K7803JT-500R3-LB is out of stock and backorders are currently unavailable.
Available Substitutes:

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TDK-Lambda
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Unit Price: $24.47000
Datasheet

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Recom Power
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Unit Price: $4.39000
Datasheet
Non-Isolated PoL Module DC DC Converter 1 Output 3.3V 500mA 4.75V - 36V Input
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

K7803JT-500R3-LB

DigiKey Part Number
2725-K7803JT-500R3-LBTR-ND - Tape & Reel (TR)
2725-K7803JT-500R3-LBCT-ND - Cut Tape (CT)
2725-K7803JT-500R3-LBDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
K7803JT-500R3-LB
Description
LINEAR REGULATOR REPLACEMENT DC
Customer Reference
Detailed Description
Non-Isolated PoL Module DC DC Converter 1 Output 3.3V 500mA 4.75V - 36V Input
Datasheet
 Datasheet
Product Attributes
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Category
Current - Output (Max)
500mA
Manufacturer
Mornsun America, LLC
Applications
ITE (Commercial)
Series
Features
SCP
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Operating Temperature
-40°C ~ 85°C (With Derating)
Part Status
Not For New Designs
Efficiency
85%
Type
Non-Isolated PoL Module
Mounting Type
Surface Mount
Number of Outputs
1
Package / Case
4-SMD Module
Voltage - Input (Min)
4.75V
Size / Dimension
0.47" L x 0.47" W x 0.18" H (12.0mm x 12.0mm x 4.5mm)
Voltage - Input (Max)
36V
Approval Agency
CE
Voltage - Output 1
Standard Number
62368-1
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (2)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
I3A4W008A033V-001-RTDK-Lambda0285-2720-ND$24.47000Similar
ROF-78E3.3-0.5SMD-RRecom Power0945-1689-2-ND$4.39000Similar
In-Stock: 0
Not recommended for new design, minimums may apply View Substitutes or Alternative Package Types
Due to temporary constrained supply, DigiKey is unable to accept backorders at this time.
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.54000$0.54
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
700$0.53900$377.30
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