LM2940CS-12/NOPB is out of stock and can be placed on backorder.
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Linear Voltage Regulator IC Positive Fixed 1 Output 1A TO-263 (DDPAK-3)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Linear Voltage Regulator IC Positive Fixed 1 Output 1A TO-263 (DDPAK-3)
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

LM2940CS-12/NOPB

DigiKey Part Number
LM2940CS-12/NOPB-ND
Manufacturer
Manufacturer Part Number
LM2940CS-12/NOPB
Description
IC REG LINEAR 12V 1A TO263
Manufacturer Standard Lead Time
12 Weeks
Customer Reference
Detailed Description
Linear Voltage Regulator IC Positive Fixed 1 Output 1A TO-263 (DDPAK-3)
Datasheet
 Datasheet
EDA/CAD Models
LM2940CS-12/NOPB Models
Product Attributes
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Category
Current - Output
Mfr
Current - Quiescent (Iq)
10 mA
Packaging
Tube
Current - Supply (Max)
15 mA
Part Status
Active
PSRR
66dB (120Hz)
Output Configuration
Protection Features
Over Current, Over Temperature, Reverse Polarity, Short Circuit
Output Type
Operating Temperature
0°C ~ 125°C
Number of Regulators
1
Mounting Type
Surface Mount
Voltage - Input (Max)
26V
Package / Case
TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Voltage - Output (Min/Fixed)
12V
Supplier Device Package
TO-263 (DDPAK-3)
Voltage Dropout (Max)
0.8V @ 1A
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (10)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
UA7812CKTTRTexas Instruments0296-20798-2-ND$1.08000Similar
LM2940CSX-12/NOPBTexas Instruments0LM2940CSX-12/NOPBTR-ND$2.33000Parametric Equivalent
MIC29150-12WUMicrochip Technology0576-2207-ND$4.73000Similar
MIC29150-12WU-TRMicrochip Technology0MIC29150-12WU-TR-ND$4.73000Similar
MIC29300-12WUMicrochip Technology0576-2222-ND$4.45000Similar
In-Stock: 0
45 estimated in stock on 11-Jan-2027
Request Stock Notification
All prices are in USD
Tube
QuantityUnit PriceExt Price
1$2.60000$2.60
10$1.93700$19.37
45$1.68444$75.80
135$1.55689$210.18
270$1.49444$403.50
540$1.44304$779.24
1,035$1.40310$1,452.21
2,520$1.35906$3,424.83
5,040$1.33162$6,711.36
Note: Due to DigiKey value-add services the packaging type may change when product is purchased at quantities beneath the standard package.
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.