S4040NQRP is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Littelfuse Inc.
In Stock: 65
Unit Price: $5.83000
Datasheet

Parametric Equivalent


Littelfuse Inc.
In Stock: 0
Unit Price: $3.20982
Datasheet

Parametric Equivalent


Littelfuse Inc.
In Stock: 0
Unit Price: $6.04000
Datasheet

Parametric Equivalent


Littelfuse Inc.
In Stock: 0
Unit Price: $2.79512
Datasheet
SCR 400 V 40 A Standard Recovery Surface Mount TO-263 (D2PAK)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
SCR 400 V 40 A Standard Recovery Surface Mount TO-263 (D2PAK)
TO-263

S4040NQRP

DigiKey Part Number
S4040NQRPTR-ND - Tape & Reel (TR)
S4040NQRPCT-ND - Cut Tape (CT)
S4040NQRPDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
S4040NQRP
Description
SCR 400V 40A TO-263 (D2PAK)
Manufacturer Standard Lead Time
12 Weeks
Customer Reference
Detailed Description
SCR 400 V 40 A Standard Recovery Surface Mount TO-263 (D2PAK)
Datasheet
 Datasheet
Product Attributes
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Category
Current - On State (It (RMS)) (Max)
40 A
Manufacturer
Littelfuse Inc.
Current - Hold (Ih) (Max)
60 mA
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Current - Off State (Max)
10 µA
Part Status
Active
Current - Non Rep. Surge 50, 60Hz (Itsm)
430A, 520A
Voltage - Off State
400 V
SCR Type
Standard Recovery
Voltage - Gate Trigger (Vgt) (Max)
1.5 V
Operating Temperature
-40°C ~ 125°C
Current - Gate Trigger (Igt) (Max)
40 mA
Mounting Type
Surface Mount
Voltage - On State (Vtm) (Max)
1.8 V
Package / Case
TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Current - On State (It (AV)) (Max)
25 A
Supplier Device Package
TO-263 (D2PAK)
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (4)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
S4040NRPLittelfuse Inc.6518-S4040NRPTR-ND$5.83000Parametric Equivalent
S4040NTPLittelfuse Inc.0S4040NTP-ND$3.20982Parametric Equivalent
S4055NRPLittelfuse Inc.0F11483TR-ND$6.04000Parametric Equivalent
S4055NTPLittelfuse Inc.0S4055NTP-ND$2.79512Parametric Equivalent
In-Stock: 0
500 estimated in stock on 17-Feb-2027
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$7.00000$7.00
10$4.72100$47.21
100$3.43220$343.22
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
500$2.88332$1,441.66
1,000$2.83138$2,831.38
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.