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MMBT3904
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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 2026-11-08. Confirm live availability and unit price via RFQ before placing a PO.

MMBT3904

SMALL SIGNAL TRANSISTOR
HY Electronic (Cayman) Limited · Transistors - Bipolar (BJT) - Single · BOM Matching
Mfr. Part Number
MMBT3904
Manufacturer
HY Electronic (Cayman) Limited
Package / Case
SOT-23
Datasheet
Datasheet
Description
SMALL SIGNAL TRANSISTOR
RoHS Status
Lead Free / RoHS Complaint
Availability
In Stock — Typically ships within 24 hours after order confirmation
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MMBT3904
HY Electronic (Cayman) Limited
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In Stock100,000
Unit
Price
$0.0236
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Reference Price
QuantityPrice
1$ 0.0236
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-11-08 · Valid as reference until 2026-11-15 · Request RFQ for live stock.
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Specification Summary

Supplier Device Package
SOT-23
Voltage - Collector Emitter Breakdown (Max)
40 V
Current - Collector (Ic) (Max)
200 mA
Current - Collector Cutoff (Max)
50nA
DC Current Gain (hFE) (Min) @ Ic, Vce
100 @ 10mA, 1V
Frequency - Transition
300MHz
Operating Temperature
150°C (TJ)
Mounting Type
Surface Mount
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: In Stock — Typically ships within 24 hours after order confirmation
Final ship date confirmed with payment / PO terms.
Reference price and stock shown as of 2026-11-08. 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)
50nA
DC Current Gain (hFE) (Min) @ Ic, Vce
100 @ 10mA, 1V
Frequency - Transition
300MHz
Transistor Type
NPN
Vce Saturation (Max) @ Ib, Ic
300mV @ 5mA, 50mA
Current - Collector (Ic) (Max)
200 mA
Power - Max
200 mW
Supplier Device Package
SOT-23
Voltage - Collector Emitter Breakdown (Max)
40 V
Package / Case
-
SMALL SIGNAL TRANSISTOR
Brand Introduction

HY Electronic (Cayman) Limited develops and manufactures rectifier diodes and bridge rectifiers. HY’s products are suitable for industries including computers, telecommunication, automobile, and consumer. HY is also active in product development related to the Green Energy for applications such as LED Lighting, Solar Power and Automobile Energy-Saving.

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Buying FAQ — MMBT3904

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

How do I buy MMBT3904 from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes MMBT3904. 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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