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BCY59X
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Reference price and stock shown as of 2026-10-29. Confirm live availability and unit price via RFQ before placing a PO.

BCY59X

TRANS NPN 45V 0.2A TO18
STMicroelectronics · Transistors - Bipolar (BJT) - Single · BOM Matching
Mfr. Part Number
BCY59X
Manufacturer
STMicroelectronics
Package / Case
TO-206AA, TO-18-3 Metal Can
Datasheet
Datasheet
Description
TRANS NPN 45V 0.2A TO18
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
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BCY59X
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In Stock8,501
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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 2026-10-29 · Valid as reference until 2026-11-05 · Request RFQ for live stock.
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Specification Summary

Package / Case
TO-206AA, TO-18-3 Metal Can
Supplier Device Package
TO-18
Voltage - Collector Emitter Breakdown (Max)
45 V
Current - Collector (Ic) (Max)
200 mA
Current - Collector Cutoff (Max)
10nA
DC Current Gain (hFE) (Min) @ Ic, Vce
180 @ 2mA, 5V
Frequency - Transition
200MHz
Operating Temperature
175°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 2026-10-29. 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
Through Hole
Operating Temperature
175°C (TJ)
Current - Collector Cutoff (Max)
10nA
DC Current Gain (hFE) (Min) @ Ic, Vce
180 @ 2mA, 5V
Frequency - Transition
200MHz
Transistor Type
NPN
Vce Saturation (Max) @ Ib, Ic
700mV @ 2.5mA, 100mA
Current - Collector (Ic) (Max)
200 mA
Power - Max
390 mW
Supplier Device Package
TO-18
Voltage - Collector Emitter Breakdown (Max)
45 V
Package / Case
TO-206AA, TO-18-3 Metal Can
TRANS NPN 45V 0.2A TO18
Brand Introduction
STMicroelectronics is a global independent semiconductor company and is a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivaled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence trends.
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Buying FAQ — BCY59X

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

How do I buy BCY59X from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes BCY59X. 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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