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BC81840
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We source brand-new parts via original manufacturers, franchised distributors or verified independent channels, with incoming inspection. Channel type is confirmed on your quote.

Contact sales or email [email protected] with MPN and quantity. We reply with stock, ETA and reference pricing — confirm before PO.

Reference price and stock shown as of 2026-09-22. Confirm live availability and unit price via RFQ before placing a PO.

BC81840

0.5A, 25V, NPN, TO
· Transistors - Bipolar (BJT) - Arrays · BOM Matching
Mfr. Part Number
BC81840
Manufacturer
None
Package / Case
TO-236-3, SC-59, SOT-23-3
Datasheet
Datasheet
Description
0.5A, 25V, NPN, TO
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
sample
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BC81840
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In Stock1,491
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Price
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Reference Price
QuantityPrice
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-09-22 · Valid as reference until 2026-09-29 · Request RFQ for live stock.
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Specification Summary

Package / Case
TO-236-3, SC-59, SOT-23-3
Supplier Device Package
SOT-23-3
Voltage - Collector Emitter Breakdown (Max)
25V
Current - Collector (Ic) (Max)
800mA
Current - Collector Cutoff (Max)
100nA
DC Current Gain (hFE) (Min) @ Ic, Vce
250 @ 100mA, 1V
Frequency - Transition
100MHz
Operating Temperature
150°C (TJ)
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-09-22. Confirm live availability and unit price via RFQ before placing a PO.
Lead time FAQ Authenticity FAQ MOQ FAQ
Specifications
Product Description
Purchase & Inquiry
Mounting Type
Surface Mount
Operating Temperature
150°C (TJ)
Current - Collector Cutoff (Max)
100nA
DC Current Gain (hFE) (Min) @ Ic, Vce
250 @ 100mA, 1V
Frequency - Transition
100MHz
Transistor Type
NPN
Vce Saturation (Max) @ Ib, Ic
700mV @ 50mA, 500mA
Current - Collector (Ic) (Max)
800mA
Power - Max
310mW
Supplier Device Package
SOT-23-3
Voltage - Collector Emitter Breakdown (Max)
25V
Package / Case
TO-236-3, SC-59, SOT-23-3
0.5A, 25V, NPN, TO
Brand Introduction
None
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Buying FAQ — BC81840

Answer-first notes for stock, authenticity, lead time and quoting. Marked up as FAQPage.

How do I buy BC81840 from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes BC81840. We reply with stock, channel note, reference price and ETA.

Is the listed price final?

Prices on the product page are reference only. Confirm unit price, currency and validity via RFQ before placing a PO.

How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.
BOM matching · Anti-counterfeit · Lead time & shipping

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