a minimum transition frequency (fT) of 100MHz and low output capacitance (typically 10pF), the BC817-25LT1G is well suited for low-frequency amplifier and switching circuits. The collector-emitter saturation voltage is limited to 700mV at 500mA, helping to maintain low power loss in saturation.

 

The device is available in a surface-mount SOT-23-3 package (also designated TO-236-3/SC-59), making it compact for space-constrained PCB designs. According to the datasheet, the part is Pb-free, halogen-free/BFR-free, and RoHS compliant. Operating temperature ranges from -65°C to +150°C.

BC817-25LT1G Quick Information

Product Type: NPN Bipolar Junction Transistor
Series: BC817-25L
Canonical Name: NPN Bipolar Transistor, 45V VCEO, 500mA IC, SOT-23-3
Subcategory: Single NPN BJT

BC817-25LT1G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

BC817-25LT1G Estimated Pricing

Qty Low High
1+ $0.21 $0.21
10+ $0.12 $0.12
100+ $0.07 $0.07
500+ $0.05 $0.05
1,000+ $0.05 $0.05
3,000+ $0.04 $0.04

Estimated market price range - modelled values for guidance only, not live distributor offers.

BC817-25LT1G Features

  • NPN bipolar junction transistor for general purpose.
  • 45V collector-emitter maximum voltage rating.
  • 500mA continuous collector current capability.
  • Surface-mount SOT-23-3 package design.
  • Pb-free, halogen-free, and RoHS compliant.

BC817-25LT1G Applications

  • General purpose switching and amplification tasks.
  • Use in low-power consumer electronics.
  • Suitable for signal conditioning circuits.

BC817-25LT1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the BC817-25LT1G?

The maximum collector-emitter voltage (VCEO) is 45V.

What is the maximum collector current?

The continuous collector current is rated at 500mA.

What package options are available for this transistor?

It comes in a surface-mount SOT-23-3 package (TO-236-3/SC-59).

What is the operating temperature range?

The junction and storage temperature range is -65°C to +150°C.

Is the BC817-25LT1G RoHS compliant?

Yes, per the datasheet it is Pb-free, halogen-free/BFR-free, and RoHS compliant. Note: compliance status from the database is unverified.

What is the DC current gain (hFE) of the BC817-25LT1G?

The DC current gain ranges from 160 to 400 at IC=100mA and VCE=1V.

What is the transition frequency of this transistor?

The minimum current-gain-bandwidth product (fT) is 100MHz at IC=10mA, VCE=5V, f=100MHz.

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