MP3921GU-Z is out of stock and can be placed on backorder.
Available Substitutes:

Direct


Monolithic Power Systems Inc.
In Stock: 0
Unit Price: $1.67880
Datasheet
Power Over Ethernet Controller 1 Channel 802.3at (PoE+), 802.3af (PoE) 32-QFN (5x5)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

MP3921GU-Z

DigiKey Part Number
1589-MP3921GU-ZTR-ND - Tape & Reel (TR)
1589-MP3921GU-ZCT-ND - Cut Tape (CT)
1589-MP3921GU-ZDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
MP3921GU-Z
Description
SINGLE-PORT, IEEE 802.3AF/AT PSE
Manufacturer Standard Lead Time
20 Weeks
Customer Reference
Detailed Description
Power Over Ethernet Controller 1 Channel 802.3at (PoE+), 802.3af (PoE) 32-QFN (5x5)
Datasheet
 Datasheet
Product Attributes
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Category
Auxiliary Sense
No
Manufacturer
Monolithic Power Systems Inc.
Standards
802.3at (PoE+), 802.3af (PoE)
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Voltage - Supply
44V ~ 57V
Part Status
Active
Current - Supply
2mA
Type
Controller (PD)
Operating Temperature
-40°C ~ 125°C (TJ)
Number of Channels
1
Mounting Type
Surface Mount
Power - Max
40 W
Package / Case
32-VFQFN Exposed Pad
Internal Switch(s)
No
Supplier Device Package
32-QFN (5x5)
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
MP3921GU-PMonolithic Power Systems Inc.01589-MP3921GU-PTR-ND$1.67880Direct
In-Stock: 0
5,000 estimated in stock on 12-Feb-2027
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$2.63000$2.63
10$1.96000$19.60
25$1.79240$44.81
100$1.60780$160.78
250$1.51976$379.94
500$1.46668$733.34
1,000$1.42301$1,423.01
2,500$1.37690$3,442.25
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
5,000$1.34911$6,745.55
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.